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Ken in Texas 
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Joined: 11 Sep 2009
Location: Henderson, TX
Points: 5919
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 Topic: bolt in horsepower for a CA
Posted: 16 Aug 2019 at 6:10am |
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what other allis engines will fit in place of the stock CA?
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AaronSEIA
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Joined: 11 Sep 2009
Location: Mt Pleasant, IA
Points: 2551
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Posted: 16 Aug 2019 at 7:31am |
I think the D14/15 engines do. AaronSEIA
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Charlie175
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Joined: 11 Sep 2009
Location: Shenandoah, VA
Points: 6358
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Posted: 16 Aug 2019 at 8:31am |
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the D15 160 block would be the biggest that would fit as normal.
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Charlie
'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD
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PaulB
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 4747
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Posted: 17 Aug 2019 at 5:57pm |
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The Built up CA engine that I have will outdo a 160/D15 series II engine. I've run both side by side and I know. The CE type engine/head has a lot more room for improvement than the 160. The Allis engineers have the 160 doing just about all it can at stock RPM. The first thing to do to a CE is to fit a D14/15 manifold to the head.
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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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Ken in Texas
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Joined: 11 Sep 2009
Location: Henderson, TX
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Posted: 18 Aug 2019 at 10:08am |
Paul With a 3.5 mph speed limit what actually stops my pull is spinning out with my stock engine CA . How would more horsepower in 3500 or 4000 pound class make any difference. A bigger footprint makes more sense than horsepower. Let us talk a bit about getting what power I have to the ground.
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DrAllis
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Joined: 12 Sep 2009
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Posted: 18 Aug 2019 at 11:30am |
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With a speed limit, your best pulling performance comes from being able to achieve the 3.5 MPH at half throttle or so and keep increasing the engine speed. When I run a 3.5 MPH class my top speed at full throttle would be 5.5 MPH. When I run 4.0 MPH my top speed is 6.3 MPH. That takes HP/torque and a driver that is able to drive it like that. Bigger tires is a good idea too, but watch the real tough competitors and they are usually ALWAYS able to keep throttling up near the end of the run.
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PaulB
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
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Posted: 18 Aug 2019 at 4:04pm |
 Ken in Texas wrote:
Paul With a 3.5 mph speed limit what actually stops my pull is spinning out with my stock engine CA . How would more horsepower in 3500 or 4000 pound class make any difference. A bigger footprint makes more sense than horsepower. Let us talk a bit about getting what power I have to the ground. |
Ken: Your the one asking about more power to bolt into a CA. For a more efficent use of the power you have , refer to your post about tires. I’ve gone over this many times before with you. As long as you keep doing the same as you have been, expect the same results.
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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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dgerth
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Joined: 27 Nov 2012
Location: NC Wash
Points: 172
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Posted: 19 Aug 2019 at 5:47am |
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Ken,
We are currently running 14.9 x 28 TC on Mom's CA. Tried 16.9x28's FC but they had a tendancy to "float" on certain tracks where the 14's will keep on pulling.
She never uses 1st gear, only 2nd and 3rd and doesn't run out of power. Out here, we have several "hot" small tractors and the comp. is tough! Put what you have in the ground, maybe top cuts or full cuts, perhaps air pressure. Did I mention tires?? Good luck on your quest!!
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