tv

Don't listen to that and create another mongrel. Snowglobe you have a loooooooooong way to go before you should worry about messing with the brains. Get the car running right and tight first. That will probably mean thousands and many new parts in many different areas.

When everything is working perfectly, then decide if you want to go messing with the brains. According to a post by J Speake that I remember, the 84 euro brain is NOT flashable, but the 85 euro brain IS with the sharktuner II. That's kinda like advanced calculus. And yes the kickdown switch is a feature for auto's only.




Mr Speake's own words ------ We are pleased to introduce our latest product in the SharkTuner series – the NEW SharkTuner 1.

This unit is a repackaging of the original SharkTuner and the Auxiliary input board that enables SharkTuning of the 85/86 US and Euro 928s. It is now contained within a box measuring 6” x 5” x 1.5” (15x 13 x 4 cm). It will monitor, data log and remap the early 32 valve Porsche 928 (MY 1985/6) which use LH ECUs 928.618.123.03/04 & /05. and the EZ-F ECU 928.618.124.05
Also the Euro 16v LH for MY 84/86 which use 928.618.123.02. But NOT the LH fitted to MY 84 Euro 928.618.123.00. It will remap all versions of the EZ-F ignition ECU fitted to Euro 16v 84-86 type 928.618.124.00 /03 & /CX.

John Speake

The 84 LH ECU is quite different in clock speed and software than the 85/86 cars. But the '84 EZ-F is OK for the SharkTuner.

You should be able to pick up a later LH ECU 928.618.123.02 at a reasonable price. Or I can supply one.

You need to get the car running as well as it did originally, the MAF is the favourite performance killer on a Euro.

Almost certainly needs checking and replacing if necessary. Then you need to see how someone Federaised it. They may have fitted a 32v US 85/86 LH ECU 928.618.123.03/04 or 05 which has the provision for an O2 loop so they could fit cats. If sio the fuel maps will be incorrect for the Euro. This can be fixed easily.

danglerb

(typed before seeing John's post)

I agree, stick with the Euro brain until you have an issue worth migrating from it.

I don't agree with the mongrel part, chances are it has some smog related mongrel federalizing in it right now. OTOH I have the 85 Euro brain my car used to use I should think about selling.

Snowglobe

Memorial Day Weekend update

Thank you for the info/replies since my last posting.

As some of you may already know, many of the San Jose (SanFran SouthBay) area Porsche specialists take the weekend off ... so my taking it in for a weekend checkout didnt pan out. I've been busy with work and family flu bouts so havent made a weekday trip either.

I have been reading this forum extensively, though, and made a shopping list. I'm considering forgoing a paid inspection and instead doing everything myself. Crazy?

Shopping list items:
1) buy Jim Morehouse CDs.

-> inspect/change fluids, sparks, etc
-> inspect inspect inspect

The PO claimed to have changed all fluids. I'm thinking, since it sat ten years before that, the new fluids could dirty quickly and would benefit from early replacement.

2) Send MAF for refurb and calibration.

3) dual electric puller fans on radiator (+pusher delete), ie
http://www.928motorsports.com/parts/...diator_fan.php
or
http://www.v12s.com/ ->Twin Electric Cooling Fan System II in Aluminum Alloy Shroud for Porsche 928

The front electric fan sounds like an overworked weed wacker, and since the standard fan isnt enough to keep things cool alone, I'd prefer an upgrade.


4) non-OEM crankcase vent system -> SharkVent
MAF will last longer?

4) 7x16 Phone Dial Wheels from 928 International
I think the "puckered" 928 phone dials are very unique and suit the car.

5) porkensioner + "racing" TB

6) liftbars

7) pklamp?

8) AGM-style battery, ie Sears Diehard Platinum
Among other advantages versus a standard battery, I'm thinking it should help reduce electrical gremlins since the terminals won't naturally corrode.
Size 34?

8.1) + non-OEM alternator and starter?

9+ air pump? water pump?

Snowglobe

9++ fuel lines?

John Speake

My US agent Louie Ott in OR will flow test your MAF to see if it requires replacement.

http://www.performance928.com/cgi-bi...&pass_parent=0

linderpat

Not at all - this is the best way to learn the car. It will fight you at every turn, but persevere and you'll succeed.

Tampa 928s

My 85 euro ran like crap when I first bought it, looked like crap also.

The basics are complete tune up, injector rebuild and Maf rebuild. The Bowden cable adjustment made a Hugh difference to the low end power feel. I have mine adjusted so it holds the gears longer and if you want to shift it earlier just back off a hair on the accelerator. I would not waist any money on mods the car runs great if you pay attention to replacing everything that flows, fires or measures. I installed an override switch on the kick down switch when at a light and switch is turned on car floored it red lines in every gear. This is like have a manual with out the clutch "not for constant use but fun when required"

Hilton

Hold off the modifications like electric fans until its running right.

3, 4 and 8.1 should all be low priority - the original stuff is very solid and works just as designed. Stuff like changing the front fans sounds easy, but quickly escalates into further wiring mods, new alternator etc., when a re-lube or just replacement of the mechanical fan would have has the same outcome, and been cheaper and easier.

Not to say don't modify a 928 - au contraire. However, its better to get it running right then choose the mods you want.

On an 84 euro, exhaust is the best place to start.. get some 85/86 stainless manifolds to replace the euro ones, and an x-pipe with cats to replace the federalized crap.

But per Tampa's comment above.. tune up and fix the basics first Very nice looking car btw.. spoilerless Euro 928S are very cool!

Landseer

I change the CPS on the Euro and 32V cars pre-emptively.

Also, the little bitty timing belt that drives the slave distributor, along with (necessary) new washers (roger can decipher)

Snowglobe

Thanks for the leads. I ordered the PET CDs.

Nicole

If you are in the San Jose area, you may also try Marvin Weitz at TheRennShop in Santa Clara. He is factory trained and very thorough.

Tell him I sent you!

SQLGuy

Just to add to what others have said, the front pusher fan is actually a pretty good fan. It's there mainly for cooling after shutdown and to aid cooling with the A/C on. On my 85 these fans did a fine job of keeping the needle where it should be. It's not uncommon, though, to lose silicone fluid from the main fan's clutch, which causes it to become pretty ineffective. Some folks have had luck refilling it with Toyota silicone... otherwise, replacement Behr units are ridiculously expensive.

danglerb

Skip the fans for now, do have a knowledgeable 928 pro look it over, doesn't need to be a full PPI you can do all sorts of simple stuff, but somebody that knows the cars well can pick up issues you might not notice for months and $$$. Once you get into the car and start driving you really won't need to pick things out of a hat to spend money on it.

Decide how and where you plan to work on it, and if that includes jack stands get the liftbars.

Snowglobe

Update: I took it to CJ Automotive in Campbell for an inspection. Fuel pump died during inspection (a warning light came on during the drive over). The federalization involved adding oxygen sensors ahead of the cat and crudely patching in a Neutronics Lambda computer; so, the brains are already hacked. The tech is a 928 owner and seemed knowledgeable but was telling me the MAF is a box with a lever and a pot, whereas I thought this has a hot wire sensor MAF; he hasn't gotten to it yet, though. The distributor wires have nibble marks. The timing belt looks OK.