has anyone ever done this upgrade on the forums.....a buddy of mine has had his srt4 04 for about 6months now and lemi tell this thing is fast...the thing put down 456hp and 507 torque on the dyno two weeks ago.......i dont kno if many people kno but the gt35 turbo is used in the big boy toys like the nissan skyline other vehicles.......he got it from www.turbo-kit.com .........his car is freakin inSANE.....i will definatle try to get some pics of his car and the dyno sheets and quarter mile times.........

 

ur link doesnt work, what good is that?

 

ok...and? with the size of that turbo, i can only imagine the insane lag that it must have. what does it spool at? i can't see it hitting full boost much before 3500-4k. bigger isn't always better.

 

Lag and spool up are two different things all together...and bigger turbos usually always take longer to spool up...Lag is caused by too much boost rather and in a front wheel drive car the overboosting can be an advantage since in 2nd through fifth is direct power even if you lose it in first but you will have less burn outs and such in first so that helps more then harms. So if he drags it I bet it will do better then most people think.

 

http://www.turbo-kits.com/sentra_turbo_kits.html Here is that website he got it from....

 

um, no. i have no idea what you're thinking of, but it's not turbo lag. more like wheel spin...

lag is caused by the inability of the engine to create enough pressure to spin the turbine wheel fast enough to create boost. the engine has to produce enough exhaust gas to do this efficiently, and with our little 2.4's it has a hard time doing that on larger turbos. even a 50 trim doesn't completly spool until around 3k-3200, a gt35 won't get there until a lot longer after that. how much lag you have is determined by what rpm you begin to make positive boost. the longer it takes, the more lag you have.

 

a gt35 is a big turbo. rea5 the Tuner mag (Europe)@ full spool is 4100k...

 

BOOST=Charge air sent from compressor to combustion chamber in psi measure...... engine has nothing to do w/ boost your compressor does. Smaller turbo does better w/ normal exhaust pressure bigger turbo needs more to spin adequately.

Turbolag= Hesitation in production of boost....it takes more exhaust to efficiently spin a bigger turbo. However they lag and spoolup are two diff things all turbos take time to spool up but where the exhaust pressure inadequately spins the larger turbo it then translates into lag. The closer you can get to the head of the motor the better amount of exhaust you get to your compressor and the less amount of lag you get and the less amount of backpressure you have helps too. TRIM only depends on your turbine wheel and compressor not the housing. Bigger turbos boost higher and smaller turbos boost lower. Bigger is better if you want more power but smaller is better if you want virtually no lag and drivablilty. But w/out lag in a FWDcar/and smaller turbo itll cause more burnouts in 1st and 2nd and bogdowns in 3rd. Which when dragged vs a bigger turbo, the smaller will usually lose.

 

thanks, you wrote out exactly what i was trying to say. nice cut and paste! it's completly the oposite of your original post, so thanks for correcting yourself

 

not cutting and paste but basically the same thing i was tryin to tell you.