TF Track Heat, 1.7RR & E303

[Fri Guy]

Is anyone running some Track Heat heads with 1.7RR's & a E303 cam? If so, did you have any problems with P/V clearance???

 

[GT_Rich]

FWIW - I run almost that setup (B instead of E). I clayed mine during the install and had a 1/4 inch of clearance. I would expect you to be alright, but since it only takes another 20 minutes, clay to be sure

 

[Fri Guy]

The B cam has more lift than the E cam, right?

 

[GT_Rich]

No - the B has less lift, but more duration. Remember, max lift is not what affects P-V clearance the most, it's the total cam profile. Think about it as which cam is quicker to get out of the way.

 

[Fri Guy]

So then I should have more clearance than the B cam?

 

[GT_Rich]

E cam: More lift, less duration
B cam: Less lift, more duration

Without a software program to run through the kinematics of the system, you need to check it. Simple as that. Clay is two bucks and it will take you 20 minutes.

 

[Fri Guy]

I understand that clay is $2 & it will only take 20 min but I don't want to buy the heads & RR's & it not work. That is why I was asking if anyone has had any problems with this set-up.