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 / 930 Turbo & Super Charging Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
GJF GJF is offline
Slantnose from HELL
 
GJF's Avatar
 
Join Date: Dec 2004
Posts: 799
As far as shuffle pinning. I don't care for the shuffle pins that are drilled in the material where the cases bolt together. JB Racing has a different approach which I feel is by far superior. They counter bore at the through bolt area on both sides of the cases and when the two halves bolt together they are indexed via a set of hardened tubular shuffle pins that mount around the bolts. This eliminates any weakening of the case as it removes minimal material and it gives a larger area for pinning the case halves without distortion. As other companies drill a hole in the cheek and add more stress on the cases and possibly causing cracking on the saddles.


EFI, by far would be the most brain bashing experience if you are not technically challenged but, anyone you ask who has done it would do it all over again as the end results are worth it.

I would go JE piston any day. The wives tails about them are false. They are just as durable. If you are a Mahle fan then they are just the ticket too. Either way you go they are both excellent products.

8.1 compression ratio would give you much better low end response.

twin plug is not needed but it is a good upgrade.

JB Racing has good retainers and springs for your cams
__________________
87 911 Carrera platform
Twin Garrett's, Big Valve, Xtreme Cylinder Heads, JB Racing cylinders and machine work, custom JE pistons, GT2 EVO cams, GT3 oil pump, modified 3.2L intake, 80mm TB, custom Intercooler, equal length headers, DFI, KEP Stage 2 custom twin disc, G50 custom gear set, LSD, Tilton trans pump, Fluidyne cooler
Old 07-21-2008, 02:56 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #41 (permalink)
Registered User
 
Join Date: Apr 2008
Posts: 93
I spoke with Mike at JB today and I think I will be letting them perform the machine work on my heads and crank. I will be sticking with the stock 3.3 p/c's as there in too good of shape to not use. That is if the stock pistons can hold up to what ever it takes to produce 400 reliable RWHP. I have not looked into it much but what makes the Euro exhaust so much better than the US version? Is it just the lack of a Cat?

Mike
Old 07-21-2008, 03:18 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #42 (permalink)
Registered User
 
930gt-40r's Avatar
 
Join Date: Jan 2007
Location: Boca Raton, FL
Posts: 2,063
Quote:
Originally Posted by GJF View Post
As far as shuffle pinning. I don't care for the shuffle pins that are drilled in the material where the cases bolt together. JB Racing has a different approach which I feel is by far superior. They counter bore at the through bolt area on both sides of the cases and when the two halves bolt together they are indexed via a set of hardened tubular shuffle pins that mount around the bolts.

I like this idea as well, many high RPM motorcycle engines are drilled the same way that JB does our stuff.
__________________
Kris @ Tech9
86' 930/GT-40R Sold
94' Rustang GT daily (long gone)
2008 C6/Z51 Corvette
Old 07-21-2008, 05:10 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #43 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 08:36 PM.


 
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.