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Rb3025 Turbo Question

srpwrd

By srpwrd,
in Engines & Forced Induction

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Imtorqing Community Regular

Imtorqing

Posted
Posted
yeah so when roughly would it come on do you reckon

My guess(Key word) would be boost by the end of high first gear, quick change full boost by about 4000 to 4500rpm maybe even 5000rpm just depends on the motor.

My 42R comes on about there but has head work and larger exhaust valves. The guy who bought my 25/30 put another 35/40 with a 1.06(1.04??) rear and Ive been told its laggier. I used to get full boost before 4000rpm in second with the .82 rear so you should be in a similar ball park.

If a guess was all you were after, I hope it helps.

Cheers

Bill

The Dan Grand Master

The Dan

Posted
Posted
My guess(Key word) would be boost by the end of high first gear, quick change full boost by about 4000 to 4500rpm maybe even 5000rpm just depends on the motor.

My 42R comes on about there but has head work and larger exhaust valves. The guy who bought my 25/30 put another 35/40 with a 1.06(1.04??) rear and Ive been told its laggier. I used to get full boost before 4000rpm in second with the .82 rear so you should be in a similar ball park.

If a guess was all you were after, I hope it helps.

Cheers

Bill

Two totally different turbos.

The Dan Grand Master

The Dan

Posted
Posted
yeah so when roughly would it come on do you reckon

Would help if you could actually identify the turbo. There are about 10 different T04 combinations so just asking when you will make boost is like saying how much hp will I make with 20psi and not stating what turbocharger you actually have.

Imtorqing Community Regular

Imtorqing

Posted
Posted
Two totally different turbos.

I am aware of that (The difference btw turbos) but with the larger rear housing on a stock motor(im assuming no head work, larger throttle etc) the reaction time for full boost would be similar (Hope that is clear as mud).

Btw 4 & 5g in second is where I would guess full boost will occur for this turbo on his motor. Its like guessing jelly beans in a jar but I dont mind guessing and then he can tell us when it does and someone will win (yay).

Mate put it on and open a new thread with the result.

Lithium Grand Master

Lithium

Posted
Posted
Hey all

Can someone please tell me when a 66mm front wheeled t04 with a 1.00 rear would come on boost on a 30/25.

I know its a stupid question but i just roughly want to know. does anyone have any idea..

If you look through the RB30 turbo results you'll find one of the early results have a T66 with a .84a/r turbine housing running a 25 head - should give you an idea (full boost at 4500rpm for that setup I think). It will be laggier than that :P

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