transam69230

iTrader: (49)

I am looking at some untouched TFS heads, and I need a few questions answered. How much can I mill the TFS heads to work with this cam? I want to get my compression to 11-1, and was told that I need to mill the to 59cc to get that. I have a forged shortblock and have -2cc valve reliefs already in the pistons.

Cam specs are :


I am thinking if I get the heads milled .030 that would get me to 59cc correct?

On a side note, think I should change cams? The car a strip/street warrior. Only comes out on nice days in the summer, sees the track 5-6 times a year. I have a full drag wheel setup and 6pt bar, nitrous, minor weight reduction. What cam matches well with the TFS heads, and 150-250 shot of nitrous?

PREDATOR-Z

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transam69230

iTrader: (49)

Thank you very much your help is appreciated!

Would i have PTV clearance issues for what i want to do?

tnmotown

iTrader: (107)

subscribed.

I have the same cam with stock heads and car rips already. Would like to know also how much those heads will benefit. But i dont have valve reliefs and would have to flycut with 59cc

tnmotown

iTrader: (107)

whoops... double post

transam69230

iTrader: (49)

I currently have 243s on the car, that are milled down. I don't remember how much but I do have -2cc cuts in my pistons so it helps some. If someone wants a set of 243s with PRC dual springs good to .650 lift.

tnmotown

iTrader: (107)

Not to hijack but just curious, what numbers did you put down with the 243 heads and g5x3 cam?

But on the other hand yeah 59cc should bump you to about 11:1 comp. And with the valve reliefs I believe you might be close. Still wanna check it though

transam69230

iTrader: (49)

Current numbers through a stalled a4 and dana s60 rearend are 400rwhp and 410trq.

I guess I have never checked PTV, how to measure for purshrods, or valve wipe, I have been trying to search and learn. So anyone want to explain some of the procedures to me?