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Old 09-04-2007, 01:57 PM   #1
Scooby Newbie
Member#: 84448
Join Date: Apr 2005
Default 10 second Subaru - shaft breakages

I have a 2004 WRX modified for drag racing. It has an AXIS Racing 2.5 engine and a Tony Rigoli performance Auto Transmission. I just broke my 2nd driveshaft shop Level 5 axle in less 10 days. We just raced the car in 2 events as the car was finished about a month ago. First event was about finding the right setup and we just did 12sec runs but last weekend I run 2 times 10.9. The car has great potential as with the help of Sam Rigoli we bought all the best parts possible and we are aiming to run in low 9s. Does anyone know if it is common to break the driveshafts shop axles so easily? They guys from driveshaft told me that the ESX car never broke one so I cant understand how it is possible to break 2 800bhp shafts in less than 10 days when launching the car. We are launching the car with 80bhp nitrous, 8psi boost and at 4400rpm. Our best 60ft was 1.60 but we must run at least 1.3 or 1.4 to be happy with our launch.

I know in the USA there are lots of 9sec Subarus so please can you help me with this problem. I am from Malta in Europe and this is the first Subaru we are modyfing and there is a great fight between Japanese cars who runs first in the 9s. Right now there is an EVO who runs 10.1 but I wish it is a Subaru who breaks it first. For modifications the list is too long to mention but everything you can think of was changed and modified. The engine right now is producing over 800bhp with nitrous but still not at full power as we still run with just 30psi boost and just nitrous used for launching and swithched off during run.
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Old 09-04-2007, 02:47 PM   #2
Homemade WRX
Scooby Guru
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: Mooresville, NC
96 3MI Racing LLC
search FIRST, then PM!!!


well, sadly I have a friend who is on DSS axles as well but making 500 whp and is braking his...I'm afraid to see how many I'm going to break.
wish I had an answer for you.
What tires are you running? you may have to lose some tire to save the drivetrain.
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Old 09-04-2007, 02:51 PM   #3
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Member#: 61749
Join Date: May 2004
Chapter/Region: MAIC
Location: Fairfax, VA

Wow thats pretty sad that DSS Stage 5 Axles are breaking.
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Old 09-04-2007, 04:49 PM   #4
Scooby Guru
Member#: 36333
Join Date: May 2003
Chapter/Region: NESIC
Location: East Kingston NH
98 RS
GT30R, closed deck madnes


ouch... DS shop LEVEL FIVE ??? that sucks... what else is there ???

maybee get better/more answeres in transmission/drivetrain forum than built motor ?
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