tooter's next manifold adventure...

[ezhacker1]

I was able to install the spacer and keep the heat shield on the AFE intake.

Did an initial test 6 mile test run city/hwy after ECU reset just to make sure car runs fine.

1. Idle warmed up RPM is lowered ~25rpm from 620 to 595.
2. Blipping the throttle is sensitive, like having the throttle controller on.
3. Letting the engine lug the car forward is much stronger. Sure the car is shaking but works stronger on my slight inclined driveway.
4. Although idle RPM is lowered, fuel consumption/hour hasn't changed, still 0.125/HR

Manual Transmission
Related Mods: AFE Intake, DC Sports axle back

[tooter]

Originally Posted by ezhacker1

3. Letting the engine lug the car forward is much stronger. Sure the car is shaking but works stronger on my slight inclined driveway.

I call that the "tractor effect". If you've ever driven a tractor, the engine does exactly the same thing... the high torque low rpm engines vibrate harmonically as they pull because the time between each power stroke is so long. We have a steep driveway that I measured with an inclinometer at 10%. I have fun going up it in my truck at below idle 500rpm. It just vibrates right up the hill like a tractor without lugging or bucking.

This is one of the strange attributes of the intake manifold spacer that doesn't show up on the dyno runs because it's "below the radar".

Off idle partial throttle performance is superb. If you have a manual transmission there's less clutch slipping needed just to get the car moving.

Greg