What pipe and header length?

[tom galdys]

Got myself a new CMB VAC 21 and since the exhaust goes straight out the back, what should be the length of both? Have an S-Pipe,3280, and others. Advice please. Oh Yeah, It is for my Zipp JAE 21. Thanks Tom

 

[julianconde]

OPS 3280 work really well at 7 3/4 - 8 inches it will be good for you

 

[tom galdys]

Thanks Julian but what do I cut? Header,pipe or both? Tom

 

[Neil LaGarry]

you better let me have that engine.Tom I could use a good engine this season. I also have a .21 engine coming out this spring.21 hydro will be rocking this season.

 

[Butch Londrigan]

You may have to cut both to get it to 7 3/4.

 

[moparbarn]

tom, s pipe as short as it will launch. cut the header first, then the pipe if you run out of header. you will prolly end up under 7 3/4" B)

 

[julianconde]

Thanks Julian but what do I cut? Header,pipe or both? Tom

dont cut the pipe just the header ok.. dont make that mistake.. you should have plenty to make some adjustments if not then cut as little as possible from the pipe

Julian