Just recieved a prototype UTEC.

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09-23-2005 | 11:24 AM

#21

Cronic

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Joined: Sep 2005

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From: az

Quote:

Originally Posted by eraz3r

The utec was good for basic stuff but on a wrx it had a transition that made tuning a pain, i dunno if thats still the case. My only other gripe was that it looks like DOS and tying a wideband to it is impossible/difficult unless you buy the turboxs wideband. lame imo. however, it is nice for those that need to retain their obd2 system and like the robust features of the factory ecu.

The transition is solely up to the tuner. You can tune out 99% of the transition by closely matching ecu/utec timing at crossover. It takes time to do, and lots of tuners tune only wot, and neglect low end, and crossover.

The new wrx firmware now has a feature which makes transitions even less noticable by delaying the crossover and interpolating the values.

As far as using hyper term, i dont mind it. It is simple and can be run on palm's and such.

Dave-
Kingpin Performance

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09-23-2005 | 12:47 PM

#22

Sharif@Forged

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Forged Performance

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From: Marietta, GA

Quote:

Originally Posted by Cronic

What concerns do you have with big injectors? And what do you consider high boost? What size injectors do you usually run?

Dave
Kingpin Performance

650cc Injectors and 15-20psi of boost...600-700whp. THere are situations where you need more than 50% fuel enrichement, which I was told was the limit of the UTEC's MAF correction capability. Now, since the larger injectors will be scales to -50%, then you really have 100% addition...if that makes sense. But at some point, you might run out of correction...that is the unknown...and we will soon find out.

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09-23-2005 | 01:06 PM

#23

Cronic

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From: az

Quote:

Originally Posted by Sharif@Forged

They probally dont have open loop fueling avail then, i am sure it will be soon. When you have that, you have the ability to scale the injectors.. We have run 850cc injectors at 35psi with no issues. Before we had OLF there was huge offsets in the fuel map however which is probally what you are refering to.

Dave

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