As of last year there was no Nitrous fill station available at Speedweek. In
1998 we were offered a portable fill station however, the cost went from
free to several hundred dollars out of our pocket so we didn't take
advantage of the offer.
The last time we used Nitrous in Rich Manchen's Alfa we took 4 10# bottles,
swapping a bottle in for each leg of the record run. We used a little less
than a full bottle for a 3 mile run on the long course.
Dan (if a little NOS is good then a lot more is better) Warner
----- Original Message -----
From: Keith Turk <kturk@ala.net>
To: Thomas E. Bryant <saltracer@awwwsome.com>; Dick J <lsr_man@yahoo.com>
Cc: dahlgren <dahlgren@uconect.net>; <Land-speed@autox.team.net>
Sent: Monday, May 22, 2000 7:47 AM
Subject: Re: Fuel and Gas Class
> Is there Nitrous available at the ERC Trailer? How do you guys fill your
> bottles? Just a Side thought this morning.....
>
> K
>
> ----------
> > From: Thomas E. Bryant <saltracer@awwwsome.com>
> > To: Dick J <lsr_man@yahoo.com>
> > Cc: dahlgren <dahlgren@uconect.net>; Land-speed@autox.team.net
> > Subject: Re: Fuel and Gas Class
> > Date: Monday, May 22, 2000 9:38 AM
> >
> > Dick,
> >
> > Sorry, I didn't reply to the main issue in your question. I have not run
> > gasoline with nitrous as yet. I would imagine that the same logic would
> > apply as with the fuels without nitrous. Alky has a higher octane
> > allowing higher compression ratios, but I will attest that Alky will
> > detonate at 12.5:1 when you hit the nitrous switch. (Five pistons in
> > about two seconds) If your tuneup isn't right.
> >
> > Tom, Redding CA - #216 D/CC
> >
> > Dick J wrote:
> > >
> > > What CR would be recommended for Nitro/Alky mix,
> > > higher or lower than for gasoline?
> > >
> > > --- "Thomas E. Bryant" <saltracer@awwwsome.com>
> > > wrote:
> > > > Dick,
> > > >
> > > > It really depends on what you want to do, I
> > > > guess. I have always used
> > > > the same motor in both classes. I just build
> > > > for Gas Class and accept
> > > > that it will be a little less effective on
> > > > Fuel.
> > > >
> > > > We run about 12.5:1 compression, I have found
> > > > that it gets real
> > > > difficult to get much more than 13:1 in a 302
> > > > cu in Chevrolet motor. We
> > > > do well on Alky, better when adding nitrous,
> > > > and have run 33% nitro with
> > > > good success in the 1/4 and 1/2 mile drags. In
> > > > 1967, we ran 190 MPH at
> > > > El Mirage in D/FR, at that time we held the
> > > > D/GR record at 173.74 MPH.
> > > > That was as far as I could run the engine on
> > > > nitro without major
> > > > problems, it was detonating severely at the end
> > > > of the run. My best time
> > > > at Bonneville on nitro was 196, I could never
> > > > make it live past the 1
> > > > 1/2 mile with all cylinders running. It was
> > > > surely a great ride while it
> > > > lasted.
> > > >
> > > > I was running a basic gasoline setup, just
> > > > changing nozzles and jet, the
> > > > fuel pump was a Hilborn "0" which didn't
> > > > deliver enough fuel for the
> > > > longer runs. Everyone told me that running that
> > > > percentage on 12.5:1
> > > > compression ratio wouldn't work and basically
> > > > they were right, but I got
> > > > by with it on the short runs and had a ball.
> > > > Kinsler tells me that I
> > > > could run up to 20% nitro with the pump and
> > > > nozzles I am using for Alky.
> > > > They recommend going 16% larger richer on the
> > > > bypass jet for each 10% of
> > > > nitro. Some day I'm going to try it again. I
> > > > have five gallons of nitro
> > > > that I have been saving for a long time.
> > > >
> > > > Tom, Redding CA - #216 D/CC
> > > >
> > > >
> > > >
> > > >
> > > > Dick J wrote:
> > > > >
> > > > > Tom,
> > > > > I was just cruisin through your website again
> > > > and
> > > > > noticed that you made the notation that you
> > > > run
> > > > > both gas and fuel under a single photo, which
> > > > got
> > > > > me thinking. Do you run both gas and fuel in
> > > > the
> > > > > same motor? Can you do it all at one meet?
> > > > Or is
> > > > > it a complete changeover from one meet to
> > > > > another? I have often wondered what the
> > > > > differences between fuel and gas motors were.
> > > > I
> > > > > know that gas motors run common CRs in the
> > > > 10:1 -
> > > > > 12:1 area, and alcohol runs something like
> > > > 15:1.
> > > > > What if they are blown motors, CR must be a
> > > > lot
> > > > > lower. What about unblown nitro motor - what
> > > > > kind of CR does that run? And last, what
> > > > about a
> > > > > blown nitro motor - what CR do they run?
> > > > >
> > > > > I guess what I'm asking is: can a single
> > > > motor,
> > > > > either blown or unblown, be built to run both
> > > > > gasoline and nitro, or alcohol with just
> > > > simple
> > > > > changes like timing and jets?
> > > > >
> > > > > =====
> > > > > .............................
> > > > > ..........Dick J.............
> > > > > ......(In East Texas)........
> > > > > ..........# 729..............
> > > > > ........Roadsters............
> > > > > .Hemis and Flatheads Forever.
> > > > > .............................
> > > > >
> > > > >
> > > >
> > > __________________________________________________
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> > >
> > > =====
> > > .............................
> > > ..........Dick J.............
> > > ......(In East Texas)........
> > > ..........# 729..............
> > > ........Roadsters............
> > > .Hemis and Flatheads Forever.
> > > .............................
> > >
> > > __________________________________________________
> > > Do You Yahoo!?
> > > Send instant messages & get email alerts with Yahoo! Messenger.
> > > http://im.yahoo.com/
>
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