Jean

I am interested in a group buy, heck why not

Would need 6 EGT and 2 IAT sensors + obviously AFR and boost, dash display etc..
If it ever materializes count me in please.
Thanks.

Black_Hat

Done ...at least with boost ..
The black with green stripe wire under the drivers seat is the one .
I mounted the boost sensor under the drivers seat as well in a rubber insulated clamp
the controller is under the seat towards the back with a home made clamp with foam rubber insulation
I can access all wire ports by moving the seat forward .
I ran the boost line through the same hole under the passenger rear that the wiring harness goes through.
I have the black LCD display and it wedges nicely under the dash on top of the center console ..and can be moved or removed really easy ( without making holes ) . ......it is also quite snug and will not bump loose ( rough Austin streets/Ruff suspension -3 inches )

What I have noticed so far ...
Boost spike ( stock spring ) I have the boost feed off the inter cooler ..I need to move the feed after the TB .
How do you run a muffler and allow 16 inches for the wideband O2 .I'm thinking a test pipe(cat delete)
with a muffler in the stock location .Currently I have a massive Cat right off the Turbo no muffler and I pass Austins new tough smog ...with my air pump belt Off .I would really like a permanent O2 with a cat

Stefan

stu.p

stefan:
I hooked up my boost sensor with a tee piece to the pipe that goes from the ez69 box to the inlet manifold
The ez69 box is on the inside left of your engine bay looking in and has two large round plugs on it!
i have seen the o2 sensor welded in one of the bends after your cat going into the rear muffler

stu.p

Below is my response i got from Zeitronix when asked them about sensor calibration,,when you first switch on the ignition to power it up it has "sensor warm up" on the display,which lasts for approx 30 seconds,,this must be it then checking itself for calibration!!

The Zeitronix Zt-2 Wideband AFR Meter and Datalogging system has a self
calibrating routine and does not require frequent user calibration and O2
sensor removal from the exhaust. Most widebands on the market do not require
user calibration. Bosch LSU wideband O2 sensor is used in Porches and VWs
among other cars and you do not see them going to the dealer to manual
calibrate the O2 sensor.

Wit the ignition off there is enough oxygen in the exhaust to make the
mixture read "lean" so the AFR is displayed as maximum lean 21.0. Start the
engine and is will all change.

Thank you and happy new year!
Zeitronix

nathanUK '81 930 G50

I'm no expert but I wouldn't trust that with my £#K+ engine as it is clearly not calibrated.

I don't mean to be so negative but look what happened to JBL930.

stu.p

Lets face it,,, all these gadgets saying they calibrate themselves or not,whatever afr gauge we have??,whos to say they are performing this calibration operation correctly anyway??.
Just for peice of mind i will be verifying anything i have against a second peice of equipment if not 100% sure then i will be able to sleep better at night!. i have spent numerous hours rebuilding mine with the best of stuff and at the time i says to myself "i will not be doing this again"
Monitoring your engines performance is probably the most sensible thing you can do in our air cooled turbo Porsche engines so whatever good afr set up you buy ,,verify its readings to save any sleepless nights...Put the foot down and enjoy!!

biglicks

sounds like a sensible idea stu, re monitoring and 2nd opinion verification.

Don't give up on the idea of rebuilds I may have need of your services one day!!

Steve

ibkevin

Try posting this over in the 951 forum.