ECMlink ECMLink V3 Beta Report

[toofast82]

Oh, I'm sure, you can run any size sensor with the right scalar. What I mean is, with a bigger sensor, you lose resolution in your maps because you are still limited by 16 load rows. Example for a 3 bar: 3/16 = .1875 Bar/row. For a 5 bar: 5/16 = .3125 Bar/row. So it would make tuning less accurate, the only way around this would be to increase the number or load rows.

I didn't think of it like that. thanks for clearing it up, because it definitely would make tuning less accurate if not

 

[Burnett03]

If you look on the dsmlink forums they have been running it awhile without a hitch. Cant wait for SD, tired of the maf getting bad readings and stalling out. Even with the v3 idle clamp it still likes to stall out in hot weather.

Are you running the direct maf ecmlink cable? This solved alot of my issues over the crappy translator box.

 

[vinnybean]

Do not quote me, but I believe with ds-map you can run any MAP sensor that has a 0-5 volt reference. The higher the bar the more granularity you will lose in your tune. I ran a 3 bar last season and the car ran smoother and was more responsive then it was stock.

 

[JayRolla]

Are you running the direct maf ecmlink cable? This solved alot of my issues over the crappy translator box.

Actually I am, its not bad. Just bad enough I dont like the fiance to drive the car because she likes to rev up too 4000-5000rpms and then suddenly hit the clutch to stop instead of staying in gear and braking so she stalls it out.

I talked to Tom and he said its normal due to maf getting bad readings after throttle is dropped due to moving the maf near the TB and the intercooler piping configuration. Anyways with the idle air clamp enabled it works out pretty good, but Dave and Tom said SD will take care of it completely. Also get rid of the wondering tune.

 

[toofast82]

How much power are you guys that are already using V3 with GM maf expecting to gain by switching to speed density?

 

[JayRolla]

Im not expecting to make anymore power, the only difference would be that there is no maf at all so there will be a little less restriction. The good things are you dont have a maf and loose all the issues with it, and you get better driveability. Tune is usually dead on and wont wonder like the gm maf.

 

[toofast82]

Im not expecting to make anymore power, the only difference would be that there is no maf at all so there will be a little less restriction. The good things are you dont have a maf and loose all the issues with it, and you get better driveability. Tune is usually dead on and wont wonder like the gm maf.

I definitely won't be putting my MAf sensor back on anytime soon! The tune is pretty dead on
I wouldn't expect much more from a Gm Maf other that what you mentioned. It should be worth a noticeable increase from a 1g/2g maf car, though- especially 1g maf

 

[jpbrazill]

Actually I am, its not bad. Just bad enough I dont like the fiance to drive the car because she likes to rev up too 4000-5000rpms and then suddenly hit the clutch to stop instead of staying in gear and braking so she stalls it out.

I talked to Tom and he said its normal due to maf getting bad readings after throttle is dropped due to moving the maf near the TB and the intercooler piping configuration. Anyways with the idle air clamp enabled it works out pretty good, but Dave and Tom said SD will take care of it completely. Also get rid of the wondering tune.

Haha...my fiance is not allowed to drive mine either...

 

[Burnett03]

Haha...my fiance is not allowed to drive mine either...

Mine drives mine.. I'm also doing some beta testing for SD on ecmlink. It will be interesting because i drive to high elevations on the weekends sometimes, my IAT and map are in my SMIM and i run water injection. So we shall see how things go with that.

 

[dsmfa9nutter]

Technically, speed density is not available for either, yet. But, it will be available to the public for both 1G and 2G at some point.

Anyone can run speed density using ostrich and the code from ds-map.

 

[SpeedAddict62]

Anyone can run speed density using ostrich and the code from ds-map.

1g: Jackal
2g: Evo 8 Ecu with speed density patch

SD is officially taking over!

 

[twdorris]

1g: Jackal
2g: Evo 8 Ecu with speed density patch

Or, more consistent with what this thread was created to discuss:

1G: ECMLink
2G: ECMLink

We're even working on the early EVOs now too.

SD is definitely nice. But I will point out a few interesting bits. Intake air temperature has no affect at idle or cruise. I've tested from below 40F to over 180F! I saw no difference in fuel trims at idle despite having the IAT compensation removed at the time.

As the airflow rate increases, air temperature starts playing more of a role. By 20psi, logs definitely show an effect from air temp...BUT you have to be running at some extremes to really see this effect. In our testing at 140F and 20psi, I saw about 80% of the theoretical adjustment due to air temp. If you have a decent IC setup and aren't out flogging the car in summer heat, you're probably not going to see much difference! To generate my test conditions, I had to block the IC and sit on the stutterbox building boost for about a minute straight to get everything fully heat soaked so I could do some pulls.

Which pressure sensor you use plays more of a role in determining behavior than was expected. In particular, the GM sensors have some limitations to consider. For example, the 3.3-bar sensor does not read full vacuum! And the 3-bar sensor has some delay/averaging built in that seems more appropriate for driving a boost gauge (which I think may have been its original purpose) than running SD. But, with some adjustments to tip in, you can run perfectly fine on that sensor too. It also depends on just how picky you are about the car's behavior.

The AEM sensors *seem* to behave much nicer. But we haven't done a fair back to back comparison on them to confirm.

OK, so there's some more information. Let's see how crazy the responses get.

Thomas Dorris
ECMTuning, Inc.

 

[jpbrazill]

Anyone can run speed density using ostrich and the code from ds-map.

Actually, I was referring to ECMLink SD.

 

[bling5tatus]

So how long until the public release? How much more beta testing is needed and what are the current issues w/ the beta program?

 

[twdorris]

So how long until the public release? How much more beta testing is needed and what are the current issues w/ the beta program?

http://www.dsmtuners.com/forums/ven...mlink-new-features-comin-5.html#post151844425

Thomas Dorris
ECMTuning, Inc.

 

[dsmusmc]

Very interested to see how this does with a 5 bar MAP then i might switch from MAFT PRO to V3. Where is everyone putting there IAT sensor on the TB elbow for this and where everyone is placing there MAP? Will be running SD with meth and wondered if before or after would make a difference.

 

[Gamble97]

Just run a vacuum line from the intake manifold to the map.

 

[bling5tatus]

What's working? What's not working? Where are the bugs or is it already bug free?

 

[jpbrazill]

Very interested to see how this does with a 5 bar MAP then i might switch from MAFT PRO to V3. Where is everyone putting there IAT sensor on the TB elbow for this and where everyone is placing there MAP? Will be running SD with meth and wondered if before or after would make a difference.

IAT is located on the throttle body elbow (equivalent), and I run a vacuum line from the intake manifold to the MAP sensor.

Are you running straight methanol as a fuel, or an injected additive?

 

[Hal]

All of the S/D installs I have done as part of the beta (1g and 2g cars) have performed flawlessly.

 

[dsmusmc]

I havnt tapped anything yet thats why i asked. The IAT goes before the bend but wondered if i should place the injection before or after the IAT. I will be spraying 50/50. Everyone i know that runs SD loves it and this is for sure my next step.

 

[jpbrazill]

What's working? What's not working? Where are the bugs or is it already bug free?

We have not seen any problems at all. Bolt on, go.

 

[bling5tatus]

So has anyone done any dyno testing back to back to see if there's a power increase after the restriction is removed from the intake?


....or do the honeycombs in the maf increase laminar flow and thus flow of air entering the compressor... and there is no power increase?

 

[Gamble97]

So has anyone done any dyno testing back to back to see if there's a power increase after the restriction is removed from the intake?


....or do the honeycombs in the maf increase laminar flow and thus flow of air entering the compressor... and there is no power increase?

The honey combs straight out the airflow so the maf can read it. Without them the car will run for shit.

Evo guys have had no ill effects from removing their honeycombs though.

 

[Side_Show]

talontsiturbo20 can you please let us know how much PSI you are running with your SD setup. Some of us are wondering if you pushed it 30-40+psi with the SD and if it ran fine.