best cam to use out of these 3.....

1. ExceedingPanic Newbie Joined: Sep 2007 nottingham Posts: 20 Saxo 1.4 westcoast road rally car, 106 xsi, berlin

   #1 4th October 2010, 22:51

   hi basically i have these cams just wondering which will be the best over all, i compete in road rally events were torque is normally needed lower down the RPM range and cant find the specs for standard vts cams or c3 16v cams, i will be using the c3 head with the larger valves. i will not be purchursing any more cams eg 708,ph3 or pt51 as money is a bit tight atm just wondered whats the best i can use with what i have. i will be using j4 springs/followers
   
   cam choices i have:
   
   std vts j4
   
   standard c3 jp4
   
   kent pt50(r) presume these are regrinds with the (R) read up on these cams and heard they dont actually do that much apart from shift the power band up
   
   thanks chris all comments welcome
2. wicked-vtr Saxperience Forum Bum Joined: Jan 2009 Surrey Posts: 2608 200sx s14a mark 1 vts

   #2 5th October 2010, 00:19

   If you need the torque and power lower down the revs id stay away from a high lift cam.
   People have seen a power increase by fitting j4 cams in jp4 heads, nothing massive though imo.
3. ExceedingPanic Newbie Joined: Sep 2007 nottingham Posts: 20 Saxo 1.4 westcoast road rally car, 106 xsi, berlin

   #3 5th October 2010, 00:35

   you dont happen to know the standard specs of j4 cams and jp4 cams do you?
4. wicked-vtr Saxperience Forum Bum Joined: Jan 2009 Surrey Posts: 2608 200sx s14a mark 1 vts

   #4 5th October 2010, 00:50

   Im afraid not mate, someone a bit ones clued up might be able to help you though.
5. user_28362 Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo

   #5 5th October 2010, 07:20

   Why not just install a shorter gearbox to help.
6. ExceedingPanic Newbie Joined: Sep 2007 nottingham Posts: 20 Saxo 1.4 westcoast road rally car, 106 xsi, berlin

   #6 5th October 2010, 19:59

   ive got xsi box on at the min not as good as the rallye box tho what would you recomend kent cams then?
7. user_28362 Saxperience Post Whore Joined: Nov 2008 Posts: 5306 911 Turbo

   #7 5th October 2010, 20:23

   Quote:

   Originally Posted by ExceedingPanic ive got xsi box on at the min not as good as the rallye box tho what would you recomend kent cams then?

   i have run some tests on short gear ratios & engine power delivery
   
   kent pt50 is just a regrind spec which would be ok with your box
   
   good spread of power i believe unless you fit 708's & shorten the box further
8. ExceedingPanic Newbie Joined: Sep 2007 nottingham Posts: 20 Saxo 1.4 westcoast road rally car, 106 xsi, berlin

   #8 5th October 2010, 21:01

   thanks for the advice pt50 it is then, i shouldnt have any valve clearance problems with these cams using the jp4 head and jp4 gasket (0.6mm) head has not been skimmed thanks chris
9. ExceedingPanic Newbie Joined: Sep 2007 nottingham Posts: 20 Saxo 1.4 westcoast road rally car, 106 xsi, berlin

   #9 6th October 2010, 23:33

   Quote:

   Originally Posted by ExceedingPanic thanks for the advice pt50 it is then, i shouldnt have any valve clearance problems with these cams using the jp4 head and jp4 gasket (0.6mm) head has not been skimmed thanks chris

   or is a case of dry building?