Went to a new dyno and got some really WIERD numbers? - Mazda3 Forums : The #1 Mazda 3 Forum
 
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post #1 of 6 (permalink) Old 06-21-2011, 09:27 AM Thread Starter
Grand Am Series
 
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Location: Florida
Posts: 284
Went to a new dyno and got some really WIERD numbers?

He dynos civics and hondas. Thought i would stop by and show everyone Mazda is better then Honda in every way lol. They had 2 stock mazdaspeed3s also. Gen 2's and they only ran 210WHP...

My upgrades are:
-Mazdaspeed Coilovers
-BBS Wheels 7.5
-F5 Fujita Cold Air Intake System
-Cork Sport Racing Down Pipe
-MazdaSpeed Camber Kit
-MazdaSpeed Cat Back Exhaust System
-4 Sport Stop Brake Rotors
-Full Decal Kit
-Full Pace Car Flash Kit - 4 in front, 2 in back, 1 light bar in rear window
-2 Crowe Enterprises 5 point Harnesses
-Full Custom Roll Cage - Built in house at the ChampCar World Series Garage
-Custom Rear Seat Filler - Fabricated in the ChampCar World Series Garage
-Rally Armor mud flaps
-Front fog yellow vinyl
-Painted red calipers
-Rear windshield wiper delete
-Custom black emblems

He dynod my car.... I got 244.2 [email protected] And 256.6 [email protected]

... Is that right? I was shocked.
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post #2 of 6 (permalink) Old 06-21-2011, 09:36 AM
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Re: Went to a new dyno and got some really WIERD numbers?

[quote author=jono777 link=topic=192478.msg4054164#msg4054164 date=1308662872]
My upgrades are:
-Full Decal Kit
-Front fog yellow vinyl
-Painted red calipers
-Rear windshield wiper delete
-Custom black emblems
[/quote]
Definitely these mods gave like a 50+ power to the wheels!


In reality it depends on a lot of things; it's hard to get a clean dyno run.

Do you know what type of dyno it was? (aka mustang)

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post #3 of 6 (permalink) Old 06-21-2011, 09:42 AM Thread Starter
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Re: Went to a new dyno and got some really WIERD numbers?

It was a dynocom dyno or something he told me
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post #4 of 6 (permalink) Old 06-28-2011, 02:01 PM
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Re: Went to a new dyno and got some really WIERD numbers?

Your only real mods are I/DP/Catback, which sounds right depending in the dyno. Really would like to see a graph, that would help explain everything...


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post #5 of 6 (permalink) Old 06-28-2011, 06:30 PM Thread Starter
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Re: Went to a new dyno and got some really WIERD numbers?

Right.. now the thing is is that they were not running any air in my intercooler. so yeah
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post #6 of 6 (permalink) Old 06-28-2011, 07:57 PM
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Re: Went to a new dyno and got some really WIERD numbers?

A few things to remember:

1) HP/TQ readings from the manufacturer are at the crankshaft. Dynos measure it from either the wheels or the hubs, so you have to factor in the loss of power from drivetrain loss.

2) Dynamometer manufacturers have different formulas, layouts, etc, so their HP outputs vary. Some dynos are more generous than others. I think Dynojets are fairly generous, but Dynocoms are stingy. Don't be surprised if the HP/TQ ratings differ between different shops.

3) What kind of intercooler are you running? The stock TMIC is notorious for soaking up heat from the engine (even with a fan blowing over it), which causes wildly inconsistent readings. Some MS3 owners have noticed drops of 10hp or even 20hp on subsequent runs after the first. For example, Grassroots Motorsports Magazine's Mazdaspeed3 Project Car was so inconsistent on a dyno that they had to measure performance gains in 30-70mph times until they upgraded to a CP-E FMIC.

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