How much can the M20/b25 propshaft take before it twists or breaks?
Also how does the guibo & donut hold out?
thanks
M20 propshaft,how much can it take??? (turbo boys)
Moderator: martauto
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leeparkes
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Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place..
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blingsta
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never heard of any issues with the sd props on turbo conversions !
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punk_sy
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erm the guy with the tt supra engined e30 had some trouble with the splines i think !
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james3320
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the rubber donuts are useless, they dont take much abuse before they break! the prop shouldnt break before the donut 
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fuzzy
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my props ok with 330.it should be about 300lbft as well. i dont have the rubber doughnut fitted though.
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blingsta
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nope, he ripped the rear subframe off..punk_sy wrote:erm the guy with the tt supra engined e30 had some trouble with the splines i think !
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Gunni
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When you launch of the line with 500whp hitting the pavement.
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jaistanley
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I have the ZF gearbox from a 328i/3.0 M3 fitted with a 328i proshaft. The prop sports a much larger doughnut and the gearboxes are supposed to be very strong. They fit easily to M40/M50/S50 engines, on the M20's they'd probably have to sit at a slightly different angle meaning tweaking the gearshift and mounts.
Worth consideration but the M20 prop shouldn't break till you run ridiculous torque.
Worth consideration but the M20 prop shouldn't break till you run ridiculous torque.
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fowler
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they bend and twist if you have over 400bhp chaps I Know !!!!!
EX A-Tech Workshop bitch !!!
325i Turbo touring (Aka Project Fridge)
gone but not forgotten
325i Turbo touring (Aka Project Fridge)
gone but not forgotten
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leeparkes
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How does the rubber guibo hold out?
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place..