05-25-2010, 03:27 PM
|
#1 |
|
Member
Join Date: May 2010
Location: Modesto CA
Posts: 37
|
Thumpr cam
I see Comp Cams is making a Thumpr cam for our flatheads, anyone have any experience with this one yet ?
|
|
|
|
05-25-2010, 06:13 PM
|
#2 |
|
Senior Member
Join Date: May 2010
Location: Oshkosh, Wi
Posts: 4,608
|
Re: Thumpr cam
If I remember right, it looks like they run a tight lobe center to give it the "thump", but this also kills low end torque. Need a long stroke and lots of compression to compensate, but then why bother.
|
|
|
|
| Sponsored Links (Register now to hide all advertisements) |
|
|
|
05-25-2010, 07:10 PM
|
#3 |
|
Senior Member
Join Date: May 2010
Location: Santa Rosa, Calif.
Posts: 403
|
Re: Thumpr cam
They are ground on an 106 lobe center, this is what gives this cam the sound....Ed
|
|
|
|
|
05-25-2010, 09:42 PM
|
#4 |
|
Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,985
|
Re: Thumpr cam
Anybody got the timing numbers??
|
|
|
|
|
05-26-2010, 12:37 AM
|
#5 |
|
Junior Member
Join Date: May 2010
Location: North Dakota
Posts: 11
|
Re: Thumpr cam
I copied this from Speedy's latest catalog.
Last edited by NDFlathead; 08-31-2011 at 04:37 PM. |
|
|
|
|
05-26-2010, 01:24 AM
|
#6 |
|
Senior Member
Join Date: May 2010
Location: Germany
Posts: 255
|
Re: Thumpr cam
Sponsored Links (Register now to hide all advertisements)
If that makes sense????? I don't think so... Maybe Pete can comment that cam design.... |
|
|
|
|
05-26-2010, 09:13 AM
|
#7 |
|
BANNED
Join Date: May 2010
Posts: 3,019
|
Re: Thumpr cam
Bum,
What Jack said....been there. My bone stock '35 sedan walks my '41 1/2 ton with an 8ba , 3/4 cam etc going up hills and away from lights....for the the first 6 car lengths. On the freeway or in open country of course the '41 creams the '35. Charlie ny |
|
|
|
 |
«
Previous Thread
|
Next Thread
»
Linear Mode
|
|
| Sponsored Links (Register now to hide all advertisements) |
|
|
All times are GMT -5. The time now is 11:41 PM.