What's the best launch technique for 40 series DRs w/AODE
 

I have BFG 245/40-18 DRs on my 94 convertible w/aode...

I'll be going to the track with them for the first time this weekend. Should I lower them down to about 18psi and heat em up really good for the best launch?

I was trying to launch with them on the street to see if they would hook without dropping the pressure or heating them up and they were getting roasted pretty bad.

I want to make sure I get the best possible 60' times this time around.

Thanks...

Drop them to 25psi, heat them up good, bring your car up against the stall, then drop the hammer when the light turns green.

With 18" tires is it better to not lower the psi as much as you would with 15 or 16" tires?

If you start dropping the pressure too low the tire starts bowing up (rideing on the outer edges) and you won't lay down a good contact patch.


-Josh, aka the tireburner

Cool...

25psi it is then.

Thanks -Tony

You will never hook up for S H I T with an 18 inch tire. The tire has very little side wall and is stiff as hell. If you are truely worried about a good 60ft get yourself 2 spare 15 or 16 inch rims and buy some slicks for the track.

The 18" DRs hooked ok today of at least better than I thought...

I got in 5 runs. Three 2.0 60 foot times and two at 1.9.

My best run went like this:

reaction: .154
60 Foot: 1.98
1/4: 13.66
MPH: 101

I'm hoping to be in the low 13s after I do a cam and intake swap.

I would think your car would be a ton faster.

You're not the only one...

My cam is way to small. I have a xe274hr that's waiting to go in but I have to get a Trick Flow Track Heat first. The car stops pulling after 5500rpms the way it is now.

This is actually 7/10s faster then my previous best....

I've actually had lots of problems with my car but will hopefully in the low to mid 12s soon.