I was basically looking to tune the Buick in as best as possible in terms of overall power. MPH was my goal... equaling the power made on 110 with the propane was the task.
Constants: JC100 VT chip, 20psi Boost, 17" Kumho 712s, 1/2 tank of gas, FMIC, ported stock turbo, FP @ 43psi, dual fuel pumps (#2 on @ 11psi), Pro-Pain (on @ 7psi), open exhaust dump, & 3.73s.
Results:
Best ET: 2.17 60' - 13.59 @ 102.72mph
This was done with closed exhaust & slipping it into OD before the end of the track. Damn 3.73s! But, I came up with my best radial tire ET for the car.
Best MPH: 2.30 60' - 13.71 @ 103.40mph
Outcome for Best MPH:
60' - 2.30
1/8 - 9.04 @ 83.36mph
1/4 - 13.71 @ 103.40mph
EGT: 1625*F (low tank pressure, need bottle warmer)
O2s: 760+ range @ top end.
TPS: 4.55v (thinking I need more)
RET: 0-5.5*
MAF: 254g/s
Open exhaust dump & made the run in 1st-2nd-3rd gear (no OD). EGTs hit 1625*F, clearly the propane was running at a low regulated temp. All and all the Buick has run the same MPH as it did on race gas with less timing and lil' less boost.
Now, it is a matter of up'n the boost and adding more base fuel to mix and seeing what happens. But, even with the low tank pressure the car barely knocked at all. Usually only when shifted into 4th at the top end.
When it was all said and done I was happy. Pro-Pain is good. I also like having the EGT gauge and the Tach... it made driving her much easier.
Conclusion:
The car ran just shy of 104mph on 110. The car ran 103.40mph on propane. The car had the advantage of closer to stock gearing with the 110, when the propane did not. A race chip was ran with the 110, and a new VT “100” chip was run with the propane. And because of this, I’d be temped to claim that there is some reasonable gains in what the propane setup has offered.
Yes, the car has a FMIC on it this year, but the overall weather was about equal. Granted it this isn’t a definitive back to back test in the same conditions, but it is close enough. And no. I am will not take the initiative to buy more race gas, and do the test. That would defeat the purpose of the Pro-Pain kit purchase.
Essentially, I found that with less overall tire diameter (25.75” vs. 28”) and the same boost levels (20-21psi) the car performed equally on 110 race gas as it did on pump 94 & propane. Perhaps better.
Constants: JC100 VT chip, 20psi Boost, 17" Kumho 712s, 1/2 tank of gas, FMIC, ported stock turbo, FP @ 43psi, dual fuel pumps (#2 on @ 11psi), Pro-Pain (on @ 7psi), open exhaust dump, & 3.73s.
Results:
Best ET: 2.17 60' - 13.59 @ 102.72mph
This was done with closed exhaust & slipping it into OD before the end of the track. Damn 3.73s! But, I came up with my best radial tire ET for the car.
Best MPH: 2.30 60' - 13.71 @ 103.40mph
Outcome for Best MPH:
60' - 2.30
1/8 - 9.04 @ 83.36mph
1/4 - 13.71 @ 103.40mph
EGT: 1625*F (low tank pressure, need bottle warmer)
O2s: 760+ range @ top end.
TPS: 4.55v (thinking I need more)
RET: 0-5.5*
MAF: 254g/s
Open exhaust dump & made the run in 1st-2nd-3rd gear (no OD). EGTs hit 1625*F, clearly the propane was running at a low regulated temp. All and all the Buick has run the same MPH as it did on race gas with less timing and lil' less boost.
Now, it is a matter of up'n the boost and adding more base fuel to mix and seeing what happens. But, even with the low tank pressure the car barely knocked at all. Usually only when shifted into 4th at the top end.
When it was all said and done I was happy. Pro-Pain is good. I also like having the EGT gauge and the Tach... it made driving her much easier.
Conclusion:
The car ran just shy of 104mph on 110. The car ran 103.40mph on propane. The car had the advantage of closer to stock gearing with the 110, when the propane did not. A race chip was ran with the 110, and a new VT “100” chip was run with the propane. And because of this, I’d be temped to claim that there is some reasonable gains in what the propane setup has offered.
Yes, the car has a FMIC on it this year, but the overall weather was about equal. Granted it this isn’t a definitive back to back test in the same conditions, but it is close enough. And no. I am will not take the initiative to buy more race gas, and do the test. That would defeat the purpose of the Pro-Pain kit purchase.
Essentially, I found that with less overall tire diameter (25.75” vs. 28”) and the same boost levels (20-21psi) the car performed equally on 110 race gas as it did on pump 94 & propane. Perhaps better.
since turning down the FP messes up the rest of the BLM's. Oh well, it is only a stock turbo so no sense in trying to go past 21psi. Need to take it to the track on a T&T night with the ET-Streets to see what the car is capable of. Last time I was there I got 12 or so runs in, should be able to either tune it or break something.
