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Tractor Pulling Discussion Forum

Estimated HP

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ih1256

04-04-2007 14:53:55




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So i just got the pump rebuilt on my 1256 and the guy who did it put a bigger spring in and did some other things to get every bit out of the pump. I dont have a pto in it, so i cant dino it, but before i was runnin about 180 HP. Does any know what I might be getting out of the pump and with rebuilt injectors to? Im just trying to see what I have and if any one has done anything similar to this?

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856puller

04-04-2007 15:18:33




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 Re: Estimated HP in reply to ih1256, 04-04-2007 14:53:55  
do you know how many cc's of fuel its pumping?



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ih1256

04-04-2007 15:29:21




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 Re: Estimated HP in reply to 856puller, 04-04-2007 15:18:33  
No im not sure but i do know it was 30% over the factory set at Full Throttle.... and the guy said he has every bit out of the pump that i am gonna get.



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G/MAN

04-05-2007 07:41:14




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 Re: Estimated HP in reply to ih1256, 04-04-2007 15:29:21  
If he does a lot of pump work for pullers, he should have other customers running similar setups and maybe one of those guys knows what he's getting.



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856 puller

04-05-2007 13:04:53




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 Re: Estimated HP in reply to G/MAN, 04-05-2007 07:41:14  
how did you figure 180 hp? 30% wont get you that far. we never ran the stock pump we got a 450 and started there



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ih1256

04-05-2007 15:57:18




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 Re: Estimated HP in reply to 856 puller, 04-05-2007 13:04:53  
That number was dinoed before the PTO was takin out and we got that just by turning up the pump and now we arent sure what its runnin after we got it back from Superior Turbo, but I was wondering if any one has done anything like this cause i can really tell a difference in the HP and i was just wondering if its like 230 or 250 or somewhere in there?



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856 puller

04-05-2007 18:08:01




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 Re: Estimated HP in reply to ih1256, 04-05-2007 15:57:18  
we started with a stock 450 head and had apx.250hp.it had a 3lm turbo.its been a few years but i think it was about 270cc bigger tips went to 325 more pump workwent to ?



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