none that I know of. the upper I have is advertised to have grooves in it to prevent some belt slippage. But I dont hear any.

Jake I will try the 2nd gear burnout, i tried 1st and didnt like it at all. So the 2nd time I left it in drive and only got the speedo to like 40 at most. I need to to like 80 i think to warm them up enough!

wydopnthrtl i am going to get a reburn, and hold off for a cooler day til I head back. Even at 9:30 at night it was still 80.
Untill then with the added boost and all the mods, I have to sit it out and watch on race day? Or is there a supercooler or an electric fan i can get that may help with this?

Thanks, Shane

 

The temp and humidity were huge factors. Also, I lost 2 mph when I used 26" tall ET Streets.

As for the tail wagging...I had that same problem, but figured out what I was doing wrong. When you first start your burnout, make sure that you keep your foot on the brake firmly and the truck does not inch forward. I have found that if my truck inches forward when I first start my burnout, I will end up looking at the spectator seats.

 

yysenhimer,

Thanks for the tip. I will pay attention to that from now on.

Jake...

 

I'm starting to see a reduction in ETs and mph based on humidity. Both in my L and in my probe turbo. I just can't say how much yet?...

On the burnout I:

back into the center of the water then pull fwd out onto mostly dry pavement. (selector in 1st gear)

Then easily power brake w/partitial throttle to about 3,000 rpms. (The tires spin very easy here)

move the gear selector into second, once it's shifted I put the throttle down to achieve 4,000rpms. Right at about this moment the tires are starting to grip/smoke lightly.

Hold it there for about 2-3 more seconds til I see a fair amount of smoke rolling / the front try lift a bit / you can hear the motor loading / and it's taking more and more throttle to keep it at 4,000rpms.

then roll up to the line w/o any dry hop.


Doing this I feel I've not burned off too much rubber and can still make it stick good off the line.


If anybody else has any tips? I'd appreciate it.

WOT

 

Rob, what pressure do you run your slicks at @ the track? I was told to put my et streets all the way down to 12-14psi. Should I try 16-18 next time? I think I gota get my warming up the tires down. I can read all I want, but when I get out there it is so different. The advise does help though, it will just take time.
I want to run once with the F1's and see if I can run better, then it is me not warming up the slicks and they are actually hurting me.
As for the chip, i did have timing taken out when I got the upper pulley so you may be right, sacrifise timing for a pound of boost = lose in et. But why did I almost lost a second even after the mods? I was expecting to run a 12.30-12.40 and I ran a 13.30 and a 13.40. Can a whole second be in the chip and the launch?
I am getting a reburn with a little more timing and some more stuff done to it, so i will run once more with the 2.80 upper and decide if I am going to keep it or not. If that falls through, i will either get a 5-6# lower or just go back to 4# and try to get back to where I was and go from there. Any more advise I'd appreciate it. thanks, Shane

 

Shane

WHAT TIMING DO YOU HAVE ???

No reason AT ALL to take timing out for more boost.
What you want to do is make it richer because now you are taken in more air due to more boost (pulley)

I actually always have my chips tunned for 2 lbs more of
Pulley "than I actually run" just to make sure it's richer,
There was no reason to take timing out ???

I now run 18 degrees 24/7 on the street and use the same program for racing the 1/4 on gasoline.
I use 16 degrees for Nitrous Runs and Long WOT Parkway Blast.

BOTH ARE SUPER SUPER RICH
See


That picture is with 22 lbs of Air and I drive to the track like that.
My burnouts are low RPM and they hardly smoke at all


Even with juice at the Launch I still manage 1.6 60ft times
AND NO SPINNING AT ALL, and thats leaving from an idle and just punching it.

I do wanna try less air (@ 16lbs next time) and get it down to 1.5 60 ft times, But I truly believe your trouble is TIMING

 

Soap told me to keep them at 18psi. (26.5" ET streets) And so far I've found this to be right on the money. (for the only track I've been to with the Lightning)

WOT

 

Rob you run 22psi at the track in your tires!!!!!!!!
22psi cold? after a burnout my tires increase presure about a pound and a half. danm I need to try some more psi, I was runin like 13psi

 

rob i think my timing was brought from 18-19 from my diablo to 16 if not less on the superchip.
You said I can run 18 or so even with the upper? Just make sure it is richer than it was with just the 4# pulley? Does richer=slower? but it is safer right? say burning a chip for a 6#er and only using a 4 should be a safer tune than a burn for a 4 and running 4... right? what im looking to do is fine an agressive program I can run 20% of the time and then be on the street side the remaining time. I think the race program I have now is nothing more than a tuned up street program.
So I am going to send it in for more timing, anything else I need?
Also how much of a loss in power should I see if i dyno'd with current mods, with 16 degrees of timing one pull and then 18-19 degrees after the reburn?
I am just curious for the lose in et yesterday if most of it is pointed to the pull in timing?

As for the tires, i will try them at 16psi next time, and work on warming them up better each time out there...

thanks again, Shane

 

i am going to try that 16-18psi. thanks, shane

 

EXACTLY

Each and every one of my programs has ALWAYS been burned for more boost than I run. Although exhuast tips don't tell the full story, mine CLEARLY show how rich I'm running, SUPER RICH.
So to answer your questions

Yes by having it burned for 6 and only running 4 you are safer.
(I only run 6 in the hot summer months on the street) like now
(I race with 4lbs and use only 4 for the cold winter months)
Yes you give up a LITTLE ET, but I rather be rich than lean.
IT-22's are 2 ranges colder but NEVER load up, and idle great.
My ET's suck and I have no top end under 16 degrees.

Although I've yet to race gasoline or Nitrous with my new and improved 18 degree timing programs. With 16 degrees of timing I have so far backed up 12.7's on gas, 12.8's on gas, 12.0's on juice, and 12.2 + 12.3 on Juice. With the lower timing program I JUST GOT RID OF, 13-15 degrees, I ran 13.0 on gasoline, and 12.5 on juice. 3/10ths worse on gas, 5/10ths worse on juice.

Considering the rich tunes I run, for a filter-chip-4lb-n-accu fab L with NO tranny mods, NO exhuast mods, NO fans, NO cool downs, NO suspension, NO heat exchanger, etc....
I think thats pretty dam good.


I truly believe all our L Brothers in California that can't even run 15 degrees of timing without detonation is due to too hot a plug, and too lean a tune --> NOT too much timing
Our L's will take a lot of timing WITH THE CORRECT A/F

 

Thanks for all your help. The conclusion i've came to is I need to work on my launch and warming up my tires. (can I practice that on the street with the slicks and a little water or what?) Also my chip is in for a reburn to increase timing and adjust the air fuel stuff. Then I will try to run with the new program on the chip, and when I learn how to drive with the new tires. If my 60 foot times are down where I want them 1.7s or so 1.8 at MOST. And the chip is burned correctly I should be back into the 12's. Anymore advise I'd really appreciate it. Otherwise thanks again for everyon's help.