8 injectors...now this could be the dumest question ever
#1
Advanced PassionFord User
Thread Starter
Join Date: Apr 2004
Location: Kent
Posts: 2,115
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.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)
![Red Faced](https://passionford.com/forum/images/smilies/icon_redface.gif)
Could you,by using a WRC inlet,run 8 greens at the same time..ie split into the 4 original injector loom and power up all 8 at the same time?
Is that at all mapable on a L6/L8/P8 without the 8 injector software?....Not worried about emmissions.......in theory this is possible isnt it?????Surely an expert could do this???????
#2
Too many posts.. I need a life!!
Join Date: May 2004
Location: On your IPC$
Posts: 695
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Originally Posted by Ima-Racing500
![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)
![Red Faced](https://passionford.com/forum/images/smilies/icon_redface.gif)
Could you,by using a WRC inlet,run 8 greens at the same time..ie split into the 4 original injector loom and power up all 8 at the same time?
Is that at all mapable on a L6/L8/P8 without the 8 injector software?....Not worried about emmissions.......in theory this is possible isnt it?????Surely an expert could do this???????
#4
PassionFord Post Whore!!
Join Date: May 2003
Location: Isle of Wight
Posts: 4,723
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
I don't think you'd be able to Phil cos of the voltage drop...
You'd be robbing the other injectors of a bit of their power
Thats my understanding on it anyway
You'd be robbing the other injectors of a bit of their power
Thats my understanding on it anyway
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
#6
Advanced PassionFord User
Thread Starter
Join Date: Apr 2004
Location: Kent
Posts: 2,115
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Because of emmisions and lack of mapping knowledge in the old days
I mean look at Stu...750cc injectors at stupidily low CO
So why cant you use twin 382cc injectors per inlet in the same way?
![Raz](https://passionford.com/forum/images/smilies/tongue.gif)
![Clap](https://passionford.com/forum/images/smilies/9c-clap.gif)
Trending Topics
#9
Advanced PassionFord User
Thread Starter
Join Date: Apr 2004
Location: Kent
Posts: 2,115
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Thats me Bodge Motorsport...you wait till i show pics of my breather system
The thing is..i experiment and aint afraid too.....i love what i do...plus can get free advice from most of my customers
Ok i never listen to em
But how many people can say they built a 400 plus BHP engine....a 450plus BHP engine....a 350bhp engine?...All DIY........off the shelf chips....tweaked by me...i am proud..as i have NO mechanical or electrical experience....i came from the gutter
Had problems YES....but so do professionals
Now back on topic why is this not acheivable?????Please lets not have the "i pay a tuner brigade" lets have pros answer me!
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
The thing is..i experiment and aint afraid too.....i love what i do...plus can get free advice from most of my customers
![Raz](https://passionford.com/forum/images/smilies/tongue.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
But how many people can say they built a 400 plus BHP engine....a 450plus BHP engine....a 350bhp engine?...All DIY........off the shelf chips....tweaked by me...i am proud..as i have NO mechanical or electrical experience....i came from the gutter
![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)
Had problems YES....but so do professionals
![Pthbbbb](https://passionford.com/forum/images/smilies/smile045.gif)
Now back on topic why is this not acheivable?????Please lets not have the "i pay a tuner brigade" lets have pros answer me!
#10
20K+ Super Poster.
![Default](https://passionford.com/forum/images/icons/icon1.gif)
simple answer... yes
i dunno about cossie ECUs, but most stuff like EECIV only have 2 injector drivers anway and these are spliced together in the loom. no reason why you couldnt add more, as long as you dont overload the circuit and fry the injector driver (bit like if you try n run high impedence injectors on a cossie ECU)
as for voltage drops wes, the injectors receiving a CONSTANT live and are opened/closed with a switched earth, so getting the correct FEED to them isn't a problem
i dunno about cossie ECUs, but most stuff like EECIV only have 2 injector drivers anway and these are spliced together in the loom. no reason why you couldnt add more, as long as you dont overload the circuit and fry the injector driver (bit like if you try n run high impedence injectors on a cossie ECU)
as for voltage drops wes, the injectors receiving a CONSTANT live and are opened/closed with a switched earth, so getting the correct FEED to them isn't a problem
#11
Advanced PassionFord User
Thread Starter
Join Date: Apr 2004
Location: Kent
Posts: 2,115
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
So....you could use say 8 greens and half duty cycle on them and get perfect emmissions etc....but for the injectors full potensial say 600bhp just run them higher...and with the closed lambda thing emmisions good?
Surely i have now made 8 injector software redundant?
Really interested in Stus honest answer to this!
Surely i have now made 8 injector software redundant?
Really interested in Stus honest answer to this!
#12
20K+ Super Poster.
![Default](https://passionford.com/forum/images/icons/icon1.gif)
no phil, you have peak and hold injectors (low impedence) so this is certainly not the case. it would deffo need a serious looking over by someone like stu (who has done this good idling stuff) to get the fooker to even idle let alone idle legally
you have also just lost 50% resolution over your fueling... that'll be fun![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
and you're trying to make a component do something its not supposed to do which presumably cant be good.
you could probably get it to work, but itd costa lot of money (becasue you'd have to pay someone like simon/stu to do it as you dont possess those skills yourself) and be worse than the cheaper option... which is a full mapable aftermarket plug-in ECU thats in great demand and you got sent for a trial![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
phil, this question could have been answered simply by looking at either the ECU pinouts or a wiring diagram and going "oh yeah, thats how injectors work"
you have also just lost 50% resolution over your fueling... that'll be fun
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
and you're trying to make a component do something its not supposed to do which presumably cant be good.
you could probably get it to work, but itd costa lot of money (becasue you'd have to pay someone like simon/stu to do it as you dont possess those skills yourself) and be worse than the cheaper option... which is a full mapable aftermarket plug-in ECU thats in great demand and you got sent for a trial
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
phil, this question could have been answered simply by looking at either the ECU pinouts or a wiring diagram and going "oh yeah, thats how injectors work"
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
#13
PassionFord Post Troll
Join Date: Apr 2004
Location: Kent
Posts: 2,865
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Jim is 100% correct.
Injectors have a permenant 12v live and are operated by the ECU earthing them out.
Low impedence injectors require a lot of voltage to operate them so by doubling up you will be doubling the voltage the ECU has to ground.
Forget about the fact you will half the open duration, you will still be doubling the power the drivers have to put to earth.
Also the idea if 8 injectors is so that at low revs only 1 set operate, this helps prevent fuel drop out in the slow moving intake air.
Injectors have a permenant 12v live and are operated by the ECU earthing them out.
Low impedence injectors require a lot of voltage to operate them so by doubling up you will be doubling the voltage the ECU has to ground.
Forget about the fact you will half the open duration, you will still be doubling the power the drivers have to put to earth.
Also the idea if 8 injectors is so that at low revs only 1 set operate, this helps prevent fuel drop out in the slow moving intake air.
#14
Advanced PassionFord User
Thread Starter
Join Date: Apr 2004
Location: Kent
Posts: 2,115
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
As said above i am NOT a mechanic or an ELECTRICIAN.....Galbally you on the other hand are obviously a geek
BUT carry on as you have wound me up to a point of no return already
To everyone else..this is not something i wish to do...i am just thinkin that it must be possible for a competant mapper...as said the object was 450bhp hence why a choose L8 and NOT S8 as its much cheaper!!!!!...If i wanted 8 injectors i could easily get my L8 converted including chip for the same price as S8...and that is now what i would do as S8 has no benefits for my engine.
That you for understanding...obviously some got jealous cause i got offered a free trial
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Sad](https://passionford.com/forum/images/smilies/icon_sad.gif)
To everyone else..this is not something i wish to do...i am just thinkin that it must be possible for a competant mapper...as said the object was 450bhp hence why a choose L8 and NOT S8 as its much cheaper!!!!!...If i wanted 8 injectors i could easily get my L8 converted including chip for the same price as S8...and that is now what i would do as S8 has no benefits for my engine.
That you for understanding...obviously some got jealous cause i got offered a free trial
![Rolling Eyes](https://passionford.com/forum/images/smilies/icon_rolleyes.gif)
#16
PassionFord Post Troll
Join Date: Apr 2004
Location: Kent
Posts: 2,865
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Originally Posted by Ima-Racing500
.....you on the other hand are obviously a geek
BUT carry on as you have wound me up to a point of no return already
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
![Sad](https://passionford.com/forum/images/smilies/icon_sad.gif)
If you took 2 mins to search the internet and read up on how injectors work you would have learnt the answer to your own question.
![Pthbbbb](https://passionford.com/forum/images/smilies/smile045.gif)
#18
20K+ Super Poster.
![Default](https://passionford.com/forum/images/icons/icon1.gif)
As said above i am NOT a mechanic or an ELECTRICIAN.....you on the other hand are obviously a geek BUT carry on as you have wound me up to a point of no return already
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
you asked a question, i answered it...
just becasue the answer made you look a bit silly dont get all upset
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
however for a laugh i'm just gonna put up a few choice quotes that i found somewhat ammusing...
If i wanted 8 injectors i could easily get my L8 converted including chip for the same price as S8
S8 has no benefits for my engine
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
#20
Advanced PassionFord User
Thread Starter
Join Date: Apr 2004
Location: Kent
Posts: 2,115
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
S8 = Ł500 plus VAT plus proper mapping session from a pro @ Ł350 ish
L8 already got Ł500 plus VAT to convert including chip,needs setup/check @ Ł100
So S8 is Ł250 more......what does it do that i WOULD notice...i dont want launch control/anti-lag/the ability to fiddle with it myself...so what am i getting that i WANT for the xtra Ł250
Plus L8 is well proven
So Jim you really are a grade a cock that only dreams of proper power and no ability to actually build an engine but with an extraordinary talent to fuck up what its already got.
Thanks for all you advice but i think i will pass and favour the 90 year old across the street who once appeared in drag at the hazlit theatre
L8 already got Ł500 plus VAT to convert including chip,needs setup/check @ Ł100
So S8 is Ł250 more......what does it do that i WOULD notice...i dont want launch control/anti-lag/the ability to fiddle with it myself...so what am i getting that i WANT for the xtra Ł250
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
So Jim you really are a grade a cock that only dreams of proper power and no ability to actually build an engine but with an extraordinary talent to fuck up what its already got.
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
![Confused](https://passionford.com/forum/images/smilies/icon_confused.gif)
Thanks for all you advice but i think i will pass and favour the 90 year old across the street who once appeared in drag at the hazlit theatre
![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)
#21
20K+ Super Poster.
![Default](https://passionford.com/forum/images/icons/icon1.gif)
S8 = Ł500 plus VAT plus proper mapping session from a pro @ Ł350 ish
L8 already got Ł500 plus VAT to convert including chip,needs setup/check @ Ł100
L8 already got Ł500 plus VAT to convert including chip,needs setup/check @ Ł100
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
#26
I've found that life I needed.. It's HERE!!
Join Date: May 2003
Location: Out in the sticks
Posts: 1,115
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Originally Posted by Ima-Racing500
Thats me Bodge Motorsport...you wait till i show pics of my breather system
![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)
#27
20K+ Super Poster.
![Default](https://passionford.com/forum/images/icons/icon1.gif)
ok phil lets follow this through then...
what do you get for your 350quid (well, actually more like 500 but hey) mapping session
and what do you get for your OFF THE SHELF collins chip and setup?
also, you engine is a complete one off and nobody has ever put those components together in an engine before what off the shelf chip are you actually buying for it...![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
unless its a custom chip by some clever bods at colins that theyve estimated the fueling/spark requirements based on their many years of experience at this sort of thing
which would then ofcourse need checking afterwards and then if it needs adjustments (which ofcourse it probably will) you'd need to get done again, and again and again
which works out the same price![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
by my maths, if the ECU and 8inj addon are less than 500quid you will save money
but you will only save that money over the s8
so say s8 is 500quid
and ecu + addon is 200quid
then youve saved 300quid, result
you are NOT however saving money in the MAPPING... if you think you are then you ARE cutting corners... this is the fundemental thing you're missing... you're compromising yourself for the sake of a few quid... infact youre compromising yourself even more as i'm 99% sure youre not gonna get it done properly and youre just gonna buy a chip off the shelf like the last one which was NOT designed for your spec at all
what do you get for your 350quid (well, actually more like 500 but hey) mapping session
and what do you get for your OFF THE SHELF collins chip and setup?
also, you engine is a complete one off and nobody has ever put those components together in an engine before what off the shelf chip are you actually buying for it...
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
unless its a custom chip by some clever bods at colins that theyve estimated the fueling/spark requirements based on their many years of experience at this sort of thing
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
which works out the same price
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
by my maths, if the ECU and 8inj addon are less than 500quid you will save money
![Top](https://passionford.com/forum/images/smilies/smile011.gif)
so say s8 is 500quid
and ecu + addon is 200quid
then youve saved 300quid, result
you are NOT however saving money in the MAPPING... if you think you are then you ARE cutting corners... this is the fundemental thing you're missing... you're compromising yourself for the sake of a few quid... infact youre compromising yourself even more as i'm 99% sure youre not gonna get it done properly and youre just gonna buy a chip off the shelf like the last one which was NOT designed for your spec at all
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
#29
Advanced PassionFord User
Thread Starter
Join Date: Apr 2004
Location: Kent
Posts: 2,115
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
![Clap](https://passionford.com/forum/images/smilies/9c-clap.gif)
![Clap](https://passionford.com/forum/images/smilies/9c-clap.gif)
![Clap](https://passionford.com/forum/images/smilies/9c-clap.gif)
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
![Wall](https://passionford.com/forum/images/smilies/wall.gif)
Thanks Jim..thanks alot.....your the best.
![Clap](https://passionford.com/forum/images/smilies/9c-clap.gif)
#34
Advanced PassionFord User
Thread Starter
Join Date: Apr 2004
Location: Kent
Posts: 2,115
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Doug....Jim is a pure diamond geezer
I dont know how he does it under the circumstances...thats what makes him more special.
Ah well i just have to make do with this shit L8 now,damn i am gutted i didnt realise L8 was so inferior
![Clap](https://passionford.com/forum/images/smilies/9c-clap.gif)
![Clap](https://passionford.com/forum/images/smilies/9c-clap.gif)
![Clap](https://passionford.com/forum/images/smilies/9c-clap.gif)
Ah well i just have to make do with this shit L8 now,damn i am gutted i didnt realise L8 was so inferior
![Wall](https://passionford.com/forum/images/smilies/wall.gif)
![Wall](https://passionford.com/forum/images/smilies/wall.gif)
#36
Advanced PassionFord User
Thread Starter
Join Date: Apr 2004
Location: Kent
Posts: 2,115
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Ok sorry Jim....your call i wont say another word Re you...but please dont stop your wonderful advice...you know i could have done with a dad like you....then perhaps i wouldnt be this dumb shit bodger
![Wall](https://passionford.com/forum/images/smilies/wall.gif)
#37
PassionFord Post Whore!!
Join Date: Sep 2003
Location: Macclesfield - you'll never leave....!
Posts: 4,519
Likes: 0
Received 1 Like
on
1 Post
![Default](https://passionford.com/forum/images/icons/icon1.gif)
but- surely as run 8 injecotrs in pairs, why not just run 4 at twice the flow rate - less to go wrong, less wiring etc? or are thinking .... ive got 8 greens lying around for free so lets make use of them..?
#38
Professional Waffler
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Originally Posted by Ima-Racing500
But how many people can say they built a 400 plus BHP engine....a 450plus BHP engine....a 350bhp engine?...All DIY........off the shelf chips!
Every fooker can SAY they have.
![Rolling Eyes](https://passionford.com/forum/images/smilies/icon_rolleyes.gif)