PhotoShoot - 1M Undercarriage Photos

[Dan Parker]

I put the car on jack stands tonight to install wheel studs and inspect the calipers since I am changing pads next week. After rolling around under the car I thought I should take some pictures. I didn't realize how much BMW focused on the undertray and making use of the airflow. With little inlets cut into the undertray to cool the transmission and 2 different flaps in front of the rear wheels to direct the pressure away from the wheel well I was impressed with the attention to detail. It reminds me of the undertray of my old Lotus Elise. There have been so many pictures of the exterior and interior of our cars I thought some pictures of the underneath were overdue.

[Dan Parker]

The rest...

[MDORPHN]

Dan -

Good stuff!

From markings, I surmise that the 1M is running the same springs as the M3.

I know, of course,that the subrame is the same but figured that they might have used different spring rates.


Neil

[TunedM2C]

I assume that AFE intake is the same one used for a 135?

[Dan Parker]

Then it must be a "real" M car after all!

I assume that AFE intake is the same one used for a 135?

Yes it is. I installed it and the intake scoops last night. We hope to dyno the car in the next week or 2 so I'll put the factory box back in first.

[Redadair]

Great under car pics. I see the M3 markings on the spring as well, but the 1M is almost 400 lbs lighter than the M3 and it seems that they would use different spring rates for the 1M. I obviously don't know for sure but this is a best guess?

Both 1M and M3 were both tuned on the Ring for spring, shock rates and sway bars.

[TUNEDM3]

Were their centralized jacking points on the car? Where did you jack up from in order to get it on the stands?

[bulldog_yyc]

great pics!

[MrRoboto]

Thanks for the pix Dan. Two quick ones...Are the black kidney grills the same as those on the 135 and what did you do with your exhaust tips?

[discoboy1]

Originally Posted by MrRoboto

Thanks for the pix Dan. Two quick ones...Are the black kidney grills the same as those on the 135 and what did you do with your exhaust tips?

+1

[My535i]

Nice pics...very cool. Enjoy that little beast!

[Dan Parker]

There's a jack point centralized under the engine. I lifted it from one of the front sides, put a stand under the side rear and central front then used a second jack on the other side and lifted from that side front. It really takes 2 jacks to do it right.

As far as the black kidneys they are the same as a 135. I painted the tips with 1200 degree paint.

Off to Helen GA to see some VW's at the yearly show....

[Drillslinger]

Hey Dan, did you remove the tips to paint them? If so, how hard was it?

Viel spass in Helen

[TUNEDM3]

Originally Posted by Dan Parker

There's a jack point centralized under the engine. I lifted it from one of the front sides, put a stand under the side rear and central front then used a second jack on the other side and lifted from that side front. It really takes 2 jacks to do it right.

As far as the black kidneys they are the same as a 135. I painted the tips with 1200 degree paint.

Off to Helen GA to see some VW's at the yearly show....

Thanks for the response.

[Dan Parker]

No, I used painters tape and a lot of newspaper. It took about an hour. 3 thin coats of paint. After I did it I realized I could have removed them

[adrean8j]

I seem to remember reading that the front suspension components were the same as the M3 but the rears were different?

[M3Newbie88]

Originally Posted by Tuned1

I assume that AFE intake is the same one used for a 135?

The Engine bay looks 90-95% the same as the 135i.. so I am guessing alot of mods can be transferred over.. essentially the 1M is the 135i with the powerkit in a wider shell with M3 suspension components.. which would be how I would simplify the description... of course there are others who would totally disagree with me lol..

[timhatimay]

Wow, the M-diff with the finned cover just looks so spectacular everytime I see it...I love my 135i, but I'm super jealous of that!

Do you have active steering, or is this just a different reservoir for the 1m? Looks to be the same as the one on the 135i with active steering.

Also, anyone else notice that brace underneath the car (right by the resonator at the rear of the mid-pipe). I don't remember seeing that on my 1er; is this just for the 1M, or am I crazy? I guess I'll have to crawl under and verify. Anyways, nice looking undercarriage!

Tim

[Franklin Joseph]

Originally Posted by Dan Parker

Yes it is. I installed it and the intake scoops last night. We hope to dyno the car in the next week or 2 so I'll put the factory box back in first.

what does the butt dyno say about this mod?

[adrean8j]

Originally Posted by timhatimay

Also, anyone else notice that brace underneath the car (right by the resonator at the rear of the mid-pipe). I don't remember seeing that on my 1er; is this just for the 1M, or am I crazy? I guess I'll have to crawl under and verify. Anyways, nice looking undercarriage!

Tim

Yeah that brace is on the 135i as well...

[Dan Parker]

what does the butt dyno say about this mod?

It's really hard to tell. The car is very very fast. If I had installed this in a month or 2 I would probably notice a difference but right now it just feels very fast. The grill scoops look like they must do a lot to force air into the intake so with more speed comes more air. After I track it in a few weeks I'll have a better idea how quick the car is with data acquisition. I guess I've learned my butt can lie and only data is to be trusted.

[///M1]

Great pics, thx Dan! Couple of questions:

1. Can you tell if the mid pipe is the same as on the 135? Wonder if I can reuse my Maddad mid section?

2. Also, is there a CDV on the 1///M?