Any idea as to how bad it would be to holeshot in 4hi and switch to 2 hi quickly? anyone race? tips?

i am going with a buddy and he wants to go heads up and he has a beast dodge. lots of mods, sadly i helped him install a bunch of them


thanks guys!

 

i dont have 4x4 but if i did, i wouldnt switch it. i would just launch in 2wd.

 

4x4 launch ftw Dave. Burn up all 4.

 

there is no way i can do that. i spin for days it seems..



Jake,

 

once my oil cooler and egr delete are done im going to be getting a tune from matt at gearhead (probably a version of his SRL) and ill let you know how that one is. its supposedly hard to even 4x4 launch with it

 

I used to race my 08..I made about 25 passes in the truck with a best of 12.81@102 and 1.7 60 ft consistently with only intake exhaust and tune.
the only thing you really need to do is drop the pressure in all 4 tires and make sure your hubs are locked

put it in 4 hi and leave it there. Build a little boost at the line and just go! heres some vids so you can see my method...

http://youtu.be/jyaFyqBhCvY
http://youtu.be/BYnYzo1iis4
http://youtu.be/72n8SsLaiCw

maybe this will take you to a list of track vids
http://www.youtube.com/user/SLWSVT?feature=mhsn#p/u

 

fwiw my last set a tires were 35" trail grapplers and those things would stick to the ground in 2wd! In 4wd I could launch on the street and do 0-60 in 4.5 seconds! I suppose I was pushing between 550 and 600 to wheels and about 1200 ft lbs...it was like a drug for awhile...4hi launches were

 

hows that compared to the lightning now?

 

I don't know because my Lightning isn't completed...you can't beat the feeling of grip and go on the street with 4hi though...well we'll see lol

 

IIRC, even if you do switch out of 4wd under full throttle it won't shift out until you left off.

just leave it and shift back into 2wd before you turn around at the end

 

well i did just that. stayed in 4wd and loved it.. forgot to lock the hubs on the first run. wheel spin in the first 3 gears.. the 8 other runs.. 14.8 at 89 mph. my RT needs a ton of help but i had a blast!! 8025 pounds at the scale today.

 

Not bad, I'd say it has more in it. I was running 14.6 @89 on 37s with a race tune with the stock turbo and injectors. 8300lbs race weight. That's launching at about 15-20psi in 4HI of course.

 

what tune are you running now? you had an edge a while back didn't you?

 

the sad part is that a 05-09 Mustang GT runs those times in the 1/4 when stock

really wish we had a track out here. I'd love to see what my truck would run

 

i agree, one word... Tranny..

it slips.. 125K miles on it and it was a tow rig before i bought it. you can hear it in the video.



http://youtu.be/SuZnvuogrCU