Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Tractor Pulling Discussion Forum

Extended rockers

Welcome Guest, Log in or Register
Author 
Donnie T

03-21-2006 17:28:16




Report to Moderator

What kind, if any, power increases do you recieve from installing a set of these? Thanks for the help.




[Log in to Reply]   [No Email]
BBarenie

03-21-2006 19:16:57




Report to Moderator
 Re: Extended rockers in reply to Donnie T, 03-21-2006 17:28:16  
Performance rockers will not help much and will probably cut mid to low end torque !

I refuse to advertise for any company and or individual, but in your situation, because of what I no, there is one individual, who can increase engine performance, staying at the cubes your already at !
What i'm talking about is the mid to low end torque curve !
I would ask that you call Gary Baker at # 734-678-9688
Don't waste his time, just do the business

You will not be disappointed !

bud barenie

[Log in to Reply]  [No Email]
Donnie T

03-21-2006 17:30:43




Report to Moderator
 Re: Extended rockers in reply to Donnie T, 03-21-2006 17:28:16  
These are for a Farmall M at 300 cubes. Have a good reground cam. Running about 75hp know. Looking for something to get me about 80+. Sorry for the 2 posts. Got excited and closed the first one out.



[Log in to Reply]  [No Email]
Drew

03-21-2006 19:10:09




Report to Moderator
 Re: Extended rockers in reply to Donnie T, 03-21-2006 17:30:43  
The rockers will probably get you to 80hp. The rockers do not replace a reground camshaft and a reground camshaft does not replace the rockers. Depending on what your camshaft is, you will probably want a split ratio setup(1.9 intake and 1.7 exhaust) The rockers add 'area under the curve'--they open the valve quicker and increase duration at .050, .100, .200 lifts, etc. w/o increasing total overlap.

I have heard about a 281" M engine that gained 7hp by just adding the rocker arms.

[Log in to Reply]  [No Email]
CrazyAllis Kurt Hamel

03-21-2006 18:54:16




Report to Moderator
 Re: Extended rockers in reply to Donnie T, 03-21-2006 17:30:43  
If your cam is ground correctly for the stock rocker arm ratio you will see no gains and can possibly even a slight loss.If you do see a significant gain your cam was not correctly mached to your engine specs.These seem to work best as a way to gain power on stock cams, but I feel it is a pretty poor power per dollar investment as the rockers cost more than regrinding a cam costs.



[Log in to Reply]  [No Email]
Joshin Around

03-23-2006 09:25:50




Report to Moderator
 Re: Extended rockers in reply to CrazyAllis Kurt Hamel, 03-21-2006 18:54:16  
I would say that it would help it. It would make the valve open farther thus allowing more air into the cylinder. The low end torque I dont know about if you are running higher rpms I dont think that it would matter.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy