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Thread: The best Rpm right off the start... Reply to Thread
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Topic Review (Newest First)
10-23-2012 03:09 PM
Quickone4u
Quote:
Originally Posted by _Auricom_ View Post
good stuff my man,

... I had gone to our drag strip here in phoenix last, got raped due to my noobishnessness.
I now know that droping the clutch at 3k has a higher probability in getting better numbers yo.

The next question is, when shifting afterwards ... is it recommended to let off the clutch slightly. I seemed to have been letting off it alot since I did miss engaging third gear in one of my runs for not letting off the clutch enough? Any input on this?
umm....I let off of the clutch after every gear change
08-12-2012 09:39 PM
evanmdzx3 red line/ dump it! =P
08-11-2012 04:09 PM
_Auricom_ good stuff my man,

... I had gone to our drag strip here in phoenix last, got raped due to my noobishnessness.
I now know that droping the clutch at 3k has a higher probability in getting better numbers yo.

The next question is, when shifting afterwards ... is it recommended to let off the clutch slightly. I seemed to have been letting off it alot since I did miss engaging third gear in one of my runs for not letting off the clutch enough? Any input on this?
08-01-2012 03:27 PM
AllOutZX2
Quote:
Originally Posted by Texas Ghost View Post
alright, after a night of fun research of trying to figure things out here is what i came up with.

6000 rpm clutch dumping w/ 67mm tb & cone filter drop in - 17.121 @83.45
2000 rpm w/ 67mm tb & filter - 16.785 @ 83.29
2000 rpm w/ 67mm tb & w/ stock air filter house back on - 16.552 @ 83.74
2500 rpm w/ 67mm tb & stock air filter house - 16.355 @ 84.24
2900ish rpm w/ 67mm tb & stock air filter house - 16.256 @ 84.17

thats what i came up with if you need to know the 1/8 mile times i can post that.
i will be up graded with a header in the next month ( i hope ) i will post new times again
p.s. man there was some sick ass rides out there last night.
We need to know the 60ft times of each run. :)
07-24-2012 12:54 AM
SMITHBOY76908
Quote:
Originally Posted by Texas Ghost View Post
see i have always heard tha you dont have to heat your streets, but the track i go to you have no way around the wter puddle so i go thru the water fast, stop and burn out just to get the water off or i just spin forever.
Ah, yeah I hate those kind of tracks. In that case, spin 'em to get the water off like you said.
07-22-2012 08:11 PM
Texas Ghost Don't do a burnout on street tires, you're wasting your time. Street tires actually lose traction when heated due to the rubber used in radial tires. If you're working with slick compound, then yes heat them up. Slicks become stickier when hot, the opposite of a street tire. Also, going through the water with street tires is just going to get water trapped inside the grooves that will make you spin off the line even worse.[/QUOTE]

see i have always heard tha you dont have to heat your streets, but the track i go to you have no way around the wter puddle so i go thru the water fast, stop and burn out just to get the water off or i just spin forever.
07-22-2012 06:15 PM
SMITHBOY76908
Quote:
Originally Posted by sporadic View Post
The answer: give it as much RPM as you can without spinning the tires or breaking an axle.
If you spin, get stickier tires. Increase RPM until axle breaks.
This.

I launch from 5k with about 8psi built up on the 2-step. If the track is decently prepped, it hooks right up (slicks). My clutch slipped last time out though. Even dead hooking dropping the clutch from 5k, I haven't broken an axle from launching. I've broken 2 axles due to potholes though.

There's way too many variables to say what RPM to launch from, even with a stock car. Differences in track prep, track surface material (asphalt, concrete, etc...), and time of day can all make a difference. You just have to get out there and find where it likes it best.

Quote:
Originally Posted by Texas Ghost View Post
lol i guess i should have mentioned to burn out i just ASSumed he knew that
Don't do a burnout on street tires, you're wasting your time. Street tires actually lose traction when heated due to the rubber used in radial tires. If you're working with slick compound, then yes heat them up. Slicks become stickier when hot, the opposite of a street tire. Also, going through the water with street tires is just going to get water trapped inside the grooves that will make you spin off the line even worse.
07-21-2012 09:15 PM
Texas Ghost lol i guess i should have mentioned to burn out i just ASSumed he knew that
07-21-2012 08:46 PM
jjsimports If you run High-Performance Low Profile tires like I do, I can generally launch at 4-5k and not spin but for maybe a second. Then again, I tend to BURNOUT before a drag to increase the heat on the tires and increase the amount of air just a little. I hope this helps.
07-21-2012 06:42 PM
sporadic The answer: give it as much RPM as you can without spinning the tires or breaking an axle.
If you spin, get stickier tires. Increase RPM until axle breaks.
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