e39 540i 6speed Supercharged,
E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…
But you are installing new piston rings, right? You definitely want to make sure the end gaps are at the correct dimension so they don't but together and ruin your new engine.
It's a very important step in building an engine that will see forced induction (any engine really, but ESPECIALLY for forced induction). The additional heat of combustion causes the rings to expand extra, and when the ends butt together, the rings grab into the cylinder walls, breaking the ring lands of the piston, breaking the rings themselves, and tearing up the cylinder walls.
Dov, as Thad said, don't skip this step. You are at an advantage now to get this gap set correct vs the rest of us with stock gaps hoping we dont trash our motors. This fear is why I got the meth and now the intercooler to keep the ring temps as low as possible. Good luck with the build.
98 540i 6, 525 whp, 120 mph 1/4, V3 Si S/C'er @16 psi, W/A I/C, Water/Meth, Supersprint Headers, HJS Cats, 3" Custom Exhaust, UUC Twin Disc, Wavetrac LSD, GC Coil Overs, Monoball TA, AEM FP, Aeromotive FPR, AEM Failsafe AFR/Boost, Style 65's w/275's, M5 Steering Box, Eibach Sways, M3 Shifter, Evans Coolant, 85 Deg Stat, PWM Fan, 10" Subs, B.A. speakers, Grom Aux/BT, Still Rolling as my DD!
e39 540i 6speed Supercharged,
E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…
Gotta go wider than standard gap for FI.
98 540i 6, 525 whp, 120 mph 1/4, V3 Si S/C'er @16 psi, W/A I/C, Water/Meth, Supersprint Headers, HJS Cats, 3" Custom Exhaust, UUC Twin Disc, Wavetrac LSD, GC Coil Overs, Monoball TA, AEM FP, Aeromotive FPR, AEM Failsafe AFR/Boost, Style 65's w/275's, M5 Steering Box, Eibach Sways, M3 Shifter, Evans Coolant, 85 Deg Stat, PWM Fan, 10" Subs, B.A. speakers, Grom Aux/BT, Still Rolling as my DD!
Yes! "Build 'em too loose and nobody will know. Build 'em too tight, and everyone will know."
I like to use the largest multiplier that is listed in the specs, always works great:
148354d1419640681-installing-wiseco-rings-general-ring-installation-ring-chart-1.png
Engine is ready and i drive it to car wash station. Afr was grate 14.7 and everything was good. After washing finished i drive my car to home and realized that it is again become below 10 afr. Sometimes it is trying to come 12 but then again below 10. Opened oil checking sub and full loaded gas to check back pressure assuming pistons cracked again. But nothhing and pistons ring holding pressure.
- - - Updated - - -
I cannot understan what does this engine needs from me...?(((
e39 540i 6speed Supercharged,
E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…
You got that put back together and driving already? Superman! Did you set ring gaps prior to re-assembly?
Not sure why your AFR is not correct? What are your fuel trims?
98 540i 6, 525 whp, 120 mph 1/4, V3 Si S/C'er @16 psi, W/A I/C, Water/Meth, Supersprint Headers, HJS Cats, 3" Custom Exhaust, UUC Twin Disc, Wavetrac LSD, GC Coil Overs, Monoball TA, AEM FP, Aeromotive FPR, AEM Failsafe AFR/Boost, Style 65's w/275's, M5 Steering Box, Eibach Sways, M3 Shifter, Evans Coolant, 85 Deg Stat, PWM Fan, 10" Subs, B.A. speakers, Grom Aux/BT, Still Rolling as my DD!
e39 540i 6speed Supercharged,
E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…
Not fuel pressure. Fuel Trims from INPA.
98 540i 6, 525 whp, 120 mph 1/4, V3 Si S/C'er @16 psi, W/A I/C, Water/Meth, Supersprint Headers, HJS Cats, 3" Custom Exhaust, UUC Twin Disc, Wavetrac LSD, GC Coil Overs, Monoball TA, AEM FP, Aeromotive FPR, AEM Failsafe AFR/Boost, Style 65's w/275's, M5 Steering Box, Eibach Sways, M3 Shifter, Evans Coolant, 85 Deg Stat, PWM Fan, 10" Subs, B.A. speakers, Grom Aux/BT, Still Rolling as my DD!
Morning Gents,
Just made INPA diagnostic and have below video. I do not know exactely but for me looks like some problems with lambda. Isn't it?
e39 540i 6speed Supercharged,
E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…
It was good leasson and learnt for me to face with such a problem. Finaly i can say that issue solved. As you may know i have an AFR gauge on my second engine bank which reads driver site of engine. Today done video above where i noted that my bank 1 lambda is working properly and second one is not afr 10. I decided to change their place and noted that afr become 14.7 but exhaust still supereach. That means now lambda from bank 1 & 2 changed and problem started on bank 1. One of lambda is died and that was a reason. Tommorow will change.
e39 540i 6speed Supercharged,
E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…
There you GO! Bad lambda = bad fuel control.
98 540i 6, 525 whp, 120 mph 1/4, V3 Si S/C'er @16 psi, W/A I/C, Water/Meth, Supersprint Headers, HJS Cats, 3" Custom Exhaust, UUC Twin Disc, Wavetrac LSD, GC Coil Overs, Monoball TA, AEM FP, Aeromotive FPR, AEM Failsafe AFR/Boost, Style 65's w/275's, M5 Steering Box, Eibach Sways, M3 Shifter, Evans Coolant, 85 Deg Stat, PWM Fan, 10" Subs, B.A. speakers, Grom Aux/BT, Still Rolling as my DD!
Last edited by dovlet; 11-17-2017 at 12:25 PM.
e39 540i 6speed Supercharged,
E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…
Chnged and reset adaptations. Engine works very well...
e39 540i 6speed Supercharged,
E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…
Noted some horse power lose as expected. Drived against a car which usually 3 body behind me after 1km. But now i have a bit more gap against detonation. Also noted that all my power is until 6000rpm. After just loosing power and car does not run well. Any idea?
Last edited by dovlet; 11-19-2017 at 01:40 PM.
e39 540i 6speed Supercharged,
E36 v8 m62 with m60 headers, Turbp HX-40 0.6-0.5bar or 9psi, custom exhaust & Turbo manifold, injectors 440cc, ECU Invent EMS-2, Mishimoto Intercooler and oilcooler, etc…
Bookmarks