Dyno plot of s50 swap

[aeryk7]

Should be able to put the pickup over all three wires to get the signal , you dont have to single one out.

Also the listing estimates 240rwhp , you might want to check your compression or get a small mirror and look on the back of the head there should be a vin number make sure it starts with wbs . Maybe this guy got ripped off when he bought his motor. All i know is a car like that with mods like that will usually have a chip especially when the project is going on first thing you think about is what are you gonna do for software.

[TWRViper]

We tryed placing the pickup around all three of the wires and it did not give a signal. The three wires should only have 12v going to them so they aren't the high voltage necessary for the speed sensor. I will try using a voltage meter in frequency mode to check tonight.

[Stu]

There is a possibility that the VANOS unit is locked out in the retarded position, which would make it not advance at 4000 rpm.
My brother mentioned this can happen when the VANOS unit takes a dump--it can get locked out in one of the two positions (advance/retard)

[TWRViper]

There is a possibility that the VANOS unit is locked out in the retarded position, which would make it not advance at 4000 rpm.
My brother mentioned this can happen when the VANOS unit takes a dump--it can get locked out in one of the two positions (advance/retard)

A trained eye should be able to determine from the dyno chart if the VANOS is working.

What other way could I check it?

[Jason89i]

There is a possibility that the VANOS unit is locked out in the retarded position, which would make it not advance at 4000 rpm.
My brother mentioned this can happen when the VANOS unit takes a dump--it can get locked out in one of the two positions (advance/retard)

very true. however, vanos kicks in around 2500 rpm. this dyno does not go that low, so it would be hard to tell.

.....Do you have the speed signal wired? That can affect your rev limiter if it is not set up properly. Can you see on the dyno when the VANOS kicks in?

agreed, check the road speed signal. scan the ecu to see if your getting an error code for the road speed signal. my first swap was like this for a couple weeks. the ecu will not engage the vanos without a road speed signal.

cheers, jason

[TWRViper]

Ok DME is in my hand. There are a lot of numbers on it. The case was def opened before.

The case has the following on it:
Bosch 0 261 200 413
1 744 698

WBSBF 9325seh06696
0FFFFFFFFFD
1403787
1744698
1404732

any ideas?

I gave the last number, 1404732, to the BMW dealership and they said it is a 1995 m3 ecu.

The chip itself had a blank sticker on it so no number. The circuit board has on it 0413. I guess someone could have swapped covers and put a m3 chip in a 325i circuit board. Anyone know if there is a difference between the cuircuit boards of a m3 and a 325i (besides the chip)?

[aeryk7]

So your either stock m3 or better for software.

[aeryk7]

Was the sticker on the top a shiny silver or like regual paper?

[bmw332i]

I think I'm going to toss in my 2 cents here. I know the guys that did the work on this car. They wouldn't mis-represent something like this, as it would be their reputation that would be put on the line. It is an s50 motor, as proven by the VIN number (unless there's more shenanigans I don't know about). The engine is an 08/1995 production, with what is probably a stock 413 silver label ECU.

As far as the claims of the power at 240rear wheel hp, I think the seller, not the shop, has made the mistake of rear wheel vs crank hp. Are you sure it's got Supersprint headers? How well is the exhaust system done? An "aftermarket exhaust system", unless well done, will not yield any real power. Believe me, I know all about the kind of exhaust that will make power on an s5X. And the crazy custom one I had done only got me around 10hp, and @15ft/lbs of trq. And it set me back $$$$'s. They dynoed before and after on their dyna-packs (take that for what it's worth).

There is no mention anywhere in the auction of other mods, so I suspect the fact that the dyno plot showing under 200rear wheel hp on a Mustang dyno is not alarming in the least. To get 240rwhp, you'd need some heavy duty work done to that engine. We're talking Euro MAF, 24lb injectors, underdrive pullies, 264/256 Schricks, etc... to get near 245rwhp. You want anymore, and now you're looking at serious internal work and even more serious $$$$$$$.

I think if you're looking for more oomph, the first thing I'd do, is get a JimC chip. Just to make sure that you have the right software. Turner sells them for right around $300-$350 depending on mods done, or mods that you will do in the future. You can even get a credit if you ever do an upgrade that requires a new chip (I think it's like $100 toward a new one if you send your old one back in). The new chip should give you 7100rpms to play with.

I wouldn't freak out just yet that you got scammed for an e30m50 just yet. There's lot's more that can be tested to make sure that the engine really is what you (and the seller) think it is before going apeshit. Maybe bucking up for a new/real chip and getting a new O2 sensor will solve your problem.

I guess that's where I would start, and then I'd re-dyno it, and see if that made a difference. If so, then we're moving in the right direction. Good luck, and keep us posted.

[TWRViper]

Was the sticker on the top a shiny silver or like regual paper?

The sticker on the chip was blank paper. I tore it off too see if anything was underneath. Nothing.

The sticker on the case was silver.

I talked to Mike today who did the swap. He said that he normally puts in a TMS chip in.

I checked the tach vs the hall effect sensor. The freq off the hall effect sensor seems to be 150-200 rpm higher than the tach. So the tach seems to be reading a little low, so I might actually be reving to 7000 before fuel cut at 7000. Can anyone confirm the the RPM of stock revlimiter for e36 m3 1995?

[aeryk7]

The sticker on the chip was blank paper. I tore it off too see if anything was underneath. Nothing.

The sticker on the case was silver.

I talked to Mike today who did the swap. He said that he normally puts in a TMS chip in.

I checked the tach vs the hall effect sensor. The freq off the hall effect sensor seems to be 150-200 rpm higher than the tach. So the tach seems to be reading a little low, so I might actually be reving to 7000 before fuel cut at 7000. Can anyone confirm the the RPM of stock revlimiter for e36 m3 1995?

Well if there was paper on the chip it was aftermarket , all stock chips have a silver colored label generally have the texas instrument logo on them

Also stock m3 revlimit should be 6800 and an aftermarket chip should bring it up to 7200.

[TWRViper]

Last night:

-Speed sensor, blk/wht wire - ok connected
-Tach seemed off by 150-200 rpms compared to hall effect sensor

I have a m3 instrument cluster and it doesn't seem to have a CEL. I tried probing pin 8 grey wire on the DME which should be the check engine light output on the computer and it never changes. I was hoping to be able to probe the computer to check for any codes. Maybe the aftermarket chip (that it seems like I shoud have but can't confirm) doesn't send codes? I will call TMS today. I hope to eventually get the CEL to work.

I don't think I was scammed withthis car. It pulls very hard. If it weren't for the dyno plot, I don't think this would be an issue.

[aeryk7]

Good, get your computer scanned for an CE code and work from there. I dont think you were scammed i was thinking the guy who had the car before you got scammed. Remember its very easy to rip someone putting an engine in a car it doesnt belong because it hard to base its feeling to any stock car that should feel a certain way ,hence put an m50 in an e36 m3 and you will probably be able to tell. You stuff it in an e30 and it will feel great either way because of the power to weight. Oh yeah and by the way with me and a passenger i will stay door to door to an E46 M3 loose the passenger and i put a carlength on them , not exactly what you are seeing . Dig deep find things effecting performance and start annihilating people.

[aeryk7]

Check out my car accelerating my car weighs less than your but still and i still have much room for improvement

http://www.r3vlimited.com/board/showthread.php?t=75260

[TWRViper]

Nice videos! Mine doesn't seem that much slower than that. I don't where to look to confirm that I have an s50 besides the "BMW M Power" valve cover cover.