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Old 01-08-2006, 07:49 PM   #1
wrxxed
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Question pros and cons of dyno tune vs road tune?

????????????????????????Thanks.
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Old 01-08-2006, 08:58 PM   #2
mcowger
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Dyno tune: repeatable results, with easily quantifiable numbers. No need to break the law by exceeding the speed limit

Road tune: Can see driveability issues better.
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Old 01-08-2006, 09:03 PM   #3
AaronWRX
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if your dyno tuner doesnt take the car out on the road to fine tune and test things you went to the wrong tuner.
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Old 01-08-2006, 09:44 PM   #4
Jim Lewis
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I agree - my tuner guy made several important changes that he could only see while I drove the car. Part throttle and full throttle runs don't tell the story for tuning the car for everyday drivability.

We really didn't have to break the law, I just made some full throttle pulls on the highway, backed out, stabbed it again, did some low speed parking lot stuff - about 20 miles total. He was able to tune out a throttle tip in glitch that has been there since I bought the car.

And like Aaron said, if your tuner doesn't road tune, get a new tuner. I paid $250 for tuning - if it hadn't been road tuned, there would have been several annoying traits left unrepaired, and I would have been pissed.
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Old 01-09-2006, 10:42 AM   #5
wrxxed
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Jim where did you get tuned for $250? Thanks for the feedback.
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Old 01-09-2006, 09:46 PM   #6
Jim Lewis
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XX Tuning, Hartford CT - Tony is a tuning wizard and a damned nice guy.
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Old 01-09-2006, 09:57 PM   #7
wrxxed
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thanks I'll check them out!
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Old 01-10-2006, 09:03 AM   #8
ride5000
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dyno: immediately see how changes in tune affect torque output.
road: where you actually drive your car once the "tuning" is done.
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Old 01-10-2006, 09:20 AM   #9
T-boner
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Dyno tuning will get you real close, but yeah you need to finish up with some good road tuning. Dyno tuning is also harder on your drivetrain. After a solid week of dyno tuning in an R&D shop (not what your tuner will need to do), that car is pretty much thrashed!

IMHO, it's hard though to do a comprehensive road tune without breaking the law. A fifth gear pull to anywhere near redline will take you way past any speed limit I've seen around these parts. I guess if you had a nice steep incline you could load her up in fourth gear enuf. Best to have access to a track! Much safer, no cross traffic to worry about, no laws broken.
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Old 01-10-2006, 09:34 AM   #10
ride5000
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Quote:
Originally Posted by T-boner
IMHO, it's hard though to do a comprehensive road tune without breaking the law. A fifth gear pull to anywhere near redline will take you way past any speed limit I've seen around these parts. I guess if you had a nice steep incline you could load her up in fourth gear enuf. Best to have access to a track! Much safer, no cross traffic to worry about, no laws broken.
heard of left foot braking?

i can make a 1st gear pull look like 4th.

beds your pads in at the same time too.
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Old 01-10-2006, 09:40 AM   #11
Sperm
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Quote:
Originally Posted by Jim Lewis
XX Tuning, Hartford CT - Tony is a tuning wizard and a damned nice guy.
What EM are you using?

Thanks!
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Old 01-10-2006, 10:44 AM   #12
trickniner
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Quote:
Originally Posted by JSpych
What EM are you using?
I'd like to know too. I was planning on going to them in the spring to get an ECUTek tune. So you liked the guys there?
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Old 01-10-2006, 11:17 AM   #13
Jim Lewis
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I'm using Ecutek - works great, and after the road tune, actually took out some OEM sloppiness in throttle takeup.
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Old 01-10-2006, 01:31 PM   #14
Edvig
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I was going to ask this exact question today.

I just went to Cobb Stage 2 and want to have a pro tune map created for my car. I'm not interested in getting max power out of my car. I'd like a specific tune for my car to ensure the reliability of my engine.

Do I need a dyno tune or would a road tune be sufficient for my needs.

Thanks
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Old 01-10-2006, 02:36 PM   #15
Sperm
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I've got an AP STG2 right now, but I'm thinking about selling it and going the ECUtek route. Maybe I should give XX a PM.
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Old 01-10-2006, 03:27 PM   #16
MIKENICE456
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xx does protune for your ap stg 2. im going there to get that done ive only heard grat reviews on tony
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Old 01-10-2006, 04:34 PM   #17
GotTurbo
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i say go to ics performance and talk to jr. he know's his subaru's. even did a great job custom tuning my legacy.

-matt
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Old 01-10-2006, 07:23 PM   #18
bboy
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My $0.02.

Road tuning is a real world situation and if you tune to the limit of detonation, I think you are unlikely to extract more power. That said, the dyno gives you instant feedback on how your changes effect power.

The dyno I've been on has a lot of trouble simulating real world load. It almost never loads the engine enough so you end up fine tuning on the road no matter what.

There's always the bragging power of dyno numbers and I'm convince this is a big reason people use dynos.
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Old 01-25-2006, 05:07 PM   #19
Junior2JZ
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I will always do both.. the Dyno to smooth out big WOT tuning and the road to make sure everything else is runnig good.. Including WOT.
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