I kinda screwed myself. I bought the turbo about three months ago. I found an amazing deal about three weeks ago on a brand new Zetec and MTX75 for $500. The T3-S60 was only meant for a budget turbo project on my stock Zetec. I also got a great deal on a set of 42lb FRPP injectors. Now my dilemma is wether to even try and use the T3-S60 and the 42lb injectors, or just to sell them and save up for something bigger.
I never knew that the SVTs ran such incredibly high compression. After reading that, I think that the most I will drop my CR down to is 9:1. It all depends upon who makes what CR forged pistons.
If I do ditch the T3-S60, I'll probably go with a GT3071R. Check out the map...
The plot lines are (left to right) 2000, 2500, 3000, 4000, 5000, 6000, 6500rpms. With a PR of 1.5 I'm spooled by 2k, with a PR of 2 I'm spooled by 2500. Not too bad. The only thing that I don't like is that peak efficiency isn't reached until the 5500rpm region. That and the way the surge line swings in above a PR of 2.7. I can see why the HKS guy doesn't reach peak TQ until 4500. There is still a whole lot of room to grow with this turbo vs. the T3-S60.
BTW, I checked out that HKS GT3037S and it looks horribly overpriced. The GT3071R's specs are identical except for the compressor wheel being 71mm instead of 76mm. They both use a T04 comp housing.
BP
