first time on slicks - Miata Turbo Forum - Boost cars, acquire cats.

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Old 08-10-2007, 02:12 AM   #1
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Default first time on slicks

Tried out some slicks today for the first time. i likie! i have not gotton used to them since it was my frist time today using any before. you have to drive alot different on these compared to street tires.

i picked the hottest day of the year, got to 106 degrees :(. on my last run of the day i started to get the tire pressure right and i probly could have got a little stiffer on the rear shocks. this was on 12 psi on the turbo and 10 psi in the slicks, probly would have liked 8-9 psi in the slicks better.

i am thinking with a cooler day and the right pressures and a good launch on the drivers part and a good shock setting and alignment and keeping the car a little straighter half track i could pull off an 8.2 then time for more boost



got a 1.712 60 ft launching it at about 5 grand, still triing for a 1.65, i would be super excited if i could do that.

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Old 08-10-2007, 02:27 AM   #2
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Cool stuff. Looked great outside of the swerving. Those slicks look mean.
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Old 08-10-2007, 02:28 AM   #3
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Looks good man, seemed to bog a little after launch, but good run overall.
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Old 08-10-2007, 04:57 AM   #4
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I was wondering how your car was coming along, your 1/8th time is about a second faster than what I did the other day It was my first time though
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Old 08-10-2007, 10:32 AM   #5
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I love the rear bumper... are you the one that posted pics of the cut up job? I've been looking for that thread as I might do something similar.
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Old 08-10-2007, 11:20 AM   #6
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well ill say it again, it was my first time on slicks. running them at 10 psi makes the car feel like its driving on butter back there and i had no idea how much it likes to wonder around. i looked over my shoulder to see how far back the 240 was and noticed i was not going straight anymore. now that i know how the tires behave at that psi i dont think ill be doing anymore shoulder peeking.

i coudl deffinetly have launched it harder. its hard getting used to that when you couldnt even launch it when you had street tires. i can see how people break axles and trannys with these things.

hopefully next time i am up there itll be a 7.99 after my retune and more boost and better weather and better car setup. talk about fun though, i am addicted.

for those of you drag racing wizards, how is my mph 4 lower than before. i know i shouldnt be too concerned but i was dragging along an extra 120 pounds this time compared to my last time and the 100 degree air, could that have done that? i would have thought it would at least stay the same. i was getting 84-85 mph on a 70 degree night and 120 pounds less
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Old 08-10-2007, 02:30 PM   #7
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i was thinking of removing all the panels on the back of my car next time i go to the track. i dont know if it will make much of a difference. but i also will be trying to run a hardtop and without a hardtop.
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Old 08-10-2007, 04:37 PM   #8
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aero may help in the 1/4 but in the 1/8th its all traction and giddy up. i was running no fender or hood or bumper and it seems to slow me down alot with all this crap on here. but on the road at like 80 my gas milage has gotton so much better
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Old 08-10-2007, 10:51 PM   #9
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Quote:
Originally Posted by Arkmage View Post
I love the rear bumper... are you the one that posted pics of the cut up job? I've been looking for that thread as I might do something similar.
That may have been me but I don't remember posting it here. Here's a link:
http://www.lightweightmiata.com/rear...rearbumper.htm
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Old 08-11-2007, 12:40 AM   #10
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and i thought i was the first. o well looks good
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Old 08-11-2007, 12:46 AM   #11
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Quote:
Originally Posted by rmcelwee
I'm not sure how safe it is but it is a bit lighter [10lbs].
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Old 08-11-2007, 01:19 AM   #12
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how is that any less safe? its just a bunch of shitty plastic parts that wouldnt survive an impact with my knee
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Old 08-11-2007, 04:35 PM   #13
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what is the sound when you launch? what is scrubbing/hitting?
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Old 08-11-2007, 04:43 PM   #14
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Quote:
Originally Posted by mxv View Post
well ill say it again, it was my first time on slicks. running them at 10 psi makes the car feel like its driving on butter back there and i had no idea how much it likes to wonder around. i looked over my shoulder to see how far back the 240 was and noticed i was not going straight anymore. now that i know how the tires behave at that psi i dont think ill be doing anymore shoulder peeking.

i coudl deffinetly have launched it harder. its hard getting used to that when you couldnt even launch it when you had street tires. i can see how people break axles and trannys with these things.

hopefully next time i am up there itll be a 7.99 after my retune and more boost and better weather and better car setup. talk about fun though, i am addicted.

for those of you drag racing wizards, how is my mph 4 lower than before. i know i shouldnt be too concerned but i was dragging along an extra 120 pounds this time compared to my last time and the 100 degree air, could that have done that? i would have thought it would at least stay the same. i was getting 84-85 mph on a 70 degree night and 120 pounds less
You are lossing MPH becouse of the tire size being smaller with less air pressure you make up for it in the grip and being able to use all your hp, that is very nice indeed though i think 80 mph traps and closer to 1.6 60's will see you into the 7.9's You are doing a great job though i would be happy with those times maybe alittle more.
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Old 08-11-2007, 05:02 PM   #15
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Decent times for first time out for sure. looks bad-*** too.
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Old 08-13-2007, 02:08 AM   #16
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I bet with some more seat time and 70* weather you would break in the 7s.
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Old 08-13-2007, 11:35 AM   #17
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the sound isnt any scraping i dont think, i lifted the rear alot to make sure of that and check the tires, i think the sound of these tires gripping sounds like adhesive when launching.

i think it was the heat slowing everyone down, alot of the 8.5 guys were running near 9's and the guy that always ran a 6.5 was running a 6.77 that day. o well ill be back out after i get her bumped up to 15 psi this wed/thurs and see if i can start my runs a little later in the day.
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Old 08-13-2007, 10:40 PM   #18
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looks good, the heat is killing you though. 80mph is way slow. I'm gonna wait till fall to take mine back out to the track. It sounds like your car is pretty similar to mine power-wise if you run 84-85mph normally. that's a nice 60ft as well.
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Old 08-13-2007, 11:14 PM   #19
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I've never drag raced anything. Do you cross the finish line in 4th gear?
With my stock gear ratio i cruise at 80 mph at 4500rpm in 4th gear so i'm just guessing.
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Old 08-13-2007, 11:22 PM   #20
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thx, well see. i get to about the top of my 3rd with 23 inch tires and a 4.1
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