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Extra stroke volume seems to help up the top, but the GT-RS's stroked wake up alot more than 2530's stroked. Mind you though if you ran 25pound through 2530's you expect the same sort of power as the GT-RS.

Extra stroke volume seems to help up the top, but the GT-RS's stroked wake up alot more than 2530's stroked.

That's more the tune and everything else. stroker should bring on ALL turbos quicker... smaller they are the faster... so if its not matching then the setup is missing something... or gearing is different etc etc

So I've recently replaced my old HKS 2530'S with the GARRETT 2860'S-5. I was instantly impressed with the low down power.

Re: the increase in low down power, are you talking about how the car feels when you drive it, or the graph shape?

Why did you change turbos?

Car is making a shitload more power in the lower RPM range opposed the 2530's IE 20pound at 4k opposed to 5k. My rear 2530 bearings failed so I decided to purchase the garrets because of the cheap price and also rebuild both the 2530's to new spec

And they have been rebuild now and are ready to put back on but I prefer the 2860's.

Clint.

Car is making a shitload more power in the lower RPM range opposed the 2530's IE 20pound at 4k opposed to 5k. My rear 2530 bearings failed so I decided to purchase the garrets because of the cheap price and also rebuild both the 2530's to new spec

And they have been rebuild now and are ready to put back on but I prefer the 2860's.

Clint.

did you take the sump off and clean it out? The ball bearings in the core assembly fall down the drain tube upon bearing failure and end up in the sump. These balls are small enough to pass through the oil pick-up gauze and end up making a mess of the oil pump (shattering the gears into several pieces).

Hey Brockaz..

Dont suppose you have a sheet with 2.8 with 2860's, like Gavs later combo.

I only have his initial run, which only made about 500hp and finished at about 7k.

He has another chart where he's made 550hp and revs out. Thats the only one worth putting in that graph.

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