Some still do in both directions.
datsunmike wrote:
> I think they still lied!!!!!
>
> Mike
> ----- Original Message -----
> From: Thomas the Swede <csp311@telia.com>
> To: datsunmike <datsunmike@nyc.rr.com>
> Cc: <datsun-roadsters@autox.team.net>
> Sent: Sunday, October 29, 2000 1:01 PM
> Subject: Re: Gross vs. net hp <was Mazda MX5 (Miata, I think)>
>
> > I think there were other changes done to the Detroit Iron
> > between 1970 and 1971-72(?) that count for most of the
> > power loss. They lowered the compression ratio and some
> > other emission related things were added.
> >
> > Thomas
> >
> > PS. The 280 ZX had 145 Hp net and 170 Hp gross in Europe.
> >
> > datsunmike wrote:
> >
> > > Tom,
> > >
> > > It's nice to know how much American car makers fudged their HP figures
> in
> > > the 60s and early 70s. Thanks.
> > >
> > > It's also nice to know Datsun was at least in the ball park.
> > >
> > > Mike
> > > ----- Original Message -----
> > > From: Thomas the Swede <csp311@telia.com>
> > > To: datsunmike <datsunmike@nyc.rr.com>;
> <datsun-roadsters@autox.team.net>
> > > Sent: Saturday, October 28, 2000 4:40 AM
> > > Subject: Re: Gross vs. net hp <was Mazda MX5 (Miata, I think)>
> > >
> > > > In Europe the 2000 Solex was rated at 145 Hp and the 1600 at 90 Hp.
> > > > The 67½ 2000 I know of in Sweden is rated at 135 Hp DIN in the car
> > > > registration document. It's a factory Solex car sold new in
> Switzerland.
> > > > The 240 Z was rated 140 Hp in Europe vs. the US 151 Hp SAE Gross.
> > > > The difference between gross and net hp SAE is usually 10-12% on older
> > > > Japanese engines. The difference between SAE net and DIN is usually
> > > > 1-3% higher for DIN because of a slightly different test procedure but
> > > > sometimes the SAE net Hp can be higher than DIN.
> > > >
> > > > Power is measured at 25 degrees C for DIN and 80F(?) for SAE.
> > > >
> > > > Thomas
> > > >
> > > > datsunmike wrote:
> > > >
> > > > > Dana,
> > > > >
> > > > > That's exactly right and a point I was going to bring up. Those
> 150HP
> > > > > Solexes are SAE GROSS HP figures, not NET figures as used today.
> > > > >
> > > > > For us older guys remember when in 1972 all the HP figures dropped
> for
> > > all
> > > > > the muscle cars?? Chevy 350/300HP cars went to 350/210HP, the Z28
> went
> > > from
> > > > > 350/370 to 350/270. That was because they went from gross to net HP
> > > ratings.
> > > > > The same happened to the Japanese cars. The 125HP 2L was probably
> closer
> > > to
> > > > > 100HP and the 1600 probably closer to 80HP or maybe 75HP.
> > > > >
> > > > > FWIW,
> > > > > Mike
> > > > >
> > > > > PS - The soft top action is great too! Takes me about 1.5 minutes to
> put
> > > it
> > > > > up and about 1 to take it down.
> > > > >
> > > > > ----- Original Message -----
> > > > > From: noji <noji@snowman.med.umn.edu>
> > > > > To: <datsun-roadsters@autox.team.net>
> > > > > Cc: <datsun-roadsters@autox.team.net>
> > > > > Sent: Friday, October 27, 2000 1:09 PM
> > > > > Subject: Re: Mazda MX5 (Miata, I think)
> > > > >
> > > > > > Roadster Folks,
> > > > > >
> > > > > > I thought there was a difference between the current measurement
> of HP
> > > > > > now and when our cars were made (wheels vrs engine). So wouldn't
> a
> > > > > > current 155 HP have a lot more power (given similar weights) than
> an
> > > > > > 1969 155 HP car?
> > > > > >
> > > > > > Dana
> > > > > >
> > > > > > PS If nothing else I would love to have a soft top that goes up as
> > > > > > easily and seals as well as a Miata's.
> > > > > >
> > > > > >
> > > > > >
> > > > > > datsunmike wrote:
> > > > > > >
> > > > > > > The new 2001 Miata has 155 HP SAE. I doubt that most Roadsters,
> > > > > including
> > > > > > > Solex models, would be able to keep up with it although off the
> line
> > > the
> > > > > > > Roadster might be able to take it because of torque and cubic
> inches
> > > but
> > > > > the
> > > > > > > six speed tranny does have a lower 1st gear so it may be close.
> With
> > > > > 116HP
> > > > > > > my car tops out at about 115, with 155HP it's probably closer to
> 130
> > > or
> > > > > so.
> > > > > > >
> > > > > > > In the handling department there is no comparision. the Miata is
> > > much
> > > > > > > stiffer and well balanced than any Roadster I have ever driven
> and
> > > has
> > > > > > > better steering. My Konied, sway barred, Miata will blow most
> > > Roadsters
> > > > > away
> > > > > > > in the corners, except for Calspeed.
> > > > > > >
> > > > > > > I'm not talking about race cars here but street cars.
> > > > > > >
> > > > > > > 30+ years of technology has made the Miata a great car. Mine is
> a 91
> > > and
> > > > > the
> > > > > > > 2001 Miatas are supposed to be much stiffer and better handling.
> > > While I
> > > > > > > love my Roadster, I also love my Miata.
> > > > > > >
> > > > > > > IMHO,
> > > > > > >
> > > > > > > Mike
> > > > > > >
> > > > > > > ----- Original Message -----
> > > > > > > From: Stephen McCartney <sgam@hotmail.com>
> > > > > > > To: <datsun-roadsters@autox.team.net>
> > > > > > > Sent: Thursday, October 26, 2000 7:19 PM
> > > > > > > Subject: Mazda MX5 (Miata, I think)
> > > > > > >
> > > > > > > > I just read that Mazda are bringing out a new model of MX5
> (which
> > > most
> > > > > > > > people here call a Miata, right?) that will bring it's power
> up to
> > > > > about
> > > > > > > > 112kw, IIRC.
> > > > > > > >
> > > > > > > > So now it's on par with a Solex 2000?
> > > > > > > >
> > > > > > > > Has anyone here got experiences in taking on these things?
> I'd
> > > assume
> > > > > the
> > > > > > > > Mazda would handle better, but maybe isn't as quick? I'd
> never
> > > > > thought
> > > > > > > that
> > > > > > > > I could beat one, but on paper, it's looking possible...
> > > > > > > >
> > > > >
> > >
> _________________________________________________________________________
> > > > > > > >
> > > > > > > >
> > > > > >
> > > > > > --
> > > > > > Dana Nojima, Ph.D.
> > > > > > Department of Urology
> > > > > > VA Medical Center - 112F
> > > > > > 4150 Clement Street
> > > > > > San Francisco, CA 94121
> > > > > >
> > > > > > phone: (415) 221-4810 x 2031
> > > > > > fax: (415) 750-6639
> > > > > > noji-1@pacbell.net
> > > >
> > > >
> > > >
> > > >
> >
> >
> >
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