Re: WG control (was fooling compooter and other things)

[orin@netcom.com (Orin Eman)]

> i can be either extremely dangerous or completely ineffective with a
> soldering iron in my hands.  i will trust myself with electrical power
> connections.  if there is an analog or digital signal involved, i defer
> to someone else.  like i said before, just not an accessible mod for most
> of us.

Unfortunately true.  My point is that if you can do it, it is the best
way to increase the fuel pump cutoff boost.

 oh, btw, assuming i have $23 worth of EPROM, socket, iron and solder
> in my sweaty hands, how much am i going to spend on that device to burn the
> EPROM?  and how much time will it take to decode the program, locate the maps,
> test new values, etc, etc?  and of course nothing will blow up while i'm
> doing all of this, right?  that's why people send $$$$ to ned.

Exactly.  Now where would you get that EPROM programmed?  Well, I just
happen to have a programmer as do quite a few people on the list.
Also, information as to where the maps are in the EPROM is well known
to the same people.  I could post the information, but it would be
a waste of bandwidth.  However, I'm happy to share what I know with
anyone who asks.

> i should also point out once again that that no pre-MC motors (which include
> my app as well as all US-market urq's and other US-market pre-86 turbos)
> have computer control of the wastegate.

True.  A pressure regulator is a good method of increasing the boost
in this case, though I would prefer a spring.  Some one mentioned
manufacturing some since Charlie Smith isn't around at the moment.
Price should be less than $20 each if you aren't out to make a big profit.

> please don't take this as a flame, orin.  i'm really happy to see one of us
> "non-professional tuners" doing this type of development.

No problem.  My number one recommendation is still 'Go to Ned' - he
has the equipment to do the computer mods and replace that pesky EPROM
safely.  However, for those on low budgets who are prepared to unsolder
their EPROM, I can program an EPROM with the fuel pump cutoff set to 1.95 bar.

BTW for anyone interested in programming their own EPROMS:
My EPROM programmer came from JDR and the current cost is less than
$140.  I have seen parallel port programmers for $120.
Of course, you would probably want an EPROM eraser too... another $50 or so.
It still ain't bad if you have the knowlege to do this kind of development.

Orin.