Gtx35 on a 2.2

[jsws3]

Is any one useing a gtx35 turbo on a 2.2 for road use as I'm thinking about selling my gtx3071 and going for the gtx35 .

I will be useing water meth.
The engine is built buy Jp over size valves ported and polished head ect ect so its up to the abuse .

Or am I going over kill ?.

[A80Avant]

What hotside and where do you fancy having the engine spool?

[vti2]

Not bigger than .77

[jsws3]

.82 and ill give up some rpm in full boost for 600+ hp

[A80Avant]

Its not a street car then.

Its simple. If your aim is 600+ then you loose the fast responce. Your car will wake up after 4500rpm at least on every gear. Making the head better usually delays boost but gets more torque everywhere.

[Rocco]

water-meth + GTX3582 + road use on a 2.2 would be nice +700Hp

[prj]

4500 is optimistic IME, more like 4700.

After 500hp these cars at standard displacement are just straight line drag race cars.
Not very much practical use.

[Pat D]

Much difference if it were a stroker?

[prj]

Pushes the spool 500 rpm down and so makes the GT35 turbine semi-viable.

I personally don't fit Garrett on anything anymore though. It's like a lottery. Sometimes you get lucky and they last for a long time and give no problems, but often you don't.

[DJones]

I must be a lucky one, quite happy with mine early spool and 480 from a GT3071.82 I honestly think anything bigger would spoil it.

[prj]

Don't forget w/m injection. Dynos measure inlet temps at the air pickup, not at the manifold. A fan usually does not cool as well as having the car on the open road, so chemical intercooling always gives way higher numbers on the dyno (same experience for me, I always get higher numbers as well).
The car is still faster on the road of course, but the numbers get a little over-exaggerated compared to non-chemically intercooled cars as a result of these peculiarities IMO.

[DJones]

True, to be honest I'm not really interested in the numbers which is why I only recently put it on the rollers. I'm more interested in how it feels on the road and I wouldn't want it any quicker nor any more lag so all in all it ticks all the boxes for me.

[Nik0las]

you can go for GTX3576r i think is the optimal variant for a street car.

[prj]

True, to be honest I'm not really interested in the numbers which is why I only recently put it on the rollers. I'm more interested in how it feels on the road and I wouldn't want it any quicker nor any more lag so all in all it ticks all the boxes for me.

Considering the weight of your car I can very well appreciate that.
It really depends on the chassis with these engines as well. A 1200kg car with 500 hp is much faster to drive than a 1700kg car with 600

[PRY4SNO]

This is a good thread; it's very relevant to my current research.

I've been leaning toward an HTA3576 or 3582 in a .82AR (granted this is for a 2.5L stroker with w/m).

What's the consensus on Precision? What's the comparable size for a 35r? I'd wager a 5858? Or more like 6262?