Alcohol or Propain Track Times

[TWIN86GNS]

Originally posted by 1badTTA
Now look at my sig and see what is meant by that. 12.9 @111 is only 3 tenths quicker but 8mph faster. Let me see what I can do with the ET-Streets and propain, should be interesting.

That's my point, he is running 103 mph so I don't see how race fuel and slicks would put him into the low 12's If he is running 22#'s of boost with Pro-Pain where is he going to get the extra horsepower from if he decides to run race gas?

With your 111 mph trap speeds you should be very low 12's or even high 11's. Good luck at the track getting some better E.T's.

 

[motorhead]

Originally posted by TWIN86GNS
That's my point, he is running 103 mph so I don't see how race fuel and slicks would put him into the low 12's If he is running 22#'s of boost with Pro-Pain where is he going to get the extra horsepower from if he decides to run race gas?

Paul,
As discussed on the "other board" we both know that I have too much gear for this engine combo. While a reduction in rpm may aid MPH, I am far more concerned about the advantages found in my torque converter. I was leaving on ~3psi of boost, and flashing the converter/pedalling it through the 60'.

On a set of 28" tall ET Drags (which I own), and being able to launch at the full capacity of the converter/brakes I am willing to bet there is another 1/2 second of ET in this car, easy. Proper, or even stock weight transfer would only improve this, as it would be closer to a "traditional state of tune": being able to "stand on it".

I am not worried about the fuel side of things, this car should be able to turn 100mph on straight 94, sans propane (I think it has... ) with 3.42 gearing and 26" tall tires.

Unfortunately, I have painted myself (willingly) into a corner by approaching this car differently than most owners.

Oh well, I am gonna see what some 3.08 gears will do for her... other than easily sustain 150mph in 3rd gear.

 

[Bill_Ritter]

Propain

Well i went to the track this past weekend and ran a 13.002 @ 104.08mph. my 60' was a 1.969. This is with 22psi boost, 24 degrees of timing, and pump gas (94 octane) with propain. Im going again on friday night to try to get it into the high to mid 12's. whenever it would shift into third it would spike from 0 knock to 15 degrees! I could actually feel the car fall on its face . i think the problem was the small 5 lb tank running low on pressure at 3/4track. so i installed a 20lb tank that should make a difference at least i hope it will. Oh yeah, i was using the 99 jet with 150 psi regulated. bottle psi was 200 due to the bottle warmer that i fabricated.