Put The 89 On The Dyno

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Put The 89 On The Dyno

Postby RSWORDS » Mon Jul 27, 2009 7:35 pm

89 Cummins
6x16's
Silver 62
Pump Mods
3200 Spring
Goerend Convertor and Built 727 Tranny
Walbro 392 lift pump
82 Jet For The Nitrous

297.48HP 532.23 Uncorrected Fuel Only
336.92HP 602.70 Corrected Fuel Only

376.63HP 675.99TQ Uncorrected w/ Nitrous
426.94HP 766.30TQ Corrected w/ Nitrous

Everyone said it looked like it made more. Even Mike the guy running the dyno was surprised of how low the numbers were.

1st Run Is Fuel Only
2nd and 3rd Were With The Nitrous

http://www.youtube.com/watch?v=M6XPr6Oy ... annel_page
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Postby Begle1 » Mon Jul 27, 2009 8:57 pm

The fact that it was 10 PSI off from what you see on the street is significant, ya know.
1990 D-250 Regular Cab: Tweaked injection pump, built transmission, a cataclysmic charlie foxtrot of electronics, the most intense street-ran water injection system in the country, and some more unique stuff.
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Postby RSWORDS » Mon Jul 27, 2009 9:04 pm

I know. I honestly cant say how much it was off on teh nitrous run. It runs around 58psi on fuel on teh streetm was 47-50 on the dyno, it was hard to see teh gauge from teh passenger seat. The nitrous pegs teh gauge and on teh dyno it look real close to if not pegged.
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