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Working launch control on 1993-1996 ECU

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Old 18 February 2009, 03:58 AM
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saiklon
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Default Working launch control on 1993-1996 ECU

Hi everyone,

Yesterday I was able to get launch control working on a Z5 ECU (1995 WRX RA), I know for sure the same code will work on a Z4 ECU. If anyone is interested in the details, you can check the thread I've put up on subiesmart.com. Launch control for 1993 to 1996 Impreza WRX
Old 18 February 2009, 08:59 PM
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sponners
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is this 'proper' launch?

is this just a stationary rev limiter? have the timing tables been altered also for 2-step?
Old 19 February 2009, 05:50 AM
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saiklon
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Well I would classify it as a proper launch control, it's not just a stationary rev limit.

You get the ratatat sound plus I get about 0.3bar boost. I will post a video of it when I find a quiet road without anyone to annoy.

I didn't alter any timing tables, I just initiate a hard fuel cut when the launch control RPM is hit.
Old 19 February 2009, 09:48 PM
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think you need more than 0.3 bar to clasify launch....or to make it worth while......you should look into altering timing/fuel tables.
Old 20 February 2009, 05:19 AM
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saiklon
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I think the amount of boost can be increased by altering how much the timing is retarded when the rev limit is hit. I don't know where that parameter is so I haven't experimented with that.

Also I'm testing this on a TD05, I suspect with an earlier spooling turbo, more boost will be built. I will test it on a car with a VF11 sometime in the next 2 weeks.
Old 20 February 2009, 01:00 PM
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Originally Posted by saiklon
I think the amount of boost can be increased by altering how much the timing is retarded when the rev limit is hit. I don't know where that parameter is so I haven't experimented with that.

Also I'm testing this on a TD05, I suspect with an earlier spooling turbo, more boost will be built. I will test it on a car with a VF11 sometime in the next 2 weeks.
Tidy!

.....keep up the good work
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