6080 torque rise
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=99454
Printed Date: 08 Sep 2025 at 10:27am
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Topic: 6080 torque rise
Posted By: DougG
Subject: 6080 torque rise
Date Posted: 25 Dec 2014 at 1:56am
| I always hear the 6000 series has such great torque rise ,then the other day Mark , wrote they didn't need a PD because of the tremendous torque rise ; just wondering why ? What was special in the engine to do this? |
Replies:
Posted By: DrAllis
Date Posted: 25 Dec 2014 at 8:01am
| Turbo-charger, intercooler and injection pump internal settings. The 200 pound clutch/flywheel doesn't hurt any either. |
Posted By: SteveM C/IL
Date Posted: 25 Dec 2014 at 6:13pm
| Hey Doc! Did they use different system setup on my F2 combine? Plenty of power at speed but seems lazy down low.Just figured it was normal/okay in a combine situation. |
Posted By: injpumpEd
Date Posted: 25 Dec 2014 at 6:56pm
|
The combine pump setting is nearly the same. ------------- 210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers! |
Posted By: DrAllis
Date Posted: 25 Dec 2014 at 7:50pm
| Engine has to be running at about 1700 RPM before the turbo spools up. |
Posted By: ac45
Date Posted: 25 Dec 2014 at 10:11pm
| Difference between torque rise and low end torque. A turbo engine will hang in better and not pull down as fast from rated rpm. But there can be non turbo engines with better low end torque . |
Posted By: DougG
Date Posted: 26 Dec 2014 at 6:34am
| A 6080 has to be over 1800 rpm,s or they fall flat on there face |
Posted By: DrAllis
Date Posted: 26 Dec 2014 at 6:49am
| Well then, I'd be checking injection pump timing and probably retard it 2 degrees to help that. |
Posted By: DougG
Date Posted: 26 Dec 2014 at 9:17am
| It was dead on , so ill check that |
Posted By: tbran
Date Posted: 26 Dec 2014 at 2:12pm
| War story: We demo'd a 6080 (right at 95hp on the pto) against a new 2940 or 50 pulling a 2 row silage cutter. The customer was cutting when we arrived and we switched to the 6080. The AC pulled it great - for nearly 2 hours. The young farmer tried his best to find something wrong, finally he said he would buy it if it only had a high low shift on the go. (he had bought the Deere we later found) We hooked the deere back up and I rode with him and he showed me how when it hit the swags he could shift back and keep the rpm up. I noticed we were going slower so I got off checked the speed listing on the 6080 and informed him he was a main gear shy of the what the 6080 was being run in - so he shifted up - and the tractor was lugging. We got to the end and I thanked him and as I was walking off I smelled something, looked at the 359ci deere engine and it was covered with oil and water - blown head gasket. We loaded up the 6080 and went to the shop. I called back the next morning and he said Deere brought out another new like deere tractor - it blew a head gasket as well. He had the nerve to ask if he could 'demo' the 6080 and finish the field..... |
Posted By: 427435
Date Posted: 26 Dec 2014 at 7:24pm
We would have loved to find a 85 hp transmission with a PD capability at an affordable price. At the time (if I remember right), there were no other under 100 hp tractors being built in the US other than the 175/185 tractors. The thought was that a tractor with a high torque rise and a syncro tranny would satisfy many people----------especially when it had a lot of US components and was assembled in the US. If you look at the Nebraska tests, the 6080 is one of the few tractors (especially under 100 hp) that has more hp on the lugging test when it is pulled down. http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=2767&context=tractormuseumlit" rel="nofollow - http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=2767&context=tractormuseumlit The 2840 Deere falls off quickly. http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=2618&context=tractormuseumlit" rel="nofollow - http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=2618&context=tractormuseumlit ------------- Mark B10 Allis, 917 Allis, 7116 Simplicity, 7790 Simplicity Diesel, GTH-L Simplicity Ignorance is curable-----stupidity is not. |
DougG wrote:Posted By: tbran
Date Posted: 26 Dec 2014 at 9:10pm
|
I remember a conversation with someone about a 5 speed power shift for the 6000 series that Fiat was involved in about the end times of AC.
Joe Coleman of J&J Glasgow Ky and I went to a sale in Indiana where a lot of AC bits and pieces wound up . In a barrel I scrounged through was a stamped aluminum quadrant with 1-5 and a wire harness. It had a late AC triangle stamp on it. We were told a lot of the items came from AC engineering scrap. Was it the 5 speed shifter ? Who knows.. I know of no other 1-5 aluminum shifter AC used on anything Ag or industrial.
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Posted By: ranger42
Date Posted: 27 Dec 2014 at 8:28pm
That would have been sweet! It would have made a real good tractor great in my opinion. |
Posted By: Michael (WI)
Date Posted: 28 Dec 2014 at 9:48pm
|
In my younger days my Uncle had a 2950 FWA which I drove often. The couple things I miss about it, compared to the 6080 FWA we have now, was the larger cab, the push button FWA and the hi-low was nice for turning on head-lands or going through water ways. That being said the power from the little fuel miser engine in the 6080 can not be beat. Physically the 6080 seems like a smaller tractor than the 2950 (from my memory) but it sure can pull like a freight train. A 5-speed power shift would sure have filled a gap. |
Posted By: AC7060IL
Date Posted: 31 Dec 2014 at 2:32pm
|
I love reading about Demo day stories - thanks for sharing. Impressively, AC took a 1964 301 to the 1980 433I (2 cylinder less version of the 301) and they Intercooled/turboed it to nearly the same level as an AC 190. So a Fwd 6080 could compete against a 190? |