Slicks question

[ed hess]

Re: Slicks question

I could do this with stock stall TC and stock turbo, but I think its hard on the drivetrain. I couldn't bring myself to do this to Sy every trip down the 1/4 mile.

heck yeah its hard on the drivetrain...but hey

it goes with the program...

i mean everything about racing is hard on everything.

there is an exception to this.

whats hard on the drivetrain is when you spin and hook.

the trick is to get into it and say into it enough so that it doesnt hook.

its spining and hook, then spin and hook again thats hard on stuff.

i.e. loading and unloading repeatedly.

ed

 

[dgoodhue]

Re: Slicks question

whats hard on the drivetrain is when you spin and hook.

the trick is to get into it and say into it enough so that it doesnt hook.

its spining and hook, then spin and hook again thats hard on stuff.

That is a good point :tup:

 

[Don W.]

Re: Slicks question

Since they know me at the track I'll have a chat with the starting line crew and see what I do. I've got stock front brakes and the rear brake mod but it usually starts pushing through the brakes above, say, 5# of boost. Might be interesting to try once. :tup: They're pretty good at Infineon, don't think I've ever seen them mopping while someone is doing a burnout. Yikes!

Gotta get the DR's first though... Either that or get the 2 step, real slicks, and switch classes.

Thanks.

 

[ed hess]

Re: Slicks question

Since they know me at the track I'll have a chat with the starting line crew and see what I do. I've got stock front brakes and the rear brake mod but it usually starts pushing through the brakes above, say, 5# of boost. Might be interesting to try once. :tup: They're pretty good at Infineon, don't think I've ever seen them mopping while someone is doing a burnout. Yikes!

Gotta get the DR's first though... Either that or get the 2 step, real slicks, and switch classes.

Thanks.

don

if you have 2 sets of large shoes and 7/8 wheel cylindrs on back.

then add line locks on front and rear circuits and 2 step, also think about rear prop valve bypass, look in tech article of vault on this, and you will be getting a lot more boost sitting still as you will have probly 2x the brake pressure.... you wont beleive it.

i tell this to many but not a single person ever follows up and does it the way it works.

imagine sitting still at 15 psi effortlessly and then letting go of the button and letting it rip.

btw the 2 step is only used on the starting line, you will hit boost well before you hit the higher 2 step setting if you do this corectly.

ed

 

[sy2675]

Re: Slicks question

I agree with dig, make sure to tell the lane guy to stay out of the way, Muncie dragway has a short lane from burnout to staging, have to blow thru them with the SY, after the first guy walked out in front of me they got out of the way the rest of the time. They assume if the rears are spinning you wont be moving forward too fast, let off the brakes and then the fronts pull and they start to scatter.

 

[Don W.]

Re: Slicks question

don

if you have 2 sets of large shoes and 7/8 wheel cylindrs on back.

then add line locks on front and rear circuits and 2 step, also think about rear prop valve bypass, look in tech article of vault on this, and you will be getting a lot more boost sitting still as you will have probly 2x the brake pressure.... you wont beleive it.

i tell this to many but not a single person ever follows up and does it the way it works.

imagine sitting still at 15 psi effortlessly and then letting go of the button and letting it rip.

btw the 2 step is only used on the starting line, you will hit boost well before you hit the higher 2 step setting if you do this corectly.

ed

Yes, rear brakes are built this way. Will look into the prop bypass valve. And yup, I know how the 2step works. I was actually thinking of getting the adjustable one:

http://www.msdignition.com/rpm_5.htm

Thanks for everything Ed.

 

[NOJIMMY]

Re: Slicks question

BTW since you dont have disk brakes on the rear, you may want to eliminate the c clips so
axles dont come apart using stickier tires. Ed can tell you more (especially if your planning extensive burnouts).

-Larry

 

[It's just a six]

Re: Slicks question

I can hold my brakes to 5,10,15 or more PSI & I still only see 2100 RPM on my converter.
I must have a really tight one

 

[typhoon92]

Re: Slicks question

Don
If your thinking about buying some drag radials.I have (4) Mickey Thompson 255/50/16 ET drag radials on stock wheels that I'll sell you! Tires are almost brand new!
Pm if your intersted

 

[Don W.]

Re: Slicks question

PM sent.

 

[George Blake]

Re: Slicks question

YES. Finally someone puts it out there how you break stuff. Loading and unloading repeatedly. Sounds simple but guys still do it. A TH400 or 80e will essentially be doing a "neutral drop" if you spin it up and then let it "grab" 2nd. They WILL bust sprags that way. Get in it, stay in it. I've watched Frank do it really well. Everyone liked the NHRA sanctioned burnout (20 or 30 yards long). But yeah, getting on it and letting it hook WILL break stuff.

heck yeah its hard on the drivetrain...but hey

it goes with the program...

i mean everything about racing is hard on everything.

there is an exception to this.

whats hard on the drivetrain is when you spin and hook.

the trick is to get into it and say into it enough so that it doesnt hook.

its spining and hook, then spin and hook again thats hard on stuff.

i.e. loading and unloading repeatedly.

ed

 

[alwayscode390]

Re: Slicks question

I couldnt get my MT ET's off the rear of my z28 for a month ... and ran them to work and back ... in the rain or sun (800+ miles). They still look brand new , even after a night at the track.

They are not safe by any means on a rwd only car , but with the front tires helping you ... I wouldnt worry a bit ---

 

[turbodig]

Re: Slicks question

Since they know me at the track I'll have a chat with the starting line crew and see what I do. I've got stock front brakes and the rear brake mod but it usually starts pushing through the brakes above, say, 5# of boost. Might be interesting to try once. :tup: They're pretty good at Infineon, don't think I've ever seen them mopping while someone is doing a burnout. Yikes!

Gotta get the DR's first though... Either that or get the 2 step, real slicks, and switch classes.

Thanks.

You'll like the Mickeys.... of everything we've had on the GN (Hoosier, BFG,Nitto, M/T), the Mickey DRs work the best.

Do the neutral vacuum thing in the bleach box... with your fronts out of the box, you should be able to get more boost than that. 7/8" cyls in the back help a bunch, too.

You'll also find that with the burnout + DRs, you won't see the line push as bad.

 

[syclone1100]

Re: Slicks question

I going with the hoosier QTP's I have two friends running them here in Vegas. 1 is a 600hp turbo comaro running 10.02 @ 135 with a 1.4 sixty with a small burn out and the other is a 600hp+ AWD DSM running 9.4 @ 145 with a 1.4 - 60 no burn out.. Here is vid of the DSM..

http://videos.streetfire.net/video/c3f88126-4673-4cba-b773-9a5b00e2087e.htm

 

[James Thomas]

Re: Slicks question

Don't know about the Hoosier's but the Mickey's are good tires, so are the M&H's even though they don't get a lot of play. They are real under rated tires and don't play into the "smoke & hype" advertising wars of the other larger name brands. The BFG's are better than the Nitto's IMO for an around town driver but they ALL suck pretty bad in the rain.

________
James

 

[Tooky]

Re: Slicks question

I think burnouts (and the tires that require them) are a bad idea.

The few SyTy'ers I know who do burnouts before a run, are also the same guys who seem to have the most transmission and drivetrain failures. IIRC, I witnessed Mark Larson snap his transfer case chain at the KC Nats during one of these burnouts on Dig's weld/hoosiers. He went back to Minnesota on the trailer. In my experience it would take a lot of power to spin a SyTy's tires enough to heat up the tires and clean all the water off. Any time I've tried "cleaning my tires off", it felt like I was beating the shit out of my truck and extremely harsh on the drivetrain. Ed Hess snapped the output shaft on a TH400 (correct me if I'm wrong).

I don't know what kind of tracks you guys race on, but the ones I've raced on, you can never tell exactly what's going to happen with your tires until you try. So it's not a matter of "Just don't let them chatter." It's a matter of, you give it a shot, and sometimes it will spin, some times it will chatter violently and the rear axle wraps up and loads/unloads. The only way to avoid it is to not do burnouts at all. :2cents:

I have heard that BFG DR's and green dots are both soft enough to hook without a burnout. I don't know anything about the "cold hook" of the M/T ET DR's.

 

[sy#2921]

Re: Slicks question

Josh, since we race at the same track, what do you run for tires? also what kind of steps do you take before a run?

I have had good luck at GLD with street tires that werent old and hard and also BFG DR's with no burnout. I drive around the water, dryhop to the line and go for it.

 

[Maverick87]

Re: Slicks question

The simple thing to do is to put in the 4x4 passenger side axle and tube, the cable and then be able to do all the burn out you want. Then put it back in awd and run. No worrie about chatter or hitting some dipshit that steps out in front of you.

 

[ed hess]

Re: Slicks question

The simple thing to do is to put in the 4x4 passenger side axle and tube, the cable and then be able to do all the burn out you want. Then put it back in awd and run. No worrie about chatter or hitting some dipshit that steps out in front of you.

maybe you missed what i said above.. but if someone steps out in front of you at the line it should not matter. (btw if they are a dumbass and the guy manageing the burnout box allready gave you a thumbs up...)

when you let go of the brake at full throttle and it begins to spin. you are almost imediatley off the thrttle and back on the brake.

done right you will not move very far and should be only halfway at most from where you started to the the line. you are not even close to doing a burnout across the line.

ed

 

[Silly]

Re: Slicks question

Josh, since we race at the same track, what do you run for tires? also what kind of steps do you take before a run?

I have had good luck at GLD with street tires that werent old and hard and also BFG DR's with no burnout. I drive around the water, dryhop to the line and go for it.

GLD is a junk track, you will hook better outside the gate on Highway KR or whatever its called.

I put my truck sideways on 4 nittos at GLD.