Pelican Parts Forums

Pelican Parts Forums (http://forums.pelicanparts.com/)
-   Porsche 911 Technical Forum (http://forums.pelicanparts.com/porsche-911-technical-forum/)
-   -   Engine upgrade recommendations (http://forums.pelicanparts.com/porsche-911-technical-forum/235930-engine-upgrade-recommendations.html)

ChrisBennet 08-15-2005 05:10 AM

If you want to use the car for a stock class (w/out cheating I mean) I would see just what your options really are. In "F" stock I don't think you have many "upgrade" options.

These are my non-expert thoughts:

Instead of "upgrading" I would concentrate on reliability and not loosing the power you already have by addressing the fundamentals.

I'd replace the lower head studs with the cheap 993 steel head studs ($8-10 each) and spend the money save on track days. Really, is anyone having head liftoff with stock 3.2 compression?

(If you split the case)
I'd deck the case spigots to true them up and if it improved your deck height and bumped your compression a smidge that's just lucky isn't it. ;)

I'd get your injectors cleaned and flowmatched.

I'd make sure the intake gaskets weren't sticking out into the air flow.

I'd make sure you were getting a good piston to cylinder seal and address or improve this as your budget allows.

I'd replace the rod bolts with ARP ones and have the rods rebuilt.

Make sure your sensors are working correctly. I'd replace the head temp, speed and reference sensors if they are the originals.

Balance what you can.

-Chris

JeremyD 08-15-2005 05:27 AM

can you go with euro pistons and cylinders?

ChrisBennet 08-15-2005 05:29 AM

Quote:

Originally posted by JeremyD
can you go with euro pistons and cylinders?
It would bump him up to "Prepared" (from F Stock).
-Chris

chuckr 08-15-2005 06:18 AM

For a track car with limited extra money, I'd do a
high quality rebuild on the motor, by high quality I mean
top of the line parts and top of the line machine work (EBS)
realiability is the key to any rebuild especially when money
is an issue. I'd upgrade the headers/exhaust and go with
a Steve Wong chip, do the air box mod. You can always
go back and do other mods later as money permits.
Good Luck
Chuck

Tim Stevens 08-15-2005 07:05 AM

I would never cheat!!! I here this is a very fair group to run with – no one EVER cheats. Jeremy I cannot go with the Euro pistons and cylinders because if I did I would be a cheater…. Brian is in the same class as I am so we need to keep it fair! I would hate to humiliate him on the track. But just to keep my options what type of cams would you all recommend? What I am looking to do is 1) dependability 2) add some HP 3) not have to break it open for a long time in the future 4) dependability

Thanks for all the advice thus far!

ChrisBennet 08-15-2005 07:14 AM

Quote:

Originally posted by Tim Stevens
I would never cheat!!! I here this is a very fair group to run with – no one EVER cheats. Jeremy I cannot go with the Euro pistons and cylinders because if I did I would be a cheater…. Brian is in the same class as I am so we need to keep it fair! I would hate to humiliate him on the track. But just to keep my options what type of cams would you all recommend? What I am looking to do is 1) dependability 2) add some HP 3) not have to break it open for a long time in the future 4) dependability

Thanks for all the advice thus far!

Changing the cam (or chip) will bump you out of F Stock but if you're already in Prepared (for big brakes or some reason) a 964 cam + chip will give you a little HP. If you change the cam you really should have the rockers redone. The 964 cams have less piston to valve clearance so you're looking at stiffer valve spring$ and possibly retainers as insurace to reduce the chance of contact on a missed shift. It all adds up...

-Chris


All times are GMT -8. The time now is 07:19 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website


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