RoadRunner....It is all in the setup....I am not suggesting 450whp all day everyday on stock internals....but if you do 2-4 track days a year yes the stock internals will hold with a good tune, that isn't pushing to much boost, timing or cylinder pressure, with good fuel and no detonation, hence E85....

 

Yea maybe on some ego-stroking moon dyno you'll see those #s on stock internals....

On a realistic dyno a 450whp STi should trap over 125mph in the 1/4... I doubt you'll find such an example on stock internals.

 

I am shooting for 430 or so on my 2011 STI Sedan on stock internals...I have build threads on both iwsti and nasioc under the user name jdpsearcher in power bragging sections.....

 

I have to take a look then, and good luck to you and your build... I hope you manage to prove me wrong...

 

Did you find the thread.....I made 410whp with a choked up exhaust....I need to get my midpipe replaced.....The stock one is holding me back something fierce....

 

I have a Turbo XS mid-pipe, and Race pipe, and RFL exhaust if you want to make some real power.

 

Yes I found your thread, and it pretty much proved My point.

Your running a 1.15 correction on you whp #s, or adding 15% to you REAL whp #s.

If you put your STi on with a normal 1.0 correction, which is what my STi made 500whp / 494wtq on, you would be making about 357whp.

So my point stands that on a real dyno with no added correction, i see no way you are gonna hit 450whp ... Not without adding 1.15 or 15% correction to your numbers like you are.


And I don't wanna hear "ohh well I'm at altitude, that's why there is a correction"

First turbo cars aren't effected that badly by altitude like n/a cars, and supercharged cars to a lesser extent are...


2nd.. You have an EWG which means your turbo'd engine will be affected less at altitude, the turbo will take longer time to make max boost but once that boost is reached torque/power levels should be comprable to one at sea level, since the turbo is designed to reach max boost at a certain rpm and maintain that till redline and won't drop in boost at higher rpm because of your EWG.

 

Make that 450whp on a 1.00 or 1.05 correction, if you insist on a tiny correction for your altitude... An then I'll be impressed and convinced... But don't fool yourself into thinking your altitude deserves a huge 15% addition to your whp #s.

 

LOL.....Your grasp of reality concerning altitude is just out there.....I am very happy with my numbers considering what is done to the car and the numbers are real enough.....Turbo's can't breath or push the same amount of air at 5200+ feet of elevation that it can at sea level....

I will be in Portland very soon and will have a sea level dyno.....

Bottom line is I am very happy with my build and the numbers the car puts out....

 

1st if you're gonna call into question my reality concerning altitude and turbos, you better provide some quantifiable evidence proving me wrong or else you have no argument and are just as out of touch with realty IMHO.

2nd even if I was wrong, for you to think the effect altitude is having on your turbo is worth adding a 15% increase(or 57whp) to your numbers is rediculous and out of touch with reality.

3rd I never questioned your happiness or satisfaction with your setup... Good I'm glad you're happy, but honesty I don't care how happy your are with your numbers... That has nothing to do with anything you were claiming before.

What I am doubting is your absurd claim that you're going to make 450whp on stock internals, without the help of an ego-stroking moon dyno and a correction factor.

Go to Portland and make 450whp on a dyno dynamics @ 1.00 CF on 100% stock internals, and post the dyno sheet with the correction factor displayed, and I'll admit I'm wrong...

Until then... Well... You've proved nothing... Sorry.

 

As for altitude and the correction factors....I don't need to prove it to you....I live at altitude and know the difference from sea level....Educate yourself, hell even use google if you need too....Your car up here would make considerabily less power, if you don't believe it maybe go find a dyno at 5250 feet and higher and see for yourself.....I already have....

Actually I will be more than happy to dyno at sea level and probably at 26 psi I will make the 450whp, also with no knock safely.....That will leave me another 6psi to play with regarding this turbo....But I won't push it further till I have my block built....

I picked up 22whp just by unbolting my stock midpipe.....So now to go buy a 3" midpipe....

I don't even know why I am having a discussion with you....I am proving my numbers on a dyno and will gladly post up more.....

 

Not sure what the answer is regarding how well turboed cars compensate for altitude-related hp loss, but I will eagerly await the outcome of your trip to Portland. Thanks for sharing your info so we all can learn. I've got two modded turboed cars (STi and GT2) but have not run either at sea level so I've always wondered how much I'm giving up.

 

Sladep....What is done to your Subbie and have you dyno'd it anywhere.....

 

I have to say you were right 430+ whp even with my correction factor was too much for the stock internals....Ringlands go bye bye....

I am having a stage 2 reinforced shortblock built by S&R Performance right now....

 

Ive owned an evo and have an RS4 right now, selling due to going back to school. Either gonna get another STi or go back to an evo again....STi's seem so much more complicated lol from a mechanical stand point and seem more expensive to mod. I had 400whp in my evo on my stock engine, so are you guys saying those same #'s arent really realistic without building the engine? Just wondering because all my evo friends have told me if they could go back, they'd get an STi because they are more reliable. I DD my evo for over a year and never had a single problem at that hp.