Did not do as well as I hoped. Ran 4 times in the 1/8.

First two runs did a decent burn out, too little rpm out of the hole and bogged, ran the NOS and it did not feel very strong. Ran 96 mph both times and finally went over the NOS system and found the WOT switch had moved and was not being activated, so the NOS never turned on. Considering I took 4 degrees of timing out of the motor (approx 10-15 rwhp) and the fact it boged so bad out of the hole 96 mph was not that bad on the motor.

3rd run I decided to come out of the hole a little harder, 3000 rpms and dumped the clutch (no NOS) all heck breaks loose, blows the tires of it, flashes to the rev limiter (6900) I grab 2nd, hit the NOS and WAAHHHHHH, breaks the tires loose. I keep the NOS on and grab 3rd, hit the button on the shifter and the NOS turns off, I feel the car nose over and realize what happened, so I hit the button, feel the car pick back up. For those of you who have raced the 1/8th you can imagine what I was going through when the car went 8.7 at 98.6. It was a ride.

4th run I short shifted the car too much and went 7.8 at 95.

I am learning a lot, since this was only my 2nd trip to the track I feel o.k. These high power stick shift cars are hard to get down the track. I need to lower the tire pressure I am running 275 60 15's drag radials at 20 psi.

I am going to the 1/4 mile track on Sunday to see if I can do a little better. I may pull the sway bar off the front.

 

Since I wasn't able to make it to Irwindale I was really looking forward to your race report. I was hoping to hear that you had run 6.9x's - but still, for your second try at the drags with this combo you are doing excellent. In my mind any time you can drive to the track, make some passes, then drive away at the end, that it is a good day.

Yes, getting a high powered stick car down the track can be a handful. Adding to the difficulty is that the Corvette IRS tends to waste 60' time with squat rather than planting your slicks hard like a well set up live axle suspension.

I know that you want to post some terrific e.t./mph numbers, but I'll suggest that you first concentrate on getting quick 60' times down, and then the rest will follow.

In addition to removing your front sway bar you should install the beefiest rear sway bar you can find. Also, before you drag on Sunday at C-bad or Bernieland I would suggest working on the front end travel. Do the following: place a floor jack under the front center frame crossmember and start jacking up - take note of what is limiting your front end suspension travel. It may be the bump stops or something else. Do whatever you can to increase your front suspension travel. Another thing that helps on IRS drag setups is to NOT have the rear suspension lowered. If yours has been lowered reverse it and you should 60' better.

Oh yeah, the next time you see me I should have the '65 street beast back on the road - the 496 should go in on Sunday :)

Thomas

 

Thanks Tom, I will try those suggestions out tomorrow. I am going to Carlsbad. I am going to try and 60' better and run a little more NOS, had decent traction with the softer NOS combo and too much tire pressure so if I lower the tire pressure if should hanlde more power.

I will post the results, good or bad.