Diff and driveshaft strength
14 December 2005, 04:08 PM
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Neil, you won't break a diff, but once you get into 500 hp or so you will start to break rear [ usually] drive shafts if you provoke them. Thta's in a drag strip situation not on the road. The failsafe to stop driveshafts breaking is the gearbox 
Rally cars and WRC cars aren't really valid as a comparison as they only make 300 ish horsepower, sure, a lot of Nm's and wildly differing surfaces but the brute power isn't there.
David APi Impreza / APi Engines
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Rally cars and WRC cars aren't really valid as a comparison as they only make 300 ish horsepower, sure, a lot of Nm's and wildly differing surfaces but the brute power isn't there.
David APi Impreza / APi Engines
www.apiengines.com
15 December 2005, 02:26 PM
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Location: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
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Crown wheel and pinions also break..
Rear diffs will break with 500+ hp. r180 stands more chance of lasting.
David
Rear diffs will break with 500+ hp. r180 stands more chance of lasting.
David
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17 December 2005, 09:58 PM
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Is that wheel or Fly power?
Originally Posted by David_Wallis
Crown wheel and pinions also break..
Rear diffs will break with 500+ hp. r180 stands more chance of lasting.
David
Rear diffs will break with 500+ hp. r180 stands more chance of lasting.
David
22 December 2005, 12:10 AM
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Originally Posted by David_Wallis
Crown wheel and pinions also break..
Rear diffs will break with 500+ hp. r180 stands more chance of lasting.
David
Rear diffs will break with 500+ hp. r180 stands more chance of lasting.
David
Quite right David, I broke a rear end this year, CW/P
---john---
22 December 2005, 09:56 AM
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Rear diff goes before the front because it takes more load right So what would you look at replacing that with quafe or similar?. I notced most of the guys running around the 500+ mark have uprated front diffs but dint realise the rear was different to. Assuming a DCCD type r set up with plated rear 180 and ppg straight cut kit running 500, Would it be sensible to have a spare diff sitting in the garage? isnt mikee still on standard rear 180 ?
Neil
Neil
04 January 2006, 02:50 PM
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This lot have a great reputation for re-inforced, custom built driveshafts on road cars, touring cars, rally cars, etc...
www.driveshaft.co.uk
www.driveshaft.co.uk
04 January 2006, 04:13 PM
#14
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Location: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
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sent them an email, however Im sure someone off here worked there.. or was that drivelink..
Also emailing these guys.. http://www.driveshaftshop.com/wrx.ivnu
Also emailing these guys.. http://www.driveshaftshop.com/wrx.ivnu
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