vanster

Thanks Greg
The plug wires may have 5k as well as the plugs. However the vacuum lines are old, I assume original...no records from the PO.
and recently I bought a kit from 928 Motorsports which I have not installed.
Most of my driving is to and from LA either on 101 or 5. I think I made 6 trips this year.
It sounds like time to do an R/R on the intake.

vanster

Header pic

UncleMaz

Yup. You can get almost any AFM car to pass smog. If it is running rich, tighten the barn door spring one or two clicks. It helps if you have a smog station that will let you do a test run and dial it in while on the dyno/sniffer. I have done this/seen it done many times.

vanster

OK
Please explain the barn door spring. Sorry for being a bit dense on this one
Owning a 928 is like yoga, you are always a student....

Lizard928

Fresh spark plugs, leads, cap, rotor, and O2 sensor.

soltino

Great shot.

Was wondering if you have had any problems with the Smog Test because of the Headers, such as passing the visual inspection.

tino

GregBBRD

Interesting O2 sensor placement.

vanster

The smog shop I go in Berkeley has never looked under any of my cars
This will be my 3rd smog with this car, so far so good until now

fraggle

I wold reroute the o2 sensor wiring straight up through the shield. One day it will melt and short out. On 87+ that means the fuel pump fuse blows. Looks great otherwise!

1989porsche928

why don't you just run your car until it is almost empty then fill it 1/5 the way up with E85?

IcemanG17

There is a plastic cover on the side of the AFM, when you remove it it exposes the internal "wiper" assembly. How fast the "barn door" opens is determined by the spring tension on the wiper, it is adjusted in "clicks"....you can adjust it on the car put need a REALLY long screwdriver and the AFM must be turned in a certain direction to work (down is not good)

I did this on my L jet estate and Seans Euro racer...works pretty well

Speedtoys

*boom*

Not good.

1989porsche928

Their is no boom with e85. It burns cleaner

Speedtoys

Where is he gonna invent the 20-25% extra fuel he will need to not run horribly lean?

Pure E85 is about 33% short of a proper mix.

Gunmetal

Aha the joys of living in Australia, no smog checks! I ripped off my cats, got it running straight through 2 resonators and a centre muffler then blasts out the back.