Honda Prelude Forum - Prelude Online.com - View Single Post - I have a dyno that shows that OBD II does hurt mods......
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Old 03-27-2001, 04:49 AM   #16 (permalink)
Ludakris_SH
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Join Date: Aug 2000
Location: West Melbourne, FL, USA
Posts: 91
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Ok, first off the numbers are low because I had the 18" chrome rims on. I have Racing sport akimoto intake, DC CC header, Random technology cat, greddy PE exhaust, and Jun Ultra light flywheel. I have been driving for 5-6K miles before this run so the ECU has had time to do it's thing. The first time I went to the dyno it was with the intake and some custom crap Dynomax muffler. This new dyno shows that I have gained 17 foot lbs of torque at 3500 rpms and I had the factory wheels on my first dyno. This must say a lot for the flywheel since the other mods are for top end at the loss of low end. 20 gained at 4k and 7 at 4.5K. Now for the rest. Of the 50 dyno runs I watched. Most people lost 2-3 Hp on the second run I gained 1 (this is at peak). This shows an increase of 3-4 HP. Not much but how much did the mods help in the first place? Also @ no point does the second run fall below the first. Now to point out the part of the V-AFC. It is not tuned and the factory VTEC is not at 5200. If you believe that then you must only have the factory tach. This was a free dyno run and I just took my third one as a chance to lean it a little to see what would happen. I even put everything right back to 4800 and zero. They didn't have a Air/Fuel meter. I will get to the dyno soon, but not until I get my cam gears on. As for 4600 being to low. The dyno does not lie. I did gain power, so know it was not to soon.
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