Dyno'd last night @ 6pm. It was still near 100F, not ideal, but I needed to dyno again before my upcoming open road race. The plan was to do a 15psi pull and then a 21psi pull. One problem, no race gas. I filled up with 91, not even thinking about the dyno. I could have squeezed a gallon of 104 in, but it would not have made much difference. So the high boost numbers will still have to wait. And honestly, even though my fuel pump is new, it is only a 190lph. I have a 255lph HP that I want to install before I do any more 20+psi runs.
Also, my 80mm Linc was indeed maxing out before I hit my HP peak. I take back what I said before about Linc MAF's. Looks like ~380whp is as much as they will meter on my car. So the Lightning 90 will be going in with the 255 pump soon, and then the high boost numbers everyone is waiting for will happen. Now on with it!
First run, 13psi, much less timing than before, and a lot less fuel. It worked, as the car pulled all the way to redline. 380some whp and 350tq, or there abouts. Datalogging with the tweecer is a dream come true. I could see what was going on in detail (inlet air temps were 126F @ 7000rpm, not bad). Also, my A/F was 10.5. I added some more timing, and some more boost. Wanted to be careful though, as I only had 91 octane.
Next run was the best, 14psi, 2degrees more timing. 390.5whp/365.6tq. It looked like the computer was actually pulling some timing out, I think in part because the car had a high speed shake, but who knows. My A/F also leaned out a bit from the first run, especially up top. @ 7300rpm, A/F was 11.0.
Not the numbers I was hoping for, but in reality, they are very good. With only a tad more boost (.5-1psi) over the other setup, I made the same power (390whp vs 388whp), but I also have a stock intake and BBB's. That extra restriction equals more boost but not really more power. Were I to replace the manifold with my EH/BBB one, I would likely see the same if not more HP, but due to the lesser restriction, at a lower boost level. But the best thing about last night is that I can now see that my 2.5" dp is NOT a restriction. The reason the old setup lost a lot of power up top was due to the small a/r T3 turbine. This new turbine is much bigger. Car pulled all the way to redline. The power comes on a little later, much smoother, and it just keeps going up.
So the future looks bright. With the 90mm, 255pump, 104unleaded race gas and 21psi, I think we will see some VERY good numbers. YamahaSHO will be in Nebraska for the road race, and he has offered to look at my tune. With a rock-solid tune and all of the above, (in addition to spraying my IC, which I will be hooking up soon), the sky is the limit. I may even throw on my EH/BBB intake for comparisons sake.
Anyway, those are the updates. Next up is to see how this car fares against the Corvettes and Vipers on Friday (the mile race, but 1/2 mile for - no cage)
And now with the scan:
Also, my 80mm Linc was indeed maxing out before I hit my HP peak. I take back what I said before about Linc MAF's. Looks like ~380whp is as much as they will meter on my car. So the Lightning 90 will be going in with the 255 pump soon, and then the high boost numbers everyone is waiting for will happen. Now on with it!
First run, 13psi, much less timing than before, and a lot less fuel. It worked, as the car pulled all the way to redline. 380some whp and 350tq, or there abouts. Datalogging with the tweecer is a dream come true. I could see what was going on in detail (inlet air temps were 126F @ 7000rpm, not bad). Also, my A/F was 10.5. I added some more timing, and some more boost. Wanted to be careful though, as I only had 91 octane.
Next run was the best, 14psi, 2degrees more timing. 390.5whp/365.6tq. It looked like the computer was actually pulling some timing out, I think in part because the car had a high speed shake, but who knows. My A/F also leaned out a bit from the first run, especially up top. @ 7300rpm, A/F was 11.0.
Not the numbers I was hoping for, but in reality, they are very good. With only a tad more boost (.5-1psi) over the other setup, I made the same power (390whp vs 388whp), but I also have a stock intake and BBB's. That extra restriction equals more boost but not really more power. Were I to replace the manifold with my EH/BBB one, I would likely see the same if not more HP, but due to the lesser restriction, at a lower boost level. But the best thing about last night is that I can now see that my 2.5" dp is NOT a restriction. The reason the old setup lost a lot of power up top was due to the small a/r T3 turbine. This new turbine is much bigger. Car pulled all the way to redline. The power comes on a little later, much smoother, and it just keeps going up.
So the future looks bright. With the 90mm, 255pump, 104unleaded race gas and 21psi, I think we will see some VERY good numbers. YamahaSHO will be in Nebraska for the road race, and he has offered to look at my tune. With a rock-solid tune and all of the above, (in addition to spraying my IC, which I will be hooking up soon), the sky is the limit. I may even throw on my EH/BBB intake for comparisons sake.
Anyway, those are the updates. Next up is to see how this car fares against the Corvettes and Vipers on Friday (the mile race, but 1/2 mile for - no cage)
And now with the scan:
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