'90 325i S52 to S54 '06 Z4M w/ ZF 6 Speed

[Staszek]

On top of this, since my wife is over me working on the car, my shop has been helping (IE me paying) for them to finish this.

I forgot to tighten a hose clamp to the heater core, and when pressure testing my modified radiator for the lower coolant outlet sensor, found a leak...in my cabin again. Yay!

Don't know if it will be worked on next week as my main guy Chris (THANKS BTW you are a huge help on and off the track!) is out. I was hoping this week. Maybe 2 now?

I'm so nervous about that. I changed my heater core, changed the gasket, tightened and rechecked everything. So far no leaks but really havent driven the car.

Really scared about that with a brand new carpet in there!

[dude8383]

Its always something! At least it happened in an environment where it can be dealt with and not on the side of the road with coolant all over your feet.

I pressure tested my system multiple times before getting every leak taken care of. I know for a FACT that I'll find some more leaks once I start driving the car. Add some heat and expansion to the mix and all sorts of fun things should start happening LOL!

[R3Z3N]

On top of this, since my wife is over me working on the car, my shop has been helping (IE me paying) for them to finish this.

I forgot to tighten a hose clamp to the heater core, and when pressure testing my modified radiator for the lower coolant outlet sensor, found a leak...in my cabin again. Yay!

Don't know if it will be worked on next week as my main guy Chris (THANKS BTW you are a huge help on and off the track!) is out. I was hoping this week. Maybe 2 now?

[R3Z3N]

For anyone wanting a Hybrid Can solution to utilize DSC as well, here is a product which will serve our needs:

MK60 Hybrid CAN solution


Single CAN standalone

[R3Z3N]

So found this gentleman that will sell a kit with necessary hardware to adapt the MK60 wheel sensors AND modify the E30 steering column to work with the steering angle sensor:

MK60 Wiring and Facebook Contact

[R3Z3N]

Damn, the AP RACING abs compatible Master Cylinders are 8 weeks out. I am just going to toss Tilton 76s in for now, maybe later upgrade to a Tilton hanging pedal solution that is a touch easier to work with.

Looking into installing an MK60 now too

[R3Z3N]

So I bought my first non-hi res laptop, a Lenovo Yoga 260 for working on the car and maybe trying my hand at an Arduino because the 2018 MacBook Pro TouchBar is too nice to touch with greasy hands. I feel sorry for those running a 1080p screen on Windows. I might resize all the pics to be under 1920x1080 constrained. Also as a IT specialist, Apple NEEDs to step up their game. I am joying the trackpoint and touch screen with tablet ability. Hmm, maybe once a trackpad comes along that is as good as Apples, I shall switch and then virtualize OS X instead...

Any thoughts for that? I'll also be eventually filling in a few more blanks in the OP from later posts that should get merged in the first several such as showing the Airbox modification, or brake setup etc...

[R3Z3N]

Gary at Tilton rocks. He thinks #2 will be best, as I can quickly swap the pivot point at the MC bracket, yet decently streetable, however Tilton does not make an MC unit that is compatible with ABS WITH the current mounting that I have.

AP Racing does CLICK HERE

Tiltons are ~$105 each
AP Racings are ~$375 each

Do it right or go home. Gary from Tilton stated that if using a non ABS MC, the seals will get nibbled away when ABS triggers, and there is a chance it will bend the balance bar with the back bounce pressure. Soooo...here's to spending money!! Grab a beer with me please, I need another tonight.

He mentioned installing the overhang pedals instead...would love to, but AP Racing will have to do. So sorry Gary. I really really appreciate your time. Maybe someday I will swap to overhang pedals and Tilton ABS MCs, especially as it would provide easier maintenance IMO.

1. Predictions for your master cylinder bore size are 13/16” front and 15/16” rear with a spec. 7.1 pedal ratio at 100lb. pedal effort.
2. Predictions for your master cylinder bore size are 3/4” front and 7/8” rear with a spec. 7.1 pedal ratio at 85lb. pedal effort.
3. Predictions for your master cylinder bore size are 3/4” front and 7/8” rear with a spec. 6.1 pedal ratio at 100lb. pedal effort.
4. Predictions for your master cylinder bore size are 7/10” front and 13/16” rear with a spec. 6.1 pedal ratio at 85lb. pedal effort.

This is with E36 M3 from brakes @ 60mm sliding caliper and Wilwood Superlights Quad Piston 1.25" x 1.12" and a pedal ratio's of 7:1 and 6:1 which I have. He needed rotor sizes and weight distribution of the car. Without driver and with driver after Chipotle but without fuel.

[R3Z3N]

Got in touch with Tilton to help me choose my MCs to balance this thing with the 6:1 or 7:1 pedal ratio I have with this setup. Hopefully more info soon.

[R3Z3N]

^If I have drone, I will be getting that fixed, but I don't mind the rasp while accelerating.

[dude8383]

Would love to hear the setup. I'm going to be crossing that bridge REAL soon. Im concerned about drone and rasp with these motors...

[R3Z3N]

Well, car drove off to my mechanic just fine, no misfires....no codes thrown from them and of course I reset codes while wanting it to toss new ones for them.

Got compliments on the exhaust sound, I still have no idea. My Mishi Rad has a pinhole leak, going to warranty that tomorrow. They will shorten the AC hose which is slightly in the way of the RAD hose, bleed brakes, add the E46 Rad Hose sensor (as its coming off anyway) Not sure if I will fill the AC, might just pull the AC belt for now while I wait to install the proper way to run it.

I am hoping the brakes work fine, but if not I will step up in Master Cyl size. I want a firm pedal that engages close to the DBW pedal for good heal/toe.

[Staszek]

I was torn on the exhaust tips, but sleeper is where it's at for me. I had dual 3" straight tips on the S52 I believe which looked great IMO for what the exhaust was. Double walled would have been nice. For the cost this was epic ($1500)

Later I shall drop the exhaust and get it ceramic coated for protection I do believe, or just paint in silver high temp paint for 1600ºF. It is 2 sections with V-Bands. The shop fixed my O2 clearance problem on the headers which is just tits.

And btw yay DMV appointment made. The online system doesn't recognize that I own the car (I created a new online acct), and I need to get it registered (last was 2014), Registration was paid in Sept 2015, but no smog done since, so of course no registration valid even though it is paid.

I agree, I wanted to have an E36 M3 Exhaust on my car and wanted to leave those tips. Unfortunately with the way that exhaust hangs unless I do work on the body they wouldn't fit right (or hang it too low). We were able to put in on stock hangers but the exhaust tips needed to kick out to the left so we had to cut the original tips off and kick them. Although my original tips were not in great shape.

[R3Z3N]

I was torn on the exhaust tips, but sleeper is where it's at for me. I had dual 3" straight tips on the S52 I believe which looked great IMO for what the exhaust was. Double walled would have been nice. For the cost this was epic ($1500)

Later I shall drop the exhaust and get it ceramic coated for protection I do believe, or just paint in silver high temp paint for 1600ºF. It is 2 sections with V-Bands. The shop fixed my O2 clearance problem on the headers which is just tits.

And btw yay DMV appointment made. The online system doesn't recognize that I own the car (I created a new online acct), and I need to get it registered (last was 2014), Registration was paid in Sept 2015, but no smog done since, so of course no registration valid even though it is paid.

[Staszek]

Looks amazing, cant wait to hear that!