Is this good power or not?

[Nrage33]

Hi guys,

Just added an s-afc and a HKS EVC 3 to the car, and it dyno'ed at 255hp with 200rwkw at 13psi (did 270hp at 15psi)

my mods include:

hi-flowed T03 with T04 compressor

full turbo back exhaust

s-afc

EVC 3 boost controller

stock intercooler

I'm wondering whether or not this is the power it SHOULD be making or whether it is lacking anything.

And what would be a good quartermile time for a car like this

All input will be greatly appreciated

Zak

the car is a 1995 R33 Gts-t

[Guest INASNT]

Thats alright power but your stock intercooler must be dying with a highflowed turbo. Y havent u changed the cooler already?

[Steve]

Dude, I am with INASNT - you've got an upgraded turbo, but pushing numbers that are below the top potential of even a stock turbo. Get a decent cooler, will make a huge difference.

[BOOSTD]

Mine made an extra 20+rwkw just buy changing the cooler and nothing else.

[benm]

I just hope your not running 13psi 24/7.

[predator]

hmmmm.. does look you're not pushing much more than the standard 180-200rwkw most stock turbo people can get.

everything must be running pretty hot, thats all i can say! What has your tuner told you in terms of why you aren't getting more?? I am sure the first thing he *must* have said was the i/c.. even a cheapish GTR cooler should give u large gains.

[turbomad]

Well I've never seen the stock turbo make 200rwkw with the standard intercooler, so there's definately more power to be had, I imagine another 30rwkw would be on the cards with a FMIC.

1/4 mile times for your current setup should be mid-low 13's, with the FMIC you can certainly crack a high 12 if you can get the power to the ground, I've noticed alot of peoples times don't drop much with the increase of power but the mph do go up indicating not much traction, so in my opinion any thing over 230rwkw must have slicks to race with or your just wasting your time.

[benm]

Originally posted by Nrage33

and it dyno'ed at 255hp with 200rwkw at 13psi (did 270hp at 15psi.

Not being picky (just filling in time)

255hp = 190rwkw @ 13psi

270hp = 201rwkw @ 15psi

correct ?

:bahaha:

I'd personally be U/G'ing the stock IC @ ~170rwkw.

[Nrage33]

yea i know I should be replacing the stock cooler...haven't had the funds for that kinda work yet. I've got one on hold, $1500 for cooler plus piping...good price or not? any better deals?

I don't run it at 13psi all the time, 9psi is good enough for the streets. Can't afford to go nuts around here anymore

I was told by several ppl the car could make into the high 12's if the launch is a great one.

benm u're right about the numbers...my mistake

[Nrage33]

My tuner has told me everything is running fine, tuned it all the way up to 18psi at one point. He's assured me that the stock cooler is fine, but has obviously recommended a front mount

[CR34TION]

Originally posted by BOOSTD

Mine made an extra 20+rwkw just buy changing the cooler and nothing else.

How can an i/c increase power... doesn't it just allow for longer lasting power by keeping things cool?

So by adding fmic to a line that already has exhaust and filter, will see increase in power?

[Steve]

Cooler air is denser. Also, as it is cooler it will allow you to run a bit more timing as you are less likely to have detonation.

[turbomad]

FMIC with the usuall mods of more boost, exhaust, filter etc... won't yield great results without the introduction of at least an SAFC or full replacement ECU, as those mods generally see the A/F ratio run deep into the 10:1's, but once the A/F is returned to a respectable 12:1 that's when the results come.

With FMIC, exh, stock turbo my car made 168rwkw, with the SAFC tuned at 11.8:1 it made 188rwkw@12psi, only 20kw more in peak power but power was up all through the rev range and the greatest gain was at 5500rpm where it made 44kw more.

[BOOSTD]

All you guys are forgetting about flow. There is power to be had if you increase flow. This is the main restriction with the stock cooler. You will make more power at the same boost level and temp with a larger better flowing core. Try testing your boost level first before your stock cooler and then after and you`ll understand. No flow-no power no matter what the temp.

[Guest INASNT]

Originally posted by Nrage33

My tuner has told me everything is running fine, tuned it all the way up to 18psi at one point. He's assured me that the stock cooler is fine, but has obviously recommended a front mount

does your tuner realise that there is around 7 or more psi pressure drop through the stock cooler? and with a bigger turbo flowing more air it would be even worse!

[Steve]

BOOSTD, yes and no. Most boost controller read boost pressure in the plenum, and adjust the wastegate from that, not before the cooler.

[BOOSTD]

Steve, just trying to show the pressure drop across the cooler, it's easy to see when you test it yourself. I agree with what you said 100% ,but, no sure what your getting at ???

[dojobi]

I'd suggest an upgrade of the cooler and the computer. I've always been of the opinion that if you change the turbo, you change the computer (and a SAFC isn't really a full computer change imo). There's a lot of power to be had in adjusting the timing I think.

2 other things, my car became a lot more powerful with just a cooler change, so I really recommend it. Also, I feel 14psi is fine as a constant setting for the street because you aren't holding it at that like you are on the track.

[Steve]

BOOSTD, sorry that post wasnt very clear was it.

I was just suggesting that with a stock cooler on stock turbo, it is inadvisable to wind boost past about 12psi because of the pressure drop on the stock cooler - as you pointed out. With a stock turbo on FMIC, you can only get another 2.5 psi, because after that the resistance generated by the compressor causes alot of strain on the ceramic turbine, and failure is a matter of time - so the net total boost increase (flow gain) is only a couple of psi - safely. Definately a couple of psi worth having though.

As boost pressure is measured from the plenum, the boost seen by the engine is still going to be the same with bigger cooler, it will just be cooler, denser charge. (unless you wind the boost up)

I do understand that you were pointing at the huge pressure drop on the stock cooler above 6000prm:)

the above figures do not allow for the BOOSTD 'give it 1.1bar till she blows' theory...lol

does that make more sense?

[GTS-t VSPEC]

Seeing as I'm making the same sort of power at less boost then I'd suggest doing the FMIC along with everyone else, you'll notice a huge improvemnt.