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May 13, 2018 | 09:23 AM

Kim Hil

Thread Starter

Cruising

Joined: Nov 2017

Posts: 11

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New Cam

I'm having a Comp Cam Extreme 266hr-14 cam installed in my 95-C4.

Is there anyone that has experience with the performance of this cam?

Does it have a good sound?

Last edited by Kim Hil; May 13, 2018 at 09:24 AM.

May 13, 2018 | 03:03 PM

84 4+3

Le Mans Master

Joined: Aug 2017

Posts: 6,937

Likes: 1,487

From: New Jersey

I wouldn't add a cam just for sound. However you're adding about 6 degrees of duration. It should sound somewhere between stock and the lt4 hot cam if I had to guess... Should run well.

May 14, 2018 | 12:33 PM

Mr. Peabody

Le Mans Master

Joined: Oct 2004

Posts: 7,706

Likes: 485

From: Everett WA

C4 of Year Finalist (appearance mods) 2019

I hope that you are replacing the springs at the same time.

While you are in there; replacing the stamped factory rockers with roller rockers will bring back some of the HP that is absorbed by the friction of the non-roller oem rockers.

May 14, 2018 | 01:18 PM

whalepirot

Melting Slicks

Joined: Jan 2008

Posts: 2,054

Likes: 120

From: AZ

Quote:

Originally Posted by Mr. Peabody

replacing the stamped factory rockers with roller rockers.

Not changing lifters might void the cam warranty.

May 14, 2018 | 06:20 PM

Kim Hil

Thread Starter

Cruising

Joined: Nov 2017

Posts: 11

Likes: 0

new cam

Quote:

Originally Posted by whalepirot

Not changing lifters might void the cam warranty.

You are correct. I bought the kit. Cam, lifters, springs, rockers.

Thanks for the input.

May 17, 2018 | 03:14 PM

64Scout

Burning Brakes

Joined: Oct 2017

Posts: 823

Likes: 106

From: Somewhere near Fort Wayne, Indiana

Quote:

Originally Posted by Mr. Peabody

[Url]

Last edited by 64Scout; May 17, 2018 at 03:15 PM.

May 17, 2018 | 08:18 PM

jayjones

Racer

Joined: Mar 2018

Posts: 411

Likes: 97

From: Las Vegas

Quote:

Originally Posted by 64Scout

https://youtu.be/TvQHgt-tF7Y

TL;DR tested several different rockers incl roller and ball. The only hp difference found was probably due to ratio (1.5 vs 1.6). Many factors have to be considered such as float resistance etc, but in the test none of it seemed to make a difference.

May 18, 2018 | 06:27 PM

Mr. Peabody

Le Mans Master

Joined: Oct 2004

Posts: 7,706

Likes: 485

From: Everett WA

C4 of Year Finalist (appearance mods) 2019

Quote:

Originally Posted by 64Scout

[url]https://youtu.be/TvQHgt-tF7Y

Thank you! That was very interesting.

Yes I was surprised as I had always been under the impression that friction within the valve train components robbed available HP and that full rollers would significantly help that situation.

That's why I love this forum..... learn new things every day.