whats needed for bullit proof transmission on STI
26 July 2007, 06:01 PM
#31
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cheers for all the replys again guys.
getting the power wont be the problem but i understand from runnng a 550 bhp cossie myself that maintaining is the hard part.
what stronger shafts are available then?
getting the power wont be the problem but i understand from runnng a 550 bhp cossie myself that maintaining is the hard part.
what stronger shafts are available then?
26 July 2007, 09:02 PM
#34
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If this is the car I think it is then they may well get the power, GT42R built 2.5 twin plenum intake etc.
It will not make a nice (or even quick) A/B road car though, as previously mentioned between 400 and 500 is ideal it terms of driveability, quick response, reliability etc.
Andy
It will not make a nice (or even quick) A/B road car though, as previously mentioned between 400 and 500 is ideal it terms of driveability, quick response, reliability etc.
Andy
28 July 2007, 08:32 AM
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TeamICE - Press Release: Roger Clark Team ICE Impreza blitzes world record
800hp+ impreza :] with NOS.. and they're building a new one :]
800hp+ impreza :] with NOS.. and they're building a new one :]
28 July 2007, 08:49 AM
#39
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Whats your budget for the whole car?
I personally can't see why you'd need 700, as I believe that 500 is more than enough, surely with the extra torque, you'll have MAJOR traction issues??
I wish you well and suggest that you go with the PPG and keep your fingers crossed.
I personally can't see why you'd need 700, as I believe that 500 is more than enough, surely with the extra torque, you'll have MAJOR traction issues??
I wish you well and suggest that you go with the PPG and keep your fingers crossed.
28 July 2007, 08:57 AM
#40
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TeamICE - Press Release: Roger Clark Team ICE Impreza blitzes world record
800hp+ impreza :] with NOS.. and they're building a new one :]
800hp+ impreza :] with NOS.. and they're building a new one :]
Above 500 hp in a road car is not at all praactical and will need constant maintenance and attention. Somewhere just below in a 2.5 is absolute optimum for a good nice to drive road car. IN MY OPINION.
David APi
15 August 2007, 06:38 PM
#43
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Yes IIRC they are running more but does not change the fact Steven has had gearbox failures at lower power levels. Having said that I could be wrong, I think there is also PAR? It maybe that gearbox Steven has had problems with.
Someone else can maybe confirm which Gearbox/Gearset Steven has been running?
Someone else can maybe confirm which Gearbox/Gearset Steven has been running?
April 2006 broke 2nd gear of a Par 1/2 PPG 3/4 Synchro setup at 450bhp
May 2006 broke 2nd gear of a PPG 1/2/3/4 synchro setup at 560bhp
July 2006 broke 2nd gear of a Modena 1/2/3/4/5 dog box at 560bhp
Car put to bed till December 2006, when PPG dog box used.
April 2007 had to modify the interlocker of PPG dog box to stop me selecting 1st so easily, after i destroyed my engine at Donnington selecting 1st from limiter in 2nd.
May 2007 broke 3rd and 4th clean in half on PPG dog box at Scooby Shoot Out running 560bhp
July 2007 broke 1st gear of PPG Dog box, when somehow it selected 1st gear as i selected 5th at 160mph. Approx 620bhp. Resulting in destroyed engine, clucth and box!
Car put to bed!
All in all a pretty bad run of luck, which i seem to have with my own car.
Contrast that with the following fact, that for more than 2 years, and probably 100+ drag launches, several hard track sessions, i have not broken a single thing on the Lateral car's gearbox, which is PPG synchro, and that has been running 600+ for at least 18 months, plus a 50 shot of nitrous on top!
That, no one can understand, other than bad luck!
What i will do next, i do not know!
Steven
16 August 2007, 12:01 AM
#46
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Just to clarify
April 2006 broke 2nd gear of a Par 1/2 PPG 3/4 Synchro setup at 450bhp
May 2006 broke 2nd gear of a PPG 1/2/3/4 synchro setup at 560bhp
July 2006 broke 2nd gear of a Modena 1/2/3/4/5 dog box at 560bhp
Car put to bed till December 2006, when PPG dog box used.
April 2007 had to modify the interlocker of PPG dog box to stop me selecting 1st so easily, after i destroyed my engine at Donnington selecting 1st from limiter in 2nd.
May 2007 broke 3rd and 4th clean in half on PPG dog box at Scooby Shoot Out running 560bhp
July 2007 broke 1st gear of PPG Dog box, when somehow it selected 1st gear as i selected 5th at 160mph. Approx 620bhp. Resulting in destroyed engine, clucth and box!
Car put to bed!
All in all a pretty bad run of luck, which i seem to have with my own car.
Contrast that with the following fact, that for more than 2 years, and probably 100+ drag launches, several hard track sessions, i have not broken a single thing on the Lateral car's gearbox, which is PPG synchro, and that has been running 600+ for at least 18 months, plus a 50 shot of nitrous on top!
That, no one can understand, other than bad luck!
What i will do next, i do not know!
Steven
April 2006 broke 2nd gear of a Par 1/2 PPG 3/4 Synchro setup at 450bhp
May 2006 broke 2nd gear of a PPG 1/2/3/4 synchro setup at 560bhp
July 2006 broke 2nd gear of a Modena 1/2/3/4/5 dog box at 560bhp
Car put to bed till December 2006, when PPG dog box used.
April 2007 had to modify the interlocker of PPG dog box to stop me selecting 1st so easily, after i destroyed my engine at Donnington selecting 1st from limiter in 2nd.
May 2007 broke 3rd and 4th clean in half on PPG dog box at Scooby Shoot Out running 560bhp
July 2007 broke 1st gear of PPG Dog box, when somehow it selected 1st gear as i selected 5th at 160mph. Approx 620bhp. Resulting in destroyed engine, clucth and box!
Car put to bed!
All in all a pretty bad run of luck, which i seem to have with my own car.
Contrast that with the following fact, that for more than 2 years, and probably 100+ drag launches, several hard track sessions, i have not broken a single thing on the Lateral car's gearbox, which is PPG synchro, and that has been running 600+ for at least 18 months, plus a 50 shot of nitrous on top!
That, no one can understand, other than bad luck!
What i will do next, i do not know!
Steven
The solution is obvious !!!!
Register your car in Marks name
16 August 2007, 12:48 AM
#47
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5 speed dog kit in 6 speed case. Suitable ratios (ie not just group N) available soon from us. 5 speed based options are not bulletproof at this level, and become a consumable if you lean on them.
If it's a drag only car, then go modified auto.
If it's a drag only car, then go modified auto.
16 August 2007, 02:12 PM
#48
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I know a guy who has 750bhp Supra with lots of trick bits. The engine isnt that much of a problem, neither is the gear box really. Its the Diff's that get smashed to bits. On the 6th already this year. It eats tires too.
Dont expect to do any mileage with a car that highly tuned.
Would love a ride in it though. Good luck to you! God Speed, oh and buy a STRONG roll cage just incase...
Dont expect to do any mileage with a car that highly tuned.
Would love a ride in it though. Good luck to you! God Speed, oh and buy a STRONG roll cage just incase...
16 August 2007, 03:08 PM
#49
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I think the problem is the application.
On a track car, you can still go very fast, but be sympathetic towards the gearbox. In drag racing, if you don't smash the hell out of the box, you don't get a good time, end of.
I know that doesn't really help anyones situation, but it's worth bearing in mind when speccing the build.
If I dragged my scooby, i'd expect a few fluffed changes per season which will inevitably lead to a broken gearbox.
On a track car, you can still go very fast, but be sympathetic towards the gearbox. In drag racing, if you don't smash the hell out of the box, you don't get a good time, end of.
I know that doesn't really help anyones situation, but it's worth bearing in mind when speccing the build.
If I dragged my scooby, i'd expect a few fluffed changes per season which will inevitably lead to a broken gearbox.
18 August 2007, 10:23 PM
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We managed to strip teeth off the transfer gears on track. Once you're past 600hp I think you need a very good gearbox regardless of what you're doing. I seem to be relatively sypathetic and have only ever had one problem on a decent gearkit (not PPG i might add) but have broken 3 or 4 sets of transfer gears now.
Paul
Paul
I think the problem is the application.
On a track car, you can still go very fast, but be sympathetic towards the gearbox. In drag racing, if you don't smash the hell out of the box, you don't get a good time, end of.
I know that doesn't really help anyones situation, but it's worth bearing in mind when speccing the build.
If I dragged my scooby, i'd expect a few fluffed changes per season which will inevitably lead to a broken gearbox.
On a track car, you can still go very fast, but be sympathetic towards the gearbox. In drag racing, if you don't smash the hell out of the box, you don't get a good time, end of.
I know that doesn't really help anyones situation, but it's worth bearing in mind when speccing the build.
If I dragged my scooby, i'd expect a few fluffed changes per season which will inevitably lead to a broken gearbox.
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