StraightTimeStirrups

I have to say that it's not as easy as it looks! I made 5 passes and botched everyone of them up in some sorta way but I still had fun! The main thing that was jacking me up was the trans brake. I was thinking it wasn't working when I would engage it and when getting on the throttle the car would feel like it was rolling a bit (inch or two) but my friends said that was a normal sensation. It was jacking up my reaction times thinking something was wrong so the last two runs I just left after the car next to me left.

I got one great launch but I thought I broke something so I backed out of it and pulled off to the side in case I was spilling anything but all was fine, better safe then sorry!

I will go out to get the time slips later but I am curious to see what times you guys guess I should be able to do in the 1/8 and 1/4 miles with my setup. Everything done to my car is in my signature.

Tried to update Signature but it's not working. 3800 RPM Stall and MT Drag Radials 255/60-15 on 15-8 Prostars. By the way, first 3 passes tires at 35psi last two @ 25psi and I spun on all but the one with the great launch!

Joe

moge11

8.48@81 provided you got a good pass. if you say you kept messin stuff up, then low 9's high 8's

StraightTimeStirrups

You are so close its scary, lol! My best was 8.95 @ 82mph with a 60' of 1.957. But I spun on the launch and had to back out a bit to regain traction. I think my best 60' was around a 1.8* but I cant find that time slip. The next best one was a 1.93 but I spun on that one too. I will lower my tire pressures next time out as I was WAY over pressured as I didnt know what to run and since my friend didnt have his trailer with air with him I couldnt air down the tires as I had a 30 mile drive home to do!

I really think if I didnt screw up so much the 8.50 range is completely doable!

Joe

Joe

moge11

itill go 8.4x-8.5x when you can launch it off the brake and 1.6x 60'.

StraightTimeStirrups

In the 1/8 mile, my car has run an 8.90 @ 83 mph with me screwing up each launch 1.90 so far (learning to use Trans Brake, Staging, Burn Outs etc. Basically first time down the strip ever with any car and I have only made 5 passes with it so far. I was probably shifting at about 5700 to 5800 RPM so I know I have a lot of room to improve my time/speed.

My guess is that with me doing things right, I should be able to get to 8.40 to 8.50 no problem.

I currently have the stock gearing of 3.23's in the car and I am going to go to 3.73 to 4.10 in the rear with probably a 3.90 as my first choice. MT 255/60-15 Drag Radials are on the car now. I have a Continental Converter that stalls around 3800-4000 RPM.

So here is my question in a nutshell. As far as gearing/tires go, would it be best for me to find a Gearing/Tire combo that allows me to go through the traps in 2nd Gear on my Turbo400 RMVB transmission or should I pick something that has me shifting into 3rd before the traps? At what point, does a shift cost you more time/speed then just keeping it in a lower gear?

I know that each car and situation is different but if you guys can share your experiences with your cars specs with comparisons of this situation it would help me and others decide what to do!

StraightTimeStirrups

In case some dont understand what I am trying to say let me clarify.

Which Scenario is better in your experience?

Gear/Tire my car to go through the traps at say 6200 RPM (Redline example) in 2nd Gear?

Or

Would I be better off going to a lower gear (from 3.73 to 4.10) and reach 6200 RPM in 2nd Gear 100Ft from the traps and shift into 3rd Gear?

I want to know how much time/speed it costs you to perform an extra shift!