Darius' dyno numbers
FINALLY, took my Mustang to the dyno monday to get it tuned. This past winter (ok, ALL summer) I installed a new Ed Curtis custom cam and TFS-TrackHeat intake.
Greg Banish at Livernois (DetroitSpeedworks) did the tuning. We did a few pulls, and slowly went after a safe fuel curve, and timing was limited to a safe tune also. After a few light pulls, we went for a full pull. The good news is that the motor makes TONS of power!!! On the Mustang Dyno (load dyno) it was pushing 479rwhp @6100rpm and _still_ climbing, when we shut it off. [The Mustang Dyno simulates load, like wind speed and vehicle weight in a quarter mile. While the Dynojet, does not apply a simulated load, and thus is about 10% higher numbers]. On a Dynojet that would equate to 525rwhp!!!! YIKES! The reason we shut it down, was that it ran out of fuel. The 42# injectors, with intank 255 and T-rex 255 inline fuel pumps, and SN95 bigger fuel rails couldnt keep up with demand. We tried adding more injector pulse width, but they were already 100% duty. It went from a steady 11.4:1 A/F ratio, when at 5500rpm it started going leaner _quickly_ to nearly 13.0+:1 A/F ratio @ 6100 rpm (where we shut it down). The torque already plateaued, but the hp was still climbing. Right now, I am looking to put a LARGER (yeah, slow down and underdrive) the blower with a 7# pulley (like a 3.6" ?) which is down from 8# pulley (3.33") that came stock with the S-trim. Hopefully knock off some 30rwhp, and get it to crack right at 500rwhp. [Remember, this is a stock shortblock with 36K miles]. Also plan on adding more initial fuel pressure to simulate larger injectors (not have to buy new 50# injectors). Between these two changes, that should allow me to run it to 6000rpm (self imposed redline), and free up some fuel necessity on top end. First time in my life, I ever wanted to "get rid" of the already toooo much horsepower. :D Here is the dyno sheet: http://www.dariusrudis.com/junk/Mustang_Dyno_Sheet.jpg Here is the 8M video: http://www.dariusrudis.com/videos/Mustang_Dyno_clip.wmv |
Beefy, Nice numbers there cheif:cool:
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Time for a beefed up bottom end and some 55 lbers Darius!! :D
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Hopefully this engine will last me thru all of 2005, and THEN I'll think about something like a 331 with a different (Sportsman?) block... |
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Bigger isn't always better! :p My little 'ol 308 is making better than 565hp at the crank....N/A! Stay small and just spin it to the moon!
Nice numbers Darius. That torque must be a real killer on the street. :) |
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Really, my argument for going with a 351W based mill though wouldn't have nearly as much to do with horsepower as it would regarding durability. Talking production blocks, of course. If you've got $2K to throw at an SVO block than it's not the same issue. However, when you build a higher horsepower based engine on a production type block the 302 just doesn't offer the durability and strength of the 351. When I was running my 302, squeezing it for all the power I could get (515 RWHP) the block went see ya later right on the dyno eventually. I've been running my supercharged 377 with a lot more power still than the 302 ever had and it hasn't flinch and inch. No more blown head gaskets and the block holds up. I wish I would have done the swap and built a 351 mill years prior. What headaches it would have saved me! |
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I agree with you though Dan on the production block aspect of it. I'd love to slap a roughly 400cid smallblock in mine and just a touch of boost:) Darius, great numbers! If you change your mind and decide to sell those 42lb'ers, shoot me a PM. -Drew |
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