horsepower figures
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horsepower figures
hi, i have just bought an v7 sti jdm. with the car came a printout from a rolling road test that has recently been carried out. the engine power is 335 bhp, wheel power is 209 and torque is 404 Nm, being a total newbie is this normal (the difference from engine and wheel power) and what is the difference between Nm and ft lbs? any help would be grately appreciated. cheers dave.
#5
It can depend which gear its run in
I used to have difficulty at Powerstation getting a reading in 4th - done in 5th the drag was much bigger and I had a power at wheels as ***** as this one is reading..........
I used to have difficulty at Powerstation getting a reading in 4th - done in 5th the drag was much bigger and I had a power at wheels as ***** as this one is reading..........
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#8
I suggest some people at first find out how certain RR's actually work their figures out, before disclaiming and suggesting how much the drag calculation should be...... without even knowing which RR was actually used.
jd5217,
Correct!
daveriley,
Which type of RR was your car run on. I will hazard a guess at a MAHA. If this is the case, ignore the PAW figure. All things being equal, your flywheel figure will be comparable.
Shaun
jd5217,
Correct!
daveriley,
Which type of RR was your car run on. I will hazard a guess at a MAHA. If this is the case, ignore the PAW figure. All things being equal, your flywheel figure will be comparable.
Shaun
#10
lol - That is absolutely fine and believable. You have nothing to worry about.
Go to a Dyno Dynamics RR and you will get around the same flywheel BHP, but slightly more flywheel torque. All in, certainly in the same region.
Go to a Dyno Dynamics RR and you will get around the same flywheel BHP, but slightly more flywheel torque. All in, certainly in the same region.
#12
Wheel power is really the only thing you are interested in and will give indications of how fast/powerful the car is on the road. Fly wheel figures are much better pub talk though.
Dave
Dave
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thanks very much for all your replys, iam going to book it in at rc developments on tuesday to get a proper reading. my aim is 400bhp what do you all think on a jdm, will the engine be capable with standard internals?
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with a JDM, id say yes, a good type UK would have good enough stuff for 400bhp....just ...maybe a few bits and bobs here and there, turbo, injectors etc.
A sti jdm will be nearly 300bhp I think, so after a re-map and de-cat...your looking at 350bhp.........anyone care to correct me, am I thinking right with that?
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I think the only things that have been modified on the car at the minuit are a 3" stainless exaust, dump valve and green panel filter. The fella i bought it of told me it has had a remap but there are no indications of that in all the receipts i've got. Think i'll wait till i've spoke to rc developments and see what they recomend, sure they will point me in the right direction.
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I think the only things that have been modified on the car at the minuit are a 3" stainless exaust, dump valve and green panel filter. The fella i bought it of told me it has had a remap but there are no indications of that in all the receipts i've got. Think i'll wait till i've spoke to rc developments and see what they recomend, sure they will point me in the right direction.
Great platform for modding as they have stronger internals than the UK ones
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good read, i'm alwas wondering on what sort of power my uk 95 has.
i keep hearing about the sti's being better/stronger.
but as i've put sti v4 pistons in my uk engine. should this not help the strengh at all?
living in nottingham. any good riolling roads around there
sorry if it seems like a thread hi jack...
i keep hearing about the sti's being better/stronger.
but as i've put sti v4 pistons in my uk engine. should this not help the strengh at all?
living in nottingham. any good riolling roads around there
sorry if it seems like a thread hi jack...
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#21
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turbo, injectors, fmic with cai, headers, exhaust, simtek ecu, fuel pump.
dyno dynamisc results 420bhp on V Power, 446bhp on 10% methanol.
powerstation results 464bhp & 394lb/ft on 10% methanol.
If you want 400bhp+ give Martyn a bell at Alan Jeffery - Engine Tuner they will put together a package for you.
dyno dynamisc results 420bhp on V Power, 446bhp on 10% methanol.
powerstation results 464bhp & 394lb/ft on 10% methanol.
If you want 400bhp+ give Martyn a bell at Alan Jeffery - Engine Tuner they will put together a package for you.
#23
I have JDM v7sti , stock its 280bph , they come stock with forged pistons and con rods in comparison to the UK model , at present car runs 475bph as a daily drive , our gear box is good for 500bph . I have no problems with that power on stock cams and internals .
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