"Bogging" in first gear
 

Wondering if anyone else has experienced this. When I am taking off in 1st gear, the car seems to "bog" until the revs come up. This is with moderate to heavy throttle, I am not babying the car. It seems to have started after the CBE was installed. The feeling is the same as from my old muscle car days when the car ran too lean off the line.

I'm wondering if the ECU just needs to relearn with the new exhaust? I've tried to drive the car more aggressively to help it...if this is the case, how long before the ECU catches up with the mod?

All I know is, I will not be engaging in any stoplight action now...the car won't get off the line to save itself now...

All other behaviors, idle, driveability etc are normal. All I have now is this "hole" in first gear...

first was already a crummy gear in our cars. the loss in back pressure can give it a boggy feeling down low in the RPM's but nothing really that bad.

im sure youve tried just reving higher to negate the bogging, no?

Yes, even with a healthy dose of throttle...it just feels like a huge dead spot in the power until it "catches".

try resetting the ecu and see if it relearns and compensates any better. it probably won't, but it's the easy first step before getting more into troubleshooting.

Yeah...going to try this tonight...

By any chance were you low on gas? I had the same thing but it only happens when I'm low on gas. I'm assuming it's because the car is alot lighter without gas so the clutch engages alot faster.

Nope. Full tank

Is your VDC on or off?

VDC on. Dry conditions...

Turn it off! I launch at 3000 rpm or so in my 6-sp. Never bogged yet. Dual 100' strips of rubber no problem with a stock Z.

Yeah, i would try turning vdc off. Be careful though.

Ive had the same issue lately, it seems to start before installing my 1st mod. I was thinking it would help the issue. Some say a exhaust or tune will fix issue. I want to hear from someone that has had issue and is not resolved.

Its not due to the VDC...its an actual hole in the power delivery, the engine actually bogs down, then catches, even if I'm giving a lot of throttle input. It feels like the car is running too lean...

I know exactly what you are talking about bushman. I notice the same problem at lower RPMs. Specifically in 1st, 2nd, or 3rd gear. I'm actually getting a Uprev tune tomorrow so I'll report back to this thread on whether it helps or not.

^ sub'd