Have you checked for boost leaks? Particularly in the hose that goes from the WGFV to the waste gate.
misfire issues on boost and solutions.
Collapse
X
-
Ben
Calgary, Alberta
Canada
1991 CQ e//S2 w/ RS2 spec 3B 20vt
Panther Black Metallic
www.moda-architecture.ca -
well i made the changes to vems and performance has improved. the power must be betrer a sit feels stronger and cleaner. i left the ik24's in to try to get a good coil improvemen test.
the weather aint the best so hard to test but i managed to ramp boost in to a gate pressure of 1.35bar and basically hitting 1.5-1.55 bar around 4500. there is an undderlying misfire there still. only slight in comparison
car feels lots stronger. gonna need a mate now to either drive or help with feedback.
i will put the plugs in later then try those. its too late/not ready for teh rollers but the incentive to get there and help charity at the same time has had me pull my finger out this week.Comment
-
thanks for the offer Vas. a mate with good facilities - ramps etc will be helping. not sure if he is driving or sitting yet. he's a better driver than a mapper. well he's not a mapper but can build anything. he has a rally licence , a 997 c2s and is building a mk1 4x4 16vt at present. im gonna show him what a proper car is like . lol
with the onset of boost much faster and more the car is altogether quicker. not sure if it'll do what yours does at 2 bar compared with my 1.5 but i aim for 2 bar too. im pretty sure there was a car on here around 2 years ago that had the same turbo and made 530 or so at 1.7bar.Comment
-
Well it seems the firmware i'm going to run is different to you guys in this respect Marc ( ever helpful ) has given me the settings I should be looking for with his HO kit
Comment
-
this guy does not describe the specific settings for the HO coils,but just what is needed to calculate where the max dwell time can be obtained.
i havent scoped my dwell times, but i will have a look and see on the 1.1.27 what is going on.
i calculated that if with the mapdwell of 10 you can get the +0.4ms @ 237kpa, with 5 you get it at 257kpa. so it is only a matter of testing where you get the misfires to decide how soon you need to have the added amount of dwell.
good stuff!
Once i manage to sell a few parts ill go for the HO coils as well. I may be able to sell the current coils as wellComment
-
I have a set of the 034 coil packs and wiring kit if anyone is interested. PM me. Removed as i fitted the 1.8T units as they look better. The 1.8T kit runs fine at 450 ish bhp on LPG (GAS) on stock plugs and aan ecu. Just for info...Comment
-
well i have managed to dial in 1.75bar. its not done yet an in all honesty i need to restructure the tables and req_fuel now. ill start to write a new map.
im still trimming out fuel. the 044 is a lot stronger than the aby fish tank spesh. i can see its strength at a few rpm points. especially high up. i had 1.3 bar about spot on. its now slightly rich showing it was going full at 1.3 bar. every bit i trim out it picks up a little stronger.
if i can see 2 bar id think maybe thats towards the limits of a single 044.Comment
Comment