My 130i Build

[Hutty008 40]

Before the next few months of overhauling the car this is some previous stuff to catch up on.

IMG_20250308_104937_536.webp

[Hutty008 40]

And these are some of the part that I have been collecting this year and it will my job to install over the next 2-3 months ready for summer. Main things with be an M3 LSD, axles, steering rack, rear subframe, rear spring arms and some M3 coilovers. Along with f8x m2 brakes a GM to 6hp21 swap just to name a few.

[M3AN 4148]

Wow, that's going to be quite the overhaul!

Should have purchased mine, much less work. 😉

[Hutty008 40]

5 hours ago, M3AN said:

Wow, that's going to be quite the overhaul!

Should have purchased mine, much less work. 😉

If your's was for sale a year ago when I bought my car I definitely would have. Your car would have been a much better starting point. I keep a spreadsheet of how much I have spent on my car and it hard to believe how quickly things add up.

[Hutty008 40]

Started getting the shocks and brakes off today, also test fitted the f8x brakes while I still had the chance. Next time this car rolls under it own power it going to be a completely different car. Its going to take a while but it will be worth the wait.

[M3AN 4148]

F'ing love those wheels.

[BreakMyWindow 1971]

Awesome car! How much do those wheels weigh? 

[Hutty008 40]

11 hours ago, BreakMyWindow said:

Awesome car! How much do those wheels weigh? 

They are a staggered set 8 inch front and 9 inch rear, I weighed them when the tyres where off for painting and they were roughly 8.8kg for the fronts and 9.5kg for the rears

[BreakMyWindow 1971]

5 minutes ago, Hutty008 said:

They are a staggered set 8 inch front and 9 inch rear, I weighed them when the tyres where off for painting and they were roughly 8.8kg for the fronts and 9.5kg for the rears

Decent bit of weight savings, at least with the style 207’s.

What’s your experience with temps on the track? Just fitted an LCI cluster to mine so i can back off when it gets to north of 130.

[Hutty008 40]

On 7/5/2025 at 7:42 PM, BreakMyWindow said:

Decent bit of weight savings, at least with the style 207’s.

What’s your experience with temps on the track? Just fitted an LCI cluster to mine so i can back off when it gets to north of 130.

Sorry for the delay mate, highest temps I have seen is only 115 degrees.

[Hutty008 40]

Dropped the subframe today. I decided last week to stay with the non-m subframe as the trailing arm mounts on a slightly different angle, it would be ok as in putting ball joints into there but just doesn't sit right with my OCD ( can be seen in the photo below ). As such I order some hardrace toe arms instead of using the M3 ones. Next step is to install the aluminum subframe bushing which should turn up tomorrow, replace the diff bushings, install hardrace toes arms with eccentric lockout, replace the trailing rubber bushings with ball joints and install the m3 spring arms ready for m3 shocks. Should make for the perfect rear end, fully ball joints and solid subframe bushings.

[Hutty008 40]

Started today off with some odd jobs. New coolant expansion tank, I used an n55 one which all bolted up, has a much better level indicator which was the reason I made the switch, I even transferred over the factory Japanese sticker. Also did a new geniune BMW upper radiator hose, very surprised the old one was not leaking as it was completely f*!ked. Along with that I did a new hood latch as the old one didn't have the yellow rubber piece and was surface rusting and I installed a new power steering reservoir as with the M3 rack going in I want the whole system cleaned out. Next week I will be doing a new Eccentric shaft sensor as mine has been seeping oil though the pins and will be doing a new valve cover while I'm there as mine is original and there is no way I'm doing that good again any time soon. After that I will be dropping the front subframe to the the oil pan gasket, some new engine mounts and the water pump feed hose. I noticed when I did the water pump and thermostat that it was a bit swollen from past oil leaks and I have already replaced the other u-shaped hose next to it so that's the last one on my list.

[Hutty008 40]

These are all the rear arms I will be running. I previously converted the M3 upper arms to ball joints on the knuckle side using through the use of CMP engineering shims.

Edited Thursday at 04:23 AM by Hutty008

[Hutty008 40]

Also a lock at my exhaust setup for those who it might insert. Muffler has a bypass pipe to the valve side and has the first camber pipe wrapped. The resonator has also been wrapped. And the mid-pipe has been crossed over and had some added in to make it equal length like the laptop exhaust.

[Hutty008 40]

Front subframe out ready for the sump gasket job. It cleaned up real good and I swapped the M3 steering rack on ready to go back in. Before that though there is lots and lots of cleaning to do to the underside of the engine bay, then new sump gasket and engine mounts can go in. Probably my favorite but about having it completely apart is to clean it spotless.

Edited Sunday at 10:36 AM by Hutty008

[Hutty008 40]

Rear subframe prepared and ready to go in. Treated the surface rust spots were the weld lines were and painted any gaps in the paint, low effort compared to refinishing the whole thing but should definitely prevent further rust. Installed all the new bits as well, aluminum subframe bushings, super pro diff bushings, ball joints in the trailing arm, M3 spring arms, hard race toe arms, SPL eccentric lockout kit and new knuckle side bolts.

Edited 5 hours ago by Hutty008