noodels Posted July 20, 2010 Share Posted July 20, 2010 Gains= 2.7 hp for every 1lb lightened on crank, should get 8.1 hp any thought?alloy 1IB.2oz pounds standard thinkin 4.0/4.5 pounds sounds bit much any ideas???b18 http://www.jperformance.co.uk/honda-civ ... -p-22.html Link to comment Share on other sites More sharing options...
digitalfaze Posted July 20, 2010 Share Posted July 20, 2010 Looks not too bad, best thing you could do is give it a try and see what happens. might be little gains but they all add up.I had a bad experience with that company when i bought a manifold, might have been a 1 off but just watch out Link to comment Share on other sites More sharing options...
noodels Posted July 21, 2010 Author Share Posted July 21, 2010 have now canceled thanks, couldnt afford anyway Link to comment Share on other sites More sharing options...
james Posted July 21, 2010 Share Posted July 21, 2010 i have read bad thing about these pullysunless you realy know what your atid say light waight alloys would be a better idea for speed and handling Link to comment Share on other sites More sharing options...
Guest Daz81 Posted July 22, 2010 Share Posted July 22, 2010 The standard Honda crank pulley has a Harmonic dampner fitted in side and is balanced along with the crank and flywheel in manufacture.Swapping your crank pulley for a lightened item could cause an imbalance on the crank and thus causing bottom end failure.IMO the best option for using an lightened crank pulley would be to have it balanced with the crank, this however isnt a cheap process.Losing weith from the crank has + sides, faster spin up and less rotating mass, but it also has down sides in loss of inertia.I doubt 8bhp could be found personally but thats just me being sceptical, fwiw loosing the pas belt gains 5bhp accross the board (tested on a dyno) loosing the PAS/AC/Alternator we saw 11bhp gain on our race engine.Daz Link to comment Share on other sites More sharing options...
noodels Posted July 23, 2010 Author Share Posted July 23, 2010 thanks for that didnt think they had damper!oh well glad i stoped order!intresting 5hp ac though pity couldnt get alternating current from elsewhere ?wind turbine! ha! ha! exhaust gas!lost energy ect http://www.atiracing.com/products/dampe ... mhonda.htmlooks good dont know how much though? for road car ?saves about 1pound =2hp Link to comment Share on other sites More sharing options...
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