The Cal-look Lounge
Welcome, Guest. Please login or register.
Did you miss your activation email?
November 23, 2024, 05:50:26 am

Login with username, password and session length
Thank you for your support!
Search:     Advanced search
351205 Posts in 28655 Topics by 6854 Members
Latest Member: 74meanmachine
* Home This Year's European Top 20 lists All Time European Top 20 lists Search Login Register
+  The Cal-look Lounge
|-+  Cal-look/High Performance
| |-+  Pure racing
| | |-+  JPM Raptor cams
« previous next »
Pages: [1] Print
Author Topic: JPM Raptor cams  (Read 4099 times)
69Stu
Jr. Member
**
Posts: 86



« on: July 05, 2015, 10:31:41 am »

Hi,
Can any one tell me if the quoted duration numbers for the Raptor cams are measured at 0.050" like other cams, and if the lift numbers are with 1.4 or 1.5:1 ratio rockers. Just trying to determine which one would be suitable for setup.

Thanks.

Stuart.
Logged
Erlend / bug66
Global Moderator
Hero Member
*****
Posts: 958

SCC Event


WWW
« Reply #1 on: July 05, 2015, 12:06:14 pm »

At 0,05" yes.

The lift in mm is on the cam
Logged

The '67:
10.626 @ 132mph, SCC 2016
10.407 @ 134mph, SCC 2017
10.221 @ 135mph, SCC 2018

The '59:
Not yet..
neil68
Hero Member
*****
Posts: 538



« Reply #2 on: July 05, 2015, 19:38:42 pm »

Can any one tell me if the quoted duration numbers for the Raptor cams are measured at 0.050" like other cams, and if the lift numbers are with 1.4 or 1.5:1 ratio rockers.

It depends on the source of the quote.  On the CSP website, the advertised duration numbers range from 288 to 332 degrees, so that doesn't appear to be at 0.050" (1.27 mm).

On the JPM website they vary from 251 to 293 degrees (which appears to be at 0.050").  My Raptor cam card only shows the duration at 0.050" (274) and cam lift 10.8 mm.
« Last Edit: July 05, 2015, 19:40:43 pm by neil68 » Logged

Neil
Der Kleiner Rennwagens
'68 Beetle, 2332 cc, 204 WHP
12.5 seconds @ 172 KM/H (107.5 MPH)
Dynojet Test:  https://www.youtube.com/watch?v=M9B_H3eklAo
JS
Hero Member
*****
Posts: 1628



« Reply #3 on: July 05, 2015, 21:24:56 pm »

Hi,
Can any one tell me if the quoted duration numbers for the Raptor cams are measured at 0.050" like other cams, and if the lift numbers are with 1.4 or 1.5:1 ratio rockers. Just trying to determine which one would be suitable for setup.

Thanks.

Stuart.

Hi Stuart, call Johannes and he will suggest or make you one to fit your setup!
Logged

Signature.
69Stu
Jr. Member
**
Posts: 86



« Reply #4 on: July 06, 2015, 12:49:15 pm »

Thanks for the information.
I have e-mailed Johannes, but haven't had a reply yet. Just trying to work out is one of the standard (CSP listed) cams would be suitable.
Logged
Pages: [1] Print 
« previous next »
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!