\'94 Rt/10 with bolt on\'s really waking up now, 414 rwhp & 492 ftlbs...
Hi Everyone,
Just thought you might be interested in seeing what a header change alone did in addition to previous bolt on's.
The dyno information below shows run #3 on the '94 RT/10 with the following mods: smooth tubes, S&B air filters, aluminum flywheel, VEC1 engine calibrator, stock exhaust manifolds, high flow cats and side exhaust system (all Roe Racing parts).
Dyno run #4 is the same with one exception. We put on a set of Borla #17113 headers. These are the 1&5/8" primary tube headers with 3" collectors, where the 17112's are 1&1/2" primary tube and 2&1/2" collectors.
You'll notice that in the midrange, there is a great increase in power and torque. But, as the RPM increases, the larger tube headers start to fall off faster. This is the opposite of what you would see on a Gen 2 engine. It appears as though the cam that is in the Gen 1's is a far better torque cam and that the larger collectors and tubes may not be worthwhile. I'm going to put a set of #17112's on and dyno test again.
I will say one thing though. We're going to make a package out of this after the final testing is done. This car revs so fast and makes so much torque that it is an absolute blast to drive. It wasn't bad before, but now, it's like a whole other car. The thing revs like it's got a small block in it but pulls like a freight train. Individually, we sell the parts for about $3250 and we'll probably reduce the price as a package.
Hi Everyone,
Just thought you might be interested in seeing what a header change alone did in addition to previous bolt on's.
The dyno information below shows run #3 on the '94 RT/10 with the following mods: smooth tubes, S&B air filters, aluminum flywheel, VEC1 engine calibrator, stock exhaust manifolds, high flow cats and side exhaust system (all Roe Racing parts).
Dyno run #4 is the same with one exception. We put on a set of Borla #17113 headers. These are the 1&5/8" primary tube headers with 3" collectors, where the 17112's are 1&1/2" primary tube and 2&1/2" collectors.
You'll notice that in the midrange, there is a great increase in power and torque. But, as the RPM increases, the larger tube headers start to fall off faster. This is the opposite of what you would see on a Gen 2 engine. It appears as though the cam that is in the Gen 1's is a far better torque cam and that the larger collectors and tubes may not be worthwhile. I'm going to put a set of #17112's on and dyno test again.
I will say one thing though. We're going to make a package out of this after the final testing is done. This car revs so fast and makes so much torque that it is an absolute blast to drive. It wasn't bad before, but now, it's like a whole other car. The thing revs like it's got a small block in it but pulls like a freight train. Individually, we sell the parts for about $3250 and we'll probably reduce the price as a package.
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