[Artz 330]

So the car ran on 5psi of boost with no problems, on the stock ECU without you having to play with the ECU? Or did you play with the ECU while running 5psi. Little more details please.

[abeaujuin]

I was talking about a Nissan 350z with a Greddy Turbo Kit.

[HPF Chris]

Originally Posted by Artz 330

So the car ran on 5psi of boost with no problems, on the stock ECU without you having to play with the ECU? Or did you play with the ECU while running 5psi. Little more details please.

Without any ECU mods, the ECU controlled the car fairly well if you didn't boost. At 3 psi, the car ran pretty normal, but the turbo wouldn't allow us to run that low of boost with the internal wastegate. At 5psi or more, the car would not richen the mixture up as we would like via the ECU. When we added a separate fuel system to richen it up, the ECU immediately noticed the mixture change and put it back where it wanted to be (too lean)

We will most likely have a solution to this problem some point here in the near future. Technik, who is doing the ECU flash for our M3 turbo kits will be helping us resolve these issues.

I just finished driving our Turbo'd M3 today. Today, we're shipping the car to Technik to be tuned. Here's a really quick video I took before the transport comes.

Broadband M3 Turbo Kit Video Clip

Dial-up M3 Turbo Kit Video Clip

Take care,
Chris.

[poldim]

Do you guys have any videos of how the car performs?

[Ryan@Motorwerks]

Originally Posted by abeaujuin

I know some people don't like to do this, but why don't you guys get some help from Greddy they make turbo kits for many cars. Look at the link below, it's for a Nissan 350Z

http://www.autocarparts.com/part/1187/1

Greddy uses e-Manage to control the larger injectors and other issues that may arise from installing a turbo kit.

I've actually been in one running 5psi and it feels great!

That would be like superspint asking eismann to make them an exhaust.........pretty pointless

[abeaujuin]

Asking should never hurt anyone. The worst that can be said is "No"


I boy will feel shame...

But a man, a real man can walk on...

And produce the best work ever...

[JO3]

Can't you intercept the O2 sensor signals and condition them so that the ECU thinks it's getting the right mixture while you richen it up?

[Ryan@Motorwerks]

Originally Posted by abeaujuin

Asking should never hurt anyone. The worst that can be said is "No"


I boy will feel shame...

But a man, a real man can walk on...

And produce the best work ever...

I meant to say asking would defeat the whole purpose of them making the kit. If Greddy makes the turbo kit for them, then they are nothing more than a distributer. I don't think it would make sense for Greddy to let Horsepowerfreaks capitalize on their work. Anyways horsepowerfreaks don't need any help, they're good enough to figure it out.

[poldim]

Originally Posted by JO3

Can't you intercept the O2 sensor signals and condition them so that the ECU thinks it's getting the right mixture while you richen it up?

This is a pretty common method. I've never heard of it being done with widebands, but I dont see it being any different. If you can figure out what the car needs to see to produce 12:1, then that should be all you need.....

[JO3]

Originally Posted by poldim

This is a pretty common method. I've never heard of it being done with widebands, but I dont see it being any different. If you can figure out what the car needs to see to produce 12:1, then that should be all you need.....

That's what I was thinking as well. In fact, if your fuel pump and injectors are up to the task, you could fool the ECM to give you the fuel you need.

Of course, I'm no professional tuner, and I'm probably oversimplifying the problem. Just curious to see what I'm missing.

[ZenDriver]

Hey HorsepowerFreak guy- how much is a new head gasket for an E90? Word on the street is that you should know.

KaaaaaaaaaBoom....

[Ryan@Motorwerks]

Chris,
I bet you could make a small fortune by selling us downpipes to replace our cats with. Would you be willing to make them? Also, Would it be easy to replace cats with a downpipe and vice versa?

[sunchild]

you guys are talking to horsepower freak like he doesn't know what he's doing.

[RichP]

I have some experience with this tuning arena for FI, and generally speaking, you just cant have a "black box" on the O2 sensor signal, or MAF input signal, apply some level of signal correction to the readings and fool the ECU into thinking everything is normal. The ECU generally either throw codes (because it can sense even the slightest deviation from what things should be) or will adapt itself around the correction.

I mentioned my doubts earlier on about this project, and although I was correct, having talked to Chris, I think they will eventually realize a solution. Their partnership with Technic will only help. Horsepower freaks know quite a bit about FI, the BMW ECU though, is a totally different animal than its Japanese and Domestic counterparts.

Hell, our ECU has to be advanced to control these motors!

[T7R_Sky]

Hey, I was just wondering, cause I dont really know much about re-flashing the ECU to make it work with the turbo... but i wanted to know if that means the speed limiter will be removed also. Like my car now is limited at 135. Will I be able to go full speed after the re-flash?

[poldim]

Originally Posted by T7R_Sky

Hey, I was just wondering, cause I dont really know much about re-flashing the ECU to make it work with the turbo... but i wanted to know if that means the speed limiter will be removed also. Like my car now is limited at 135. Will I be able to go full speed after the re-flash?

Why would you want to go faster than 135?



The 135 means you dont have sport and you have a 325. Without the suspension, its very dangerous, not that its that much safer with ZSP. With the 325, I dont think you will go faster than 145-150.

[Hunter399]

I dont think having the sport package will make the car any safer at those speeds...

[Romulus]

Originally Posted by poldim

Why would you want to go faster than 135?



The 135 means you dont have sport and you have a 325. Without the suspension, its very dangerous, not that its that much safer with ZSP. With the 325, I dont think you will go faster than 145-150.

top speed is a factor of tires, not suspension.. in this case.

[Artz 330]

any news yet on the ECU tunning and what the Est. date for the release of the Turbo kit is.

[jhbodle]

Originally Posted by poldim

Why would you want to go faster than 135?



The 135 means you dont have sport and you have a 325. Without the suspension, its very dangerous, not that its that much safer with ZSP. With the 325, I dont think you will go faster than 145-150.

My Euro 325i with standard suspension isn't electronically limited and will go 152mph according to BMW.

[T7R_Sky]

So... whats the news with the ECU? Horsepowerfreak, you got any good news for us? lol.

[Ryan@Motorwerks]

Yes, please tell us how things are going