200whp with stock N/A rotating assy?

[guibo09]

Is it really bolt on however? I assume you need engine management change to make these work, especially without an air box.

[ForcedFirebird]

19lb injectors and an SSSquid tune

To add, the tune would be useless.

Is it really bolt on however? I assume you need engine management change to make these work, especially without an air box.

We are tuning the stock Motronic. Currently working on another m20 with ITB's. We have the car running, and are just getting into the tuning stages on this one (pic from last week, it's all buttoned up now)...



We will soon have 3 different setups. I also have ITB's on my m50 powered e36 beater, also running stock Motronic...

[guibo09]

Ok need more explanation here... What type of load sensing are you using? Map, alpha-n?

Are you reflashing the motronic? Or using a piggyback chip?

[ForcedFirebird]

Ok need more explanation here... What type of load sensing are you using? Map, alpha-n?

Are you reflashing the motronic? Or using a piggyback chip?

Alpha-N, no load compensation. I use an emulator to tune on the fly and a chip burner to burn the final tune.

[guibo09]

Alpha-N, no load compensation. I use an emulator to tune on the fly and a chip burner to burn the final tune.

Wow awesome! Did not know it was possible to make stock DME run alpha-N with just a chip burn.

How is the alpha-n driveability? Is it near stock quality? Where are the sacrifices?

[squidmaster]

To add, the tune would be useless.

Ouch, and why exactly would it be useless?

[ForcedFirebird]

Ouch, and why exactly would it be useless?

Because I'm using a 0-5v TPS in place of the AFM. In fact your tune by default was on my emulator from the dyno session earlier in the thread. Car starts and runs, but not good at all. Any touch of the throttle and the AFR's immediately jump to mid 20's. We played with th eTPS angle to match the voltage outputs of the AFM, but the ECU is expecting a LOT less air to be entering the system so early. It's going to take hours of tweaking to get it to run properly. Will post a video of it's current running condition on Extrudabody setup, but the car this thread is about will have similar traits.

[squidmaster]

Let me know what I can do to help!

[ForcedFirebird]

Can't embed since it was just uploaded, but here's a demonstration of what's happening now with th eECU in stock configuration.

https://www.youtube.com/watch?v=nvVsU1U5cA0&feature=youtu.be

Let me know what I can do to help!

Sure thing. A usual, will email you the files and winPEP when it goes to the dyno. Two heads are always better then one :)

[LJ851]

Can't embed since it was just uploaded, but here's a demonstration of what's happening now with th eECU in stock configuration.

https://www.youtube.com/watch?v=nvVsU1U5cA0&feature=youtu.be

Here you go.

[ForcedFirebird]

Here you go.

Thanks. It was just a white square and non-click able link when I tried that a few mins ago. **shrugs**

[ForcedFirebird]

This is going to take a while. The 413 variants have an AE table that helped a lot with the throttles "gulping" air when a lot of throttle was applied.

[LJ851]

Can you explain generally how you are running motronic AlphaN ?

Are using the 0-5v tps in place of the afm and tuning around it or is it more complicated?

[ForcedFirebird]

Can you explain generally how you are running motronic AlphaN ?

Because I'm using a 0-5v TPS in place of the AFM.

m50 TPS wired in place of the AFM, angled to read the same voltage at 0 throttle as the AFM did at idle. Using Tunerpro's tracing, I verified the ECU is seeing basically what it would if the AFM were there. I think it's because the AFM door would open more gradual than the 5v signal is moving with the M50 TPS directly on the throttle shaft.

[jeffnhiscars]

Which brings us back to SSSquids question. What's the cost of what's in the pic ?

It's a track only car, they will be run open. The car only does 20min sessions.



Will let you know what they do with a 272, ported head, 272 cam and headers/exhaust.

They were tested previously on a bone stock m20 which made a baseline of 150whp, adding the ITB's made 174. 24whp increase on a tired m20 is significant, 16% increase from a bolt on...

http://www.e30tech.com/forum/showthread.php?t=118357