Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Technical BBS > 1- Porsche Technical Forums > 911 Engine Rebuilding Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: Oct 2011
Location: Carignan, Quebec.
Posts: 11
2.7 camshaft selection

I recently increased my 1973 2.4l to 2.7l with non-rs pistons etc. I have a set of early Solex 109-110 cams which have too much overlap to run with C.I.S. Any suggestions on cam selection for this combo. Also, I have a set of 16x6 Fuchs for the front of my 911 & 16x7 for the rear. What's the biggest tire I can run on the rear without any clearance problems. Any input is appreciated. Thanks, Craig.
Old 02-10-2018, 08:45 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered User
 
Join Date: Oct 2008
Location: Nash County, NC. Just west of Rt 95
Posts: 6,592
As long as you are using standard CIS pistons, your choice is CIS 2.7 cams. Not having done it, installing 3.0/3.2 cams should work too but you ll need cam carriers to go with the later cams.
Bruce
Old 02-10-2018, 01:36 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
Join Date: Nov 2016
Location: Mt. Washington/Los Angeles
Posts: 713
Garage
I Once had a 2.7 with CIS stock pistons with a 964 grind. Seem to pull hard. I ran it with carbs and port and polished heads.
Old 02-10-2018, 02:30 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Under the radar
 
Trackrash's Avatar
 
Join Date: May 2007
Location: Sebastopol, The Republic of California. Land of wine and redwoods.
Posts: 4,592
Garage
I don't know why you couldn't get your cams reground to something equivalent to what the SCs and Carreras had.

In the rear I know that some have shoehorned 225s on the rear. Those might rub, depending on your alignment settings, ride height, actual tire size, and bead rolling however.
__________________
Gordon
_____________________________________
'71 911 Coupe 3,0L outlawed
#56 PCA Redwood Region, GGR, NASA, Speed SF
<< See my Garage
Old 02-10-2018, 04:11 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered User
 
E Sully's Avatar
 
Join Date: Nov 2008
Location: NY
Posts: 2,970
Garage
You can consider the 2.7 CIS 'S' camshafts. I picked up a set to use in my 2.4 CIS rebuild.
__________________
Ed
1973.5 T
Old 02-11-2018, 05:03 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered User
 
JmuRiz's Avatar
 
Join Date: Nov 2000
Location: Arlington, VA
Posts: 1,029
Garage
I bought a set of SC-grind cams (3 lobe)for 2.7 CIS pistons for my rebuild, but had to get new pistons when my build went from a cam-swap to a full on rebuild.

PM me if interested, they are good cams, just couldn't use them anymore.
Or if you'd like a 2nd set to send out for regrind, I have a set of stock '77 2.7 cams too.
__________________
'74 911 with '83 SC engine
'73 2.0 914 (2.7 /6 conversion in progress)
'64 356SC
'02 S6 Avant
'99.5 A4 2.8 / '65 Ducati Falcon 80
Old 02-12-2018, 05:58 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 11:08 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.