MegstuBMW

Anyone knows difference between EP91 and EP82 shifters? Can they be swapped?

Hi, I used wossner pistons. Also, car is currently on 1.5bar of boost + flamy launch control and flatshift , no problems.

100-200 kph is probably best for power comparison without tire matching . My time is 13.78s

Yes, this is still not final version, but it is very close.

Shifter feels very solid and precise, pleasure to shift every time 🙂 .

Nice, I think your tires might be better 😄 what are the dimensions of them?

Using dragy for measuringt, best I got on regular road 0-60mph is 5.3s, I can not launch it without massive wheel spin :-D. 60-130mph 16.4s. (no option to see 40-100 on dragy).

Thank you. With this turbo I can make 1.5bar at 3k rpm, but I tuned boost control to make power progressively. Power at low rpm makes more stress for gearbox, crankshaft bearing caps..

Thank you 🙂

Yes, I use k04-023, out of audi tt 1.8l turbo.

Thank you! Have not fixed power drop in high rpm, now I am thinking maybe bigger turbo would fix that. On first dyno graph, cam overlap was nearly non. I was on dyno after changing overlap and there is no noticeable difference (will upload photos soon).

Not sure if studs stretched, I have already assembled everything back. Will upload updates soon.

Maybe you are right. By the way, I used 10mm IRP head studs.

I think these braces is mostly to support intake and exhaust manifold from cracking-vibrating. I made one brace from turbo to block. Also intake manifold has one brace from intake plenum to cylinder head.

I see, thank you for info

At this point there is no symptoms showing fuel rail limit. Maybe sequential fueling is helping. About head studs, I just used IRP instruction that came with studs, there was no mentioning about heat cycles or different torque settings, I just trusted that. I do not monitor exhaust temp or pressure, that is good idea.

Wastegate is integrated, using standard fuel rail.

Not sure what do you mean head braces? All engine mounts I made from polyurethane rod, just cut off and grinded to fit in to original engine mount housing. Head gasket was Athena 1.2mm, 1.6bar boost, fuel pump WALBRO TIA 255 bolt on upgrade. From 6000rpm Nm is going down hill. My AFR is good, injector duty cycle does not reach 70%. Valve springs is upgraded, more than double strength compared to NA springs (not sure how it compares to 4E-FTE springs). Yes, intercooler piping, it is not big enough, good point. Exhaust diameter is 60mm, turbo is k04 from audi tt 1.8