Its all how you let the clutch out...

 

I agree 100%

Thanks for all the tips. I dont post too much bit I do read and learn.

Looking forward to taking my 8 RS to the track. It is almost ready.

bren

 

Question for you.... would I be better off trying to build MORE boost at a lower engine speed or run less boost at a higher engine speed for the launch? Previously I've done 10psi from 7200 and ran a 1.7 I did 10psi for 7.8k and it did a 1.6

What I'm thinking is that I'm getting a good 60', but the way I'm doing it is hurting my 330 time. My thought out solution was to run 20psi on the line at a lower RPM like 6k and not slip the clutch as much.

Any input on my thoughts? Also... I was able to get the spool (anti-lag) between the shifts with a lot of timing retard and more fuel

 

Most wanted: Here are my passes from yesterday. Starting from first pass to last. Tell me what you see. 2 step is set at 5500 anything higher i spin much more than what i already spin. #1048 on the slip

 

you are right there. Its the 60' that is hurting you. If you are spinning with the 2 step at 5500 there is another factor. Whether it be a cold surface, poor track prep, running through water without a burnout, letting the clutch out to fast, tire pressure too high, etc. 115 mph is good for 11.50's no problem. Just work through it. Start with the little things and make small changes. Make notes of your 1-2 shift also. A good idea if you can get it done is to buy the Buschur camera mount and video the run. Then you can go home and see whats going on. I have learned alot from watching my videos.

 

Thank you. I'll be going back to the track and make adjustments. This curse of 12s is getting to me lol im shifting at 7200-7300 1-2-3-4 shifts. Should i be shifting higher?

 

No that should be fine.

 

ok here are my runs from first pass to last.





This was with 2 step at 6100rpm


Then back to 5500rpm

 

Whoa, wut?

115 is 12.1 to 11.9 range. 118-120 mph is most often seen in the 11.5s.

 

Not with Most-Wanted driving and one kickass launch technique I agree with you for the average guy though. 115 is usually good for very high 11's for most.

 

Thanks Jack of trades for the

HMMM, funny you say that. This was back in April of 2006 Way before I knew anything about removing bumper supports etc. This was a basic Buschur stge 2 in a full weight GSR. Only thing removed was tire junk and passenger seat. This was my post...

.....now that the car is so perfectly dialed in thanks to Buschur Racing and Dynoflash, it has given me the opportunity to better myself without paying so much attention to the car. Last week I had a .004 reaction time and tonight I got two perfect lights. One was a .002 and the other was a .000. Here's what the slip looked like.

r/t .000
60' 1.623
330' 4.812
1/8 7.500
mph 89.96
1000' 9.801
1/4 11.746
mph 113.85

I've done hundreds of mid 11 sec passes with mph around 113-117. Here is from another night. Keep in mind this car had stock TB, stock intercooler, stock cams, stock head, stock everything.

r/t .280
60' 1.655
330' 4.815
1/8 7.477
mph 90.86
1000 9.774
1/4 11.713
mph 114.32

r/t .004
60' 1.655
330' data missing
1/8 7.512
mph 90.58
1000 data missing
1/4 11.758
mph 114.32

And for your viewing pleasure
http://videos.streetfire.net/video/7...6615A316EE.htm

 

Boy this dialing in business is so damn hard. Next i'll try some drag radials and up the 2step to 6100 again.

 

Yeah, it takes time. But once you get it down it will be awesome and consistent. Thats why I am trying to help out. I have hundreds of passes and this is just what seems to work best for me. Obviously every car is different , mod path differences, and driver ability. But its a starting point.

 

Question for you.... would I be better off trying to build MORE boost at a lower engine speed or run less boost at a higher engine speed for the launch? Previously I've done 10psi from 7200 and ran a 1.7 I did 10psi for 7.8k and it did a 1.6

What I'm thinking is that I'm getting a good 60', but the way I'm doing it is hurting my 330 time. My thought out solution was to run 20psi on the line at a lower RPM like 6k and not slip the clutch as much.

Any input on my thoughts? Also... I was able to get the spool (anti-lag) between the shifts with a lot of timing retard and more fuel

I've also heard from a few people that i should set my launch rpm to the rpm that I bog down to.

 

Ive seen you meantion a few times that its all in "how you let the cluth out". I was wondering if this holds true as well to people running Twin disks? I havent really had all that much sucess finding a proper way to slip the clutch ever since I swapped over to a twin, it seems to either just be engaged or its not, which has been causing me to either spin horribly off the line or bog instantly from having to preform the 1-2 shift far too early.

Is there a recommended way you would let out a twin disk most wanted?