My friend just bought a 2000 Em1 Si with a Gsr swap. the car doesnt feel it up to par. the cars acceleration feels very laggy. We changed the plugs.. wires and oil. It feels nothing like a gsr. when you floor it.. it just feels like something is holding it back.. any ideas?

 

did u check the ignition timing???? and what kinda headers and exhaust piping is on the car? is it stock? does it have a cat?

 

nopee. and it has a victor x intake mani.. and type r header with 2.5 in piping

 

that victor x is the problem if its a stock gsr...victor x with a stock throttle body??

 

Check the cap, rotor, and ignition timing.

 

ya . its too big huh?

 

bump

 

ignition timing????

 

and yes its to big for a stock motor and its proable got a bigger throttle body...that manifold and throttle body are for a motor that has work done to it and thats tuned....things like that have to be tuned ,jus slaping it on is jus going to make it look good but go no where.....

 

thanks for the info guys. im going to tell him to get the stock intake mani.. how much can i sell a victor x for on the streets? im going to tell him to pick up a ITR intake mani

 

bump

 

idk how much...

 

hmm alright. thanks anyways