I'm not trying to be rude.. but it doesn't matter what your engine is making peak HP. It's all about the area under the curve.
Especially at lower RPMS, such as a launch. Check your previous dyno sheets, with an updated one and compare the power you are making down low.

Also, Everyone here seems to think a FLAT A/F line over RPMS is the best. It simply is NOT! It might be the safest, but not the best.

At low RPM's you can be lean, remember it's a combination of a/f, timing, engine speed, air density, etc... that factors into detonation, causing the a/f to prematurly ignite. As the RPM's go up, your a/f curve should obviously come down.

Launching, If you aren't spinning, you don't have a traction issue. plain and simple.
There is no such thing as too much traction. For some reason, beit mechanical, skill, or programming your truck doesn't have the power to pull a short time.

Here's something to think about.
I ran a 12.5 at 110 with slicks.
Then I ran a 12.7 at 110 with F1's.
(back to back, same day, same track)

I did notice removing the front sway bar helped ALOT!

 

Whip, with my similar combo I found the 60' times greatly improved with the more aggressive tune. It will really wake the truck up.
Jim

 

Your right on. Both my street and race tune are "leaned out" up front. I have definitely see the benefit of that on my 60ft

 

His problem is tires plain and simple. Bet my life. Swap tires with someone and let it rip and you will see.

I bet you a round if you ever come back home you bum!!!

 

both of my 01's always cut good 60's

running 11.8's to 11.9's , i always cut 1.61's to 1.63's with no converter,

only susupension mods on both trucks were truck traks and thats it

i will be trying out my stall pretty soon, hoping to go 1.5's

not trying anything else with the suspension yet though, truck in it's natural state seems to hook good

sometimes i'm thinking everybody is overthinking our suspensions

heres my 11.82 run, just squats and goes

right click and save

http://www.new-used-ford-cars-trucks...m/beef1182.mpg

 

I dont know about that,I run caltrak's and the same tires he is running and I have a bunch of 1.5 60's oh and i still have 3.55's. beef, when you launch your truck do you bring it up on the converter or just mash it from an idle?

 

I do, because I've had these same tires on my truck. Never cut a good 60 with them. Not to mention they have some years on them now and have traveled all over.

Hoosier 28 x 10 x 16, C07 compound. That's what you want.

 

with the stock converter, i have always just mashed it

 

Whip 373s and a convertor will make a world of difference. With all the power you are blowing through your convertor, its got alot of life on it a new stock convertor will do a better job but you got some miles on yours. I would think you would see consistent high 1.5's-low 1.6's with gears and a convertor.

JimIII

 

I GOT a new convertor you Bum!!! Check out the pics that JULIE sent me of my truck....like prego.....its in there!

Thanks for all the help guys. I have a few things I'm going to try this weekend. First...my hot street program. Next, more air. Last...leaving at different rpm's.
Don...I have no doubt these tires are hurting me. Unfortunatly working 7-730 7 days a week doesn't give me much time to get some new ones. That will be about a month.
I'm undecided about the front swaybar. I would like to try it...I just don't have the time or place (living in a hotel) to do it now. Anyway...I will post results on friday night or saturday morning!

 

Whip,

Stay with your 3:55s. Pulling 1.5X 60 foot times will not be a problem with a good preped track. Most of the time when you go to a track with no events scheduled other than the normal test & tune the track is crap. During a major event(s) track will get real sticky.

I'm running 3:55s and until I added the turbo 1.5X 60 foot time were real common, however now that I added a couple more "toys" we will have much better 60s, much better....

Main thing is work on your launch and don't worry about trying to cut a perfect light till your 60s improves.

 

Front sway bar, takes 10 minutes max. Best if you have ramps to pull up on, unless you can squeeze btween the ground and the front ground effects.

 

I respectfully disagree. In his first thread he mentions that he does not spin at all. SO it appears there isn't a traction issue, but a launch technique/power issue.

 

Watch what happens when he swaps tires. I have PERSONALLY RUN THESE SAME EXACT WHEELS/TIRES on my truck.


Watch what happens when he puts on a set of full hoosier slicks and launches a little higher....

 

Lots of good info here that may help me and others too. What about launch tecnique? Should I sstall it up high? Hammer down on launch? What do you guys think?