1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Rpm's when Launching.

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Old 12-14-03, 06:33 PM
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Question Rpm's when Launching.

Considering I have a stock 12a, I was wondering what RPM's everyone launches at? Or what they find most effective.
Old 12-14-03, 06:38 PM
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Old 12-14-03, 06:43 PM
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Nah, depends on your clutch man, try 3500 but dont just hold it at 3500, blip it between 3000 and 3500 and slip the clutch. That is if you're at the track. Working the accelerator pump that way gets a little extra fuel in there for a good launch or so it would seem.
Old 12-14-03, 07:19 PM
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what are your tires specs?
Old 12-14-03, 07:27 PM
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oh ****,, these guys...lol

Off the line launching is an art form..

1st gen rx7's and even rx2's just seem to hook up.

it takes some time too and practice.. it's a fine line between hooking up, or spinning out (up in smoke)
Old 12-14-03, 07:42 PM
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i have launched at 4000rpm with success. car is relativley stock.. my gsl-se requires a bit different rev range. usually about 3000 to 3300rpm.
Old 12-14-03, 07:50 PM
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Well launching with a 12a with a turbo is a very fine line between bogging and near-uncontrolable wheel spin. Has a lot to do with easing off the gas just enough and then floor it and not too soon or too late or I will lose.
Old 12-14-03, 09:15 PM
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I come otu at around 3k and let off the gas a little to hook. Only got about 250 mile worth of experience with this car though.
Old 12-14-03, 09:27 PM
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10500rpm on the limiter and dump the clutch =



Old 12-14-03, 09:29 PM
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YOu know what I love about that picture?? It looks exactually like my car. Hehehe I can tell my hick friends its my car in "track trim". Just joking.
Old 12-14-03, 09:38 PM
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Hey, thats kinda what I want to do, well it IS what I want to do. Damn, looks fun....
Old 12-14-03, 09:46 PM
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Just added that to my screensaver slideshow!!
Old 12-15-03, 06:59 PM
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yeah,,,,just like that !!! hooking,,,the ,**** up !!!

G-day steve. no new toys ? that is a good picture.
Old 12-15-03, 07:05 PM
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Rev it to 3000rpms. Let the clutch out half way. Then dump the gas pedal and clutch at the same time.
Old 12-15-03, 07:06 PM
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Why is it that you're able to just dump the clutch at 10500 RPM with that car. Do the drag radials really improve traction THAT much?
Old 12-15-03, 10:20 PM
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Yes they do.. just about any tire, when warmed up
will provide more grip,then cold. for him to pull the wheels like that. the rear tires were well baked.10500 rpm's ain't nothing.
Old 12-15-03, 11:13 PM
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Back to our original 12A subject...

Yes, 3500 is good. I've experimented with my 13b and at least 3500 or 4000 is enough. I doubt there's much difference for your car.
Old 12-17-03, 03:33 PM
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Originally posted by metalliman
Why is it that you're able to just dump the clutch at 10500 RPM with that car. Do the drag radials really improve traction THAT much?
Twin plate clutch, T2 box, 3.5 inch tailshaft, strong *** diff and slicks

On street tyres, it just comes down to practise. I cut a 1.7 60ft on street tyres.

What I found effective was to find a sweet RPM point where the car wont bog, and keep the RPMs there by slipping the clutch out and pushing the accelerator in as you take off.
Old 12-17-03, 09:20 PM
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ajc, are you back in the game?
Old 12-17-03, 10:20 PM
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I used to launch at 5500.

I would hold it there, then similtaniously drop the clutch and hit the gas, then shift at 8000, made for some car twisting launches.
Old 12-18-03, 02:24 AM
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Originally posted by Gregs
ajc, are you back in the game?
Nope....
Old 12-18-03, 03:36 AM
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back with rotaries

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let me see, my car with s#^t tires, 203 hp on a SE turbo engine and SE tranny with stock clutch and stock 20 year old suspension ill launched it at 3k-3500 and that been easy with the clutch so i dont have too much wheelspin but right in 3 gear it started to spin the clutch alot
Old 12-18-03, 08:46 AM
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If launching at 10500, what is the redline? Or is that it, launch, then shift, right away??
Old 12-18-03, 04:01 PM
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AJC13B's redline was 10k + rpm because his engine was made to get that high, on a stock 12a your redline is 6800 RPM, please do not try to make your 12a go that high or you blow it
Old 12-18-03, 11:30 PM
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Eddie
Did you end up selling your blow thru setup for a EFI one, I wanted my car to be like your blow thru SE motor setup?
btw hows the car running with the new motor?


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