dissapointed with t04r

Ed_RX7 · March 01, 2008, 10:20:29 PM

Quote from: shaunwilWow, been reading this for a little while and now I\'m seriously looking forward to the single. Didn\'t realise just how big the GT3574 is ! Its got a 82mm Comp and 74mm Turbine. How would that compare to the the TO4 turbos ??

As for the issue on the power a dyno will not always paint the whole picture especially with air temps at a high level. Are you sure that it hit that level and he let it cool back down. If you pulled the info off the commander it will only display the max level, even if it was ticking over letting other things cool down.

Shaun

You sure its got a 74mm front wheel (turbine)....I dont think it has but i may be wrong.

shaunwil · March 01, 2008, 10:41:05 PM

Original Quote from A-spec :

This is a new turbo I did up here for the demand I was getting for a non-BB 35R. Garrett does sell a non-bb GT35 but it uses a smaller 76mm compressor as oppossed to the larger 82mm wheel of the "R" model. Ours also uses a larger more rotary friendly 74mm turbine as opposed to the 68mm turbine of the standard 35R. This offers a very nice 1.1 wheel ratio as well as slightly increased flow out the turbine.

Here is a comparison

GT35 76mm comp, 68mm turbine.
GT35R 82mm comp, 68mm turbine.
GT3574 82mm comp, 74mm turbine.

As stated above this was a need that definitely needed filling as I get more emails about non-bb 35R\'s than anything else. So there you have it

Shaun

Ed_RX7 · March 01, 2008, 11:03:30 PM

sorry i mean compressor wheel not turbine.....the front wheel..
your talking about the back of the front wheel.

so shaun i think the measurement of your turbo will be:

The compressor wheel diameter (inducer) will measure 61.4mm and the back of the compressor wheel (exducer) will measure 82mm.

by comparison a t04r compressor inducer is 67mm
to4s compressor inducer is 60mm
t70 compressor inducer is 70mm
gt4294 compressor inducer is 70.3

Just didnt want to mislead you in thinking that your turbo was bigger than a t70 for example, as that was the impression i got from your fist post

cheers

memski · March 02, 2008, 09:17:11 AM

Shaun, I think as far as wheel sizes go the 3574 has the same size exh wheel as the t04r but a smaller comp wheel. Aspec have worked it out to be a good match for the rotor

shaunwil · March 02, 2008, 01:07:26 PM

I did think that it was smaller but after reading both bits I thought it was a bit bigger than originally planned. Its going onto an unported engine !

Just can\'t wait

Shaun

shaunwil · March 02, 2008, 01:10:00 PM

Don\'t worry, very glad you cleared it up

Shaun

Ed_RX7 · March 02, 2008, 11:03:46 PM

will deffo be good to how it performs on an unported engine.......any plans to port it down the line?

strange_days_uk · March 03, 2008, 07:52:03 AM

Ed have you had yours dynod yet mate ?

shaunwil · March 03, 2008, 08:07:41 AM

Quote from: Ed_RX7will deffo be good to how it performs on an unported engine.......any plans to port it down the line?

I think the plan is if I decide to go for some porting then this engine and turbo will go in the FB and I\'ll get a new engine already ported with a A-spec GT42R kit

Shaun

Ed_RX7 · March 03, 2008, 10:46:52 AM

nice!................

Ed_RX7 · March 03, 2008, 10:47:33 AM

Quote from: strange_days_ukEd have you had yours dynod yet mate ?

Sort of.....very very very good figures at 1 bar....but not gonna disclose/post yet as had an issue that i need to iron out first......call me for more info

jammy_uv · March 11, 2008, 04:42:46 PM

the HKS TO4r is not capable of any more power than around 450bhp is it? i saw one of these and looked on HKS power sheet. i think the power you\'ve got is pretty good. has pip mapped your car yet today? if so results?

Ed_RX7 · March 11, 2008, 05:03:05 PM

Quote from: jammy_uvthe HKS TO4r is not capable of any more power than around 450bhp is it? i saw one of these and looked on HKS power sheet. i think the power you\'ve got is pretty good. has pip mapped your car yet today? if so results?

depending on the porting and boost level...450rwhp is attainable on a t04r.

BlitzBoy · March 11, 2008, 05:37:33 PM

Quote from: jammy_uvthe HKS TO4r is not capable of any more power than around 450bhp is it? i saw one of these and looked on HKS power sheet. i think the power you\'ve got is pretty good. has pip mapped your car yet today? if so results?

With just a street port I had just under 500fwhp, Brian Ellis had even more out of one of his cars equipped with the TO4R, so sub 400 flywheel horsepower is pretty poor for this turbo, Im sure Pip will easily get more power

jammy_uv · March 11, 2008, 07:34:09 PM

wow really!?i looked at the To4r kit but just didn\'t make me feel like it was the one - so i went with the TD06SH25G kit. I will post some pics of my engine bay so far on a seperate post so you can all give me your opinions - or lash out at me lol. this will be the first time i will post pics of my car on this as i didn\'t really intend to until it was complete but its seams to be taking ages! lol.