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Difference in t04 turbos

Started by _mike_nofx_ , Nov 29 2005 08:18 PM

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8 replies to this topic

#1 _mike_nofx_

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Posted 29 November 2005 - 08:18 PM

Does anyone know the different types of T04's?
Like, whats the difference between a t04e or a t04b?

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#2 _ToranaGuy_

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Posted 30 November 2005 - 12:25 AM

T04e is a " trim " type iirc, with the e being the latter and better wheels, while the B is an older turbo, not quite as effieciant. I've got a Air Research T04 turbo, with .60 comp and .80 turbine housings in them, i can't remember the wheel sizes. Going into my torana. I think it's a B but can't remember for sure, i know it says T04 on the comp housing.

Do a few searches on google, and you will find the info your looking for. But remember one thing, just knowing the type, eg T04B or T04E doesn't mean much, you need to know the a/r's and wheel sizes as well. Also if it's oil, water or both cooled. Mine is oil cooled.

Cheers

ToranaGuy

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#3 _mike_nofx_

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Posted 30 November 2005 - 03:00 PM

mine says .60 on compressor and .84 on the other side..
Whats the numbers mean?

Mines a AiResearch T04

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#4 _jap-xu1_

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Posted 30 November 2005 - 08:44 PM

air research is to4b everytime. i made 335rwhp with one with a .6 front, .84 rear and s trim front wheel

Edited by jap-xu1, 30 November 2005 - 08:45 PM.

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#5 _ToranaGuy_

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Posted 01 December 2005 - 12:01 AM

That's roughly 265 RWKW!

Hell yeah! That's some power. What sorta engine was that snail hanging onto? An Rb30?

I found this on my wanderings around the net about a/r sizes.

A/R
A/R describes a geometric property of all compressor and turbine housings. Increasing compressor A/R optimizes the performance for low boost applications. Changing turbine A/R has many effects. By going to a larger turbine A/R, the turbo comes up on boost at a higher engine speed, the flow capacity of the turbine is increased and less flow is wastegated, there is less engine backpressure, and engine volumetric efficiency is increased resulting in more overall power.

I'm going to play with my setup the way the turbo is atm, and if i get hungry for boost lower in the rev range, i'll build a hybrid T04.

Cheers

ToranaGuy