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@BoostedSi maybe you could help him out?

Castor reduces turn induced camber mate. Always good to run a bit more castor on these cars.

Please tell me it’s not a RSX Racing diff?

How much you paying for the gripper out of interest? Pm me if you prefer. 👍🏻

I can change the title to have your new name in there, but the thread starter will always be your old username.

Anyone watched this build series? I found it the other day and I’ve watched them all now. Doesn’t go on for ages, but covers some really well thought through modifications.

😂😂

There’s something strangely satisfying about that wrinkle paint.

There’s sooooooooo many reasons why the f4r suffers with low oil pressure issues/spinning bearings etc etc. Bearing clearances, oil pump clearances/tolerances, harmonics, s**t flexible cranks, vvt solenoids - we’ve tried all sorts of ways to stop f4r engine failures.

Build quality and technology. I own an f31 and it’s miles ahead of an e91 in all areas.

There’s a guide on here for resetting it somewhere mate, so it’s worth checking you’re doing it right. 👍🏻

I think mine was higher with a new valeo clutch kit when I built the 230 motor tbh, but I seem to recall it did drop a tad lower after a few miles were put on it. You may also find your clutch ratchet isn’t resetting properly. I had to get a bit medieval with mine 😂

Oh it’s far more involved than that buddy! It’s a CS gold thread - trust me you’ll see it and understand! 😂 Yeah sounds like a plan mate, just don’t let it crunch for too long if it does - that’s where catastrophic damage occurs.

Their (BMW) core drivetrain is still RWD, but the higher power cars (F80 M5 for example) are going xdrive. That’s switchable on the F80 M5 though. G30/31 30d’s are all xdrive and not switchable

If all they need are synchros on 3rd and 4th gear, I can sort those out for £280 including parts. It’s extremely rare to see them requiring anything else tbh. That doesn’t cover the cost of removing and refitting the box though. You’d have to bring me the box once it’s out. Yeah or mt90 if you...

Bleed the clutch when you change the box oil - trust me, it’ll help as that fluid in the clutch circuit will have never been changed since it was filled at the factory! Clutch drag is one of the biggest killers in these gearboxes. Oh and redline mtl, or redline mt90 is THE best oil for these...

Yes, as with the water pump casting out of the way, you’ll be able to get on the bolts with a pair of vice grips. Whenever I’ve encountered this issue I’ve just used a small sharp chisel and knocked them round tbh. Even done it this way on sump bolts

Ah ok. I’ll drop you a message with what it is mate. 👍🏻

Are you signed up on bmw elite technician? Or does it not apply to bodyshop? If you are you’ll know why I’ve just asked that.

Google it

Who’s mapping it mate? I personally don’t think you need a knock sensor. It’s a mapping issue that’s fucked those pistons imo.

I have NEVER seen one of these fail mate, so I would suggest something else has been the cause of this failure. The bolts aren’t high tensile bolts either - just 8.8’s. When I convert them I use the Renault bolt on plate and bolts mate. Yeah it certainly sounds like it, but once one had...

Dragons breath on the wheels. It’ll shift nigh on anything.

Buy the proper straps ya tight fucker! 😂

Have the sensors been tested to prove that they’re working mate? Wired up correctly as well I assume?

Did we fit a gripper crownwheel and pinion lower final drive in your box mate? That may be one thing causing it as rpms/engine speeds/road speeds will be different to what the system was calibrated with. It’s not something I’ve had mentioned to me before though, but most people retain the...

Nah it’s not. It’s a fucked standard box as that will have killed the diff internally.

💪🏻

When I ran a standard airbox, I found that night heater hose out of the trucks fitted on the 2 inlets. I replaced both of those fabric pipes with the corrugated night heater hose and it allowed me to run them to better areas for cold air feeds. I even extended the fins in the bottom of the...

That’ll just be a gear issue. If it’s a bearing, it’ll whine in every gear mate.