M54. Let the foolishness begin.

[hoveringuy]

Dyno time

Dynojet. Stock e30 exhaust. DISA switches at 3800 rpm.

I'm making close to max torque at 1800rpm?

Who can read the graph and tell me when VANOS switches off. ha ha.

[2002maniac]

Congratulations Hoveringuy!

[jahnaboi]

Dude... could you do my wiring!? LOL. I'm struggling enough just trying to convert my stupid s52 to obd1 considering I don't know where any connections go or how everything is suppoes to mount and what I'm missing because I never had a complete obd1 motor (s/m50) to compare it to what I'm doing as of the moment.

[hoveringuy]

Disa

I've been getting more and more details squared-away. I had the heater hoses backwards so I reversed them and now I have cabin heat. The manifold is actually small enough to allow clearance for that!

Anyway, I got my RPM activated switch from Summit today and installed it. As background, the DISA valve is a vacuum actuated, electrically activated valve that changes the intake from a low speed optimum setting where resonance packs more air in the cylinders to a high speed setting where it opens up and breaths. It switches at around 3800rpm.

I've tried it in both positions, but now that the switch is installed it pulls down low and screams up high.

DISA, it's the shizzle!

Off to the dyno...

[SpecM]

that is so cool

you are my hero

[MR 325]

Congrats man, that's badass.

[I got it, yes!!]

Congrats, Ill have to come take a look at it some day soon.

[WillisE30]

Steve, I thought you were crazy when I read the initial post, then I met you and we tried your signal converter on my car and I knew you were nuts. BRAVO!!!

[lifeiskaos]

lol nice

[hoveringuy]

Dumbass!

Yeah, that's me.

Took it for a good 25 mile drive this morning and everything is working GREAT, except the $#@* temp gauge.

I start trouble-shooting the wiring and get down to the ground path.

Hello! It's a plastic fitting! Not a good conductor!

I created a ground to the plug and now the temp guage works perfectly.

I think I'll leave the zip tie like that, it goes well with driving around with the hood off.

[bender]

dude that is so sick. you made some serious progress in a very short period of time, congrats!

we need some videos!

[hoveringuy]

Will you come do mine now? LOL I just had to ask. Tomorrow I have a 1991 325i with a hole where its heart should be and I really want to do a swap but no money right now. I do however have a 1991 5.0L HO motor sitting in my garage on an engine stand. mmmmm! I have enjoyed reading this post over the last several days. Put it on a chassis dyno when you are done.

My butt dyno says it's faster. The black stripes down the street do, too. I want to get a few hundred miles on it before I do the chassis dyno, but I have a local one arranged. I also want to screw with the DISA valve. I want to run a wire into the cabin and play with activating it at steady loads to see what happens.

[madformx5]

Will you come do mine now? LOL I just had to ask. Tomorrow I have a 1991 325i with a hole where its heart should be and I really want to do a swap but no money right now. I do however have a 1991 5.0L HO motor sitting in my garage on an engine stand. mmmmm! I have enjoyed reading this post over the last several days. Put it on a chassis dyno when you are done.

[hoveringuy]

Dinan!

Never mind some of the stuff I send in the previous post. I wired up the O2 sensor and replaced the stock M50 chip with a Dinan S50 chip (Thanks DougsIC!).

Wow!

I need to get the smell of burning rubber out of my car now. I'm beginning to like.

[itsbrokeagain]

congrats also on the start up. Beware of the DISA valve pin falling out and getting sucked down the intake. Those have a nasty habit of backing out into the intake...lousy design.