ECUtune Stage III development - Page 11

Earthworm · #**151** 10-28-2004, 05:48 PM

Quote:

Originally posted by Matthewmongan
any way to change the power distribtion of the svx from 90-10 to the euro spec 35-65

I'm also curious as to how you can get 65% power to the rear wheels since there's always direct power going to the front tires.

SVXer95 · #**152** 10-28-2004, 05:49 PM

Quote:

Originally posted by Matthewmongan
one quick tranny question. i dont want to derail the topic of this thread but it their any way to change the power distribtion of the svx from 90-10 to the euro spec 35-65

Get a new transmission. The torque split is different because they have a planetary gearset rather than a viscous coupling.

svxfiles · #**153** 10-28-2004, 06:50 PM

Quote:

Originally posted by NikFu S.
I'd be down for that.
90-10 is stupid anyways.

Di and I drove around the other night with the select moniter hooked up to watch the F/R power split. Most of the time it was around 77%, at wide open throttle it was 50/50, in park it said 95%. For years the Subaru Reps said 90/10, but at idle, in park it says 95%.

mbtoloczko · #**154** 10-28-2004, 07:31 PM

Quote:

Originally posted by svxfiles

Di and I drove around the other night with the select moniter hooked up to watch the F/R power split. Most of the time it was around 77%, at wide open throttle it was 50/50, ....

Very cool info.

Matthewmongan · #**155** 10-28-2004, 07:32 PM

i think my awd is broken

oab_au · #**156** 10-28-2004, 07:50 PM

Quote:

Originally posted by svxfiles

Di and I drove around the other night with the select moniter hooked up to watch the F/R power split. Most of the time it was around 77%, at wide open throttle it was 50/50, in park it said 95%. For years the Subaru Reps said 90/10, but at idle, in park it says 95%.

I think that the moniter measures the duty cycle that is sent to the C sol. so the 95% would be full voltage to the solenoid fully opening it , on your model this is fully disengaged. I got a VTD box which works the oppersit way, 95% on it, is fully engaged.

Harvey.

NikFu S. · #**157** 10-28-2004, 11:57 PM

Quote:

Originally posted by Matthewmongan
i think my awd is broken

Mine too.

#**158** 10-29-2004, 01:51 AM

The STi trannies are 50/50 base, no?

Anyhoo, back on topic...

How's the chip set up for Stage III? I don't think I've seen anything about that. Will it have the NOS code, the 87 octane code, or something completely new in the second slot?

Pure_Insanity8 · #**159** 10-29-2004, 02:26 AM

Quote:

Originally posted by ThetaReactor
The STi trannies are 50/50 base, no?

Anyhoo, back on topic...

How's the chip set up for Stage III? I don't think I've seen anything about that. Will it have the NOS code, the 87 octane code, or something completely new in the second slot?

The fuel and timing tables will have to be different for stage III. The power from the supercharger will not be as linear as that of the nitrous. Also, I'm guessing that it will not be set up to run on 87 octane... especially since premium was the desired fuel in stock trim, we'll most definately need premium to help stave off knock with the additional pressure and heat created by forced induction... as well as the timing being retarded.

#**160** 10-29-2004, 03:12 AM

Yes, I'm quite aware that it'll take a completely new config to handle the boost. I'm just wondering what kinds of alternate option it might offer.

Pure_Insanity8 · #**161** 10-29-2004, 04:43 AM

What do you mean?

#**162** 10-29-2004, 05:56 AM

I mean that stage I has Performance + 87 octane mode, stage II has Performance + nitrous mode, stage III has boost + ????...

alex_umn · #**163** 10-29-2004, 07:50 AM

Maybe there could be a clutch on the supercharger drive pulley that would be tied to the trigger for 87 octane code? So, flip a switch, and then you can run cheap gas and have the supercharger turned off. That would be sweet!

Wonder what else could be put on such a switch...maybe electric control of Koni strut inserts?

Pure_Insanity8 · #**164** 10-29-2004, 08:14 AM

Yeah, that'd be pretty crazy!

I'm going to bet that it'll only be one set of tables since allowing the supercharging to be turned off won't be in the picture (at least not currently), and nitrous with the blower would be pushin; it for now. Also, a lower octane set wouldn't make much sense since it would kinda be like shooting for less power due to not allowing the timing to be as advanced as possible for maximum power. I'm just making a guess... but I'm pretty sure that is what it will initially be.

SVXRide · #**165** 11-04-2004, 08:39 PM

Okay, what's the latest on the Stage 3 front? I'm in definite need of a digital pics fix of a supercharger on a modified SVX intake manifold!

-Bill