Big Turbo Owners Feedback - Page 3 - SRT Forums

2acrguy · 11-18-2005, 06:25 AM

Quote: Originally Posted by ilumo

yessir...

the gt40 is greeeeat.... time to up the boost some more =] 20psi is not enough

turn around 24 or 25psi with a gt40 its a whole other car

richie

brady · 11-18-2005, 06:00 PM

Wow, so gt35r's are great in the 1/4 mile.

What is a good street turbo? gt30r?

Keep the information flowing!

UrBaNsTyLe55 · 11-19-2005, 12:49 PM

i went big turbo and would not turn back i'm only runing 10psi since don't have the fuel for it but love once that spool kicks up how power kicks in and stay and i must say through my but dynos lol my 10psi feels like the 17psi spike dropping to 13psi i had on the stockers, only thing i don't like is how damn loud the wastegate it i will be re-routing the tubing to get rid of that, still got some other tweeking to do also such as doing a full 3inch from downpipe back and 3inch intake

gtup · 11-19-2005, 01:19 PM

what does the wastegate sound like??

UrBaNsTyLe55 · 11-20-2005, 12:33 AM

my car sounds like a damn 18 wheeler

Kustomatix · 11-20-2005, 12:40 AM

It sounds like an exhaust leak. Our kits come with dump reroutes (normally an added fee from other companies

)

UrBaNsTyLe55 · 11-20-2005, 01:05 PM

the sound is through the dump tube at idle its loud as hell even when i start to hit the gas pedal to drive normally i thought it was to remain shut and only open at high boost or maybe i'm wrong anyone know why it might explain why i don't go past 10psi

brady · 11-20-2005, 01:07 PM

Open dump is nasty, some love it, some don't

I am a little confused about how much boost you can run on the stock FUEL system with out:

A) Larger injectors (on the stock fuel rail?)

B) Larger fuel pump

C) Fuel return line

D) Fuel bottleneck mod

I know the answer will be different for different sized turbos but what would be a general "rule of thumb"?

Also what would the horsepower clip levels be (ie. 300+ hp = bigger injectors, 400 - 450 hp = Fuel return line, 450+ hp = bottleneck fuel pump somewhere in there)?

brady · 11-21-2005, 04:43 PM

^^^^^??

LED FUT · 11-21-2005, 05:16 PM

When I made 417 I still had good A/F's and I have 750's and a 255 pump with no return line. With the stock injectors and fuel pump I made 320 to the wheels on 15psi.

brady · 11-23-2005, 12:52 PM

No return line?

LED FUT · 11-23-2005, 03:56 PM

Quote: Originally Posted by brady

No return line?

Nope, keeping it real. I like the way the car drives with the stock setup, so I left it alone.

koreandragon · 11-23-2005, 04:02 PM

Quote: Originally Posted by gtup

what does the wastegate sound like??

With a dump tube, like a loud whirr. Not high pitched like a turbo though...course, running it with a ndswing cutoutopen, ya won't really make out any noise other than LOUD

I RULE YOU! · 11-23-2005, 04:18 PM

so with the big turbo set up, lets say the 50 trim 63 ar , if you want to make mid high 300hp and maybe 400 on race days, how would reliability be on that when keeping in mind you still have to drive this thing every single day (to work, around town occasional short distance trip) does it stay reliable ?

LED FUT · 11-23-2005, 04:40 PM

Quote: Originally Posted by I RULE YOU!

so with the big turbo set up, lets say the 50 trim 63 ar , if you want to make mid high 300hp and maybe 400 on race days, how would reliability be on that when keeping in mind you still have to drive this thing every single day (to work, around town occasional short distance trip) does it stay reliable ?

Yes, and it's all in the tune.