Frank Macaluso's E30S62 Swap Thread

[Garageaholic]

That's not true at all. The M5 has one servo that controls all. Same as the S54 only it has spots for 2 linkage connectors not just one. Take off that intake plenum and you will see what I'm talking about.

For future reference the E46 pedal is a perfectly viable alternative and much easier to install.

Interesting. Yeah I have yet to take off the intake plenum, but I will be doing that shortly. Thanks for the useful info. Good to know I have a backup plan if it doesn't work out.

Now on to some updates......

[Garageaholic]

Updates 6/22

So I finished the throttle cable - yet to finalize the welds and paint it all up.



I did a pull test on the crimp. It takes only 9-10lbs of force to pull the potentiometer. The crimp held way more than that. I got tired from pulling so much, in fact. I want to strengthen it by soldering it or brazing.



I also put the transmission back on the S62, ready for re-installation for things like oil filter bracket, headers, and final electrical.

check out the cruise control setup that I'm implementing. This way of doing the installation, I can keep the existing cruise control system while adhering to the fly-by-wire system for the pedal pot.



Also, I have the oil temp sensor (left) and coolant temp sender (right), and the corresponding aluminum bungs for custom welding into their correct location.

The Oil Temp Sensor is M12x1.5 and the Coolant Temp Sender is M14x1.5

The goal here is to keep this car looking and acting like a stock car completely. I think I'm achieving that objective.

[Jean]

Kudos! S62 swaps are no joke.

[MT325is]

Wow it's coming along quite nicely actually! Keep it up!
It's good to see people doing it and documenting this swap finally!
Can't wait to see the finished product!

[RobertK]

Interesting. Yeah I have yet to take off the intake plenum, but I will be doing that shortly. Thanks for the useful info. Good to know I have a backup plan if it doesn't work out.

Now on to some updates......

If you do, whatever you do, don't disconnect the linkage. Resyncing those itbs are a bitch.

[Garageaholic]

I decided to purchase an e46 pedal pot and wire it up that way. Thanks Robertk for the advice. I will come up with a creative solution for adapting the cruise with the e46 setup.

[Turk]

Just be careful about mechanical intervention in an electronic world. Test on the backgrounds before going out in public :)

[Garageaholic]

Thanks for the advice and the help today, adem. Always a big help with this swap....

[Turk]

No Problem, will always help out if I can ;)

[M3 euro ltw]

S62 vs S54

Good advice coming in on the project, I was tuned out for a while.

Of note is an interesting feature the S54 has that the S62 lacks.

The DBW motor in the S54 has a TPS, AND there is one along the axis of the actual TB. This gives the DME a chance to make sure there is a back up or safety TPS in place, and any discrepancy is presumably going to put you in limp mode.

The S62 also has two TPS sensors... but there is one for each bank in the case of the S62...nothing on the DBW motor. The similar architecture really points to the two platforms being developed simultaneously....

Interestingly enough on the S65 there are a pair of dbw motors which is more complex, and some standalones may not accommodate that as easily.

So Turk... how long before you can reflash for that S65 for us? That would be sweet.

[Garageaholic]

Good advice coming in on the project, I was tuned out for a while.

Of note is an interesting feature the S54 has that the S62 lacks.

The DBW motor in the S54 has a TPS, AND there is one along the axis of the actual TB. This gives the DME a chance to make sure there is a back up or safety TPS in place, and any discrepancy is presumably going to put you in limp mode.

The S62 also has two TPS sensors... but there is one for each bank in the case of the S62...nothing on the DBW motor. The similar architecture really points to the two platforms being developed simultaneously....

Interestingly enough on the S65 there are a pair of dbw motors which is more complex, and some standalones may not accommodate that as easily.

So Turk... how long before you can reflash for that S65 for us? That would be sweet.

That first line in your post .....you mean s65, not s54? Right?

[M3 euro ltw]

follow-up

That first line in your post .....you mean s65, not s54? Right?

No, I did actually mean that the S54 has a TPS on its DBW motor and on the TB assembly.

Look closely at the S62, and there is no TPS on the DBW motor. Instead there is one on each TB assembly. Still two TPS... but no back up on the DBW motor...just one for each bank.

If it was critical to watch TPS on the motor AND on the TB assemblies, they would have retained a third TPS for the motor on the S62 I guess....

I'm not sure how specific the error codes for the S54 are... but one could imagine one that is "Broken mechanical connection between DBW motor and throttles". They would know the motor is functioning properly from its TPS... but not see movement at the TPS on the throttles.

On the S62 if the pair of TPS don't move at all, the problem could be in a variety of places, electrical around the DBW, or mechanical to the TB assemblies. Its just a little less data available to trouble shoot.

No implied criticism, this is just an unusual difference. I don't know much about the S65 other than a pair of DBW motors, one for each bank.

[RobertK]

He's right. The S62 and S54 have similar looking throttle actuators but the S54 does have the dual TPS setup.

I think you appreciate the ease of the e46 gas pedal.

[Turk]

So Turk... how long before you can reflash for that S65 for us? That would be sweet.

We can already do the s65 and s85 motors plug n play. They are however a fair bit more complex, both physically and digitally. Our S65 Pacakges start from £3000 if anyone is interested. The setup utilises the original management just like our s54 and s62 kits.

Ps. M3 euro ltw, Pm received. Im away from my laptop at the mo so will get some info across asap ;)

Thanks

[sprancenatu]

Cheers! Nice info on your swap. I'm in the middle of the same swap, but taking a different approach.
The only glitch in yours is that it appears you're trying to use the same flywheel you were using on the m60, which has no inductive pick-up for the crank sensor... good luck with that!
I'm using the complete M5 drivetrain (engine, gearbox, driveshaft and diff)... complicates things a bit, but :)
I guess I'll open a thread on the swap once completed, as there isn't that much info on s62 swaps out there.