Greetings, its been a while since i have swapped this motor to my e30, but ever since, i have really bad gas mileage. I am talking about 20 liters per 100km now in winter...at summer ot was 16/100... what is weird also is that i had near same fuel consumption with m20b20 in it...
I am out of ideas really and i would like some advices...
What i have done so far is:
Check engine compression
New spark plugs ngk bkr6equp
New fuel filter, fuel pump
New cone air filter
New original front o2 sensors, rear are deleted
New thermostat
New summer and new winter tires, had the pressure right..
Didnt check injectors nor fuel pressure regulator
Mods so far
Homemade exhaust manifold, no cats.
I am in proces of getting complete e46 330i exhaust with rear o2 sensors as well, which i will be fittng to my e30
Currently i have m54b25 intake manifold, it was the same with original manifold... i had m54b30 manifold as well, same thing.
Cold air intake
I have 2 ecus, one i got with the engine i have no idea if it was remmaped or not, funny it had "m power" written on it... another ecu i bought from ebay, which stated remap to 207hp, but on dyno i have proof that atleast with mods i have, it had 195hp amd same power curve as previous ecu... then i went to remap it and the best the guy could achieve was 207hp... redline 7100
Performance wise its not bad, i went vs e46 330ci, rolling start 2nd gear, and i could overtake it... not all that great difference, 2nd and 3rd gear to limit and i am a car lenght ahead...
Idles fine, pulls fine... it consumes oil a bit tho... about 1l per 1500km
Any ideas?
Sorry for my long post... btw this forum has helped me a whole lot for the swap i did :)
Thank you so much!
I am out of ideas really and i would like some advices...
What i have done so far is:
Check engine compression
New spark plugs ngk bkr6equp
New fuel filter, fuel pump
New cone air filter
New original front o2 sensors, rear are deleted
New thermostat
New summer and new winter tires, had the pressure right..
Didnt check injectors nor fuel pressure regulator
Mods so far
Homemade exhaust manifold, no cats.
I am in proces of getting complete e46 330i exhaust with rear o2 sensors as well, which i will be fittng to my e30
Currently i have m54b25 intake manifold, it was the same with original manifold... i had m54b30 manifold as well, same thing.
Cold air intake
I have 2 ecus, one i got with the engine i have no idea if it was remmaped or not, funny it had "m power" written on it... another ecu i bought from ebay, which stated remap to 207hp, but on dyno i have proof that atleast with mods i have, it had 195hp amd same power curve as previous ecu... then i went to remap it and the best the guy could achieve was 207hp... redline 7100
Performance wise its not bad, i went vs e46 330ci, rolling start 2nd gear, and i could overtake it... not all that great difference, 2nd and 3rd gear to limit and i am a car lenght ahead...
Idles fine, pulls fine... it consumes oil a bit tho... about 1l per 1500km
Any ideas?
Sorry for my long post... btw this forum has helped me a whole lot for the swap i did :)
Thank you so much!
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