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The mkiv Supra Owners Club

T61, T67 size question


jevansio

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Does the number after the T denote the compressor inducer diameter?

 

I know my GT4088R comes between these 2 in the size scale, on the Garrett website it says the GT4088R has a compressor inducer diameter of 63.5, does this mean this turbo is the equivalent of a T63 (.5) so it's approx midway between a T61 & T67.

 

The GT4094R has a 67.8mm inducer, does this mean is virtually the Garrett equivalent of a T67 in terms of size, power, spool?

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I thought the compressor map for the gt4088 was similar to a T67.

Not sure mate,

 

Since I've had this extra boost I can feel the turbo being strangled top end, was side by side against Michel today & considering he's got a 74mm turbo I was impressed with how responsive it was, & boy does it shift.

 

I think the GT4094R is a direct swap for a GT4088R too, both 4" inlet, 2.5" compressor outlet, T4 footprint & 3" VBand exhaust.

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yummy!!!! Bigger turbo!!! yum yum!!

 

I put a .96AR on my 67dbb and i didn't really like the lag it added. It made about another 40whp on the big end but daily driving it, it felt a little sluggish. I put the .81AR back on and called it a day.

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yummy!!!! Bigger turbo!!! yum yum!!

 

I put a .96AR on my 67dbb and i didn't really like the lag it added. It made about another 40whp on the big end but daily driving it, it felt a little sluggish. I put the .81AR back on and called it a day.

Hey Kyle :)

 

I love the 4088 but I have a feeling something T67 sized is going to be even better, I wonder if it's a case of the grass always been greener on the other side.

 

Can you get hold of the Precision GT4094R's ????

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Don't know if I'm ready for something "that" big yet. On the other hand I don't want to upgrade to a GT4094R if there's not going to be that much difference.

 

I think you need to get the train down mate and have a ride in ash's as i think you will be surprised how quick it spools.... oh and when its live you will definalty want one :D

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Hey Kyle :)

 

I love the 4088 but I have a feeling something T67 sized is going to be even better, I wonder if it's a case of the grass always been greener on the other side.

 

Can you get hold of the Precision GT4094R's ????

 

Of course I can get them, PM when you are ready to start looking in to them.

 

My personal experience is if your wanting just a little bit more, dont do it. Its not worth the cost to upgrade just for a few ponies. If your wanting a massive jump in size, then do it. The grass is always greener, is it worth the cost though :p

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Of course I can get them, PM when you are ready to start looking in to them.

 

My personal experience is if your wanting just a little bit more, dont do it. Its not worth the cost to upgrade just for a few ponies. If your wanting a massive jump in size, then do it. The grass is always greener, is it worth the cost though :p

Sound advice mate, appreciate it as always, you'll be the 1st to know if I decide,

 

I guess after an afternoon against 74mm turbos & big bikes you'll feel like you need more, I'm hoping that feeling goes & I feel content again, I think I need to get the car on a track for that to happen.

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If you have spare cash, 2 maps and 2 turbos....you can have nutter mode and ludicrous mode ;)

 

And maybe top it off with Are you nuts?! mode

 

In the UK the most I'd use would be a 71DBB....this is about as big as you cango without waiting for boost between gears.

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The 74mm turbo that i have has no issues with boost between gears , i was astonished on how it spooled against Jays car. Both side by side starts and i just propelled forward. I find its the perfect turbo for my driving style .I suppose its all to do with the setup aswell, saying this my spec is virtually the same as Jays , apart from 272 cams apposed to 264..

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The 74mm turbo that i have has no issues with boost between gears , i was astonished on how it spooled against Jays car. Both side by side starts and i just propelled forward. I find its the perfect turbo for my driving style .I suppose its all to do with the setup aswell, saying this my spec is virtually the same as Jays , apart from 272 cams apposed to 264..

:yeahthat:

 

I came out to cheer Michel up, he sent me home depressed :)

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A Garrett T-04Z could be a good choice Jay.

 

Turbine

-Wheel: 74.2mm w/ 76 trim

-Divided Housing A/R: .70, .84, 1.00, 1.15, 1.32, 1.59

-Undivided Housing A/R: .61 and .70

 

Compressor

-Wheel: 84.0mm exd./66.7mm ind w/ 63 trim

-Housing: 0.70 A/R

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