kphout

hey i got a question, my car seems to bog until 2,500rpm when my chipped ecu is in but when my stock ecu is in it runs fine..... any suggestions??

StanB

What is your setup?

kphout

390cc injectors, t25 turbo, intercooled, 4psi saab bov ssac mani. flywheel clutch

Jorsher

Hm damn, I was hoping you have that problem with your stock one. For over two years my stock car will randomly bog through acceleration and I've replace wires, plugs, ignition coil, dizzy cap/rotor, fuel filter, etc...there's no "pattern" to it, just does it when it pleases while I accelerate and it's annoying as hell.

Maybe it's your map?

kphout

thats what im thinkin it is i think i might go "borrow" one from the junk yard.

kphout

with the stock ecu my lil bro took out my car and still beat a impreza 2.5rs pushin 10psi..... just got back from cruzin

StanB

I would look at two things on the BIN:

1. Fuel supply - more fuel needed within the rpm range that it boggs
2. Ignition timimg

If you haven't tuned it yet, you should do so now.

My 2 cents.

kphout

i was thinkin that i was getting to much fuel, because with the chipped ecu i get alot of smoke coming from my exhaust....

StanB

Mine would bogg sometimes but higher up in the RPM. When I add more fuel the bogging stops but I get a little back fire (popping in the exhaust) when cruising which is the result of a little too much fuel.

You can remove some fuel and see what happens. If that does not solve the problem, add some fuel.

kphout

how would i remove fuel?? i was thinkin about using my stock injectors again