Sorry for late answer but here’s my spec:
Series 1 1994 r33 gts25t AT converted to MT using r32 rb20det gearbox.
Custom self made clutch pedal
os giken twin plate clutch
two pins connected to let engine start
speedsensor from AT connected to wire harness but didn’t fit to gearbox So it’s somewhere inside in the car so I can add km to tachometer after I measure distance with gps. Don’t want to pay 150€ for sensor if I probably will change gearbox with adapter to bmw one. Car barely runs and winter is coming so no point right now
engine after rebuild
Stock automatic ecu and at tachometer
Aftermarket oil cooler with separate sensor so oem oil pressure is unplugged
koyo 53mil radiator
Mods which may cause the issue:
600x300x76 front mount intercooler
Cone air filter blitz
Removed recirculating valve
Slighty bigger maxspeedingrods turbo
adjustable manual boost controller (didn’t set it but last time I checked on aftermarket gauge it was 0.4bar, asaik oem is different unit 7(unit) don’t want to rev it too high bcs it made max 70km after rebuild
Fuel pressure regulator set to idk 30-32psi at iddle
dw300 fuel pump
stock injectors
check valve right in front of fuel rail
i thinking sth wrong with afr it getting too much fuel and too less air or it needs that recirc valve?
on warm engine it took 5-10 seconds to start it. After I put way bigger battery, battery terminals and new ecu coolant temp sensor problem is gone
my old turbo spill 150ml oil into intake so cleaned it.
I checked for error codes and it given me 55 - all good. I bought consult so will plug in soon to check if it give me better feedback. Also I will install oem recirc valve tomorrow. Small hose going to manifold but where should go 30mm pipe from this valve? I’m front of turbo inlet, after maf/ right after turbo outlet / or it doesn’t matter?
actaully can install it in these two spots (blue circles)