twicks69
Supporting Vendor
- 4,301
- 2,005
- Mar 12, 2004
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Milwaukee,
Wisconsin
Personally, if the car is going to be a DD, you should really look at a set of 272's. You will have a solid midrange and top end, while keeping a decent idle and having a very streetable vehicle.
As for 1993eclipsegs's question, I would reccomend a GT4294R over a GT42 non-ball bearing anyday. You will see spoolup in the 5K+rpm range with the 4294R on 272's with full boost around 5500-6000rpms and will likely see peak torque around 7000rpms and peak horsepower around 8000-8500rpms. Expect at least 500rpms more for the non-ball bearing version.
If this is a race car only, and you don't care about streetability, then I would go with the 280's. Especially if you are revving the 2.3L above 8400rpms towards 9500-10,000rpms.
I hope that you are using Crower or Groden rods at that point with Mahle or Ross pistons, along with dual valve springs and oversize valves to take advantage of the 280's in a stroker race motor.
Personally, I would keep the 272's in a 2.3L street stroker with a turbo like a GT4088R or a GT4094R and rev it to 8600rpms at the track. The 272's with the 4088R makes an excellent street power curve from 3500-8500rpms, peaking torque between 5000-6000rpms, and peaking horsepower from 5500-8000rpms.
As for 1993eclipsegs's question, I would reccomend a GT4294R over a GT42 non-ball bearing anyday. You will see spoolup in the 5K+rpm range with the 4294R on 272's with full boost around 5500-6000rpms and will likely see peak torque around 7000rpms and peak horsepower around 8000-8500rpms. Expect at least 500rpms more for the non-ball bearing version.
If this is a race car only, and you don't care about streetability, then I would go with the 280's. Especially if you are revving the 2.3L above 8400rpms towards 9500-10,000rpms.
I hope that you are using Crower or Groden rods at that point with Mahle or Ross pistons, along with dual valve springs and oversize valves to take advantage of the 280's in a stroker race motor.
Personally, I would keep the 272's in a 2.3L street stroker with a turbo like a GT4088R or a GT4094R and rev it to 8600rpms at the track. The 272's with the 4088R makes an excellent street power curve from 3500-8500rpms, peaking torque between 5000-6000rpms, and peaking horsepower from 5500-8000rpms.
