power guesstimation???
18 September 2002, 12:58 AM
#1
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taking a trip to well lane in the near future and was wondering what sort of power my car will be pushing out, anyone like to take a guess???
my95 wrx(56k)jap 260ps model
scoobysport de-cat down pipe(lagged)
full kakimoto racing system
racing dawes at 1.1bar
sti 6 intercooler(with water spray)
hks vta
BMC carbon fibre air box (same as k&n but enclosed in a carbon shield drawing cold air through the inner wing)
ngk platinum plugs
also using mobil 1 motorsport
running optimax + 2ron octane booster at all times.
Anything else I should have before putting it on the rollers???
my95 wrx(56k)jap 260ps model
scoobysport de-cat down pipe(lagged)
full kakimoto racing system
racing dawes at 1.1bar
sti 6 intercooler(with water spray)
hks vta
BMC carbon fibre air box (same as k&n but enclosed in a carbon shield drawing cold air through the inner wing)
ngk platinum plugs
also using mobil 1 motorsport
running optimax + 2ron octane booster at all times.
Anything else I should have before putting it on the rollers???
18 September 2002, 12:25 PM
#4
Looks good 
. But if it's not easy then it's not for me 
. I'll have to stick to my 'ickle one 'till i can have the front mount.
Tony.
P.s thinking about your mods i'd say you could get anywhere between 270-290 bhp depending on the conditions which rolling road etc.
. But if it's not easy then it's not for me . I'll have to stick to my 'ickle one 'till i can have the front mount.Tony.
P.s thinking about your mods i'd say you could get anywhere between 270-290 bhp depending on the conditions which rolling road etc.
18 September 2002, 12:50 PM
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Thats what i am hoping for
It was a bloody nightmare to fit, you have to use the under pan from the later cars too.
The pipe from the y peace under the intercooler doesn't match up either so I had to make one up myself out of a length of silicone tube and an elbow.
Also had to add a place for the dump valve to fit cos the one from the sti 6 was being fouled by the manifold.
Had to make a blanking plate to cover the hole in the intercooler that the original dump valve sat in.
It goes on and on!!
Worth it though
It was a bloody nightmare to fit, you have to use the under pan from the later cars too.
The pipe from the y peace under the intercooler doesn't match up either so I had to make one up myself out of a length of silicone tube and an elbow.
Also had to add a place for the dump valve to fit cos the one from the sti 6 was being fouled by the manifold.
Had to make a blanking plate to cover the hole in the intercooler that the original dump valve sat in.
It goes on and on!!
Worth it though
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18 September 2002, 02:43 PM
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JWRacing
it is a universal air box so there is some modifications to be made before it will fit properly
[Edited by jonny gav - 9/18/2002 2:46:31 PM]
it is a universal air box so there is some modifications to be made before it will fit properly
[Edited by jonny gav - 9/18/2002 2:46:31 PM]
18 September 2002, 08:53 PM
#9
Despite my previous posts on your threads....
Recently at a RR session I attended, 94-96 UK cars with a remapped factory ECU were pulling 270hp using 16psi (about 1.1bar). That was with standard I/C and downpipe, ITG panel filter and SUL fuel.
SO I would guess 280 for your set up, given the downpipe, inlet and Well Lanes optimistic readings.
I/C probably isn't a huge thing on a RR if the power runs are very short, the "remapped" ecu in the above case gave about 15ftlbs of torque of the standard ecu with same boost (dawes).
Unfortunately the fuelling is the main problem, with standard fuel pressure, your (380cc/min) injectors will max out at about 285hp-295hp (depending on AFR), and even then they won't be operating properly. Which is a shame as the Turbo is good for much more.
To progress, you really need to be looking at bigger injectors and/or increased fuel pressure. Fuel pressure is easy, just use an adjustable fuel pressure reglator, but injectors are a pain. I can get cheap Phase 2 style, but they won't fit (need to butcher matching rails). Scoobymania are asking something like £520 inc vat for 550cc injectors, if they can get them at all. 440cc come on the STI4, and will fit straight in, but you then need to look at altering the ECU to suit. 440s with 1bar more fuel pressure probably okay for 350hp.
Paul
Recently at a RR session I attended, 94-96 UK cars with a remapped factory ECU were pulling 270hp using 16psi (about 1.1bar). That was with standard I/C and downpipe, ITG panel filter and SUL fuel.
SO I would guess 280 for your set up, given the downpipe, inlet and Well Lanes optimistic readings.
I/C probably isn't a huge thing on a RR if the power runs are very short, the "remapped" ecu in the above case gave about 15ftlbs of torque of the standard ecu with same boost (dawes).
Unfortunately the fuelling is the main problem, with standard fuel pressure, your (380cc/min) injectors will max out at about 285hp-295hp (depending on AFR), and even then they won't be operating properly. Which is a shame as the Turbo is good for much more.
To progress, you really need to be looking at bigger injectors and/or increased fuel pressure. Fuel pressure is easy, just use an adjustable fuel pressure reglator, but injectors are a pain. I can get cheap Phase 2 style, but they won't fit (need to butcher matching rails). Scoobymania are asking something like £520 inc vat for 550cc injectors, if they can get them at all. 440cc come on the STI4, and will fit straight in, but you then need to look at altering the ECU to suit. 440s with 1bar more fuel pressure probably okay for 350hp.
Paul
18 September 2002, 09:47 PM
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Thanks Paul
Didn’t think you could re-map the standard ECU on the early wrx,s???
Apart from a super chip (to many horror stories for me)
Didn’t think you could re-map the standard ECU on the early wrx,s???
Apart from a super chip (to many horror stories for me)
18 September 2002, 10:23 PM
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jonny gav
my 'old uk bone' made 265 at powerstation recently...with just a full de-cat and dawes at 15psi.....
so yours should slaughter that figure!!
good luck mate...its an agonising few moments,while they run it up to speed!!
my 'old uk bone' made 265 at powerstation recently...with just a full de-cat and dawes at 15psi.....
so yours should slaughter that figure!!
good luck mate...its an agonising few moments,while they run it up to speed!!
19 September 2002, 01:25 PM
#13
For a good idea of the differences the remap made over a standard UK ecu check out chris palmers dyno graphs
www.saxonfields.freeserve.co.uk
There is one that shows the PPP + Dawes vs UK + Dawes
Both with same boost, except the PPP based ecu show about 15ftlbs extra all the way to about 5500 rpm.
We used the PPP map info for the remapping. I have found you can't go any further ignition advance wise, even on my car with a SS downpipe, this may be due to the fact it was designed for 98RON petrol, which back in '96 was of better quality than even Optimax now (older petrol has Similar RON, but 89 vs 88 MON).
On various cars I have seen detonation above 4500 rpm, the ECU does pull it back, but you need to drive it a while to get it to do it before you put it on the rollers (rollers are bad news for det).
The good thing i have found with altering the standard ECU, is you don't need a dawes device, fuel cut defender and speed de-limiter, plus you can cater for non standard MAP sensors and injectors.
Paul
www.saxonfields.freeserve.co.uk
There is one that shows the PPP + Dawes vs UK + Dawes
Both with same boost, except the PPP based ecu show about 15ftlbs extra all the way to about 5500 rpm.
We used the PPP map info for the remapping. I have found you can't go any further ignition advance wise, even on my car with a SS downpipe, this may be due to the fact it was designed for 98RON petrol, which back in '96 was of better quality than even Optimax now (older petrol has Similar RON, but 89 vs 88 MON).
On various cars I have seen detonation above 4500 rpm, the ECU does pull it back, but you need to drive it a while to get it to do it before you put it on the rollers (rollers are bad news for det).
The good thing i have found with altering the standard ECU, is you don't need a dawes device, fuel cut defender and speed de-limiter, plus you can cater for non standard MAP sensors and injectors.
Paul
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