I am planning on running the potvin eliminator cam in my flathead ford I am looking for advice on building my motor around this cam any advice whose running it and whats it like and anyone got videos of their motor running an eliminator??
Is it a street motor...if so this cam isn't designed for it...most of the guys running this are full drag motors or lsr cars....and they have $20,000 plus in their engines...last guy who i knew that ran one built a 325ci engine filled block etc etc and he was well over $30,000 mark...what are your actual plans for an engine...if you want a street motor build a nice little stroker...I have a 304 stroker with a .396 lift cam at 270 duration which most guys well tell you to stay away from the 304 as well...cost is a big factor my 304 stroker cost $17000 to build....if you want a street usable flatty go with a 270-290ci engine and a nice mild cam talk to Pete1 on here he can grind the exact cam for your engine and give all the part numbers for the build he helped me out a lot
I plan on going with 284-292 Potvin eliminator alumminum heads 3x2 intake headers open header exhaust ported relieved just want it to sound *****in mostley street car maybe some stop light to stop light peel outs and the occasional drag run
Go here ... for the specs on the Potvin 425. Then you will see it is listed a compe***ion only camshaft and WHY. http://books.google.com/books?id=It...ed=0CEkQ6AEwBQ#v=onepage&q=potvin 425&f=false
im running a Potvin 425 in a 304ci motor, for racing only. the lobe ramps are real steep so the valves open and close fast...at high rpm its a great cam and pulls hard up to 6000 rpm. its really a compe***ion only cam. you can run it on the street but your valve train will probably be short lived... a Potvin 3/8ths would be better... its a *****in cam. HAMB member Pete1 is an old cam grinder and can give you real world experiences. if you are dead set on a 425, go with a larger displacement... 296-300+ ci. video of initial run in with a 425, 100% methanol. http://s15.photobucket.com/albums/a353/plan92/bonneville2011/?action=view¤t=MVI_4983.mp4
The Potvin Eliminator is a bit much for the street. A Harmon Collins 408 #6372 worked nicely in my 286 ci flatty, but that was with pretty extensive port, valve and combustion chamber work. A little weak on the bottom but 2200 - 5500 was an *** kicker. The sound at idle would usually draw attention, loped enough to rock that big ol' Merc side to side just a little but not too radical. Sure would like to find another.