[edgarj]

Originally Posted by AltecBX

You're right!

That makes more sense. The only octane-independent evolution to this single I/O device would be a device capable of adaptively manipulating several parameters of the engine's function: a piggyback or ECU flash.

[j|rz44]

toybox tune

[e.n335]

The bad thing of high octane tunes is that you will get in trouble without high octane gas. Terry solved this problem with the "R" switch. I hope the SSTT will come up with a similar fallback solution.

Functions:

- SSTT is correcting boost only
- JB2 is correctiong boost and fuel
- AA Xede, PROcede and hopefully the Attaché are correcting boost, fuel and timing. Keeping an eye on the Attaché progress I see it is not trivial to develop a good piggyback solution for the 335i.

IMO just increasing the boost is not an adequate tuning solution for the 335i. I have been impressed about the JB2 and still retain with the PROcede V2, hoping that all current issues are solved until March / April 2008. If not, I have to change the engine performance tuning to come to an end and being able to continue with FMIC, DP's and so on. I don't want to mix up any issues, so the engine performance tuning has to work rock solid on an otherwise stock car first.

To the thread: Just another teaser with no content

- Eugen

[ChaneRZ]

should be plug and play!

[gonzo]

What is the "high octane only" mark?
93 I hope.

[5soko]

Originally Posted by e.n335

The bad thing of high octane tunes is that you will get in trouble without high octane gas. Terry solved this problem with the "R" switch. I hope the SSTT will come up with a similar fallback solution.

Functions:

- SSTT is correcting boost only
- JB2 is correctiong boost and fuel
- AA Xede, PROcede and hopefully the Attaché are correcting boost, fuel and timing. Keeping an eye on the Attaché progress I see it is not trivial to develop a good piggyback solution for the 335i.

IMO just increasing the boost is not an adequate tuning solution for the 335i. I have been impressed about the JB2 and still retain with the PROcede V2, hoping that all current issues are solved until March / April 2008. If not, I have to change the engine performance tuning to come to an end and being able to continue with FMIC, DP's and so on. I don't want to mix up any issues, so the engine performance tuning has to work rock solid on an otherwise stock car first.

To the thread: Just another teaser with no content

- Eugen

not sure that the SSTT only adjusts boost only, as i have been to a dyno with a adapted sstt and it ran richer than on stock boost levels. now im not sure what the ideal AFR is for 11.5 psi but running around richer than stock cant be all bad.

[RiXst3r]

I heard about a race version a long time ago... jeff said it was for users of race gas or water/meth injection...

They were already testing it as of 6 months ago, but he said they were running into a few issues, and hoped to have them worked out soon.

Not sure if this is the box you heard about... but its been in the works for a long time

[RiXst3r]

Originally Posted by 5sokol335icoupe

not sure that the SSTT only adjusts boost only, as i have been to a dyno with a adapted sstt and it ran richer than on stock boost levels. now im not sure what the ideal AFR is for 11.5 psi but running around richer than stock cant be all bad.

It doesnt directly control fuel, the ECU dumps in more fuel to compensate for higher AIT's and to maintain stocklike AFR's (other than a tad more fuel because of the AIT's)

Our cars run in closed loop fueling mode all the time, meaning that sensors in our exhaust sniff out the ACTUAL AFR, and then adjust accordingly... so it will always dump more fuel to try and hit stock targets automagickally.

[DIM335i]

At least i hope the new stage SSTT will have an on board switch so we can change between stock mode and performance mode. I wouldnt like to run my new car always on 13psi. So instead of pluggin and unplugin the SSTT it would be nice if there was a switch on board to turn on/off the SSTT.

[Dr_Dirt]

Originally Posted by e.n335

The bad thing of high octane tunes is that you will get in trouble without high octane gas. Terry solved this problem with the "R" switch. I hope the SSTT will come up with a similar fallback solution.

Functions:

- SSTT is correcting boost only
- JB2 is correctiong boost and fuel
- AA Xede, PROcede and hopefully the Attaché are correcting boost, fuel and timing. Keeping an eye on the Attaché progress I see it is not trivial to develop a good piggyback solution for the 335i.

IMO just increasing the boost is not an adequate tuning solution for the 335i. I have been impressed about the JB2 and still retain with the PROcede V2, hoping that all current issues are solved until March / April 2008. If not, I have to change the engine performance tuning to come to an end and being able to continue with FMIC, DP's and so on. I don't want to mix up any issues, so the engine performance tuning has to work rock solid on an otherwise stock car first.

To the thread: Just another teaser with no content

- Eugen

Eugen,
When you say that the SSTT doesn't "correct" for fuel I'm not exactly sure what you mean.
I think you meant to say that the SSTT lets the ECU automatically "correct" the fuel to compensate for more load/boost, according to what the load/fuel map dictates.
Is this what you meant to say?

[5soko]

i cant say for sure that the SSTT unit itself does not correct fuel, as to what eurobahn and split second have said.
http://www.e90post.com/forums/showpo...03&postcount=1

but i can def say that it does not stay at the same AFR for 8 psi that it does when the SSTT is installed and running 11psi. it def gets richer. the way its done, im not a tech and cant prove anything. i do trust eurobahn and split second in there engineering and there explanations though.

[Dr_Dirt]

Originally Posted by 5sokol335icoupe

i cant say for sure that the SSTT unit itself does not correct fuel, as to what eurobahn and split second have said.
http://www.e90post.com/forums/showpo...03&postcount=1

but i can def say that it does not stay at the same AFR for 8 psi that it does when the SSTT is installed and running 11psi. it def gets richer. the way its done, im not a tech and cant prove anything. i do trust eurobahn and split second in there engineering and there explanations though.

Sounds like fuel is being added via if not via the SSTT than definitely via the ECU load/fuel map.
Added boost won't make more power without added fuel.

edit:
The SSTT doesn't control boost or fuel, thats all completely controlled via the ECU. The SSTT is just altering the TMAP (throttle map). That's why it feels and acts like stock just with more power.

[T Bone]

I wonder if stage 2 will be a second sensor in addition to the current SSTT box. I.e. another sensor modifier....

Soon SSTT owner's engine bays will be like Borg droids with lots of plug-in parts

[M3EST]

Teaser with no content.Just give a few more infos.

[Calgary Agent]

Originally Posted by T Bone

Soon SSTT owner's engine bays will be like Borg droids with lots of plug-in parts

We are the Borg. You will be assimilated. Your biological and technological distinctiveness will be added to our own. Resistance is futile.

[T Bone]

Originally Posted by Calgary Agent

We are the Borg. You will be assimilated. Your biological and technological distinctiveness will be added to our own. Resistance is futile.

I wish I had the Borg neural net control my boost / fuel / timing.....hell, I will settle for Commander Data sitting in the back seat to do this work.

Clearly a Data mark 1 would kick the snot out of Procede V2

[SCCAForums.com]

I know in my talks with Jeff... we have mentioned coming out with a true 100 Octane race program... if you only have access to 91 or 93... what's out there is what's out there.

I for one... just won't go into the factory harness / ecu... so plug and play is it for me.

The Stage II SSTT (Which I'd just like to call the 'RACE VERSION) will also work WITH the current SSTT... but have boost levels intended for 100 Octane. (IE track days, dragstrip etc...)

I just got the SSTT for my car... and will install tomorrow... and re-dyno in the next week or so. Then... when the Race Version is out... I'll be doing that one as well!

HAPPY NEW YEAR EVERYONE!

[Terry335]

Originally Posted by SCCAForums.com

I for one... just won't go into the factory harness / ecu... so plug and play is it for me.

If you spend a lot of time on the road course I think significantly richening up the air/fuel ratios makes a lot of sense. It cools and stabilizes the combustion event, and allows the car to take more total timing advance. You make more power and are less susceptible to power fade under extended loads like you find in a road race. Unfortunately the only way to adjust the air/fuel ratios is by biasing the wideband o2 sensors, which are accessed under the car or in the ECU box.

If you bias the map signal only, for example like the JB1 does, you will get a slightly leaner air/fuel ratio below 4500rpm and a slightly richer air/fuel ratio above 4500rpm, but its effectively an insignificant change. Less than 2/10ths of a point leaner or richer. I've had good results with a full point richer and other popular tunes are a bit richer than that.

[5soko]

Originally Posted by Terry335

If you spend a lot of time on the road course I think significantly richening up the air/fuel ratios makes a lot of sense. It cools and stabilizes the combustion event, and allows the car to take more total timing advance. You make more power and are less susceptible to power fade under extended loads like you find in a road race. Unfortunately the only way to adjust the air/fuel ratios is by biasing the wideband o2 sensors, which are accessed under the car or in the ECU box.

If you bias the map signal only, for example like the JB1 does, you will get a slightly leaner air/fuel ratio below 4500rpm and a slightly richer air/fuel ratio above 4500rpm, but its effectively an insignificant change. Less than 2/10ths of a point leaner or richer. I've had good results with a full point richer and other popular tunes are a bit richer than that.

lets keep your product out of this thread.

[Nikolas]

Originally Posted by 5sokol335icoupe

lets keep your product out of this thread.

Why only Terry's? I mean Procede, AA and others were also mentioned?

[e90AW335i]

Originally Posted by 5sokol335icoupe

lets keep your product out of this thread.

Originally Posted by e.n335

- SSTT is correcting boost only
- JB2 is correctiong boost and fuel
- AA Xede, PROcede and hopefully the Attaché are correcting boost, fuel and timing. Keeping an eye on the Attaché progress I see it is not trivial to develop a good piggyback solution for the 335i.

Oh no, Eugen mentioned all of the products....

[RMRC]

Originally Posted by Nikolas

Why only Terry's? I mean Procede, AA and others were also mentioned?

+1. I appreciate Terry's input on this.