I'm looking at a Garrett 60-1 and I want it to spool relatively quickyly. Can someone please tell me if this setup will work. I'm looking for a street car, not a track car. This is on a T4 style manifold.

Mods: Greddy 2-row FMIC, 1600cc secondary fuel system, Koyo rad, AEM EMS

Turbo: Garrett T60-1 T3/T4 57 Trim
Compressor: Trim: 57 A/R 0.60
Turbine Housing A/R: 0.82

I know that the turbine housing A/R is low, but I have read that the smaller the A/R the faster the spool and since I want a street car I figured I didn't need the higher A/R's.

Is the trim alright or should it be changed? Higher or lower?

Thanks.

 

The 60-1 should meet your needs. The specs you give make no sense and controdicts itself. Garret does not call it a "t60-1", its simply a 60-1. "T3/T4" implies its a hybrid, using a T4 compressor with T3 turbine. Thats no good for a rotary application. "57 Trim" is NOT a 60-1 trim. The trim for a 60-1 works out to be 60. "A/R 0.60" implies its running either a T04e or T04b compressor housing, either will restrict flow slightly over the standard compressor cover called a T04S which has a 4" inlet and 2.5" disscharge and .7 A/R over the t04e and t04b's 2.75~3" inlet and 2" disscharge and .6 A/R. last, "Turbine Housing A/R: 0.82", no such animal exist that I know of in a t4 turbine housing A/R. Its a T3 sized turbine which would makes sense since earlier it read t3/T4.

Its sounds like a uninformed turbo seller, let me guess, somethign from eBay?

Your specs should read as follows:

*T04S compressor cover (4" inlet, 2.5" disscharge, .7 A/R)
*60-1 compressor wheel.
*I'd recommend a 360 degree thrust bearing and dynamic seal (stay away from carbon seals)
*I'd recommend a "wet" center or CHRA (center housing rotating assembly). You don't have to have water cooling, but it does extend the life of the turbo by quite a bit and you already have provisions for water from the stock engine.
*P-trim, T4 turbine wheel.
*.81 A/R, P-trim, TANG (stay away from On-center turbines, their effeciency sucks and they kill spool and power), T4 turbine housing assumming you go with a non divided manifold. If you go the more expensive yet better response and more power divided type manifold, go with a .84 A/R, T4, divided, TANG tubrine housing. Do a search on more on divided verses non divided if your interested in it.

your looking for a full t4 turbo, not a tiny T3/T4 hybrid suited for a HonDuh.

~Mike...........

 

It's not an eBay turbo. I learned my lesson once... never again. Good to know, thanks for the reply. How about this one:

Garrett GT35R aka GT35/40R Turbocharger
Specifications

Compressor:
Wheel Diameter: 82mm
Trim: 56
A/R: 0.70

Turbine:
Wheel Diameter: 68mm
Trim: 84
A/R: .63 ar, .82 ar, 1.06 ar

With the .82 ar, right?

 

user removed

 

GT35R is a great turbo. keep in mind it will be more exensive then the 60-1. It'll have slight better response and simular power levels on pump gas as well. The GT35R comes standard with t3 turbine housings. Make sure you get a T4 turbine housing OR get a t4 to t3 adaptor if you get the T3 turbine housing so it bolts to a t4 manifold (t3 manifolds are extremely rare to come buy unless custom made). Personally, I'd get the smallest t4 sized tubrine housing over a larger t3 sized. Do a search in this section of the forum, its been covered in detail. You may want to check with A-Spec as well, for those guys pioneered the t4 hot sides for the GT35R.

Just a side note, I'm not contradicting myself by saying T3 turbines are too small (they are) for rotaries and then agreeing with the GT35R t3 hot side. If you compair the actual turbine wheels, the GT35R has a T4 sized turbine wheel, just using a T3 sized foot print on the turbine housing. The t3 tubrine wheels are small.

~Mike............

 

Physically if I recall correctly the 35R turbine wheel is a step down from a P trim. How well it flows compared to a P trim I don't know, I was told by a crediable source it ouflows the older P trim technology, but I'm skeptical..

 

what about this one:

Garrett T04R
Garrett T67 (67mm/84mm) compressor wheel, .70 A/R T04S compressor housing with 4" inlet and 2.5" outlet slip-on connections. Also Known as the "T04R", T4 flanged P Trim, (Specified) A/R Turbine Housing with standard 3" V-Band discharge. Other A/R's available.

Turbine
-Wheel: 77mm 84 trim
-Maps: Not Available

Compressor
-Wheel: 88mm 54 trim
-Maps: Not Available

 

T04R, good turbo. Will make slight more power at same boost levels (say 10~15 psi) as the 60-1, GT35R with slower spool up. Your getting into larger turbos here and they spool slower. It'll make much more power at higher boost levels then the other two above say 17 psi on up, which requires H20 and/or alk injection or race fuel and different tune.

~Mike...........

 

For the Garrett T04R is .70 A/R good or do I want to go higher A/R? If it would be better to go with a higher A/R, which one should I go to?