91' 318is S52 Swap "The Beast"

[craiggroves91]

No I am running the M50 fuel rail myself.

You are certain the fuel lines are running the right way? They could be backwards, and the FPR could be bad, but that is an unlikely coincidence.

I would personally start tackling things one at a time. Check for major intake leaks, then for spark really quickly, then check fuel.

You give us a better idea of what happens when you try to start it? Does it simply crank and crank? Does it catch occassionally like it might start but then doesnt? Nothing at all?

Return should be on the FPR side right? Feed on the front of the rail.
Top line on e30 frame rail return and 2nd line feed. Pretty sure its right since it ran last night.

Did you see the video?

sometimes it will crackle and pop like it might fire, but then dies
I tested spark, only on the first plug though and it was there.

I've looked around for intake leaks and it looks good ill double check

[craiggroves91]

So I've got it running again, but its been tough to start.

then it sounds like its only firing on some cylinders. Occasionally it will go crazy on start up and want to go all the way to redline.
Much worse then when it first started

[cmeptb13]

I'm not an expert by any means but I'd definitely drain the gasoline that's been sitting in the gas tank for months and fill it up with fresh stuff before firing it up. Once again this is a shot in the dark but stale gas can form sediments and hypothetically clog up the fuel system. Personally I'd refresh the gas and the fuel filter before starting it up. But don't quote me on that.

[Evil-E]

You should get your MAF sorted out first and make sure it's not that first. Usually they will run w/o a MAF plugged in and use a default setting but won't run well. A vacuum leak would run bad at idle but would smooth out if you had it revved up. If you had access to a fuel pressure gauge you could rule that out. Smoke machine for vacuum leaks.
Good luck man!

[craiggroves91]

I'm not an expert by any means but I'd definitely drain the gasoline that's been sitting in the gas tank for months and fill it up with fresh stuff before firing it up. Once again this is a shot in the dark but stale gas can form sediments and hypothetically clog up the fuel system. Personally I'd refresh the gas and the fuel filter before starting it up. But don't quote me on that.

you know that might be a good idea, just to rule it out

It was sitting for a long time

[craiggroves91]

You should get your MAF sorted out first and make sure it's not that first. Usually they will run w/o a MAF plugged in and use a default setting but won't run well. A vacuum leak would run bad at idle but would smooth out if you had it revved up. If you had access to a fuel pressure gauge you could rule that out. Smoke machine for vacuum leaks.
Good luck man!

We tried the s50 MAF (which for some reason plugs right in) and it had no affect

[craiggroves91]

WOOOOOOOHOOOO! :)

[mtlbloodshot]

Congrads.. I hope to hear my M52 soon

[craiggroves91]

Congrads.. I hope to hear my M52 soon

Thanks!

You'll get there soon!

[FunfGan]

Awesome! Congrats on startup

[Brilliantrot 318is]

Congrats! Sounds like a monster! What exhaust you plan to use?

[craiggroves91]

Awesome! Congrats on startup

Thanks! It's been a big relief

Congrats! Sounds like a monster! What exhaust you plan to use?

Thank you :)
You know I'm not sure yet. Its going to be quite aggressive.
Thinking maybe just one high flow cat and a muffler.
Maybe not cats and just a resonator and muffler?
I don't know, I was going to start looking into common setups more

[Brilliantrot 318is]

Thank you :)
You know I'm not sure yet. Its going to be quite aggressive.
Thinking maybe just one high flow cat and a muffler.
Maybe not cats and just a resonator and muffler?
I don't know, I was going to start looking into common setups more

Keep us posted :), just make sure you can pass emissions.. I've heard to many stories, lol

[mtlbloodshot]

What did you end up doing with your throttle cable?

[craiggroves91]

What did you end up doing with your throttle cable?

Its routed pretty odd I was hoping to try to find a better way. I'm most likely going to put the mount for it on to stop play in it.