Originally posted by modellor
I really have to disagree with you on this. JP were always quick but I dont think they were ever the best modded engine available and it was never actually proven as such (other than a couple of the .21 on-road engines). I believe the late Ron Paris prepped a far better modded engine and so did Mario Rossi.
As for STS. They have a huge following already and have produced some real good engines. Granted they may not be as fast on high end as other modded engines but then again you have to look a little further.
The STS is designed for ultimate torque to get best results around shorter twisty tracks whereas the JP is designed to produce high revs for the larger flowing European tracks. So in the right environment both engines will come into their own.
As for selling engines at $200 - $300 that can compare with the JP or other modded engines, that is already beginning. And you can be assured they are stock out of the box.
It is actually very easy to get top end out of the STS D3 and D5 engines by changing their crank timing.
If you compare a STS to a higher revving NR, you'll know exactly why it has no top end.....
My D3 has as much top end than any of my NR based engines, but it still has awesome bottom end.