 /4 shortblock assembly + HP limits, case, crank and rods....how much abuse?? |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| Mueller |
 Mar 5 2004, 10:48 AM
Post
#1
|
|
914 Freak!  Group: Members Posts: 17,155 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
 |
Let's say we take the stock heads and cylinders out of the picture and use heads/cylinders that are overkill and robust....
what is the next weak link in the motor? are the rods going to fail once we start hitting the 200+hp mark? will the stock crank turn to putty at 7000rpm? what about the case?? at what HP range before it cannot hold everything together and gives up scatering it's internals all over??? |
   |
 
|
  |
Replies
| Brett W |
Mar 5 2004, 10:58 AM
Post
#2
|
|
Advanced Member Group: Members Posts: 2,859 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None
|
Mike,
HP limits will depend on what type of aspiration is used. If you are going to a NA high hp motor then the rods are way to heavy to be turning the RPMs needed to make the power up high. The crank is plenty strong. Long strokes in conjunction with high rpms will cause case walk and pounding of the main tunnel. Unfortunately VW didn't put a 5 main crank and case to this package. If you go with a boosted application then the stock rods should be alright with good bolts. The stock crank can handle 600+hp. Ask Dave Sadler. He was running stock based bottom end at 30lbs of boost. Stock crank, probably aftermarket rods, 94mm bore and Pauter heads. |
|
|
|
Posts in this topic
Mueller /4 shortblock assembly + HP limits Mar 5 2004, 10:48 AM
Bleyseng :agree:
In anything over 120 hp the rods are the ... Mar 5 2004, 11:10 AM airsix I saw the title of this thread and thought "I bet ... Mar 5 2004, 11:21 AM Mark Henry Cam and lifters, go with ceramics.
For 200hp it... Mar 5 2004, 11:24 AM Brett W Guys horsepower does not kill parts. 120 hp will ... Mar 5 2004, 11:27 AM davep I remember Chuck Stoddard say that the case needed... Mar 5 2004, 11:42 AM john rogers I tried running the 200 HP stroker four for severa... Mar 5 2004, 11:57 AM Jake Raby The case is good for 250HP with the correct work (... Mar 5 2004, 12:43 PM ArtechnikA ... Mar 5 2004, 08:40 PM Jeff Bonanno wassa shotpeened? Mar 5 2004, 09:08 PM
Brett W I haven't heard anyone say that Pauter rods ar... Mar 5 2004, 11:12 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 12th July 2025 - 10:37 AM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.