any body out there make any big gains running a race head on a larger bore ds motor? my machine is now making less power with the shim under work and bigger cams an ever befor. i have lost 10-12 hp going shim under and pami race grind cams? im sure that somthing happened during the machining procress for shim under to cause this but i'm back to making 45hp @ the tire and pissed[img]i/expressions/face-icon-small-disgusted.gif[/img]

 

Something's not right.

I am running the Pami Race 1 cams, Pami Race Head (larger valves), Shim Under and the 760. I haven't put it on the dyno but, it COOKS!

Which cams are those? Race 2's or their full race cams?

I have a buddy with the Ron Wood Race 7's on his stock bore and I just don't know about them.

Something doesn't sound right. Do a lead-down test and see how things look. Depending on the dyno you should have 55 (we have a real conservative dyno here) to 70 HP.

I don't know much about the MBRP but, could things be clogging up on the a$$ end? I put the Ron Wood on the same time I did all the other work. I know I need to get the jetting right but, I sure can feel the power! I think I had 52 HP before (again, our dyno is low). I probably have about 60HP on the dyno we use now.

 

this things runs just flat and lazy, i ran a stockish kfx 700 and got beat bad!!! samcoe you there??

 

WOW! Something's definatly very wrong!

 

duneme, i have pami's #4 RACE CAMS intake and exhaust, how much was you'r pami race head? is it and stock head worked over or a new part all together?

 

a guy out here has the 109's and his runs pretty good.

 

[img]i/expressions/face-icon-small-confused.gif[/img][img]i/expressions/face-icon-small-cool.gif[/img]

 

Race grind cams -- are we talking .450 lift? ding ding ding.

 

I got the head as a re-worked item from Pami. It was about $1k + valve sprins, buckets, shims, cams, etc.