803's ?????
23-11-2005, 12:04 PM
#1
10K+ Poster!!
Thread Starter
iTrader: (2)
Join Date: May 2004
Location: UK
Posts: 11,383
Likes: 0
Received 0 Likes
on
0 Posts
803's ?????
Had the car upped to stage 3 last week by Harvey ( 
top bloke as always!) Goes like stink.
But................
When speaking to Harvey he advised me not to hold her open at full throttle on motorways for too long etc because its 803's which are fooking pistons left, right & centre. Obviously i'm heeding Harveys warnings as he is my tuner of choice / knows the engine!
But (again)..........
Would it of been a better option to go for a set of light blues / remap?!?!
DISCUSS
top bloke as always!) Goes like stink.But................
When speaking to Harvey he advised me not to hold her open at full throttle on motorways for too long etc because its 803's which are fooking pistons left, right & centre. Obviously i'm heeding Harveys warnings as he is my tuner of choice / knows the engine!
But (again)..........
Would it of been a better option to go for a set of light blues / remap?!?!
DISCUSS
23-11-2005, 12:20 PM
#6
10K+ Poster!!
Thread Starter
iTrader: (2)
Join Date: May 2004
Location: UK
Posts: 11,383
Likes: 0
Received 0 Likes
on
0 Posts
Well he knows the Comp ratio's etc, as he had to skim it / pocket the pistons.
Just wonder why so many people go down the 803 route if there's that much of a problem. In hindsight i would of gone down the blue's route..............But thats how it goes! See what happens after xmas i suppose.
Just wonder why so many people go down the 803 route if there's that much of a problem. In hindsight i would of gone down the blue's route..............But thats how it goes! See what happens after xmas i suppose.
Trending Topics
23-11-2005, 12:45 PM
#9
Banned
Join Date: Jul 2003
Posts: 7,078
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Alloy
What CC are the light blue's??
FYI:
Greys are 503 cc/min (part number 0 280 150 403), described as "competition only", and good for power outputs up to 420 BHP.
23-11-2005, 12:57 PM
#12
Jase,
Harvey is wise to advise you that, and it is good advice for any injector that is maxed out, as there is not enough margin left in the fuelling to use this to help cool the pistons, and you're still running relatively high compression. What this will mean is that the cylinder temps will gradually build up to the point where det sets in and BOOOOOOOOM
.
Obviously you could have the car set up for high speed runs, but this would mean a boost curve that dropped off considerably at high rpm. However, this would require a LIVE map to det check and adjust flat out at Brunters. It can't really be checked on the road (safely), so the advice is good for ANY off the shelf chip.
Greens are 382ish...
Harvey is wise to advise you that, and it is good advice for any injector that is maxed out, as there is not enough margin left in the fuelling to use this to help cool the pistons, and you're still running relatively high compression. What this will mean is that the cylinder temps will gradually build up to the point where det sets in and BOOOOOOOOM
.Obviously you could have the car set up for high speed runs, but this would mean a boost curve that dropped off considerably at high rpm. However, this would require a LIVE map to det check and adjust flat out at Brunters. It can't really be checked on the road (safely), so the advice is good for ANY off the shelf chip.
Greens are 382ish...
23-11-2005, 01:06 PM
#13
10K+ Poster!!
Thread Starter
iTrader: (2)
Join Date: May 2004
Location: UK
Posts: 11,383
Likes: 0
Received 0 Likes
on
0 Posts
I suppose what i should really be asking is should i be keeping her below the 100 mark then, or is it ok on 2/4 or 3/4 throttle. 
Better be safe than sorry, and i want to learn!! Before i get ribbed!!
Thinking about track days, the ring etc really.
Better be safe than sorry, and i want to learn!! Before i get ribbed!!
Thinking about track days, the ring etc really.
).
23-11-2005, 01:11 PM
#15
Originally Posted by Franco
I suppose what i should really be asking is should i be keeping her below the 100 mark then, or is it ok on 2/4 or 3/4 throttle.
Better be safe than sorry, and i want to learn!! Before i get ribbed!!
Thinking about track days, the ring etc really.
Better be safe than sorry, and i want to learn!! Before i get ribbed!!
Thinking about track days, the ring etc really.
23-11-2005, 01:11 PM
#16
PassionFord Post Whore!!
Nailing your car is fine, it's holding it flat out which is the issue here.
If it's gonna melt, it will do so on a top speed run for the reasons Mike has given ( (C) H. Gibbs)
Drive it normally, nail it around all you like but don't hold it a full throttle for long periods of time, thats all
If it's gonna melt, it will do so on a top speed run for the reasons Mike has given ( (C) H. Gibbs)
Drive it normally, nail it around all you like but don't hold it a full throttle for long periods of time, thats all
23-11-2005, 01:25 PM
#18
10K+ Poster!!
Thread Starter
iTrader: (2)
Join Date: May 2004
Location: UK
Posts: 11,383
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by chip-3door
Ps
if you have a "group a" head gasket, your pistons should be fine whatever happens
if you have a "group a" head gasket, your pistons should be fine whatever happens
23-11-2005, 01:28 PM
#20
Originally Posted by Franco
Originally Posted by chip-3door
Ps
if you have a "group a" head gasket, your pistons should be fine whatever happens
if you have a "group a" head gasket, your pistons should be fine whatever happens
. However, I have found that it is a gradual process and the YB611 lasts 8-12k depending on use (read abuse).
23-11-2005, 02:32 PM
#23
I've found that life I needed.. It's HERE!!
Join Date: Jul 2004
Location: Belfast
Posts: 1,067
Likes: 0
Received 0 Likes
on
0 Posts
Thank's Doug.
So, can you overfuel if you use injector's that are too large for your application?
Sorry for all the question's, just trying to learn more.
So, can you overfuel if you use injector's that are too large for your application?
Sorry for all the question's, just trying to learn more.
23-11-2005, 02:34 PM
#25
Sorry if that was cryptic, yeah i meant that if you start leaning out the headgasket will go before the pistons.
It was 50% true and 50% just me having a pop at fibrous gaskets for no justified reason simply cause thats the sort of arsehole i am
Ie they are bad, but not as bad as i make out
It was 50% true and 50% just me having a pop at fibrous gaskets for no justified reason simply cause thats the sort of arsehole i am
Ie they are bad, but not as bad as i make out
23-11-2005, 02:37 PM
#27
Originally Posted by Franco
Think thats why you'd need it live mapped mate................................Don't quote me though!
Well the problem you have there, is finding an ECU that would allow you to lower the boost over time spent at full throttle.
Its not really something you can map around when you are right on the limit of flow for the injectors.
Only ways to make it safe are:
dont hold it flat out
change the injectors and remap
lower the boost at the top end
Harvey has set it how he thinks it will suit YOU, if it was someone who he thought would ignore him and sit flat out, he would have tailed the boost off and lost that person power in the interests of reliability probably.
23-11-2005, 02:43 PM
#28
10K+ Poster!!
Thread Starter
iTrader: (2)
Join Date: May 2004
Location: UK
Posts: 11,383
Likes: 0
Received 0 Likes
on
0 Posts
Don't get me wrong chip i do listen, i always try to hold it on 1/2 throttle while over say a ton.
Anything below that, she gets a beating!!
Unlike some, i need to preserve this engine. So have to ask stupid questions etc!!
Anything below that, she gets a beating!!
Unlike some, i need to preserve this engine. So have to ask stupid questions etc!!
23-11-2005, 02:45 PM
#29
Originally Posted by Franco
Don't get me wrong chip i do listen, i always try to hold it on 1/2 throttle while over say a ton.
Anything below that, she gets a beating!!
Unlike some, i need to preserve this engine. So have to ask stupid questions etc!!
Anything below that, she gets a beating!!
Unlike some, i need to preserve this engine. So have to ask stupid questions etc!!
Seriously though, you sound like you will be fine cause you actually not only listen to what you are told, you then go and learn about the reasons why, tuners dream come true
23-11-2005, 02:48 PM
#30
10K+ Poster!!
Thread Starter
iTrader: (2)
Join Date: May 2004
Location: UK
Posts: 11,383
Likes: 0
Received 0 Likes
on
0 Posts
Still wonder if i would have been better to just go light blues & remap.
But i suppose i can look into this after the new year etc. Want to sort the transmission next & diffs (3.9)
But i suppose i can look into this after the new year etc. Want to sort the transmission next & diffs (3.9)
23-11-2005, 02:48 PM
#31
Originally Posted by Franco
Don't get me wrong chip i do listen, i always try to hold it on 1/2 throttle while over say a ton.
).
23-11-2005, 02:49 PM
#32
Originally Posted by chip-3door
sounds like you will be fine cause you actually not only listen to what you are told, you then go and learn about the reasons why, tuners dream come true
Its all to do with the Induction Stroke timebase.
Essay Chip, or shall i do it his time?
23-11-2005, 02:51 PM
#33
10K+ Poster!!
Thread Starter
iTrader: (2)
Join Date: May 2004
Location: UK
Posts: 11,383
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Stu @ M Developments
Originally Posted by chip-3door
sounds like you will be fine cause you actually not only listen to what you are told, you then go and learn about the reasons why, tuners dream come true
Its all to do with the Induction Stroke timebase.
Essay Chip, or shall i do it his time?
STOP WITH THE FOREPLAY MULLET
23-11-2005, 02:56 PM
#34
10K+ Poster!!
Thread Starter
iTrader: (2)
Join Date: May 2004
Location: UK
Posts: 11,383
Likes: 0
Received 0 Likes
on
0 Posts
OK.........
Say i'm at the ring, coming onto the long straight, red mist, wanna give it some top end(humour me BTW FFS!!)..........................
Do i have to worry about me fooking a piston halfway down.
Signed
STOOPID
Say i'm at the ring, coming onto the long straight, red mist, wanna give it some top end(humour me BTW FFS!!)..........................
Do i have to worry about me fooking a piston halfway down.
Signed
STOOPID
23-11-2005, 02:58 PM
#35
Originally Posted by Stu @ M Developments
Originally Posted by chip-3door
sounds like you will be fine cause you actually not only listen to what you are told, you then go and learn about the reasons why, tuners dream come true
Its all to do with the Induction Stroke timebase.
Essay Chip, or shall i do it his time?
I'll do one...........
23-11-2005, 02:59 PM
#36
Originally Posted by Franco
OK.........
Say i'm at the ring, coming onto the long straight, red mist, wanna give it some top end(humour me BTW FFS!!)..........................
Do i have to worry about me fooking a piston halfway down.
Signed
STOOPID
Say i'm at the ring, coming onto the long straight, red mist, wanna give it some top end(humour me BTW FFS!!)..........................
Do i have to worry about me fooking a piston halfway down.
Signed
STOOPID
23-11-2005, 03:03 PM
#40
10K+ Poster!!
Thread Starter
iTrader: (2)
Join Date: May 2004
Location: UK
Posts: 11,383
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Gregs
Ok what about on way to show, 90ish for half hour then scoobi comes past giving it the biggun, ok to floor it to 140+ ?