The GT4 Build…M3 Edition…

[phefner]

Any interior work done…seats, cage?

Love the thread.

[ninekrpm]

Interior pics…

[E92inSG]

Originally Posted by phefner

Any interior work done…seats, cage?

Love the thread.

Just some mild interior mods.

[seanquest]

this is an awesome build, no seat for two? haha

[ninekrpm]

Been a while since I posted…

Car has been running great, driver starting to come up to speed…so have been focusing on seat time. Brought on a coach a few times out, that always helps.

That said, no major changes to the car…however, did start noticing an issue at high rpm; car made weird noise when on the throttle over 5-6K rpm - sounded like a baloon farting (sorry only reference I could come up with)

Talked to a few people and they all referenced that there is some leak around the charge air system.

Tried to visually / physically diagnose it, and everything pointed to the cold side of the cooler. The j-pipe specifically seemed loose/worn out at the throttle body connection.

Anyhow, decided to replace the j-pipe with the Evolution Racing piece (recommended by bimmerworld) and the bit the bullet and replaced the charge cooler while at it with the Bimmerworld / PWR unit. I have not done any cooling mods to date; so this the first piece. Will replace the rest of the coolers overtime.

Back out at Willow Springs next weekend - looking forward to testing with the upgrades.

Enjoy the few pics for reference - let’s see if you can spot the infamous bimmerworld haribo gummies

[ninekrpm]

Most recent thread...

https://f80.bimmerpost.com/forums/sh...1#post30626671

Going to lock this, and maintain the above thread only.

[drroc]

My intercooler split at Laguna a few months ago. It became obvious when I limped back home without a helmet, and I could hear all sorts of turbo wooshing noises Since I drive the car on the street and I have to deal with CA smog, I just replaced it with a stock unit.

[ninekrpm]

Originally Posted by drroc

My intercooler split at Laguna a few months ago. It became obvious when I limped back home without a helmet, and I could hear all sorts of turbo wooshing noises Since I drive the car on the street and I have to deal with CA smog, I just replaced it with a stock unit.

the turbo wooshing is better way to explain my issue as well - but I only heard it above 5K or so...

my factory cooler unit seeded to be OK, but I know it's days were numbered. I did track the car in some HOT 90-100 deg days this summer.

the next likely cooler upgrades I do will be the oil cooler and radiator. both from a preventative standpoint for now...