fao the big power cossy owners
#41
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Wow !!
Reading this makes me wonder why some of you are running Cossies.
Ive probably had more conversions than anyone else on here & none had cheap chips from Harry Ramsdens.
. All my engine were Dynoed & then live mapped.
My 330 conversion when checked gave about 24mpg on a run average around 20. At 500ish the average was around 18 although a tad over 20 was coaxed out of the old girl on a run. With the latest ECU at 640 ish bhp the average was about 17 although I once saw 22 on a long trip. Im expecting sub 15 on my new engine but probably still near 20 on a run.
If im really trying (we checked it at Brunters on a Topspeed run) it was less than 4mpg.
My wifes Proton Duo is around 30mpg average & some of you are claiming this from a non-standard Cossie,
.
Cossies are meant to be driven hard its the only way or buy a 1.3 Ka, mind you in my hands that would also be less than 20mpg.
.
Rod
Stu. The only engine ive killed was because we were running 950bhp on a Block that had done over 40k miles & the horses cracked it.
Reading this makes me wonder why some of you are running Cossies.
Ive probably had more conversions than anyone else on here & none had cheap chips from Harry Ramsdens.
![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
My 330 conversion when checked gave about 24mpg on a run average around 20. At 500ish the average was around 18 although a tad over 20 was coaxed out of the old girl on a run. With the latest ECU at 640 ish bhp the average was about 17 although I once saw 22 on a long trip. Im expecting sub 15 on my new engine but probably still near 20 on a run.
If im really trying (we checked it at Brunters on a Topspeed run) it was less than 4mpg.
My wifes Proton Duo is around 30mpg average & some of you are claiming this from a non-standard Cossie,
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
Cossies are meant to be driven hard its the only way or buy a 1.3 Ka, mind you in my hands that would also be less than 20mpg.
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
Rod
Stu. The only engine ive killed was because we were running 950bhp on a Block that had done over 40k miles & the horses cracked it.
#42
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Originally Posted by MadRod
Wow !!
Reading this makes me wonder why some of you are running Cossies.
Ive probably had more conversions than anyone else on here & none had cheap chips from Harry Ramsdens.
. All my engine were Dynoed & then live mapped.
My 330 conversion when checked gave about 24mpg on a run average around 20. At 500ish the average was around 18 although a tad over 20 was coaxed out of the old girl on a run. With the latest ECU at 640 ish bhp the average was about 17 although I once saw 22 on a long trip. Im expecting sub 15 on my new engine but probably still near 20 on a run.
If im really trying (we checked it at Brunters on a Topspeed run) it was less than 4mpg.
My wifes Proton Duo is around 30mpg average & some of you are claiming this from a non-standard Cossie,
.
Cossies are meant to be driven hard its the only way or buy a 1.3 Ka, mind you in my hands that would also be less than 20mpg.
.
Rod
Stu. The only engine ive killed was because we were running 950bhp on a Block that had done over 40k miles & the horses cracked it.
Reading this makes me wonder why some of you are running Cossies.
Ive probably had more conversions than anyone else on here & none had cheap chips from Harry Ramsdens.
![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
My 330 conversion when checked gave about 24mpg on a run average around 20. At 500ish the average was around 18 although a tad over 20 was coaxed out of the old girl on a run. With the latest ECU at 640 ish bhp the average was about 17 although I once saw 22 on a long trip. Im expecting sub 15 on my new engine but probably still near 20 on a run.
If im really trying (we checked it at Brunters on a Topspeed run) it was less than 4mpg.
My wifes Proton Duo is around 30mpg average & some of you are claiming this from a non-standard Cossie,
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
Cossies are meant to be driven hard its the only way or buy a 1.3 Ka, mind you in my hands that would also be less than 20mpg.
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
Rod
Stu. The only engine ive killed was because we were running 950bhp on a Block that had done over 40k miles & the horses cracked it.
![Surprised](https://passionford.com/forum/images/smilies/shocked.gif)
![Surprised](https://passionford.com/forum/images/smilies/shocked.gif)
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
#43
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Originally Posted by MadRod
My 330 conversion when checked gave about 24mpg on a run average around 20. At 500ish the average was around 18 although a tad over 20 was coaxed out of the old girl on a run
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
Thankfully, nowadays we can probably coax more out of them to start with, and we still only lose about the same percentage (Depends how you work out your average.) as mark will confirm if you ask him Rod, hes set a lot of engines up running my software.
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
Cossies are meant to be driven hard its the only way or buy a 1.3 Ka, mind you in my hands that would also be less than 20mpg.
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
*= Best of all though, im sure Rod didnt actually INTEND to agree with me.
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
#45
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Originally Posted by Stu @ M Developments
Originally Posted by MadRod
My 330 conversion when checked gave about 24mpg on a run average around 20. At 500ish the average was around 18 although a tad over 20 was coaxed out of the old girl on a run
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
Thankfully, nowadays we can probably coax more out of them to start with, and we still only lose about the same percentage (Depends how you work out your average.) as mark will confirm if you ask him Rod, hes set a lot of engines up running my software.
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
Cossies are meant to be driven hard its the only way or buy a 1.3 Ka, mind you in my hands that would also be less than 20mpg.
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
*= Best of all though, im sure Rod didnt actually INTEND to agree with me.
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
#46
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Originally Posted by Stu @ M Developments
Originally Posted by dovboy
more bhp requires more fuel simple,map the hell out of a 270bhp cos and do the same to a 400+ one and whats gonna use more fuel??? ![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Raz](https://passionford.com/forum/images/smilies/tongue.gif)
i'm sorry to say but with me it is mostly(at least 70% of the time)hard throttle driving
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
as i said in my first post ,if you want good mpg go see stu at msd!! why? cos we all know what you can do with these cars
![Clap](https://passionford.com/forum/images/smilies/9c-clap.gif)
out of interest stu could you get more power from a higher bhp cosworth if you chose to ignore fuel consumpsion? as i know you like to put out great allround cars
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#48
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i'm with dovboy on this,i use and abuse mine everyday....its all about the pure pleasure you get when flooring it..............when i'm on a run i get better fuel econony,but day to day.....who cares!!!!!.....i didn't buy it for its m.p.g.........
#50
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Originally Posted by dovboy
Originally Posted by Stu @ M Developments
Originally Posted by dovboy
more bhp requires more fuel simple,map the hell out of a 270bhp cos and do the same to a 400+ one and whats gonna use more fuel??? ![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Raz](https://passionford.com/forum/images/smilies/tongue.gif)
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
all i am saying is that the normal use for a high power cosworth is not motorway cruising only but a mix.
![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
out of interest stu could you get more power from a higher bhp cosworth if you chose to ignore fuel consumpsion? as i know you like to put out great allround cars
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
It makes me laugh when people turn out "One setting for economy and one for power" ROFLOL. These people prey on the un informed.
![Wall](https://passionford.com/forum/images/smilies/wall.gif)
![Sad](https://passionford.com/forum/images/smilies/icon_sad.gif)
#51
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What a prime example of people arguing about nothing. ![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
Why oh why adding a slightly lower comp or a bigger windmill should automatically make ur fuel econ, on cruise hurrendous is beyond me (and stu and AVA).
At the end of the day its still a 2 litre 16v engine. Why pore petrol in off boost?
Im sure some injectors are a little better for standard cruise conditions but surely not to the point they have to just pore in petrol even off boost.
RW
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
Why oh why adding a slightly lower comp or a bigger windmill should automatically make ur fuel econ, on cruise hurrendous is beyond me (and stu and AVA).
At the end of the day its still a 2 litre 16v engine. Why pore petrol in off boost?
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
RW
#52
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Originally Posted by rapidcossie
Surely no tuner looks for mpg over bhp ![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
In Formula 1, an extra 1mpg is worth some horsepower due to the pit time wasted adding fuel and of course its weight. They tune for the ultimate compromise, and interestingly, they are also the ultimate tuners. You would be shocked how lean they run those motors, its immensely impressive.
![Smokin](https://passionford.com/forum/images/smilies/icon_smokin.gif)
Rally teams also do the same of course... the less fuel you need to finish a stage, the better your power to weight.
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
Mind you, if you lot were tuning Hamiltons F1 car this week he would have come last as he would have wasted an additional 38 seconds coming in for fuel 3 times. "Who care about MPG? If its empty, fill it up"
![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
#53
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Why are you people not listening to stu?!
bhp is related to the amount of fuel you put in. You do not need to much fuel to get a certain number - its all about the right amount!
Take two similar cars, say one is std and one is at 500bhp, they will need to produce about the same bhp to cruise at 70mhp..... so the fuel consumtion should be about the same.
As soon as you boot it, even a little but, thats a whole different ball game![Big Grin](https://passionford.com/forum/images/smilies/icon_biggrin.gif)
Alex
bhp is related to the amount of fuel you put in. You do not need to much fuel to get a certain number - its all about the right amount!
Take two similar cars, say one is std and one is at 500bhp, they will need to produce about the same bhp to cruise at 70mhp..... so the fuel consumtion should be about the same.
As soon as you boot it, even a little but, thats a whole different ball game
![Big Grin](https://passionford.com/forum/images/smilies/icon_biggrin.gif)
Alex
#54
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Originally Posted by Steven_RW
What a prime example of people arguing about nothing. ![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
Interestingly, my article is about tuning AFR and spark lead.
![Wall](https://passionford.com/forum/images/smilies/wall.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
#55
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Originally Posted by Stu @ M Developments
Originally Posted by rapidcossie
Surely no tuner looks for mpg over bhp ![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
In Formula 1, an extra 1mpg is worth some horsepower due to the pit time wasted adding fuel and of course its weight. They tune for the ultimate compromise, and interestingly, they are also the ultimate tuners. You would be shocked how lean they run those motors, its immensely impressive.
![Smokin](https://passionford.com/forum/images/smilies/icon_smokin.gif)
Rally teams also do the same of course... the less fuel you need to finish a stage, the better your power to weight.
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
Mind you, if you lot were tuning Hamiltons F1 car this week he would have come last as he would have wasted an additional 38 seconds coming in for fuel 3 times. "Who care about MPG? If its empty, fill it up"
![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
I mean in this small world of ours where we tune cosworths.
#56
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Originally Posted by AlexF
Why are you people not listening to stu?!
bhp is related to the amount of fuel you put in. You do not need to much fuel to get a certain number - its all about the right amount!
Take two similar cars, say one is std and one is at 500bhp, they will need to produce about the same bhp to cruise at 70mhp..... so the fuel consumtion should be about the same.
As soon as you boot it, even a little but, thats a whole different ball game![Big Grin](https://passionford.com/forum/images/smilies/icon_biggrin.gif)
Alex
bhp is related to the amount of fuel you put in. You do not need to much fuel to get a certain number - its all about the right amount!
Take two similar cars, say one is std and one is at 500bhp, they will need to produce about the same bhp to cruise at 70mhp..... so the fuel consumtion should be about the same.
As soon as you boot it, even a little but, thats a whole different ball game
![Big Grin](https://passionford.com/forum/images/smilies/icon_biggrin.gif)
Alex
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
#58
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Originally Posted by rapidcossie
Originally Posted by Stu @ M Developments
Originally Posted by rapidcossie
Surely no tuner looks for mpg over bhp ![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
In Formula 1, an extra 1mpg is worth some horsepower due to the pit time wasted adding fuel and of course its weight. They tune for the ultimate compromise, and interestingly, they are also the ultimate tuners. You would be shocked how lean they run those motors, its immensely impressive.
![Smokin](https://passionford.com/forum/images/smilies/icon_smokin.gif)
Rally teams also do the same of course... the less fuel you need to finish a stage, the better your power to weight.
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
Mind you, if you lot were tuning Hamiltons F1 car this week he would have come last as he would have wasted an additional 38 seconds coming in for fuel 3 times. "Who care about MPG? If its empty, fill it up"
![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
I mean in this small world of ours where we tune cosworths.
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Pthbbbb](https://passionford.com/forum/images/smilies/smile045.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
#59
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Chill Euan, it was simply an extreme example, but why just look at the small world of Cosworths? Its a bloody boring place as far as tuning goes... there are far more interesting tuning projects if its really tuning your interested in, and F1 is the pinnacle. You can learn things from F1. You will learn sod all from ropey old Cosworths.
If talking flat out power, there arent many cosworths running decent enough management to pull it off as EGT's become uncontrollable on teh YB if you try it, but with a decent managament like Motec or T6 2000, then we can actually run a decent thermal management system and tune for more economy and still keep the power, yes.
What your probably missing, is, your car at a guess, runs about 11.8:1 flat out.
It would make more power at 12.7.
It would also give more MPG.
So why exactly arent you running 12.7:1?
because without some thermal strategies in place, which of course your autronic can in fact deal with i believe, it would melt.
Does that help?
![Big Grin](https://passionford.com/forum/images/smilies/icon_biggrin.gif)
If talking flat out power, there arent many cosworths running decent enough management to pull it off as EGT's become uncontrollable on teh YB if you try it, but with a decent managament like Motec or T6 2000, then we can actually run a decent thermal management system and tune for more economy and still keep the power, yes.
What your probably missing, is, your car at a guess, runs about 11.8:1 flat out.
It would make more power at 12.7.
It would also give more MPG.
So why exactly arent you running 12.7:1?
because without some thermal strategies in place, which of course your autronic can in fact deal with i believe, it would melt.
Does that help?
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I dread to think how much money I spent on fuel when I had the piece of shit on the road.
It would do 150 miles on Ł60 optimax no matter if I drove like miss daisy or drove like I stole it.
You could literally see the fuel coming out the back on tick over - fucking piece of shite.
It would do 150 miles on Ł60 optimax no matter if I drove like miss daisy or drove like I stole it.
You could literally see the fuel coming out the back on tick over - fucking piece of shite.
#61
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Originally Posted by Stu @ M Developments
Chill Euan, it was simply an extreme example, but why just look at the small world of Cosworths? Its a bloody boring place as far as tuning goes... there are far more interesting tuning projects if its really tuning your interested in, and F1 is the pinnacle. You can learn things from F1. You will learn sod all from ropey old Cosworths.
If talking flat out power, there arent many cosworths running decent enough management to pull it off as EGT's become uncontrollable on teh YB if you try it, but with a decent managament like Motec or T6 2000, then we can actually run a decent thermal management system and tune for more economy and still keep the power, yes.
What your probably missing, is, your car at a guess, runs about 11.8:1 flat out.
It would make more power at 12.7.
It would also give more MPG.
So why exactly arent you running 12.7:1?
because without some thermal strategies in place, which of course your autronic can in fact deal with i believe, it would melt.
Does that help?
![Big Grin](https://passionford.com/forum/images/smilies/icon_biggrin.gif)
If talking flat out power, there arent many cosworths running decent enough management to pull it off as EGT's become uncontrollable on teh YB if you try it, but with a decent managament like Motec or T6 2000, then we can actually run a decent thermal management system and tune for more economy and still keep the power, yes.
What your probably missing, is, your car at a guess, runs about 11.8:1 flat out.
It would make more power at 12.7.
It would also give more MPG.
So why exactly arent you running 12.7:1?
because without some thermal strategies in place, which of course your autronic can in fact deal with i believe, it would melt.
Does that help?
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
Sorry Stu
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![Top](https://passionford.com/forum/images/smilies/smile011.gif)
#63
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I understand that the leaner you can run that the power "should "increase, if in fact you can manage the other factors you mention.
How would you do it as it something I have never looked at?
How would you do it as it something I have never looked at?
#64
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lol I keep re-reading what people have written and have to write more
One of the mods we did to my car after looking at the data logs fromthe runway was to fit the twin cooler to try and help ACTs.
when you say thermal stratigies...what do you mean?
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
One of the mods we did to my car after looking at the data logs fromthe runway was to fit the twin cooler to try and help ACTs.
when you say thermal stratigies...what do you mean?
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Originally Posted by rapidcossie
lol I keep re-reading what people have written and have to write more
One of the mods we did to my car after looking at the data logs fromthe runway was to fit the twin cooler to try and help ACTs.
when you say thermal stratigies...what do you mean?
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
One of the mods we did to my car after looking at the data logs fromthe runway was to fit the twin cooler to try and help ACTs.
when you say thermal stratigies...what do you mean?
He mean a thermocouple to measure the EGT and then dynamanically increase the fuel the hotter it gets at a guess..
#66
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Originally Posted by Dannn
Originally Posted by rapidcossie
lol I keep re-reading what people have written and have to write more
One of the mods we did to my car after looking at the data logs fromthe runway was to fit the twin cooler to try and help ACTs.
when you say thermal stratigies...what do you mean?
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
One of the mods we did to my car after looking at the data logs fromthe runway was to fit the twin cooler to try and help ACTs.
when you say thermal stratigies...what do you mean?
He mean a thermocouple to measure the EGT and then dynamanically increase the fuel the hotter it gets at a guess..
wee spot of NOS would do the trick too
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
#67
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Originally Posted by rapidcossie
I understand that the leaner you can run that the power "should "increase, if in fact you can manage the other factors you mention.
How would you do it as it something I have never looked at?
How would you do it as it something I have never looked at?
We will always have accurate AFR monitoring and Det monitoring (although its worth noting that the latter is extremely hard to make reliable out of OEM conditions.)
We will push the motor to peak power, say around 13:1, and then monitor what happens with the spark required. Normally it will decrease as the thermal load increases and will require backing off in a relatively linear fashion as the temperatures generated in the cylinder block increase.
Quite often, and interestingly, the power will sometimes remain the same as the spark lead is dropped back to avoid det. This is due to the fact that our BSFC can actually improve as the temperatures get higher. This is one of teh reasons modern engines all run hotter than they used to do... improved thermal eficiency. You need to retain as much heat as possible as thats one of the energy's we are using to create power. Anyway, thats another story...
![Big Grin](https://passionford.com/forum/images/smilies/icon_biggrin.gif)
So, weve got our 500bhp motor, and she is running 13:1 and making great power with minimal boost (Thus controlling ACT) but getting damned hot at the same time. A strong motor like yours Euan could have EGT's in the 1100+C range before you got out of 4th at 13:1 on a warm day BTW.
So, we need to decide on a thermal EGT limit. I normally choose to start controlling heat at around the 750C mark, thats because we need a lead time to get control as temps can be rising very fast and i would rather not exceed 850 for any long period of time. So lets say we will start to control temps actively at 750C.
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
We now go to our fuel trim with EGT map.
And add a percentage of fuel with EGT. So say.
750 +2%
775 +3%
800 + 4%
850 + 8 %
More fuel, for those who dont know, will cool the combustion and thus the EGT's...
And so on and so forth, and this way, the management will keep the engine running as lean as it can do without running into dangerous thermal conditions that will lead to other problems, such as turbocharger core failure. (Or random hose/soundproofing/wiring meltdown on most cossies
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
The spark with AFR and Spark with EGT
Maps are used in a similar way as descibed earlier to control the ignition as you require different advance with different mixtures and EGT's, so again this stays active.
We also have boost with EGT and a coupe of other interesting maps if all else fails. LOL
I could go on, but your likely all nodding of now and im sure you get the rough idea of how its done.
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#71
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I do know there is a point where the pistons will melt even if there is no det or leaning out etc.
So at this point we could add more fuel or an additive like methanol to cool it down ?
So at this point we could add more fuel or an additive like methanol to cool it down ?
#74
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On my recent mapping and test runs on the rollers Alan monitors EGT on my car as he mentioned that things can get extemeely hot and actually start melting the blades of the turbo etc.
#75
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Originally Posted by JonnyBravo
![Clap](https://passionford.com/forum/images/smilies/9c-clap.gif)
Hell of a lot goes straight over my head but bit by bit I have more of a understanding of how these things are working.
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#76
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Originally Posted by JonnyBravo
![Clap](https://passionford.com/forum/images/smilies/9c-clap.gif)
Hell of a lot goes straight over my head but bit by bit I have more of a understanding of how these things are working.
![Smokin](https://passionford.com/forum/images/smilies/icon_smokin.gif)
#77
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Originally Posted by rapidcossie
I do know there is a point where the pistons will melt even if there is no det or leaning out etc.
So at this point we could add more fuel or an additive like methanol to cool it down ?
So at this point we could add more fuel or an additive like methanol to cool it down ?
Its a similar issue that afflicts people who add bloody octane booster to engines mapped for pump fuel... And this is a fact you may all wish to consider for a while, especially when you think how many do it...
"If your map was actually correct for pump fuel, adding octane booster to it will LOSE YOU POWER"
Same situation. But in reverse.
![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
#78
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Originally Posted by Stu @ M Developments
Originally Posted by rapidcossie
I do know there is a point where the pistons will melt even if there is no det or leaning out etc.
So at this point we could add more fuel or an additive like methanol to cool it down ?
So at this point we could add more fuel or an additive like methanol to cool it down ?
Its a similar issue that afflicts people who add bloody octane booster to engines mapped for pump fuel... And this is a fact you may all wish to consider for a while, especially when you think how many do it...
"If your map was actually correct for pump fuel, adding octane booster to it will LOSE YOU POWER"
Same situation. But in reverse.
![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
would running a higher octane fuel lose you power too?
#80
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yeah thats what I mean.
Alan told me not to run the 102 ultimate PF had on offer at the daddy thrash and I wondered why.
Stu, how many cars utilise this kind of thermal management on the road?
Not many would need it I guess?
Alan told me not to run the 102 ultimate PF had on offer at the daddy thrash and I wondered why.
Stu, how many cars utilise this kind of thermal management on the road?
Not many would need it I guess?