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 Forums > Porsche Forums > Porsche 924/944/968 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: Feb 2004
Location: St. Louis - on the weekends, anyway; actually, most weekends...maybe I'm working too hard...
Posts: 17
S2 crank in 2,7L block....?

I would like to create what the factory never did, a 3.0L 8 valve NA engine. I have the ingredients: a good 2.7L engine and an S2 crankshaft. The plan would include having the reciprocating items all balanced and lightened, perhaps with knife-edging and boat-tailing along the way. I figure the output should fall somewhere in the same range as the 2.5L 944S or better, but with superior low end torque. Questions:

What compression ratio will I end up with (I assume the S2 crank will pull the stroke range a little lower in the cylinder)?

Any possible clearance problems - and if not, will I have comfort room for a slight head shave to bump the compression?

Are the 2.7L con rods compatible with the 3.0L crank journals? I would want to use the 2.7L's rods...

Any other problems with this concept?

TIA Skip
Old 02-11-2004, 07:03 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered User
 
Join Date: Feb 2004
Location: St. Louis - on the weekends, anyway; actually, most weekends...maybe I'm working too hard...
Posts: 17
Seems to be some debate on Rennlist about where the CR would end up, and whether new con rods would be needed...any ideas would be very much appreciated, as I need to buy this 3.0 crank pretty soon if at all. TIA Skip
Old 02-12-2004, 06:16 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
Join Date: Jan 2003
Location: New York
Posts: 891
I don't think the 2v pistons can be used...the 3.0L pistons (4v) are much shorter and have the wrist pin located lower than the 2.7L pistons for top and bottom clearance reasons - IIRC
__________________
Tom

Early '85 944

Last edited by carsontc; 02-12-2004 at 06:29 AM..
Old 02-12-2004, 06:25 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 11:35 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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.