strange turbo issues

[sr28]

hey guys, any help would be greatly appreciated.

I'm having some strange issues with my sr20 red top

My car is boosting fine, but the feeling i get is like the engine cant keep up with the turbo. i boost to .55hkpa or 7lbs and the car feels like its being held back.. bog sometimes.. RPMs climb slow if I floor it.

If i teather foot and increase boost along with the rpms at the same rate, the car flies the way it should. If im on the highway there is no issues with boost or the issue is very small and unnoticable.

If I try to push some power in low gears the boost is all there i hear the turbo spooling, i sound like a freakin seriously suped up car, meanwhile im going like 15 mph...

This problem is periodic and happens from time to time. sometimes the car will run with no faults for a month, then it will run like this for a month.. REALLY strange.. i think something is getting knocked around..

sr20det red topwalbro fuel pumpgreddy fmic1990 240sx chassishks intake.. the motor is basically stock.. HELP!!

[sr28]

im also running lean from what my spark plugs are telling me.. i smell some raunchy butane smell when the car isnt running right.. probably because the a/f is out of wack. fuel economy =

[sr28]

do i need like street cred to post on this site or somethin.. someone help!! i'll put an avatar!!!

[IanS]

This section of the forum doesnt see much traffic during the weekend. As far as your problem goes, I would say start with the basics.

What spark plugs do you have, and what are they gapped to?

Are you throwing any ECU codes?

Do you have any boost/vacuum leaks?

What is the electrical timing set to?

Is the cam timing set properly?

Are your coil packs bolted down properly, and free of cracks?

You should find something by checking all of those things, I'm pretty sure your problem lies down one of these paths.

[sr28]

What spark plugs do you have, and what are they gapped to?

ngk .036mm

Are you throwing any ECU codes?

no

Do you have any boost/vacuum leaks?

no soap and water all around, turbo doesnt spike.. just boosts steady and stays..

What is the electrical timing set to?

no idea how do i check

Is the cam timing set properly?

not sure

Are your coil packs bolted down properly, and free of cracks?

yes :P

so i need to check out the cam timing and electrical timing huh? i'll get back to u to give u results ty !

[inkslingers13]

shaft play in the turbo? that could be a problem... just throwing it out there