M20: New Head/30# Injectors: Won't start

[RLTW86]

'Evening Gents,

My first e30: 1990 325is that I'm building up to put on a turbo. I'm pretty new to fuel injection so any and all constructive advice is welcome.

Having trouble getting it to start after tearing it apart. Here is a list of the relevant things that I've done to it.

All new engine seals top and bottom.
Cometic .098" MLS head gasket. ARP head studs
New water pump/thermostat/timing belt/tensioner.
8mm plug wires
30# high impedence injectors from VAC
Myster-E/Bimmerheads ported and polished head with their "turbo" cam.
New O2 sensor
New spark plugs

Everything else related to spark/fuel/air is stock for right now. The car was running on a knock-off Dinan chip that I replaced with a stock one.

When I turn it over it begins to start and has a rough idle for about 4 seconds and then cuts out. When I continue to crank it, it just floods. All the plugs are getting good spark, and all the injectors are firing.

I have a few ideas on what the issue could be, but figured I'd ask some guys that have waaay more experience with these cars than I do first.


Thanks in advance!

[dnguyen1963]

30 lb injectors? No wonder your engine is flooded with fuel. Anything above 19 lb requires proper chip and tuning for the engine to run right.

[RLTW86]

Thanks,


That's what I was figuring. I was just hoping that it would at least run long enough to get it over to my buddy's shop so they could tune it. Looks like I may have to throw the old ones back in first...

[MR 325]

Yeah it's not going to run those injectors on a stock computer.

Until it's boosted I'd recommend putting some M50 injectors in there.