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Old 08-03-2012, 03:20 PM   #1
Mach V Dan
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Default Mach V BRZ dyno'ed


All stock. (Actually, we also removed the muffler and put on a little straight pipe in its place. It made the same power. Then we removed the air filter entirely. It made the same power.)

--Dan
Mach V
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Old 08-03-2012, 06:12 PM   #2
sidewayz
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I love your dyno cell :/ jelly
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Old 08-04-2012, 01:05 AM   #3
RallySport Direct
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Nice! We noticed a slight loss when we took out our air filter, but I think that was due to the Monkeys who did the work(Kirill and Myself) taking way too long and letting the car cool off too much. Car looks great BTW!!

Thanks,
Rick
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Old 08-04-2012, 03:31 PM   #4
dwx
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I think the results are about what others have seen. I've read conflicting results about replacing the factory midpipe (ie full catback exhaust). Nameless originally replaced it in their axleback exhaust but it made no gains and the stainless replacement midpipe actually weighed more than the stock one, so they made it just an axleback.

Agency Power (grain of salt) saw pretty big gains with just a catback exhaust, like 10WHP, most of the other brands have seen 3-7WHP which is probably within a margin of error.

I'm planning sometime next week to do a couple runs locally with just a muffler delete as well.
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Old 08-18-2012, 04:58 AM   #5
Visconti
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Quote:
Originally Posted by RallySport Direct View Post
Nice! We noticed a slight loss when we took out our air filter, but I think that was due to the Monkeys who did the work(Kirill and Myself) taking way too long and letting the car cool off too much. Car looks great BTW!!

Thanks,
Rick
I saw a power loss when I took the filter out

-John
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Old 08-20-2012, 12:09 PM   #6
Calamity Jesus
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Not too surprising.. with the MAF right up against the airbox, the filter actually smoothes airflow into the MAF. Without the filter, eddies and channels can form and the MAF can read erroneously. A proper CAI with the MAF placed in the middle of a straight section of tubing might show some gains.
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