Cockroach Individual M3 2/13 bench flash sidequest

[samthejam]

Random Side Quest,

I believe long term is to just buy a tune from Epic be locked out, because having knobs to play with will make me go insane. I also want to do time trial this or next year moreso next year.

But anyways, if I will be locked out it will be on separate DME not my only one. The engine I bought came with it, so it has been test mule for learning some more, I refuse to buy the ECUworkz tool.

Don't have a pic of the final harness tidied up, but validating I did it correctly. Was very straight forward.

Untitled by Sam DaJam, on Flickr
Untitled by Sam DaJam, on Flickr

Fun little side quest, was to make a bench harness, flash euro firmware on it and do all the deletes. So I did a full program flash and did all the specific changes like GPS stuff for my car and all the other mods with headers. EWS Delete etc. Also to validate everything I need for no CEL on my car as well. So went to the yard bought connectors from a non-m and pinned in the canbus, soldered it up and got a power supply off Amazon.

The Euro software definitely isn't as strong but you can tell it's much better calibrated for idle and all that. Which of course makes sense. I have an HTE flash, on my other DME. I have a few experiments I want to give a gander, but can't find a tool I found on wayback from m3forum where someone made a tool to better visualize cam timing changes. But I want to verify some injection timing changes with some vanos changes see if there is a correlation with how they are messed with together.
But anyways yea random side quest to make sure the DME works. I want to see if I can give it ago applying the performance changes to the euro firmware, also need to research playing with the axis values or just interpolate it with python or excel in some way.

[George Hill]

Maybe, my car is likely going to get a fuel cell in the trunk, but until then… and depending on costs I might be able to get one or two others on board

[Bry5on]

You still want one?

Yessir! Maybe George Hill would too?

[bigjae46]

One vote for removing the rear floor panel and making that your next carbon project

You still want one?

[samthejam]

Contact info for that car? I'm looking for a rear subframe and maybe some spare axles.

It's on marketplace I''ll dm you on facebook

[Bry5on]

Contact info for that car? I'm looking for a rear subframe and maybe some spare axles.

One vote for removing the rear floor panel and making that your next carbon project

[bigjae46]

As y'all know these cars are getting pricey for better or worse. So finding good deals on coupe anything is getting tough. There was a local part out, on a M3 that got wrecked hard. It looks like it was garaged and well kept so a shame it died. However the guy usually parted out E90s so I was able to score some items that Ive had trouble finding.

Contact info for that car? I'm looking for a rear subframe and maybe some spare axles.

[samthejam]

As y'all know these cars are getting pricey for better or worse. So finding good deals on coupe anything is getting tough. There was a local part out, on a M3 that got wrecked hard. It looks like it was garaged and well kept so a shame it died. However the guy usually parted out E90s so I was able to score some items that Ive had trouble finding.

Untitled by Sam DaJam, on Flickr
Untitled by Sam DaJam, on Flickr
Untitled by Sam DaJam, on Flickr

Untitled by Sam DaJam, on Flickr


A shift knob without paying an arm and a leg. I really enjoy the factory M3 one, but with the $500 price tag new and they don't hold up well. So glad I finally found one that was nicer.

Also been looking for one of these.
Untitled by Sam DaJam, on Flickr

Got both for $160 and than I was walking around the shell, and noticed the A-C trim still had the rubber intact. I was able to get both for $180. He damaged the left side removing but I stopped him in time it's still salvageable. But yea super happy to be able to do fix the window gasket with all OE parts without spending too much. I'll get the lower quarter panel rubber piece new.

Untitled by Sam DaJam, on Flickr

Ground Control FCABs coming in soon, but ill update more on that later

[George Hill]

They'll mount and balance them for $25 each too.

[samthejam]

RS4s can be ordered from Hankook Motorsports directly. They're in Austin. I think will the 3rd set of them on this car, I like them more than the ECFs. $265 a tire I can stomach. Just did that for now. Won't be the fastest but not competing anyways, if I was I'd get some used HO-HOs from my used tire guy anyways. Or maybe he'll get some more used A052s in.

[samthejam]

RE71s, haven't tried the rz but you'll pb again lol

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

[enjoy_m3]

RE71s, haven't tried the rz but you'll pb again lol

[bigjae46]

I just looked it up. A 245/40R18 A052 is $336, a 255/40R17 is $301. That is $140 per set of tires. You get a 100% payback on Fattycharged's wheels after 8 sets of tires. 2-3 years? As much as putting a car on track will ever make financial sense...this is one case that makes total sense if you have a limited tire budget.

Keep a set of 18s so you can run 18s when you get a good deal on a set of used tires.

[fattycharged]

I know a local someone with an extra set of new in box Arc-8's in a 17x9.5… $1100 keeps me from sending them back to APEX for a return… 😂


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[bigjae46]

You're good. I know how it goes!

I just have a lot of 18" wheels, what I ended up with.

George Hill does have some 17" SSRs... . I think also the selection in 17s, I only looked at 275s and the selection wasn't that great. However on the 255s that would open up quite a few options... hmm.

I also really enjoy how the car felt on the 265/35R18. The lower sidewall also had some clearance benefits. It is expensive to get all those things I like about the 265s though.

I was also betting on my used tire guy having a decent supply of 245 A052s to get me through the year. Doesn't look so

If you go with a 17x9.5 et35 wheel then you can go between a 255 and 275. Lots of 255/40R17s. Even in the 275/40R17s - Falken RT660s, NT01s, and Hoosier RCES are all reasonable.

Not a fan of the 660s but $1100 a set makes it bearable. I got 26 sessions which is impressive consider the amount of understeer I dealt with. My car likes to overheat the front tires so partly a setup related issue.