Ecu +

i just saw teh "ECU + Tuning and Data Logging Pachage" on the Mach V site. it claims to have the ability to act as a dyno and dragstrip. since it is not an accelerometer, it would make sense that it would be more accurate at HP numbers and timeslips.

my question is this: do you think that it will accuratly give horsepower readings based on rpm and mph readings? they say "to use as a dyno, just find a strait clear road and go for a second gear pull"...it also has the ability to apply a load.

here's the site, check it out:
http://www.ecuplus.com/

95 GSXracer...anything?

anyone?

looks ligit... but you still need to enter your vehicle weight and what gear your using to do the pull... but i looks very interesting, i will do some more research on it and update later today unless someone else does first, like Kevin.... also if you do read this Kevin, would this work for the RM that come from the 6 bolt swap? i could care less if my CEL stays on, its been on for over a year now... and i just dont care anymore! i just dont want the RM...

bump

The first point I have to make is do not confuse this with DSMlink, for anyone that sees it. Its still like an emanage, a glorified AFC. It still intercepts signals to the ECU and lies to it to achieve the desired outcome. I dont see any support for logging knock and all the usuall things you use to tune. Seems like they want you to jsut go by hp. The only way they can be measureing HP is mathematically through speed or rpm rate of rise. Which is fine. But I wouldnt expect it to be as accurate as an accelerometer.

I dunno, depends on what you are doing. If you were in the market for an AFC but want a laptop or palm type interface, go for it. And you get timing control as well. Which is a good thing, because lying to the ECU about airflow really hoses your timing ;) It doesnt require an EPROM of course, so if you dont have one that could be a selling point.

I dont see how it can help in the RM CEL issue in 6 bolt swaps. That is code that has to be changed inside the ECU, or else you are left just lying to the ECU again about barometric pressure...

Its all this lying to the ECU that got me into DSMlink. When I was on smaller turbos the lies were easy to manage. But when you put on a big ass turbo, the risk is just to high IMO.

It doesnt come anywhere near the functionality of DSMlink. But not everyone wants or needs DSMlink. Its another emanage type option. :)

I was just wondering if it would read horsepower accuratly. But you said that "I wouldnt expect it to be as accurate as an accelerometer". an accelerometer as in the G-tec? Because i head that the g-tec craps out when it comes to accuracy.

I just found out there's a AWD dyno opening just 20 minutes away from me, so thats cool, but a system that would eliminate the chassy dyno alltogether would be nice.

personally i like the G-Tech pro... the numbers i have recieved from it are very close in range from my dyno numbers and 1/4 mile times, they arent right on but come very close, so far my 1/4 mile time was .2 off which i know has to do with traction on the street, so i'd say that its pretty close! i'll know for sure when i start making runs with slicks! :iceslolan

People have taken the gtech to the track and compared it directly to the tracks timing system. It tends to be within or very near their claims for accuracy range. The gtech is actually more accurate for the trap speed than the track is, so those numbers may differ. The track takes an average of your speed over the last 60 feet, where the gtech looks at speed right at the end of the 1/4 mile. So gtech will read a little higher, and people that dont know any better say it reads too high and it cant be trusted :) Its really not that bad. HP figures are even tougher, because it requires you know the actual weight of the car iwth driver at the time of the measurement. Unless you have a very accurate scale at hand, the HP numbers will be off. They also are affected by areodynamic and other resistances not found on a stationary dyno. Its damn good for making back to back runs to evaluate a mod or tuning change, if you can repeat the circumstances of the test though.

Even dyno numbers will vary from machine to machine, so those arent super accurate. AFR numbers will vary from one wideband to the next. Different tracks are at different elevations, so numbers there will vary. Etc. No system for measuring our cars performance is perfect.

Thank you very much for that.