301
Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=136899
Printed Date: 31 Oct 2025 at 5:09am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 301
Posted By: Bobo Husker
Subject: 301
Date Posted: 02 Apr 2017 at 9:41am
|
I have a stock 301D in a 190xt. Would like to bump up HP. I am reading that connecting rods may be a weak point. Could anyone give me input on what HP and boost they will hold up to? Thank you! |
Replies:
Posted By: DougG
Date Posted: 02 Apr 2017 at 9:43am
| Always heard that they can't take much more than 45 lbs of boost, timing affects this too, don't go over 36 degrees,, |
Posted By: Bobo Husker
Date Posted: 02 Apr 2017 at 9:47am
| Oh ok. Good to know. Any idea on how much HP before they scatter or is that not a concern? |
Posted By: DougG
Date Posted: 02 Apr 2017 at 10:19am
| If you stick with your turned up Roosamaster and a little turbo upgrade you should be fine, I pulled the crap out of a 200 turned up like this for a few years and no problem,, could pull in 5th in the 9000 class, mostly 4th tho, never had power issues |
Posted By: 200 allis
Date Posted: 02 Apr 2017 at 7:49pm
| A friend of mine runs a 190 with stock bottom out of a gleaner with an a pump more then 60lbs 4200 rpm for last 6 years |
Posted By: bsallis180
Date Posted: 02 Apr 2017 at 8:59pm
| Always better sate then sorry |
Posted By: WF owner
Date Posted: 03 Apr 2017 at 8:12am
Sorry = very expensive |
bsallis180 wrote:Posted By: bsallis180
Date Posted: 03 Apr 2017 at 5:43pm
| 2 cents: get hardened rods and wile you have the pistons out get the sleeves cut for fire rings and sleep easy. maybe go as far as cut pistons and copper gaskets |