TSP 408 and 6.2l heads l76 intake a s487 turbo WHAT CAM?
01-03-2010, 02:29 AM
#1
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TSP 408 and 6.2l heads l76 intake a s487 turbo WHAT CAM? I have a 62 box nova that we have been putting together with a tsp 408 9.5 to 1 comp. 6.2l heads ls7 intake and a borg warner s487 turbo what cam do u guys think would work good??? a custom grind or?
ps. we will be pushing the 408 to its limits 16-20 psi
ps. we will be pushing the 408 to its limits 16-20 psi
Last edited by Liftedsilvy; 01-03-2010 at 04:31 PM.
01-03-2010, 09:55 PM
#4
i like this one. i know it says some bs about a remote turbo,but the lift and duration figures are AWESOME!!!54-481-11 Comp Cams Hydraulic Roller 235 / 231 .621/.617 115 LSA, High rpm street/strip applications using a remote mount turbo system. RPM range from 2700 to 7200.
Last edited by FOUROHSICKS; 01-03-2010 at 09:58 PM. Reason: word spelled wrong
01-04-2010, 01:00 AM
#6
Uhh what he said.
camshafts for turbo stuff depend on back pressure, spooling characteristics needed, rpm range req etc.I do cams for lots of lsx stuff, and took what id consider a first revision stab at cam for turbo project. get backpressure other data then tweak from there, not so much out of acatalog.
that cam there doesnt look right to me though
camshafts for turbo stuff depend on back pressure, spooling characteristics needed, rpm range req etc.I do cams for lots of lsx stuff, and took what id consider a first revision stab at cam for turbo project. get backpressure other data then tweak from there, not so much out of acatalog.
that cam there doesnt look right to me though
01-04-2010, 12:26 PM
#7
i like this one. i know it says some bs about a remote turbo,but the lift and duration figures are AWESOME!!!54-481-11 Comp Cams Hydraulic Roller 235 / 231 .621/.617 115 LSA, High rpm street/strip applications using a remote mount turbo system. RPM range from 2700 to 7200.
What are the specs on the S487 anyway?
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07-21-2010, 01:03 AM
#9
Speedinc makes some nice "boost" cams (tu2 236/236 w/ .587/.587 lift, 112.5 lsa) or (tu3 240/240 w/ .588/.588 lift 112 lsa). Although from what I've read, you want a cam with a little more lift to take advantage of those square port heads, hope that helps.
07-21-2010, 01:35 PM
#10
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From discussions by builders I've lurked on. The square port head doesn't need as much intake duration as the cath. ports to turn the same RPM. The exhaust split has to be based on the E/I ration of your set of heads and how much back pressure you'll end up with.
