boca928s

HI Guys, I am looking for a chip for my 1985 928, I have heard the best is by PORKEN..... maybe he is no longer in business? I cant find much info or website...

Thanks

Crumpler

davek9

AND... you will also need an S4 Fuel Pressure Regulator (FPR) to boost the pressure by ~10psi for the chips to properly work.
Ken's website spells it all out for you, they really will wake up the 5.0 as in 85 and 86 they were d-tuned due to lack of having Knock sensors.

Dave K

boca928s

thanks

boca928s

Having hard time with website liftbars.com I see nothing there about chips for the 92 just some bars to lift your car on floor jacks

Hilton

Look for the "S300s" link on the left side.

The Forgotten On

You should also look for the more modern style fast reacting temperature sensor in the air box. There are a few threads on it here.

It really wakes the car up as it now takes a second or two for it to react to temperature changes vs over 15 seconds of the original.

Speedtoys

^^I didnt know that.

DeWolf

Would you have a part number for a direct replacement?

The Forgotten On

Post #57 in this thread https://rennlist.com/forums/928-foru...-charts-4.html

It is part number Bosch 0280130085 and can be easily had for under $20. The intake just needs some light modifications in order for the sensor to fit.

davek9

As I recall Ken no longer makes the Chip(s) for the S4's and later, thought you were looking for chips for an '85?

merchauser

not sure if john speake wants to chime in here, but I a few months ago I bought a chip from him for my 1990 GT.
noticeable difference, and very happy! maybe he can help you?

DeWolf

Thanks Blake. Appreciate that. Just ordered one

Scott

Otto Mechanic

Hi Blake -

I read John's write up, he mentions the old sensor, which is threaded, needs to be removed, the threads drilled out, then the new sensor glued in, but doesn't mention the glue? I assume it's something that seals the sensor and isn't too tough to break loose should the sensor need replacement. Do you happen to know what adhesive is used here?

Thanks,

GregBBRD

Fantastic LH chip! Makes most of these cars idle and drive smoother and better than anything else I've programmed or tried.

And it allows/forces '85/'86 owners to swap to a 1988 threaded return style FPR and get rid of the "engine fire waiting to happen" rubber return line regulator. (I make a custom one piece return hose that eliminates the two hoses and that "adaptor on a bracket" mess (when changing the regulator to the threaded design.)

Some people use the matching EZF chip, but I've found that it provides too much ignition timing for most of these cars. I wish he would make a more conservative version, to compliment his LH chip.

I'd put them in every one of these cars!