wankel88

iTrader: (7)

Ok first ill start w my setup, motor is half bridged single 35r running 850/1680cc injectors. Ok the car was tuned recently by a reputable tuner here, I've since put roughly 6k on new rebuild ive changed the oil every thousand miles, but I think this is starting to be a problem. I started using 10w40 thinking 1030 was too thin based of of reading things on here. I went to change my oil a few days back after putting 1200 miles on the new oil and it reeks of gas and its viscosity was as thin as water. Also when I would take my manifolds off there would be a high buildup of unburnt gas oil mix in the intake tracs. To me the motor never seemed to idle quite right doesn't have the brap all the times. When its cold after sitting over night and I go to start it I always have smoke blue n black can really smell a lot of gas. I'm positive my coolant seals r good and know its normal to have some smoke but it can be semi excessive on super food starts. I have to hold the throttle down a tiny bit for a few min till it warms up a lil then it will idle, if not car will struggle to run and eventually flood. When hot starting I typically have to blip the throttle after it fires to keep it running or it will fire and possible choke out it seems. I dunno if the problems are related. I dunno were to start but I'm assuming my injectors but at the same time I feel its something like a bad seal in the motor. Any help would be great thanks!

mono4lamar

iTrader: (32)

What's your A/F at idle? What's your compression? It's one of those two...

wankel88

iTrader: (7)

**cold, not food lol.

wankel88

iTrader: (7)

Don't have a wideband but its on the list ill be doing a compression test when the weather gets clear.

oo7arkman

iTrader: (2)

The wideband should be on the very top of your list.

Honestly it sounds like it is running far too rich at idle. Lots of fuel far back into the intake is just odd.. Are the vacuum lines off of the UIM installed correctly for your single conversion? Do you have a catch-can (you probably should) and how is it hooked up?

Blue smoke? You are burning oil. Do you premix? How much? If the catch can is hooked up wrong (or you blocked off both nipples on the oil filler neck) it could also cause this.

If the above items check out and you are premixing the correct amount (or using a properly working oil injection system) it is possible your side seal clearances are too large or the oil control rings are shot for some reason (incorrect install or worn out).

arghx

iTrader: (3)

Sounds like you have a lot of things going on. Frequent oil changes and fuel dilution are a fact of life on heavily modified turbo cars, but yours seems worse than one would expect.