the best time out of my three passes was a 14.68 @98.110 in the 1330. that was a 2hi launch from an idle it spun second and third not bad i dont think. ill probably be doing some tuning and see what i can get it down to.

 

Why weren't you launching in 4hi? And why didn't you build atleast 4-6PSI boost, that would cut your E.T. a fair amount...

 

its spins terribly bad with boost in 2wd and i dont have billet shafts thats why i dont leave in 4hi

 

My buddy launches at 40psi in 4hi and has only broken 2 output shafts .

 

i thought 4wd was only for trucks running 13's and down.
wont it do a slower time if you use 4wd when you dont need it?
you'd think it would....

 

I would use 4hi on any truck, my old '99 with an ez on it would break them loose without much trouble. tire slip=slower time. but my buddys truck runs a 12.6(daily driver)

 

i use 4hi on my truck when launching and threw 4th to keep from breaking loose, then i just shift out before i hit 5 and 6. i do have manuel shift transfer case though. i run better times like that then just in 2wd.

 

-------------
b.lee:

Leaving the staging lanes in 4WD High will help any truck get a better time regardless of how slow or fast they are. I don't neccessarily agree with the notion that leaving the truck in 4WD high slows a truck down that much as I have it done it both ways and have almost always been within 1/10th of a second either way. However, with that being said, on all my trucks I launch in 4WD High and then AS SOON as my trucks hit second gear I slide my transfer case from 4WD High to 2WD. Here is a video link for you to watch on how I do it at the recent "Outer Banks Bounty Hunter Diesel Drag Races"
in Creswell, N.C. from a couple of weeks ago:

http://youtube.com/watch?v=FH05ByEyuEc

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John_P

 

john....Why didnt u tell somebody you switched to 2wd. I didnt know that......ps. I ran at North Eastern strip last night. but Im not going to steal the thread.

 

CHET:

Sorry buddy, I thought you knew that. Call me and let me know how you ran! Are you coming to MATR next weekend??

--------
John_P

 

mine does 16.2s with a 2.3 60 foot in 2hi.
15.6 with around 1.8 60 foot in 4hi

 

98 mph is well into the 13s with a boosted launch. But be careful of those shafts. Not all shafts are created equal.

 

I think you would be safe doing a 2-5PSI launch in 4hi, just by doing that you will knock a bunch off of your time. Regardless it's still a better time than my truck! lol

 

Yeah. Don't try and 8psi 2wd launch. Last time I did that it spun all the way through 3rd. Went from a 14.6 to a 15.8.

 

yea im going to be doing a little more tuning and co back and see waht i can muster up sorry but my computer has been down.