something wrong with the laser rs turbo

[awall811]

there seems to be somthing wrong with my laser rs turbo. it bogs in a out once in a while in lower rpms and also bogs at about 10lbs of boost on 0-9psi runs perfect... anyone have any idea on what could be the problem here?

 

[SexperT]

Do a boost leak test.

 

[awall811]

im somewhat stupid how do you do that?

 

[Bruno96]

you might be pulling timing due to leaning out i would get a logger and see what it says but also just like sexpert sayed do a boost leak test but also check to make sure your antifreeze is still good because if the antifreeze has broken down the motor will run hotter causing your ecu to pull timing, i had a similer problem whenever i would go above 15psi the car would feel sluggish and it turned out that i needed larger injectors.

 

[King Salami]

I would suggest that you check your base timing also. Your CAS or mechanical timing may be have slipped (causing part-throttle knock).
If you plan on wrenching on your car, get a Haynes or other shop manual. Besides a Pocketlogger, it's the smartest $ you can spend on your DSM!

 

[RSTurboFWD90]

im somewhat stupid how do you do that?

You could search this forum and find the details of the boost leak test. Here's one...
http://www.dsmtuners.com/forums/showthread.php?t=169435

 

[Larry L]

I would suggest that you check your base timing also. Your CAS or mechanical timing may be have slipped (causing part-throttle knock).
If you plan on wrenching on your car, get a Haynes or other shop manual. Besides a Pocketlogger, it's the smartest $ you can spend on your DSM!

Aside of the belt actually slipping how can the mechanical timing slip?

 

[King Salami]

I was talking about the belt slipping a tooth or two.
I had a bad tensioner that caused the belt to slip a couple teeth at the crank pulley.

 

[awall811]

it jerks a bit when not boosting or at like 1psi and runs perfect from 2-9psi so idk wtf