Running a piggyback with the flash ECU

**drew0u812** · 12-24-2013, 07:29 AM

Originally Posted by NOMIEZVR4

IDK about you, but I like to keep cussing and *itching to a minimum when under the hood of my car...I despise cars that are a PITA to work on...hence why I have no ABS, no AWS, No EGR/Vac-Lines/Charcoal Canister/Clutch Booster, No Cruise, No washer bottle, front turbo IC piping running under and no battery

Still got full power steering and A/C though..

With the help of my tech, I've timed 1hr and 20 mins from driving the car onto the lift to having the motor on the ground..

...but I'm not tying to set records doing that kinda stuff...lol..

What do you do about emission testing?

**NOMIEZVR4** · 12-24-2013, 10:37 AM

In IL 98 and older cars are exempt from testing. Plus I have FlashECU...I can change the periphery settings.

**llabmik2** · 12-24-2013, 01:55 PM

Originally Posted by Greg E

The SD code for the EVO isn't perfect. There are random low throttle drivability stutters. It also take a very long time to dial in correctly.

AEM has wideband correctional feedback which always fine tunes the mixture on the fly all the time. Kinda like the closed loop feature of the stock ECU.

Not completely true. SD2.0 is much better then SD1.0, I ran SD2.0 on my Evo for years. Then I went to a Vipec. When I tune evo's on SD its not bad at all. As long as you have your MAF settings right you can get SD dialed in pretty quick (yes the MAF tables are still referenced). The low down stutter issues were big when it was first patched to SD, some (most) of them came from doing SD on a ROM that belonged to a ECU that didn't have a MAP sensor, so the code was added. Using 941 was much better then using 965. While not as smooth as my Vipec is, its still smooth. It does have a couple hickups every once in awhile, but for the most part nothing is wrong with SD on the stock evo ECU's.

**Greg E** · 12-24-2013, 02:01 PM

Originally Posted by llabmik2

Not completely true.

It does have a couple hickups every once in awhile.

I'm confused.

Didn't I say that same thing?

**llabmik2** · 12-24-2013, 02:19 PM

Pretty much, I was more targeting the long time to dial it in part, and for some reason got side tracked and said the same thing you did pretty much lol.

Doesn't take long at all. If you have never done any type of SD setup I could see it being a little hard/time consuming. Once you have a gasp on what is going on, you can tune it pretty fast even with having to turn the car off every time.

SD2.0 is still better then SD1.0. The 3D map that 2.0 gives you, gives you a ton more control over the 2D map of 1.0