razza Posted November 13, 2007 Share Posted November 13, 2007 Is there any difference in having a UK head vs JSpec, this includes UK cams and turbo's, just not the 550cc injectors? Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted November 13, 2007 Share Posted November 13, 2007 UK cams have better top end performance iirc. Quote Link to comment Share on other sites More sharing options...
Thorin Posted November 13, 2007 Share Posted November 13, 2007 UK cams have better top end performance iirc. Isn't only one of them (exh?) a higher duration? I can't remember to be honest. Quote Link to comment Share on other sites More sharing options...
rovervi Posted November 13, 2007 Share Posted November 13, 2007 its better from what i have been told he he Quote Link to comment Share on other sites More sharing options...
Nic Posted November 13, 2007 Share Posted November 13, 2007 J-Spec Supra Intake Duration - 224° Intake Camshaft lift - 7.88mm Intake valve diameter - 33.5mm Intake Valve timing - Opening - 3° BTDC Intake Valve timing - Closing - 50° ABDC Exhaust Duration - 233° Exhaust Camshaft lift - 8.4mm Exhaust valve diameter - 29mm Exhaust Valve timing - Opening - 52° BBDC Exhaust Valve timing - Closing - 4° ATDC Export Supra Intake Duration - 233° Intake Camshaft lift - 8.25mm Intake valve diameter - 33.5mm Intake Valve timing - Opening - 3° BTDC Intake Valve timing - Closing - 50° ABDC Exhaust Duration - 233° Exhaust Camshaft lift - 8.4mm Exhaust valve diameter - 29mm Exhaust Valve timing - Opening - 52° BBDC Exhaust Valve timing - Closing - 4° ATDC Quote Link to comment Share on other sites More sharing options...
Thorin Posted November 13, 2007 Share Posted November 13, 2007 useful information again Ah, knew I'd get it the wrong way around, cheers Nic. Quote Link to comment Share on other sites More sharing options...
razza Posted November 13, 2007 Author Share Posted November 13, 2007 and what real difference does that make? Quote Link to comment Share on other sites More sharing options...
razza Posted November 13, 2007 Author Share Posted November 13, 2007 its better from what i have been told he he Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted November 13, 2007 Share Posted November 13, 2007 and what real difference does that make? UK cams have better top end performance iirc. Quote Link to comment Share on other sites More sharing options...
razza Posted November 13, 2007 Author Share Posted November 13, 2007 Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted November 13, 2007 Share Posted November 13, 2007 It means more air gets in or out or something like that. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.