keep in mind that for any given cam, the power range will start and finish about 1000 rpms lower on a 5k, as compared to a 4k.

mind the camtech cams friend has one turn up without the hole in it for the pully locating dowl, to fix it the camtech guy held it in one hand and bored a hole in it with a cordless drill, got to wonder how exact they are!

well i ran a wanted add in the quokka for standard engine parts. and i have a few irons in the fire, camshaft enginring has two jigs , one a stage two mild grind or a stage four WILD grind based on the serria cosworth. maybe i just get both :D

well i ran a wanted add in the quokka for standard engine parts. and i have a few irons in the fire, camshaft enginring has two jigs , one a stage two mild grind or a stage four WILD grind based on the serria cosworth. maybe i just get both :D

 

Same cam as i have in mine now Chris,the wild one,

 

A3 grind,the A2 grind is a little milder,which i also have here.

Edited May 19, 200620 yr by madrolla68

have you got some specs for those cams? would be interested to add them to the dyno2000 camfiles i have.

have you got some specs for those cams? would be interested to add them to the dyno2000 camfiles i have.

 

Yeah mate ill grab them for you tomorrow,I'm off for a championship go-kart race tonight so a bit busy.

have you got some specs for those cams? would be interested to add them to the dyno2000 camfiles i have.

 

Ok man here you go.

 

A2 40/76 296 degrees duration. 220" Lift at the cam. Tappet clearance IN 0.020" EX 0.022"

 

A3 50/86 316 degrees duration. 240" Lift at the cam. Tappet clearance IN 0.020" EX 0.024"

thanks.

 

geez, they are not very generous in the lift department. how does it go in your engine?

Edited May 20, 200620 yr by Felix

thanks.

 

geez, they are not very generous in the lift department. how does it go in your engine?

 

Yeah good,don't want to use really big lift in these engines i find,just what ive found anyway.

the bigger grind you have listed has only 0.360 thou (gross) at the valve....

 

i sort of think they should have bumped up the lift for the translation over to k series. a 5k just doesn't have anywhere near the valve curtain area of a cosworth 4 valve head.

 

anyway, hope it works for you. :)

Edited May 21, 200620 yr by Felix

the bigger grind you have listed has only 0.360 thou (gross) at the valve....

 

i sort of think they should have bumped up the lift for the translation over to k series. a 5k just doesn't have anywhere near the valve curtain area of a cosworth 4 valve head.

 

anyway, hope it works for you. :)

 

Yeah i think youre right ,which is why i am using the bigger valve area.

fair enough, probably help even things up.

 

what type of valves have you got in there? sizes? compression ratio?

so will that make much diffrents with my standard head?

fair enough, probably help even things up.

 

what type of valves have you got in there? sizes? compression ratio?

Not sure on the exact size but there is like .030" between the two valves,the comp ratio is only 10.5 to one.

 

Have you run the cam on the DYNO2000 program Vs other cams yet like the CAMTECH 609.

so will that make much diffrents with my standard head?

 

 

What you talkin bout chris??????/