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Discussion Starter #1 (Edited)
Over the weekend we took my slingshot dragster out to play with the big boys at the Main Event at santa pod. Shifting problems had limited my previous performance, and I thought that the problem was me.... well it all came together and I ran my first 9, a whopping 9.46 at 138 MPH. Still had some shifting problems over the weekend, finding that sometimes I was shifting in to neutral... turns out that my worn out old hurst ratchet shifter was shifting itself from 1st to 2nd during launch, and I was then shifting as normal leading to 3rd and neutral. We managed to qualify 32 in a 32 car field (but with 36 cars trying to qualify) - 7 hundredths off my dial in, but I cherried in round 1 eliminations... I tried to hard. To make the car run consistantly i had to launch while holding the shifter down to stop it popping into 2nd which took some getting used to. Anyway on my last run i managed a 9.45 @ 139.72 MPH

slip looks like this:
rt -0.0153
60 ft 1.3588
330 ft 3.8326
1/8 ET 5.9740
1/8 MPH 114.04
1000ft 7.7941
1/4 ET 9.4514
1/4 MPH 139.72

Hopefully we can get the shifter sorted and plumb in the nitrous before we go out again... Im looking for 8.90's for super comp... Would 100 more HP be enough? Car weighs around 2000lbs with me in it.

More info on the car here:
http://460ford.com/forum/showthread.php?p=811083#post811083
 

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Congrats!!

For your first 9, your well into the nines!!!:D

Good luck, keep tweekin!!

Bill
 

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out of boredom (off work today) i used a generic HP calculator and at 2000lbs it takes approximately 468hp at the flywheel to get your current 9.45 ET. 100hp extra, typed in the same lil formula gets 8.86 ET. this is basic though, lots of things come into play and can effect that as im sure u know! good luck CONGRATS on the 9 !
 

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Discussion Starter #5
Do you guys think the car is running the sort of numbers i should expect, based on the mild 528ci motor, or is there maybe more to come motor only before I bring in the nitrous? The car runs straight as an arrow, and on launch it just tucks down and digs in. I had estimated that the car should run mid to low 9's on the motor, so I think its not that far off. We checked the plugs and the colour was perfect, and were looking at maybe trying a bit more ignition advance (the ignition is currently set conservatively by ear).

Online estimates point to around 470hp. This must be Rear Wheel HP. I guess the C6 is eating up quite a lot, so im guessing maybe the motor is putting out 530-550hp.
 

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Congrats on the 1st 9... I'm "hoping" I can bust out a high 9 with the truck this year...;)





Doug...:cool:
 
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