datsun-roadsters
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Re: Roadster EFI

To: James Uhl <jamesuhl@mediaone.net>
Subject: Re: Roadster EFI
From: Thomas in Sweden <csp311@telia.com>
Date: Sat, 31 Mar 2001 01:59:08 +0200
I have a friend wo installed a Bosch K-jetronic (mechanical
fuel injection) in his 260Z. We all said it was impossible
but he installed it, turned the key and it all worked. This
was 17 years ago and the car is still running.

Thomas

James Uhl wrote:

> Maybe....
> Just remember.... they told Columbus the Earth was flat.
>
> Your eternal optimist,
> James
>
> ----- Original Message -----
> From: "datsunmike" <datsunmike@nyc.rr.com>
> To: "James L Uhl" <jamesuhl@mediaone.net>; "Daniel Neuman"
> <dneuman@hodge.sfsu.edu>
> Cc: <datsun-roadsters@autox.team.net>
> Sent: Friday, March 30, 2001 4:23 PM
> Subject: Re: Roadster EFI
>
> > IMHO it would be cheaper and easier to put a modern engine in the Roadster
> > than to design an EFI for the U20. After looking at the TWM site and
> > listening to all of you it's gonna cost 3K+ when all is said and done. And
> > while there will be increased driveability and some power gains the Q is
> > this: Is it really worth all the effort and time and $$$$$? And what
> happens
> > if it doesn't work well, which is a possibility especially if you have to
> do
> > all the programming work. I know someone that had a programmable ECU on
> > their Miata because it was cool and his car ran worse than before. He also
> > didn't program it right and it was way lean and almost melted his engine.
> He
> > did damage it.
> >
> > At TWM they say it'll cost 2600 w/o an ECU or the wiring or plumbing and
> > that is providing you have a Solex manifold.
> >
> > IMHO,
> > Mike
> >
> > ----- Original Message -----
> > From: "James L Uhl" <jamesuhl@mediaone.net>
> > To: "Daniel Neuman" <dneuman@hodge.sfsu.edu>
> > Cc: <datsun-roadsters@autox.team.net>
> > Sent: Friday, March 30, 2001 2:46 PM
> > Subject: Roadster EFI
> >
> >
> > > What I'm considering is the use of an early 90's Bosch LH 2.4 Electronic
> > > Port Fuel Injection system that was used on some Euro cars.  Parts would
> > > include the ECU, injectors, Air Mass Meter [(AMM) hot-wire-type], O2
> > sensor,
> > > Temp. sensor, and throttle body with Throttle position sensor (TPS).  A
> > > wiring harness could be easily fabricated.  The parts would be least
> > > expensive if purchased used.
> > >
> > > The BIG problem to overcome is the intake manifold.  A custom setup is
> > gonna
> > > be required. $$$  I have to get a car, first, but I'm pretty sure I can
> > make
> > > a system that's gonna perform incredibly well with (I THINK) relatively
> > > inexpensive mods to the factory intake manifold!  Plus I have a friend
> in
> > > the engine management world who can probably help me out by spec'ing the
> > > right AMM and injectors.
> > >
> > > Depending on how far I go, there's a possibility of using a
> high-discharge
> > > ignition system (40kV) that controls the timing of each cylinder
> > > independently - THAT will take a little more work!
> > >
> > > Anybody wanna donate a 2.0L engine?
> > >
> > > James
> > >
> > > -----Original Message-----
> > > From: Daniel Neuman <dneuman@hodge.sfsu.edu>
> > > To: jamesuhl@mediaone.net <jamesuhl@mediaone.net>
> > > Cc: datsun-roadsters@autox.team.net <datsun-roadsters@autox.team.net>
> > > Date: Friday, March 30, 2001 12:57 PM
> > > Subject: Re: Jets for Solex
> > >
> > >
> > > >Hello,
> > > > Yes I would be interested.  What type of fuel injection system exactly
> > > >are you thinking about?  $700 bucks seems really really cheap do you
> > think
> > > >that you could get 'everything' for about that much?? And for that
> matte
> > > >what would constitute everything??
> > > > Daniel 69 2000
> > > > SF CA
> > > >
> > > >> Hey guys, this and other posts have me wondering..... would there be
> > any
> > > >> interest in a reliable (Bosch) Electronic Fuel Injection kit for the
> > > >> Roadsters?  I'm pretty sure I have the means to produce one if I put
> my
> > > mind
> > > >> to it.  I'm planning on making one for myself when the time comes.
> > > >>
> > > >> I would imagine the cost to be under $700 with used parts, but you'd
> > have
> > > a
> > > >> damn near perfect stochiometric ratio at all times - unlike carbs!
> > What
> > > do
> > > >> you think?
> > > >>
> > > >> James
> > > >>
> > > >> ----- Original Message -----
> > > >> From: <bob_wilson@agilent.com>
> > > >> To: <datsun-roadsters@autox.team.net>
> > > >> Sent: Thursday, March 29, 2001 8:03 PM
> > > >> Subject: Jets for Solex
> > > >>
> > > >>
> > > >> > This might be asking a lot, but I wondered if anyone had a bunch of
> > > jets
> > > >> for
> > > >> > a 40mm Solex carb. To tune it up the manual says basically to try
> > > >> different
> > > >> > jet sizes while following their procedure. Well, this could cost a
> > lot
> > > >> when
> > > >> > you don't exactly know how many sizes you need etc. And I need 4 of
> > > each
> > > >> > jet. If someone would trust me to return them (I would), I would be
> > > very
> > > >> > careful with them  and return all back to you when I knew the right
> > > sizes.
> > > >> > There are 3 different "jets":
> > > >> >
> > > >> > Main Jet      120
> > > >> > Main Air Jet  180
> > > >> > Pilot Jet      50
> > > >> > The number shown is the size in my carbs now.
> > > >> >
> > > >> > Since my engine is "spitting back" out thru the carb throats at
> idle,
> > > the
> > > >> > mikuni/solex manual says that I am probably too lean. So need to go
> > to
> > > >> > larger Pilot Jet. This is the first Jet I need to get right. Then
> go
> > on
> > > to
> > > >> > the others.
> > > >> >
> > > >> > I have made a stroker out of my 1600 block and head. So it is now a
> > > 2.0L,
> > > >> > with about 9.2 CR.
> > > >> >
> > > >> > If anyone could loan me some jets near to the above sizes, or
> > recommend
> > > >> the
> > > >> > correct sizes for my application, it would be nice.
> > > >> >
> > > >> > Bob Wilson
> > > >> > San Jose, Calif area
> > > >> > 1970 1600 stroker 28383



--
<><><><><><><><><><><>
 Thomas in Sweden
 Nissan Silvia 1965 x2
 http://csp311.cjb.net
 http://silvia.nu.st

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