Ask your ECU, tuning questions here.

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wetroads
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Ask your ECU, tuning questions here.

Postby wetroads » Wed Aug 10, 2005 1:37 pm

We tune EVERYTHING except Ecutek and Unichip.

The SMT6 is the entry point for intercepters, followed by the Xede, Utec and the others.

Full replacement ECUs we prefer the Hydra which is the new kid on the block and is chock full of features at a good price point.

Any questions or queries you may have on ECUs and tuning please ask them here.
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Cheers,
Steve.

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pmh
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Re: Ask your ECU, tuning questions here.

Postby pmh » Wed Aug 10, 2005 2:19 pm

here's a motec question for you

what's the purpose of the overrun function with the motec?

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Re: Ask your ECU, tuning questions here.

Postby wetroads » Wed Aug 10, 2005 2:34 pm

pmh wrote:here's a motec question for you

what's the purpose of the overrun function with the motec?


Are you referring to overrun boost enhancement or overrun fuel cut?
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Steve.

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pmh
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Re: Ask your ECU, tuning questions here.

Postby pmh » Wed Aug 10, 2005 2:48 pm

avoturbo wrote:
pmh wrote:here's a motec question for you

what's the purpose of the overrun function with the motec?


Are you referring to overrun boost enhancement or overrun fuel cut?


sorry, both

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Re: Ask your ECU, tuning questions here.

Postby wetroads » Wed Aug 10, 2005 2:52 pm

pmh wrote:
avoturbo wrote:
pmh wrote:here's a motec question for you

what's the purpose of the overrun function with the motec?


Are you referring to overrun boost enhancement or overrun fuel cut?


sorry, both


Overrun boost enhancement is a fancy way of saying anti-lag.

Overrun fuel cut is for when you back off the throttle, to stop the car running rich momentarily until the ECU sorts out where it's at in the map.
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Steve.

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pmh
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Postby pmh » Thu Aug 11, 2005 1:15 am

overboost run enhancement is something you can get without the extra for the motec? i.e enable anti lag
or is that actually anti lag, where it is an enabled (extra option) function?

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Postby wetroads » Thu Aug 11, 2005 8:27 am

pmh wrote:overboost run enhancement is something you can get without the extra for the motec? i.e enable anti lag
or is that actually anti lag, where it is an enabled (extra option) function?


Best you check with a Motec dealer, we aren't one.

But from my experience with Motec, everything is extra.
-------------


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Steve.

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STI02
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A tuning questions

Postby STI02 » Fri Aug 26, 2005 2:13 pm

Hi Steve
I have a couple of tuning questions for you:

The car is an 02 STI with
1. APS CAI
2. APS T/B 3" Exhaust
3. APS BOV
4. SMT6
5. Blitz DSBC Spec S
the rest is standard

1. If you have a look at my dyno graphs, can the uneven power graph around the 6400-6500 rpm be cleaned up?
2. Is the boost curve safe at higher RPM ?
3. Are the fuel ratios ok? especially between 3500 - 4500 RPM?
4. I am also getting compressor surge in 4th & 5th gear, what can be done without any power compromise?
Thanks for all your advise
Fady

http://www.homepcdoctor.com.au/wrx/STI/ ... 0graph.jpg
http://www.homepcdoctor.com.au/wrx/STI/powerAFR.jpg
http://www.homepcdoctor.com.au/wrx/STI/ ... 0graph.jpg
<< Come Fly With STI >>

"If we are to achieve results never before accomplished, we must expect to employ methods never before attempted" Francis Bacon

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wetroads
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Re: A tuning questions

Postby wetroads » Fri Aug 26, 2005 2:36 pm

STI02 wrote:Hi Steve
I have a couple of tuning questions for you:

The car is an 02 STI with
1. APS CAI
2. APS T/B 3" Exhaust
3. APS BOV
4. SMT6
5. Blitz DSBC Spec S
the rest is standard


Hi Fady...

Well looking at your mods and your dyno charts my initial reaction is 'Why don't you ask APS and Protek?' but seeing as I'm such a nice guy I'll have a crack at some answers.

1. If you have a look at my dyno graphs, can the uneven power graph around the 6400-6500 rpm be cleaned up?


Probably not with the VF35, it will be no doubt suffering from excessive back pressure up high and those turbos are out of puff quite early, so no, not really.

2. Is the boost curve safe at higher RPM ?


Depends on ignition timing which we obviously can't see so I don't know. You do have a Knocklink fitted, right?

3. Are the fuel ratios ok? especially between 3500 - 4500 RPM?


Not too bad, goes a bit richer than we'd tune it for which may also be contributing to the back pressure mentioned in 1.)

4. I am also getting compressor surge in 4th & 5th gear, what can be done without any power compromise?


You can try and tune it out a bit but the VF34/35 are prone to this when flow is improved substantially. But to really fix it you will most likely need to restrict the air going in which will reduce performance.

Cheers...
-------------


Cheers,
Steve.

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Re: A tuning questions

Postby STI02 » Fri Aug 26, 2005 3:08 pm

avoturbo wrote:
STI02 wrote:Hi Steve
I have a couple of tuning questions for you:

The car is an 02 STI with
1. APS CAI
2. APS T/B 3" Exhaust
3. APS BOV
4. SMT6
5. Blitz DSBC Spec S
the rest is standard


Hi Fady...

Well looking at your mods and your dyno charts my initial reaction is 'Why don't you ask APS and Protek?' but seeing as I'm such a nice guy I'll have a crack at some answers.

Thanks for the prompt reply Steve, you know I ask for your opinion because you are a nice guy :) and very knowledgeable and you don't talk c#@p. I am after a second opinion with all due respect to Dominic at Protek, whom has been very helpfull & very honest.


1. If you have a look at my dyno graphs, can the uneven power graph around the 6400-6500 rpm be cleaned up?


Probably not with the VF35, it will be no doubt suffering from excessive back pressure up high and those turbos are out of puff quite early, so no, not really.

Do u think a differnet muffler might help?
2. Is the boost curve safe at higher RPM ?


Depends on ignition timing which we obviously can't see so I don't know. You do have a Knocklink fitted, right?

The timing is unadjusted by the SMT6 so we left it to the original ECU.

3. Are the fuel ratios ok? especially between 3500 - 4500 RPM?


Not too bad, goes a bit richer than we'd tune it for which may also be contributing to the back pressure mentioned in 1.)

What do you consider a safe AFR for this engine with this setup ? The reason I ask is because I specifically ask Dom for a safe tune

4. I am also getting compressor surge in 4th & 5th gear, what can be done without any power compromise?


You can try and tune it out a bit but the VF34/35 are prone to this when flow is improved substantially. But to really fix it you will most likely need to restrict the air going in which will reduce performance.

Cheers...


Thanks again mate
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"If we are to achieve results never before accomplished, we must expect to employ methods never before attempted" Francis Bacon

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wetroads
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Re: A tuning questions

Postby wetroads » Fri Aug 26, 2005 3:25 pm

STI02 wrote:
Thanks for the prompt reply Steve, you know I ask for your opinion because you are a nice guy :) and very knowledgeable and you don't talk c#@p. I am after a second opinion with all due respect to Dominic at Protek, whom has been very helpfull & very honest.


No probs....

Do u think a differnet muffler might help?


It's possible, if the muffler is restrictive it will be contributing to back pressure.



The timing is unadjusted by the SMT6 so we left it to the original ECU.


:shock: Would NOT recommend this.

What do you consider a safe AFR for this engine with this setup ? The reason I ask is because I specifically ask Dom for a safe tune


Depend's on what the car is being used for. We'd prefer to see it a bit leaner and obviously (now that we know) with some timing taken out.

But that's just how we would have tuned it.
-------------


Cheers,
Steve.

Gonzo
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Postby Gonzo » Tue Aug 30, 2005 11:03 pm

Steve,

Considering SMT6 as piggy back ECU. I only have light mods, turbo back with dump pipe and water spray.

If I go the SMT6, do I need any other electronics to enhance SMT6, such as boost control and will it control water spray?

I have an MY05.
Cheers,

Steve

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Gonzo
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Postby Gonzo » Tue Aug 30, 2005 11:18 pm

Can't seem to edit...is the SMT7 being stocked or coming soon?
Cheers,



Steve



MY05 Black Hatch

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wetroads
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Postby wetroads » Wed Aug 31, 2005 11:35 am

Gonzo wrote:Steve,

Considering SMT6 as piggy back ECU. I only have light mods, turbo back with dump pipe and water spray.

If I go the SMT6, do I need any other electronics to enhance SMT6, such as boost control and will it control water spray?

I have an MY05.


The SMT6 can control waterspray, boost controller is always a 'nice to have' at any level of modification.
-------------


Cheers,
Steve.

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wetroads
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Postby wetroads » Wed Aug 31, 2005 11:41 am

Gonzo wrote:Can't seem to edit...is the SMT7 being stocked or coming soon?


It looks like it 'may' be available for the WRX/STi soon but I don't believe it is a good option for those cars, bythe time you fit it and option it up with the extras you might as well spend a bit extra and buy a Hydra.

Although I guess we should be able to to the SMT7 for less than the Utec and about the same as an Xede so there probably is a market there for it.
-------------


Cheers,
Steve.

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Postby Gonzo » Thu Sep 01, 2005 8:57 am

What boost controller, in your experiance, works well with the SMT6?
Cheers,



Steve



MY05 Black Hatch

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Postby wetroads » Thu Sep 01, 2005 10:18 am

Gonzo wrote:What boost controller, in your experiance, works well with the SMT6?


Any of them, SMT6 and boost controller are two totally seperate entities. AVC-R's are pretty good and the new EBOOST2 looks to be a good one also.

We prefer a closed loop boost controller than one just running duty cycle and gain.
-------------


Cheers,
Steve.

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rexdriver
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Postby rexdriver » Thu Sep 01, 2005 1:28 pm

wouldn't he be better off going Hydra than trying to get both the avc-r and smt6? pricewise what would be the diff?
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wetroads
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Postby wetroads » Thu Sep 01, 2005 1:48 pm

rexdriver wrote:wouldn't he be better off going Hydra than trying to get both the avc-r and smt6? pricewise what would be the diff?


Depends on future mods and whether he wants switchable boost from the cabin.

The Hydra boost control function will be fine with a stock turbo, as is Motec, Autronic etc...

But, once you go to a big Ball Bearing turbo Hydra, Motec, Autronic, Link, etc, none of them really do a good enough job of controlling boost, you end up having to make compromises, the Hydra guys are going to make some changes that should sort that out.

Price difference including tuning would be somewhere around $7-800 including tuning etc....
-------------


Cheers,
Steve.

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Postby rexdriver » Thu Sep 01, 2005 2:07 pm

avoturbo wrote:Depends on future mods and whether he wants switchable boost from the cabin.


You can switch map thus boost with Hydra in cabin?
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