I recently build tha motor to my rx7 and when I get it in the car and try to start it up its backsfire and take too long to start and when it does it the motor shake like hell please any help that I can get its aprecciate because I invest too much money in the motor and I dont know what it can be thx

 

hmmmmm...
Did you check your sparks. coil packs, igniter, fuel pump, injectors? basically anything got to do with starting up the engine.

 

check your ignition timing
post a video

 

Sounds like it's running on one rotor.

 

Definitely sounds like one rotor.

 

thx for the help if it was that only one rotor is running what i have to do to repair it?

 

diagnose why it's it's not firing on both rotors then repair said dilema

 

+1


:d

 

Step 1 is to check your compression.

The other steps all depend on the results of that test. It sounds like you have low compression.

 

do the trans fluid in the engine treatment but with mmo. turn it over by hand every few hours. let sit over night. take all plugs out and the fuse for the fuel injection and crank the car over till most the mmo gets out then put new plugs in and start it up. my car sat for about 4 months and that happend. did this...now i daily it. 80psi all faces

 

Isn't 80psi considered very low?