Lowest Safe air pressures for drag racing on Drag Radials
- Thread starter prostreeter600
- Start date
Noted on the traction bars , and my shock adjustments in the rear were set in the middle . I tighten them all the way so that it's harder to compress them . I moved ladder bars to bottom hole in the front .
How much air pressure Evan ? Is he running a stout coil over in the front to control front end rise ?
In my opinion going from just rears to all 4 corners on a heavy truck is a completely different ball game. There is a lot of weight on the nose of these trucks.
I was agreeing with Trojan . No pun intended . Just trying to get better 60' times to get a better 1/4 time slip and hopefully up my MPH as well .
LMAO .. I had Mark update my tunes since that run because it ran so clean . I had him out more fuel to it . If I can get it to 60' better it should go high 9s on fuel only . Then I have spray for it too .
My truck has a bunch of goodies since my last pass. I just can't find time to get it to the track!
I hear that . I have been on 6 --10hr work days for 3-4 weeks now . Hopefully on the 28th of this month
I run 28-30 front and 20-22 rear on the 30x14. Someone correct me if I'm wrong, but moving your bars down would be putting more lift to the front of the truck.
What is your 60's like? you run a bit more air than I do, although your truck is a bit heavier than mine (I think)
moving the bars down amplifies the pressure put on the spring pack in the rear end. like adding more spring rate to a suspension setup. it can add more front end lift depending on how the shocks front and rear are set up. basically, it should make the rear tires hit/bite harder if everything works as it should.
Keep in mind I run ladder bars with coil overs in the rear , no leaf springs & coil overs in the front no torsion bars . As stated above moving the ladder bars to the lowest hole at the front of bar is suppose to provide the hardest hit most down force to the tires . I just made that adjustment and tightened the rear coil overs to their tightest setting . Adjustments were made in an effort to get a harder hit more down force to rear tires plus the tighter setting on coil overs is to where any weight transferred to rear all goes to the tires instead of getting absorbed in the suspension where the gap closes between top of tire and wheel opening . I plan on taking the truck to Emmis Tx on the 28th for a Fast Friday Event . I will be running lower air pressures as well , leaving tailgate, passenger seat and center console at home this time . Surely that tailgate being on and having it up increases the wind drag on the truck since I don't have a bed cover and don't want one . Hoping for 1.5s 60' and at least low 10s on fuel only . Had Mark put more fuel in tunes as well since that 10.66 was super clean .
Harbin are you thinking that having the ladder bars hit harder is helping my front end come up ? Which is obviously not what you want in a 4x4 launch .