My slicks and bigger axles should be here next week. I plan on running them next weekend at e-town.

What do you guys usually launch at and what kind of tire pressure do you run. The slicks are mounted on 13X8 bogart rims. I think they are mikey t's slicks. I am putting down about 306 at the wheels. I was thinking to launch at like 5500. Is that to low to high?

 

Well, with my old CRX, at around 300hp, on 24.5/8/13's, i would launch on the 2-step at anywhere between 6000 - 7000 depending on how the track was that day... It'll really be a trial and error thing for you though.... each person/car/track is different, and each setup may like something different.

 

I use my 2 step, build about 7-9psi of boost, revs sit at at around 7k rpm and puts down like a 1.8 60ft on a bad day at the track.

Everyone does different things, trial and error works see what works and what doesn't!

 

i launched off the limiter at 8800 with 24.5's making around 300 and had a 1.78 60 foot.

 

Would you say it's better to Rev high rather then low when running on slicks? Then lauch lower if your not hooking up (too much tire spin) or lower the tire pressure. I'm thinking if you don't launch high enough you'll break an axle...

How do other people see this?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtekthis &raquo;</TD></TR><TR><TD CLASS="quote">i launched off the limiter at 8800 with 24.5's making around 300 and had a 1.78 60 foot.</TD></TR></TABLE>

Bounce it off the rev limiter, it's your best bet, or get a 2 step set 100rpm under that.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboChrgd_Civic &raquo;</TD></TR><TR><TD CLASS="quote">Would you say it's better to Rev high rather then low when running on slicks? Then lauch lower if your not hooking up (too much tire spin) or lower the tire pressure. I'm thinking if you don't launch high enough you'll break an axle...

How do other people see this?</TD></TR></TABLE>

Better to launch high than low. Launch RPM doesn't necessarily equate to broken axles, it's how you release the clutch that does it-- especially w/ only 306whp. You're going to want to pre-load the clutch so that if you pull the pedal out any more, the car will start to creep forward. Theeeeeeeennn dump it.

 

Thanks for your replies guys. What tire pressure do you start out around? I have never used slicks so this is all new to me.

 

yea youll be better off starting high and working from there if needed. id start at like 7k or so. tire pressures. like 8-10psi. IMO , but its all preference. find out what works for you.

BTW i just ordered my 24.5x8's today they'll be here tommorow so i should be racing this weekend

 

I have run those slicks as low as 6psi, but try lowering your launch rpm before you take them that low. 8psi is a good number.

 

24.5x8x13 M/T on Lenso's.

2step set at 4,200rpm

i build 10lbs of boost when launching on the 2step and dump the clutch

10psi of Tire Pressure. for some reason i don't feel comfortable going Below 10psi. i think it would be dangerous at high speeds. what do you guys think?

check the track Vids in my sig, the method above is what i used to launch my car altho i had to feather the gas in one of the vids so it does not spin the tire. the rpms dropped alot but i still had a 1.8 60ft in both runs. i got a 1.7 60ft by not feathering the throttle but i missed gears in that run and i didn't get it on video.

 

4200 seems kinda low to me . Didn't it grab hard and bog right away? I never ran slicks while boosted yet, but i used to launch pretty high NA and found a nice spot on my small slicks. Its all preference and driving style i guess. Finding what works for your set up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itr206 &raquo;</TD></TR><TR><TD CLASS="quote">4200 seems kinda low to me . Didn't it grab hard and bog right away? I never ran slicks while boosted yet, but i used to launch pretty high NA and found a nice spot on my small slicks. Its all preference and driving style i guess. Finding what works for your set up. </TD></TR></TABLE>


it grabbed but didn't bog. it did that becuz i let off the throttle so the tires wouldn't spin. 4200 works fine for me as long as i build 10lbs of boost.

 

I used to launch at 6000 @ 6psi of tire pressure.

I dunno who the hell told you not to run less then 10psi , but good luck running slicks on a turbo car @10psi...

 

Ron, have you seen anyone have problem with less than 10 psi on slick without spinning the slick off the rims? I heard if its too low, it tends to spin off the beads so that's why people put screws on them.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SIXTYdashONE &raquo;</TD></TR><TR><TD CLASS="quote">I used to launch at 6000 @ 6psi of tire pressure.

I dunno who the hell told you not to run less then 10psi , but good luck running slicks on a turbo car @10psi... </TD></TR></TABLE>


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Killer B &raquo;</TD></TR><TR><TD CLASS="quote">for some reason i don't feel comfortable going Below 10psi. i think it would be dangerous at high speeds. what do you guys think?
</TD></TR></TABLE>


i never stated that anyone told me anything about running less than 10psi, i just wouldn't feel comfortable.

i also went on to ask "what you guys think", leaving the door open for suggestions and comments .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Killer_B &raquo;</TD></TR><TR><TD CLASS="quote">

i never stated that anyone told me anything about running less than 10psi, i just wouldn't feel comfortable.

i also went on to ask "what you guys think", leaving the door open for suggestions and comments . </TD></TR></TABLE>

Why wouldnt you feel comfortable? people have been doing it for years, i dont know any single person who races that would say such a thing, whats the point of racing at all then? You want my suggestion? Its a waste of time...


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boostedb20vtec &raquo;</TD></TR><TR><TD CLASS="quote">

Ron, have you seen anyone have problem with less than 10 psi on slick without spinning the slick off the rims? I heard if its too low, it tends to spin off the beads so that's why people put screws on them.</TD></TR></TABLE>

Vic, i have never had any problems with it, ever. i know many people that can say the same, However, inserting screws is also another good option that will work

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Killer_B &raquo;</TD></TR><TR><TD CLASS="quote">10psi of Tire Pressure. for some reason i don't feel comfortable going Below 10psi. i think it would be dangerous at high speeds. what do you guys think?</TD></TR></TABLE>

i ran my 24.5 MT's at around 5-6psi. and my 26 MT's at 6-7psi

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SIXTYdashONE &raquo;</TD></TR><TR><TD CLASS="quote">

Why wouldnt you feel comfortable? people have been doing it for years, i dont know any single person who races that would say such a thing, whats the point of racing at all then? You want my suggestion?</TD></TR></TABLE>

actually, i don't but thank you anyway.

considering eveyone's responses, i will give it a try at 8psi.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostedb20vtec &raquo;</TD></TR><TR><TD CLASS="quote">Ron, have you seen anyone have problem with less than 10 psi on slick without spinning the slick off the rims? I heard if its too low, it tends to spin off the beads so that's why people put screws on them.
</TD></TR></TABLE>

I heard this also with people running Lenso's. Not sure if it is true so please don't flame.

The rims I got have bead locks on them I am asumming this will help when running lower tire pressure

 

ive ran slicks soo low that a pressure gauge wont even read without any probs.

 

Run tubes in the slicks, and you can run VERY low pressures... also, you want to use the screws, so that the slicks won't spin on the wheel when you launch... they likely aren't going to "spin off", but they will rotate on the wheel, causing a mis-balance (if you had your wheels balanced), or cause the slick to not be on straight from one side to the other, etc... If you have a bead-lock wheel, you don't need the screws of course

 

what is a good number to run in these slicks without screws? Roughly 350-360whp MT 24.5X9X13's

 

I would make one pass when i first showed up at about 10psi cold (more for vehicle shake-down, and to make sure everything was ok on the car), and after the pass it would go up to about 12psi warm... i'd then lower it to 10psi warm, and make a pass again, and see how it likes it. I'd usually end up at about 8-9 psi warm with no screws or tubes in the tires, and i wasn't having too much of a problem with the slicks rotating on the wheels.... keep in mind, that that goop that they use to install tires can have a big effect on whether the tires move or not as well. If you're not using screws, get some 'Tire Snot' from 'Exotic Toy Builder' (address below) and give it to the people mounting your tires, and have them use that... its some great stuff, and what i used when i mounted my slicks, and i use it on my karts as well.. it dries pretty quickly after use, and seems to help keep the tires from rotating much on the bead.

EXOTIC TOY BUILDER
13563 Cantlay St.
Van Nuys, CA 91405
PHONE: (818) 908-9183

 

Thanks, I will look into that stuff.

 

BTW "slicks with screws" is called beadlock.