Re: I'm not trying to start a color war

Posted by Ron Satzler on May 23, 2005 at 20:15:05 from (207.179.192.93):

In Reply to: Re: I'm not trying to start a color war posted by Dave 2N on May 23, 2005 at 18:48:26:

The early 50"s A"s and M"s are listed in the Nebraska test as having about the same drawbar hp;34. The A has a 2.5 mph low gear and the M has a 2.6 low gear.

My observations are that both the standard A and the standard M would generally kill on the track and not spin out.

The M was easier to "soup up" because it was a sleeved engine and a four cylinder. A simple oversize sleeve gave a double increase because it increased both the displacement and the compression ratio. This is how the M became a super M.

For the A, high compression pistons without the expensive process of boring the block did not increase the displacement on the A so the hp gain was generally less.

The four cylinder engine was better balanced so increasing the rpm of the M engine 10% was generally without bad effects. Increasing the rpm of the poorly balanced two banger was less desirable.

Overall, this made the M a preferred tractor to use to get heavy work done. The M Farmall, DC Case and 44 Massey had similar 4 cylinder engines and could quite easily be tuned to significantly out work the A John Deere.

Follow Ups:

Post a Followup Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

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 ]