D15 Puller
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=89410
Printed Date: 24 Nov 2024 at 5:35pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D15 Puller
Posted By: BrianC,Ont
Subject: D15 Puller
Date Posted: 11 May 2014 at 9:01pm
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Does anyone have a D15 puller. I want to make a little more power with ours. Is there a cam available for the 160, how much can I mill the head for more comp. I am not going to go as far as stroking or overbore. I will do some carb mods. What gov spring and weights would be good. I am running 13.6x38 tires. I will have to run it in the 4500 class. When we stripped it down and built a light seat for it, it still weighed 3575 with my dad on it and he is 150lbs lighter than me. ------------- 35WC on steel, B with belly mower, D17 puller, D15 Series II puller, D15 Series II with loader, 608 Lawn Tractor |
Replies:
Posted By: O.P.S. Heads
Date Posted: 11 May 2014 at 9:41pm
| I don't know much about the gassers like many do on this forum. I do know that the cylinder head is flat so machining it will have zero affect on the compression. |
Posted By: DrAllis
Date Posted: 11 May 2014 at 11:03pm
| One inch diameter carb venturi would help from a 175 tractor, or a larger carb altogether. You are pretty well maxxed out on a G-160 engine without tearing it down and making custom parts. Cylinder head is flat-------no compression gain without changing pistons or crank stroke or conn rod length. |
Posted By: BrianC,Ont
Date Posted: 12 May 2014 at 9:17pm
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Ok, thanks guys. I thought the 160 had a combustion chamber in the head. ------------- 35WC on steel, B with belly mower, D17 puller, D15 Series II puller, D15 Series II with loader, 608 Lawn Tractor |
Posted By: desertjoe
Date Posted: 16 Jun 2014 at 11:18pm
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I'm just thinking out loud here, cause I've never fooled with an engine that has the combustion chamber on the piston. I wonder if a person could have the block milled and liner pockets relieved and bump up the compression ratio to produce HP ? You would then have to mill the top of pistons by same amount. Don't have any idea howmuch to take off,,,but I'm bettin, some of the pullers are already doing this,,,!! I dis-assembled a "B" some time ago, and was pleasantly surprised at the very efficient lookin chambers in the head. The chamber design Looked like something, a good cylinder head porter could re-work and produce some good HP. 
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Posted By: DrAllis
Date Posted: 17 Jun 2014 at 6:21am
| D-15 II LPgas pistons were 9 to 1 compression instead of 8 to 1 like a regular gas engine. |