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> Celica GT4 Launch, Basic question
post Aug 25, 2009 - 9:12 PM
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Island_Racer

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Ok guys, I just really want to know the most effective rpm to attempt to launch a GT4(stock) and the best shift point for a drag.(for all gears) Please hit this up
post Aug 26, 2009 - 12:58 AM
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Cuts_the_Pilot



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hhmm stock launch, best launch is smashing limiter and slipping the clutch, isnt good for the clutch though.

dial up say 6000 and release the clutch and your away.

best shift point is around 7k.


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ST205 Group A Rallye GT-Four, #61 of 77............600hp GT3582r
GRX133 Toyota Mark X 350s
post Aug 26, 2009 - 1:36 AM
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Euphoria

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this makes me cringe how long the gearbox/diff will last haha, my friend had a wrx and launched it all the time and got 400k out of the engine and the gearbox was still going, the way he did it was let the clutch slip, rather than dropping it, so all the wear went on the clutch rather than the gearbox, I don't know how true this is.
post Aug 26, 2009 - 2:46 AM
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Cuts_the_Pilot



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he didnt mention what is the best for gearbox longevity tongue.gif

when im drag racing i "preload" the gearbox, basically as in staging i pull the handbrake on, then release the clutch ever so slightly so it "loads" up the gearbox ever so slightly, so when you do drop it there is no heavy CLUNK as everything meshes.


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ST205 Group A Rallye GT-Four, #61 of 77............600hp GT3582r
GRX133 Toyota Mark X 350s
post Aug 26, 2009 - 5:35 AM
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delusionz



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I've never dropped the clutch on my st205, scared I might break it... I don't really get to thoroughly enjoy the car like I did with the st202 tongue.gif I hope to throw it down a track some time and check out the end of my 3rd gear aswell as a limiter launch (maybe just once) and hopefully get a 14.0 or something?


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Mike W
1996 Toyota Celica ST205 GT-FOUR
GT2860RS turbine, TiAL mvr44, JE 86.5φ piston, Clutchmasters FX400, APEX P-FC
269awhp / 273ft-lbs
post Aug 26, 2009 - 5:54 AM
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Nial



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Launch control is set at 4800rpm on mine, seems to do the job. 6500rpm is the best shift point as power tends to start dropping off after that but each and every car is different...just get the feel for the car and shift accordingly, there us no hard and fast rule as to when to change gear.


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My Facebook GT4 Build page.
https://www.facebook.com/groups/GT4Rebuild
post Aug 26, 2009 - 8:09 PM
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Euphoria

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aw I want awd frown.gif haha
post Aug 26, 2009 - 11:16 PM
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johnnehh



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QUOTE (Euphoria @ Aug 26, 2009 - 9:09 PM) *
aw I want awd frown.gif haha

Lmao that's what I was thinking the entire time reading this.

Those lucky guys with GT4s. Real ones, too. tongue.gif

Screw it, I'm moving to Hong Kong.


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1996 Toyota Celica GT (GT4 conversion) - SOLD :(
2002 Audi A4 1.8T Quattro - Daily Driver
post Aug 27, 2009 - 12:08 AM
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CelicaST_CALI



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QUOTE (johnnehh @ Aug 26, 2009 - 9:16 PM) *
QUOTE (Euphoria @ Aug 26, 2009 - 9:09 PM) *
aw I want awd frown.gif haha



Screw it, I'm moving to Hong Kong.



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BANNED. for life, you moron.
post Aug 27, 2009 - 6:26 PM
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TRDGT4



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QUOTE (delusionz @ Aug 26, 2009 - 5:35 AM) *
I've never dropped the clutch on my st205, scared I might break it... I don't really get to thoroughly enjoy the car like I did with the st202 tongue.gif I hope to throw it down a track some time and check out the end of my 3rd gear aswell as a limiter launch (maybe just once) and hopefully get a 14.0 or something?



i have been down the strip (ages ago mind you) when the car was standard and i would launch at about 6000rpm and the change at red line now with the new current setup i launch at the same rpm but it's all just wheelspin untill i ease back on the loud pedal but it's so hard not to because it's just so much fun frying all four!!!


as for a standard time down the quarter i managed a 13.5 in standard trim so anything around there i think is a good time.


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