Thread: Ever wonder what a stock DE can do with Engine Management?

Yah, I figured as much... Also they're not going to tune for 93 octane I bet. Got to keep it happy at 91 or even lower.

You bring up a good point. I'm using a MAP sensor but the stock MAF sensor (restriction) is still in place. Removing that alone should show decent gains. It's all going to hell when I throw the turbo on though. =D

so are you planning on keeping it as stock as posible with only the adition of the VEMS for now?...

he has a complete GTIR turbo for awhile now.

I didn't plan on keeping it stock this whole time, it just happened that way. I'm glad because it gave me a really good idea of the power of a stand-alone. Also it gave me the ability to create a tune for the SR20 in VEMS that anyone could use (N/A or turbo) as a terrific starting point.

Actually the block was supposed to have been tapped last weekend for turbo oil return (as well as new clutch/PP/flywheel install). I've run into a minor snag finding a part that I'll post a thread about later. I know a lot of people (Keo included) who have been waiting so long for this turbo to go in. No one however has waited longer than me I assure you. =]
Really the plans for this started 5 years ago when I bought the car. I have friends who've heard me say I'm going turbo for 5 years now... Every summer that went by was going to be The Summer of the turbo install. Keep an eye out for updates to my project thread.

i will ben!!! great proyect, thanx for the vems install & tuning data they'll some day be put to good use by someone else too!!! and good luck with the proyect.... anything i can do to help let me know!!!

@BenFenner You made 150 WHP and 129 WTQ on a Mustang Dyno which is known to read 11-15% less then Dynoject's. Thus your car made between 166-172whp and 143-148wqt? Or did the dyno owner adjust the numbers so it would show them similar to the Dynojet numbers?

The dyno operator does things as best you can from what I can tell*. Which means he sets and calibrates the dyno to manufacturer's recommendations and applies the SAE weather correction based on that day's weather data. The vehicle weight is entered correctly for proper dyno roller loading. This information is based on working closely with the dyno operator. Dan Martin actually worked at the shop for a period of time. We know how the shop runs quite well. This operating proceedure results in a power and torque reading that is as accurate as the Mustang Dyno creators can give. There is no additional adjustments made (to match other dyno numbers or otherwise). A moderate-to-high amount of smoothing is applied ("5" as seen on my sheets). The dyno shop is rumored to read "low" in our area (what I like to think of as accurate) and sends many an import owner home crying. I trust the numbers.

The only thing that would have made things more accurate in my opinion would be if I'd run in 4th gear instead of 3rd. At the time for some stupid reason I thought 3rd gear was the 1:1 ratio. I've run in 4th ever since.

With that being said, I don't try to correlate them to flywheel numbers or to unloaded dynojet/loaded dynojet/loaded dyno dynamics numbers or any other chassis dyno. The numbers are 150 WHP and 129 WTQ. No more. No less.



*He does get slack on calibrating his O2 sensor. Which goes along with my standing statement that I've never met a dyno tailpipe sniffer that read correctly.

Reason I'm curious is, if those are mustang dyno real time numbers (not up converted to match DynoJet numbers), then you technically made closer to 170whp on DynoJet, which is damn impressive for a stock motor. Most people tend to throw out DynoJet numbers, thus it's good to know for a reference. Before it was believed that 200whp was not achievable easily, with your setup, adding a header and an intake would get you very closer to that line.

Somewhat related. Friend of mines dyno graph.

10:1 stock De motor with 270k miles on it.
IHE, 264 regrind cams, intake spacers, walbro.

This dyno chart shows the results before and after full engine management. Ignore the dyno numbers since they are from an uncomparible dyno, and also 6000ft altitude on 87 octane.

My stock motor made 150whp without tune at the moment,just goes to show how good of a engine it is,mine has 150k miles on it also.