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Old 08-31-2008, 02:21 PM   #1
methaddict
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Join Date: Sep 2007
Chapter/Region: SCIC
Location: Socal
Vehicle:
2004 WRB STi
Full Race TS, BW 8374 EFR

Default How do I go about breaking in a new motor with hydra 2.5

I just switched from Utec. I'll be running BC 272 cams with a vf36 twinscroll setup. Would I have to get a special base map to have autotune get the a/f ratios sright to do a proper break in? Should I just have the car towed in and do a break in on a dyno?
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Old 09-01-2008, 01:26 PM   #2
Innovative Tuning
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and 06 STI daily

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If you want to do it right, have a pro there to put a base map on it and tweak it immediately upon startup. You don't want to waste a new engine.
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Old 09-02-2008, 12:00 PM   #3
Element Tuning
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Location: 673 WHP Element ProComp Engine
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Quote:
Originally Posted by methaddict View Post
I just switched from Utec. I'll be running BC 272 cams with a vf36 twinscroll setup. Would I have to get a special base map to have autotune get the a/f ratios sright to do a proper break in? Should I just have the car towed in and do a break in on a dyno?
Make sure you have the correct base map for your setup. If the map is not specific just make sure the map is for the correct fuel injectors and that your fuel pressure is set correctly. Calibrate your WB and enable the "closed loop" feature. As you start the car to warm it up make sure the AFRs are correct based on the "Target AFR Table" in the correct base map. As you drive monitor the AFR to ensure they are correct based on the table. You will see the Hydra adjusting fuel under "STT" so you can see how much off the fuel map is.

If things aren't ridiculously off then run the Autotune but if the fuel map is way off you may have to manually adjust the fuel map.

Thanks,
Phil
www.elementtuning.com
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Old 09-08-2008, 09:07 PM   #4
xerox445@yahoo.com
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Black

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Im in the exact same boat. I have a built motor, 9.6 to 1 compression, bc 272 cams, breaking it in on stock turbo and injectors. Started the motor on the stock ecu, and it idles at 14.7. Im about to switch over to my 2.5 hydra, and I have a feeling that theres not going to be a base map that i can drive the car around for 1k miles to break the motor in, and I dont believe autotune adjusts timing. any ideas?
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Old 09-09-2008, 11:51 AM   #5
Element Tuning
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Just take 3 degrees of timing out of your Hydra base map from 1 psi and higher and it will be fine for breaking in the motor under 10 psi. Follow the instructions above for the fueling.

The right thing to do if you are incapable of doing basic tuning is to pay someone to give you a "break-in" tune. No car at Element Tuning is ever given to a customer after a built motor is installed that isn't perfectly in tune for the break in parameters.

If you're not capable get some help.....it's really not that had to make your AFRs correct based on the instruction given.

Good luck.
Phil
www.elementtuning.com

Last edited by Element Tuning; 09-11-2008 at 10:59 AM.
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Old 09-09-2008, 09:56 PM   #6
xerox445@yahoo.com
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great, thanks phil, ill let you know how it goes!
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