Okay so I just had the engine on my 87 turboII rebuilt.

The car has
Walbro 255
3in exhaust no cats
Streetport
4 550 cc injectors cleaned and flow tested
Omp block off now premixing
New NGK plugs and plug wires.

Anyways, the car keeps flooding. I have a fuel pump cut off switch but it only gets the car started occasionally. Like it's only been started twice in a week. Pulled the plugs and they smell like gas... Is this injectors?

I've searched and I can't seem to find a solid answer. Any help is greatly appreciated.

 

New motors are flood prone until they break in, common knowledge. Who built the motor? Maybe they didn't go very tight on the side seal clearances.

Also don't you dare boost that motor with those injectors after its broken in.

 

Andy at racefab in abq new Mexico. He's got a couple of rotary cars over there and I'm confident with the build. And injectors are in the works once I can get my hands on a computer. I've got a wideband so if it does run, I'll watch and make sure I don't lean out

 

is the car in vegas or NM? i think i remember something you posted about this car a little while back but not going to dig for it.

you can try the pin 3C trick since new engine and walbro = flood prone.

 

The car is actually in las Vegas new mexico haha. Yeah you most likely saw the thread about the Rusto paint job on my na. This is my other car. And what is the pin 3C trick? Thanks!

 

ah ok, honestly didn't know there was another vegas. heh

just pull pin 3C from the ECU connector, then the car will not be using the predetermined amount of fuel during cranking and may start more reliably.

 

isnt pin 3c the secondary injector on a S4 TII????

edit

its pin 3b

 

Are the plugs visibly wet?

 

thanks for clarifying, i could have sworn it was 3C but just was going off memory of reading what other people have done for flooding issue fixes.

 

Not really, they just have the smell. And if you swap different plugs, the car will start until you turn it off. then it floods and the plugs smell like gas again.

 

so swap the plugs, and let it idle for an hour. then go drive it around the block a few times. let the engine break in a bit before turning it off

 

yeah evem on my "mazda factory reman" motor it flooded every time it was turned off. just gotta put miles on it untill the compression builds.

 

Okay I'll do that. Thanks a lot guys. And also when the car does drive it won't rev past 2500 rpm. It stumbles and backfires. any ideas? grounds?

 

sounds like faulty injector wiring or extremely retarded ignition timing.

 

make sure your crank angle sensor was stabbed right. then i would check the grounds..

http://www.aaroncake.net/rx-7/grounding.htm