To those who flipped the throttle body on the M30 motor:

[iamcreepingdeath]

I tried fitting an e34 m50 radiator, it was too wide. Maybe the other ones work, I don't know. I ended up with a z3 1.9 radiator which hopefully is enough cooling but I haven't had a chance to find out yet.

Odd. I have been reading that E36 radiators fit. Anyone have experience with this?

[szacsi72]

Hey Sam,

I'm personally using an E34 radiator with the integrated reservoir.
Get the kit from AAS, M50 TB will fit much nicer; M30 will be wacky with the throttle going all over the place (you can see my solution with that 3D printed hinge. Not nice). They're super nice people too!

Here's a photo of my setup. I'm using the M30 TB here; but I'm also ditching it to mount an M50 TB soon.


-David

E34 radiator, eh? Interesting. I tried fitting an E32 radiator in my E28, and it was too wide. So an E34 radiator works? I may do that, if it has the integrated overflow tank. Do you use an E34 M30 rad, or M60? Or is there a difference?

Also, quite a beautiful engine bay you have there! One day I will make my engine bay pretty, but that'll be years down the road most likely.

E34 radiator, eh? Interesting. I tried fitting an E32 radiator in my E28, and it was too wide. So an E34 radiator works? I may do that, if it has the integrated overflow tank. Do you use an E34 M30 rad, or M60? Or is there a difference?

I tried fitting an e34 m50 radiator, it was too wide. Maybe the other ones work, I don't know. I ended up with a z3 1.9 radiator which hopefully is enough cooling but I haven't had a chance to find out yet.

I tried fitting an e34 m50 radiator, it was too wide. Maybe the other ones work, I don't know. I ended up with a z3 1.9 radiator which hopefully is enough cooling but I haven't had a chance to find out yet.

Odd. I have been reading that E36 radiators fit. Anyone have experience with this?

I will snap some pics in the upcoming days & let you know the part number for my radiator. It's an M50 radiator. Not all of them fit, some are wider.
Mine is a 35i and it's more than enough. I'm using a spal push fan, and even in the hot summer that single fan is only on around 30% time on idle even with a 80C thermoswitch.

[szacsi72]

Hi yall,

Sorry, I was mistaken. I'm using a 440x440 E36-E30 radiator.
Nissens, PN: 60623a

Here are some pics:


However I've only now decided that I am ditching this for an E28 or E34 535i radiator and I hope to use an E34 M30 overflow tank.

[iamcreepingdeath]

Hi yall,

Sorry, I was mistaken. I'm using a 440x440 E36-E30 radiator.
Nissens, PN: 60623a

Is that the radiator for the 4 cyl E36?

[szacsi72]

I checked the part number, it says E30 4cyl, E36 4 and 6 and E34 6 cyl too.

[Foonfer]

Very nice clean setup. The tap into the manifold is a smart move, keeps intake flow on the "cold" side of the engine.

Any issues with operation of the AFM the way you have it? Those things usually are placed so the axis of rotation of the gate is somewhat vertical, and yours is almost horizontal.

Also, I don't see an idle control valve - are you using a MAP (Manifold Air Pressure) sensor?

[szacsi72]

Very nice clean setup. The tap into the manifold is a smart move, keeps intake flow on the "cold" side of the engine.

Any issues with operation of the AFM the way you have it? Those things usually are placed so the axis of rotation of the gate is somewhat vertical, and yours is almost horizontal.

Also, I don't see an idle control valve - are you using a MAP (Manifold Air Pressure) sensor?

No, I just removed the ICV alltogether. Idles fine without one, just raised idle around 100rpm..
No issues with the AFM, this engine management is an old-ass crap, so honestly a 1-2% difference in measured flow just can't be noticed.. I'll be ditching it later for a standalone.