MazdaSpeedRX7707

I just put in a new rx7world motor it is a stage 2 motor mild street port. I just installed it into the car and it seems to fire about 85% of the time, and the other 15% it won't start until you pinch off the fuel line to the motor. I have brand new injectors and all the sensors were checked and replaced numerous times. The car runs and sounds great but i seem to be getting to much fuel and it also died once while shifting from reverse to drive. I have no cat and no pre cats i have a racing beat header straight piped to my exhaust. Any ideas will help thanks

RETed

Rx7World doesn't have the best reputation on here.

Do a compression test?

You're talking about a fresh rebuild, right?
It's not uncommon to go through what you're going through, although I suspect the motor isn't built well.


-Ted

MazdaSpeedRX7707

Why do you say that is it common? The fuses were checked and passed but is it possible the sensors could be checking out but not working or could it possibly be my computer?

RETed

If the car run fine prior to swapping the engine, then I doubt it's anything else but the engine?
Unless the car has been sitting around for months?

A poorly built engine with large clearances is a bitch to get started.


-Ted

MazdaSpeedRX7707

it has been sitting for 1 year with the blown motor in it and the blown motor had a prior problem of flooding so i knew i was going to have a problem when i put my new motor in i just can't find out what and me and my mechanic have been up for a week stressing on this

MazdaSpeedRX7707

the builder said the clearances were all set for maximum engine life