machinehead

Well, this was my 2nd time at the drags and I did better, but not near what i was hoping for. I see all the these time slips and i am wondering if all the 12 sec and better runs are with slicks or drag radials or if any of them are on street tires? I know I have the power to make a good run but even when i ease off the clutch my wheels are just spinning and I am going nowhere. Even in 3rd gear when i nail it hard my tires are just breaking loose. What is a good run with street tires? And how much of a difference can I expect with a drag radial?

thejersey7

ive got yokohama A032R road race tires they hook up awsome of course there alreay soft to begin with. I pulled out a 12.1(if i hit nitrous they'll kick me out for going to fast w/out a roll cage)

ZoomZoom

iTrader: (2)

Ok So what tires you using? I hook up well with S-02's. But I cant dump the clutch. Grabs well in second @ 13psi.

machinehead

I have the A520's.

ErnieT

iTrader: (2)

You need to post your 60' times. Too generalized of a question. Usually you can get .5 of a second better. It all depends on how well you drive.

machinehead

60' times are about 2.4

ZoomZoom

iTrader: (2)

Take some advise if your going to buy some R compound rubber. Dont bother with Roadrace or autocross rubber. Dont mess with BFG Street Slicks, Dont mess with Nitto 555R, No Street tires or DOT street slicks. Get some good ol slicks. Yep the big ugly nasty wrinkle wall no sidewall having rubber. Bag em or have a freind bring them to the track and put them on there. Sure you will need an extra pair of wheels but it will be worth it. With all the power your making you dont want any sidewall as to avoid wheel hop and the associated probelms with wheel hop. Get some MT ET's. Its what Ari was using before they changed the rules for his class. Now with the street slicks he gets mad wheel hop and problems like Broken axle shafts, Broken Differentials, Broken Power plant frames. Sure its a hassle to change out tires at the track. But if you want good time slips and less damage to your car the Standard race only slicks are the way to go. The side wall will absorb the vibration instead of turning it into damaging wheel hop. Of course I will admit its kinda scary when it feels like the rear is wobbling around back there because of the weak sidewall. I actually drove to a street race with them on once. I was sweating everytime I went around a corner. It felt like I had some Mad rear wheel steering. LOL.

thejersey7

so no arguing with that there is really nothing like true slicks i ran them once and there is no slip what so ever and almost no wheel hop but the A032R's do grab increadibly good

machinehead

Well, i opted for the Mickey T ET's, 26X10.50x16 They look about as close to a slick as i have ever seen.... now I just hope I don't break something!
The guy said I can run them with tubes or without, any recomendations? What is a good psi to run them at? I don't need screws at 360RWHP do I?
Thanks,
Cliff

West TX RX-7

try about 7-10 psi. You shouldn't need screws. Have someone tape your start and put some white shoe polish on the tires in a line from center straight out. It will help you see if it's spinning or not. What year you running and what suspension you have? Too stiff in the front or rear can hamper the start. You want some weight transfer. And if you've been burning out in the box on street tires your making things worse. I always drive around it. There is usually plenty of traction there from the rubber and compound layed down by previous runs. Thats anopther thing if you want to try, get a friend to put down some compound on the other side of the box and do a LITTLE burn out in it, just enough to activate it. I don't use anything have never had a problem at launch. 87 TII, I launch at 5k rpm. Running Nittos now. Just got in some BFG G-force for autocross. They are supposed to be pretty sticky but i'm not gonna drag with em. I'd like to make the season through with em.

peejay

Norwalk has tons of slick-tired cars leaving rubber on the track, and they spray the first 60 or so feet with VHT several times a night, and I consistently launch MUCH better by doing a burnout on street tires. Tiny street tires. (Best 2.1 with a high RPM dump with burnout vs. best of 2.4 with low-RPM slipping or a 2.7-4.0 with high RPM dump with no burnout)

Some tires LIKE to be heated up. Generally speaking, Goodyears do, every set of them I've had worked better the more they heated up... my 185/70 econo tires launch harder than my 205/60 R-compound tires! The only problem with them is that they don't last very long (I'm lucky to get 20k out of any se) and, for an FD, the only tires they make in the sizes you'll need are hideously expensive, unless you don't mind paying $300-400 per tire. The performance tires also can get scary when it gets cold, they'll "glass over" at about 35-40deg and then it's like driving on ice, even when the ground is dry, until you manage to get them warmed up.

87GTR

iTrader: (61)

when I used my A032R's and droped the pressure to 26 my 60 foot time was 2 sec
when I used a set of Ari's slicks my 60 foot time when to 1.6 ~ 1.7

I have never been throw that hard back in my seat until that 1st lauch with slicks, I launched at 6000rpm

get some slicks for the track

I cant wait to get the right sized ones I know would have busted a faster time than 11.9
I had 28X10 on the car these barly fit on the car
and I had to raise my coil overs all the way to the top!!!
I want to get some 26's

here is a pic

TeamFC3S Drag FC

peejay

Keep in mind that those 2.1 sec 60's include the car bogging and falling flat on its face after 30 feet! Of course if I have more tire I could launch at a higher RPM so that the clutch slips more so that when it finally grabs the engine isn't below its powerband.

Or I could just get deeper gears... which is my plan of attack... I want to run 1.7-1.8 60's on puny street tires

efiniracing

I have M.T wrinkle walls but I'm afraid that If I launch too hard I'll break my rear. What are your thoughts?