Cam Selection
Thread Starter
Heel & Toe
Joined: Jul 2003
Posts: 15
Likes: 0
From: Dublin OH
Cam Selection
HotCam/GMPP vs. LPE219 vs. Comp Extreme vs. (insert trick cam here)
I'm putting together a budget 350TPI combination for my 1990 convertible. The car has a ZF6 and a 3.45 rear end. I will use an LT1 intake manifold, home ported L98 heads (near 200CFM @ .400, 230CFM@ .500 and .600) and all of the breathing/ignition mods needed to support the cam and heads. The hotcam is cheapest, but the 219/219 looks like it would best remedy my anemic low-lift flow numbers. I'm not sure if I would benefit more from a split duration or single duration cam (L98 heads have a decent I/E ratio with similar porting on both intake and exhaust?) or if either cam would make a substantial amount more power than the other. Also there are the assorted comp grinds like the XE, Magnum and even the "305" LT1 grind which looks like a hotcam with more of the lift that I need. Which, if any would be the best for the combination without breaking the bank? Any info or tips are appreciated!!! Thanks!
I'm putting together a budget 350TPI combination for my 1990 convertible. The car has a ZF6 and a 3.45 rear end. I will use an LT1 intake manifold, home ported L98 heads (near 200CFM @ .400, 230CFM@ .500 and .600) and all of the breathing/ignition mods needed to support the cam and heads. The hotcam is cheapest, but the 219/219 looks like it would best remedy my anemic low-lift flow numbers. I'm not sure if I would benefit more from a split duration or single duration cam (L98 heads have a decent I/E ratio with similar porting on both intake and exhaust?) or if either cam would make a substantial amount more power than the other. Also there are the assorted comp grinds like the XE, Magnum and even the "305" LT1 grind which looks like a hotcam with more of the lift that I need. Which, if any would be the best for the combination without breaking the bank? Any info or tips are appreciated!!! Thanks!
Race Director
Joined: Feb 2004
Posts: 12,517
Likes: 19
Re: Cam Selection (FasterCheaper)
We put the GM zz-4 cam in 5 different tpi motors. It was dirt cheap $175 I think. All5 ran very well and et'd respectably.It may not be the BEST cam but it a good safety cam. I currently have a 71219 super ram cam in my 383 It works pretty good. V erry bad results with zz-9 TPIS cam. My $.02 :steering: :party:
