bogging under boost

GnArKiLl · 01-31-2008

it started a few days ago when i get in the gas it will go just fine till it gets into boost then will just bog out.. i have tryed a few things but could use some help.. what should i check?

clean2g · 02-01-2008

Well first off, what are your mods, car, etc??

**Halon** · 02-01-2008

Ya, need more info on the car, and the "few things" you've already tried.

I'd check your plugs/wires first.

Kevin 1G Drummer · 02-01-2008

Mod info would be nice. Just a couple things to check would be plugs/wires, and do a boost leak test.

GnArKiLl · 02-02-2008

will its an awd auto 14b, free mod done, mbc set to 14psi, mostly still stock... the car will run just fine untill it gets to about 2psi then bogs out but still builds boost just fine.. it just feels like its just not putting the power to the wheels.. i was thinking it might be the torque converter but the tranny still shifts just fine.

sleepy2lazy · 02-02-2008

check plugs, wires as said earlier.
Also check spark plugs as it maybe goin bad as well.

GnArKiLl · 02-03-2008

well the plugs and wires and brand new and didnt to the trick..

**Halon** · 02-03-2008

what did you gap the plugs to? Can you maybe explain more of what you mean by bogging? Is the car actually braking up and sounding like it's misfiring? Or does everything sound ok but it's just moving very slow? Do you have a logger or anyway to monitor your knock or timing retard?

GnArKiLl · 02-03-2008

plugs are at .30.. it doesnt sound like its brakeing up it just wont pick up speed when your in boost.. and i dont have a logger or anyway to monitor anything

**JET** · 02-03-2008

.030" gap is borderline. I would do a boost leak test right away, it is probably running rich under boost because of a leak.

**Halon** · 02-03-2008

You really should look into getting some sort of logger. If you're knocking real bad, and pulling a bunch of timing, then that could be why you are losing all that power. Then you just need to figure out why.

Like Jet said, boost leak could be a big one. Also have you ever checked what your ignition timing is at?

GnArKiLl · 02-03-2008

we are goin to check the ignition timing today.. but the car doesnt bog as bad if i slowly get on the gas so i was thinkin boost leak

GnArKiLl · 02-04-2008

also if i get on and off the gas it will go away more and more each time

**Halon** · 02-04-2008

Go do a boost leak test, and check ignition timing. Then report back.

GnArKiLl · 02-04-2008

ok well no boost leaks.. and timing is good.. but i did pull the intercooler and it had some oil in it so i swaped intercoolers. after checking a few things it had gotten alittle better but its still not gone.

**Halon** · 02-04-2008

What was the ignition timing at? Did you make sure and ground the timing plug when you checked it?

GnArKiLl · 02-04-2008

ok well after putting bigger exhaust on it the problem seems to have gone away. but ill know more by tomorrow

**Halon** · 02-05-2008

Quote:

Originally Posted by Halon

What was the ignition timing at? Did you make sure and ground the timing plug when you checked it?

Bueler?