spartan 310 dyno results... LOW numbers - Ford Powerstroke Diesel Forum
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Old 03-23-2010, 09:44 AM
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spartan 310 dyno results... LOW numbers

took my truck to straightline performance. spartan 310 tune S&B intake and straight piped..25K miles

put down 490 whp and like 980 trq
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Old 03-23-2010, 09:56 AM
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ya, that seems really low man. you should be in the mid to high 500's. Who ran the dyno? Also what kind of dyno was it?
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Old 03-23-2010, 09:56 AM
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Yeah thats real low. I would expect mid 500's from what I have read.
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Old 03-23-2010, 10:03 AM
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mustang dyno.. first reading was 420 hp and 700 trq.. it kept down shifting into 2nd when on the dyno.. they did a 1/4 run it said 11.7 at 109
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Old 03-23-2010, 10:04 AM
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the dyno also put a load on the truck aswell i guess for sumilating it weighing 7000 pounds
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Old 03-23-2010, 10:05 AM
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straightline perfoormance iin new lenox ill
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Old 03-23-2010, 10:10 AM
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normally when they put a load on the dyno your supposed to have higher torque numbers to my knowledge.

I have stage 1's in my truck and put down 696 ft/lbs of torque wich is pretty high for just stage 1's. It was on a mustang dyno at scheids. But my HP was way off.

Last edited by xxxxxxxSTROKE_THIS_F-250; 03-23-2010 at 10:17 AM.
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Old 03-23-2010, 11:47 AM
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First of all your truck is more like 8-8500 lbs, second did you reload the tune before you went to dyno?

and correct me if i'm wrong but don't you want the converter locked when your dynoing? why would it be downshifting to 2nd?
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Old 03-23-2010, 07:06 PM
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hey cj perfromace, where is that dyno located exactly? Im from lockport area.
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Old 03-23-2010, 07:26 PM
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I'm guessing user error somewhere. Those are 250 tune numbers.
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