ZR-1 Net Registry Forums - Winter Project

Page 2 of 2

Show 40 post(s) from this thread on one page

ZR-1 Net Registry Forums (http://zr1.net/forum/index.php)

- C4 ZR-1 Technical Postings (http://zr1.net/forum/forumdisplay.php?f=9)

- - Winter Project - Intake Valve Upgrade (http://zr1.net/forum/showthread.php?t=26096)

Jagdpanzer

02-14-2016 12:02 PM

Re: Winter Project - Intake Valve Upgrade

Together with new cams target is around 50 hp.
Dom, are you referring to the Cosworth lifters I recall Sam mentioning a while back. Has anyone seen a spec sheet on these?

SAM/CH ZR-1

02-14-2016 12:32 PM

Re: Winter Project - Intake Valve Upgrade

Phil,

Did you install bigger valve seats?

Jagdpanzer

02-14-2016 01:36 PM

Re: Winter Project - Intake Valve Upgrade

Yes, 42.85mm OD

XfireZ51

02-14-2016 11:36 PM

Re: Winter Project - Intake Valve Upgrade

Quote:

Originally Posted by Jagdpanzer (Post 238340)

Together with new cams target is around 50 hp.
Dom, are you referring to the Cosworth lifters I recall Sam mentioning a while back. Has anyone seen a spec sheet on these?

Not sure if Cosworth or Porsche. I know Sam can fill you in on them. A set of them is circling O'hare right now as I understand it. Significantly lighter I was told.

SAM/CH ZR-1

02-15-2016 12:41 AM

Re: Winter Project - Intake Valve Upgrade

Quote:

Originally Posted by Jagdpanzer (Post 238340)

Together with new cams target is around 50 hp.
Dom, are you referring to the Cosworth lifters I recall Sam mentioning a while back. Has anyone seen a spec sheet on these?

I did send out before to the company a stock LT5 lifter for measuring and checking all components and sizes and if the light lifters match. Also I told them about the weight of all moving parts and the spring pressures. The leight lifters can handle with.

All times are GMT -4. The time now is 12:00 AM.

Page 2 of 2

Show 40 post(s) from this thread on one page