Pulling Forum - 7000 series Puller

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7000 series Puller

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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=94532
Printed Date: 24 Nov 2024 at 5:52pm
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Topic: 7000 series Puller

Posted By: Clay2017
Subject: 7000 series Puller
Date Posted: 31 Aug 2014 at 7:51pm

I was wondering which of the 7000 series is best for a farm stock puller. My grandpa has one he pulled way back when but I forget what model it is. I really wanna get it at my house and put some goodies on it and see what I can do around here. Any ideas would be greatly appreciated

Replies:

Posted By: O.P.S. Heads
Date Posted: 31 Aug 2014 at 9:43pm

Well if it's your grandpa's tractor you are going to use then that would be the best model to chose from right? Hopefully it is the power director transmission and not a power shift.

The driveline should hold up fine. The hydraulic clutch will too up to a point. Depending on how much power you need will depend on whether the clutch will hold. The harder the engine needs to run, the more money it will take. Your competition and the rules will dictate how much power you need to compete.

Run some turbo, injection pump, and cubic inch rules by us. That will help this forum give you some better info.

Posted By: Clay2017
Date Posted: 31 Aug 2014 at 10:03pm

I don't really know what class I want to pull in. I'm in ohio so I'll be going by ostpa rules correct? I have to stay away from getting into the engine but injectors and turbos I'm not scared of. Any suggestions on what class?

Posted By: O.P.S. Heads
Date Posted: 31 Aug 2014 at 10:42pm

In the state of Ohio there are (I'm guessing) 30 plus different tractor pulling associations. The OSTPA is the same competition you see at the NTPA levels with the "slowest" class being the superfarm class. You don't want to do that. I just read the OSTPA rules really quick.

I think you better look around close to home and figure out which association has a farm stock class as that seems to be what you are after. Ideally, if you want to remain at stock cubic inches you want something around 9000 - 9500 lbs. with the ability to run an inline pump and some sort of turbo inlet limit less than 3 inches.

I think you will find (especially in Ohio) that the "farm stock" classes are anything but.

Good luck.

Posted By: studer automotive
Date Posted: 01 Sep 2014 at 11:48am

Ops you got that right! It's difficult to find a class to pull our 185 in to be competitive. I found a few pulls that have some rules aimed towards out of field stock tractors so I can get in 8-9 pulls a year that I can be competitive in. This is ohio......

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a-c 185-d y/r cab turbo soon
99 f-250 7.3 4x4
86 mustang5.0 owned since 8/93

Posted By: NEVER green
Date Posted: 03 Sep 2014 at 11:48am

7040 through 7060 would be my choice. Don't use 7080,has thick heavy planetary gears and 4 inch axles. I pull a 8000 series, same power train as 7000 and up to 450 hp the PD held up fine. When I pushed 500+ in 4th high coming out of the hole it slipped and then violently shook and bounced, no fun. You will also have to bolt torque limiter solid. I've found one solution, purchased a PD from a puller who removed the low range piston and now only pulls in high range using 12 clutch plates. He pulled one season at 1000 HP no issues. I still havent dissected it yet to see exactly how it works.

At 1000 + HP road gear isnt fast enough so he moved on to different tractor. Like to add he didnt try doctors idea of using power shift high low range gears.

One engine suggestion is get a D21-210 ex manifold and port until slightly larger then heads ex ports, then weld or machine a divider plate separating the ex halves right before the turbo. The plate is worth 100 HP on 1000 HP engine, dyno proven.

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2-8050 1-7080 6080 D-19 modelE & A 7040 R50

Posted By: O.P.S. Heads
Date Posted: 03 Sep 2014 at 3:03pm

Interesting about the exhaust manifold. IH has had a divided manifold for years. I suppose it controls the pulses better and turns the turbo harder. Dr. adapted an 400 series IH manifold to a 426 years ago. It worked very well.

Posted By: NEVER green
Date Posted: 03 Sep 2014 at 4:46pm

Cummins too?

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2-8050 1-7080 6080 D-19 modelE & A 7040 R50