Stock R33

[Bo0oSt]

Hi all,

Any ideas of what kind of rwkw a stock R33 with a catback would make? Just put on a JJR front pipe and will be goin for a dyno run this weekend so wanna just get an idea of what kind of increase could be attributed to the front pipe? Im thinking maybe 10rwkw?

Cheers

Daniel

[nuclear_skyline]

Depends on how good your engine is... When I was running stock everything and upped the boost to 10psi I got 160rwkw....

Your mods probably put you somewhere in that bracket...

[R31Nismoid]

145-160 i'd say is the ball park it'll fall into

[Bo0oSt]

Thats what i figured it would be around...so to make around 200rwkw would i just need about 12 pounds and a fmic? ive had a search and this seams to be the common consensus

[nuclear_skyline]

so to make around 200rwkw would i just need about 12 pounds and a fmic?

Maybe... But I think you'll need a little bit more then that... the stock ecu will stop any big power coming out of the engine, no matter what you bolt on... A few guys have managed it, but the majority of us hit R&R before any real power is made...

Edited April 24, 2008 by nuclear_skyline

[SiR_RB]

add to ur car a 3" hi flow cat, front mount, 12psi and a SAFC or ecu remap etc, hi flow air filter and you would be close to it

[The Mafia]

depends on how happy the dyno is

I managed 140rwkw on a real dyno without fudged figures with a full exhaust and front mount at 10psi

Then with a Powerfc and 12psi, I managed 209rwkw on the same dyno.

I wouldn't waste your time with a SAFC, get a powerfc, much better to tune.

[R31Nismoid]

^ as above.

FMIC and boost wont do it.

Tune is required, full exhaust (dump included) etc

[R31Nismoid]

depends on how happy the dyno is

I managed 140rwkw on a real dyno without fudged figures with a full exhaust and front mount at 10psi

Then with a Powerfc and 12psi, I managed 209rwkw on the same dyno.

I wouldn't waste your time with a SAFC, get a powerfc, much better to tune.

lol so your saying your 209 was a dodgy run?

Cause you dont get 69rwkw from 2psi and a tune

[Krishy]

if you have a turbo back full exhaust system with a highflow cat, fmic and 10psi i would say expect somewhere from 160-175rwkw.....I have a full exhaust, pod, coilpacks and one freaky motor and made 180rwkw on 7psi apparently....still i dont believe that figure but i guess another dyno run should help

[Granthem]

My car runs 10psi and a cat back exhaust, no shielded pod and it pulled 161rwkw.

However, it is a R34GTT which of course means its up 20 odd kw at the engine from factory.

my car at this rwkw runs 97mph, which i think is an accurate speed considering my power.

Power always read different, go post a ET with a trap speed and work out your power back from there

[Bo0oSt]

ok so now i have a question about the cat... when i got it done the guy said i had a stock cat which could be hiflowed...ive got a couple of mates without a cat at all...so the question is will the exhuast run better with a:

a) A Highflow cat like an xforce which i can get for 160 off the forums

b) Have my existing cat enlarged for 140

c) Have by cat knocked out and just have a straight exhaust

[johnbarry88]

a) inferior product might do the job how well unknown

b) better idea

c) dont waste your time its illegal

d) buy a decent cat

[WOG BOY]

well i have a stock everything....added a full turbo back exhuast system....3" split dump/front pipe, x force hi flo cat, and 3" catback with 5" cannon output....but yeah havent noticed any difference to mine...altho my car wont boost over 5 psi no matter what i do.....so i think i have a acutator leak or something....anyone any ideas?

as for ur cat ideas......the x force 'hi flo' cats arent exactly hi flowing....they have the same 'biscuit' inside that is jus bigger than standard...a high flo cat is set up to have more 'open' biscuit where by air can travel better thru it.....i found this out after i bought and installed the xforce hi flo cat....

also dont remove ur cat or gut ur cat....its illegal and will result in a $10000+ fine if ur caught.....

overall its up to u.....but yeah a proper hi flow cat is around the 350-400 mark!

[Krishy]

just get a high flow cat and that should do the job....but still i know of people that still have stock cats....and its all good

[msnismo]

I managed 178rwkw on a stock ecu (mines chip'd though) 10- 11psi - on a mainline dyno, not dynodynamics - would of got more but my coils crapped out when we tried turning the boost up to 12psi

Only mods at the time were bleed valve, FMIC and exhaust that was on it from Japan which I later found out the cat was stuffed anyways

[Bo0oSt]

oks o its booked in to be highflowed from what i understand its the end of the cats basically being enlarged

[H@ME]

sorry to hijack this this thread but i also would like to know

i am running 10psi, stock turbo and computer, with hybrid fmic and a 3" cat back exaust system, apexi pod.