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Old 04-08-2009, 09:15 PM   #1
Jhovany
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Default Maha dyno vs Dynojet results!

I just want to share my results with everyone here. Alright guys before I start, I just want to say...take this for what it is and that this is NOT a direct comparison between the two dynos, by ANY means! WAY TOO MANY different variables!!!! For starters, these runs were done at COMPLETELY different days, COMPLETELY different locations, different altitudes, different temps, etc....heck I dont even think they were done on the same gear!!! Anyways here is the DL.....I always got a lot of crap from a lot of members on here for the dyno results I ended up with for my setup (everyone was saying that they were too low). I never understood where people were getting all of these "higher" NUMBERS! I always heard that dynojets read the highest out of any other dyno. So for *****s and giggles I drove 2 and a half hours to get dynoed on the only AWD dyno in the State of New Mexico, which just happens to be a dynojet!


















Several additional notes.........these dyno charts are for 91oct. at 19psi. The Maha dyno(which is the only one in North America, I believe) is that of GoodSpeeds located in Tempe, AZ roughly 1200ft elevation. At the time that I was dynoed (July 25, 2008), GoodSpeed had not yet received certain software in order for it to read WHEEL torque. The dynojet run was made this past weekend (April 4, 2009) roughly 5300ft elevation. I believe this run was done on 3rd gear. In the end....dyno numbers are just numbers. But very good tuning tools. Mods were exactly 100% the same on both runs. And finally a mod list that influenced these results......

APS SR56 turbo
APS 70mm CAI
APS turbo inlet
APS DR525 FMIC
APS 50/50 BPV
Perrin EL Header
Invidia DP
HKS Hi-Power exhaust
Accessport v2
Cosworth Shortblock
PE 850cc
Walbro 255
TGV deletes
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Old 04-08-2009, 10:43 PM   #2
godforbid67
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waiting till 5k for 375 wheel ftl!
are you sure your car is running right??
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Old 04-08-2009, 11:18 PM   #3
Jhovany
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are you sure your car is running right??

very sure
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Old 04-09-2009, 01:20 AM   #4
Deuce Cam
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Cool comparison. I still don't get why power curves are always shifted to the right on maha dyno plots when compared to a normal dyno plot, like a dynojet.
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Old 04-09-2009, 02:04 AM   #5
sorrowfulkiller
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... I don't like how the maha dyno chart is smooth

otherwise, cool comparison
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Old 04-09-2009, 02:35 AM   #6
k04sti
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Quote:
Originally Posted by godforbid67 View Post
waiting till 5k for 375 wheel ftl!
are you sure your car is running right??
Quote:
Originally Posted by Jhovany View Post
very sure
Might need to see logs. I don't really like dynos. That doesn't look right though.
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Old 04-09-2009, 04:03 AM   #7
sindy9001
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It's a cool comparison!
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Old 04-09-2009, 08:50 AM   #8
SuperSTI
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Peak power is at 6000rpm on the maha and 5000rpm on the dyno jet?

Are you sure that tune is right? Lag is the same as a GT35R 1.06.
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Old 04-09-2009, 09:01 AM   #9
Phatron
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different gears, different dynos, different loadings......

you guys need to remember its a 56 lb/min turbo......so its gonna be laggier than greens, 3076's, etc......and most likely be laggier than most rotated gt35's.

a 62 lb/min turbo with a 4" inlet is flowing more in the intake than a 56 lb/min turbo through the 3" APS twisty system
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Old 04-09-2009, 11:34 AM   #10
Clark Turner
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Thats about right.

One thing to be clear though. The Maha is reading accurate Crank hp. Its the machine many car manufacturers use. Most stock cars of various makes and models are within 3 to 5 hp of the rating of the car to the mahas Crank hp reading.

Reality hits home pretty hard sometimes.

Clark
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Old 04-09-2009, 05:27 PM   #11
Deuce Cam
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^^Have you run a stock sti on the maha, any graphs? I'm curious if it would show peak hp @ 6000rpm and peak tq @ 4000rpm like Subaru claims, or if the plots would be shifted to the right a little.
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Old 04-09-2009, 05:55 PM   #12
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Quote:
Originally Posted by Clark Turner View Post
Thats about right.

One thing to be clear though. The Maha is reading accurate Crank hp. Its the machine many car manufacturers use. Most stock cars of various makes and models are within 3 to 5 hp of the rating of the car to the mahas Crank hp reading.

Reality hits home pretty hard sometimes.

Clark
I was actually watching a video on the ABT tuning (of Audi fame), and noticed that they also were using the MAHA dyno for testing and calibration purposes..
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Old 04-09-2009, 06:06 PM   #13
Clark Turner
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Stock plots show HP and TRq peaks at about the same as the manufacturers claim. They use this machine to get the numbers.

Clark
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Old 04-09-2009, 06:29 PM   #14
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not stock but heres my stg 2 04 sti turbo back exhaust and ecutek tune were the only performance mods. mustang vs maha


mustang graph is hard to read sorry. max hp was 266 tq was279

Last edited by orion421; 04-09-2009 at 06:31 PM. Reason: graph unreadable
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Old 04-10-2009, 10:01 AM   #15
kellygnsd
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Quote:
Originally Posted by Clark Turner View Post
Stock plots show HP and TRq peaks at about the same as the manufacturers claim. They use this machine to get the numbers.

Clark
No SAE numbers are done on an engine dyno not a chassis dyno
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Old 04-10-2009, 10:44 AM   #16
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Quote:
Originally Posted by Clark Turner View Post
Thats about right.

One thing to be clear though. The Maha is reading accurate Crank hp. Its the machine many car manufacturers use. Most stock cars of various makes and models are within 3 to 5 hp of the rating of the car to the mahas Crank hp reading.

Reality hits home pretty hard sometimes.

Clark
+1. Arguably one of the best dynomometers on the market. BTW, you tuned a good friend of mine's car a few weeks back. He can't stop talking about how smooth it feels.
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