I had to do some up grading to the Ignition system to sort out this Nitrous
stuff.... SOOOOOOO I finally stepped up to the plate and got some real Race
car parts for once....
bought a Crank Trigger , MSD distributor, multistep retard, and MSD coil.
oh and I suppose it was Time... I also got a set of Taylor 409 wires...
10mm junk..... Guess didn't like my Ole Reliable HEI.... and MSD 6Al... oh
well...
I am waiting to hear back from a Guy on a Rodeck Block.... We have the
numbers sorted out.... now we are just double checking the Actual Serial
number of the Block.... Neat Deal really and I want to thank Doug Odom for
making that Happen....
Keith ( yeah now the trick is to get all this junk together for Bville)
----------
> From: George Mitchell <americanpartner@yahoo.com>
> To: Dick J <lsr_man@yahoo.com>; dahlgren <dahlgren@uconect.net>; Thomas
E. Bryant <saltracer@awwwsome.com>
> Cc: John Beckett <landspeedracer@email.msn.com>; Land Speed List
<land-speed@autox.team.net>
> Subject: Re: Nitrous ---plates VS Fogger and stages
> Date: Thursday, June 01, 2000 11:17 AM
>
> My drag race chrysler uses two stages . One plate and
> one fogger type . The plate is a very low hit (150)
> and the nozzles are between 250 and 300. Because it is
> a chrysler my "testing" (read-- blown up stuff) has
> shown that because of the two matched exhaust ports in
> the center of each bank of cylinders they need a
> different setting than the outer cylinders on the jug.
> They simply run hotter naturally. An equal setting in
> all holes with a BIG plate hit produced a big BANG.
> Now the plate hit is relatively small to protect
> against uneven mixing in the plenum. My good run shows
> all the plugs about even.It took a few set of pistons
> to figure that out .
> I know a couple of pro mod guys running "three"
> stages. Most of them admit that not many have that
> third stage figured out and it is used only for a
> final round "I am gonna lose if I don't do something "
> effort . It usually ends in death smoke but maybe a
> winners check.
> By the way with all of the nitrous in my big heavy car
> it goes across the finish line with only 15 degrees of
> timing in it at the drag strip. MSD timing controller
> saves me from any more big BANGS in my view.
> George in DC
> Hemi Porsche guy
>
>
>
> --- Dick J <lsr_man@yahoo.com> wrote:
> > Thanks, to you too. I'm cataloging all of this
> > stuff.
> >
> > Dick J
> > --- dahlgren <dahlgren@uconect.net> wrote:
> > > are you using alky for both?? did some testing
> > > with a noted pro mod
> > > engine guy and found that if you are running
> > > alky as the main fuel the
> > > nitrous likes gasoline better as an added
> > > fuel.. makes a little more
> > > heat and lights off much nicer. For whatever
> > > that is worth to
> > > you.......Oh and watch out with the dry nitrous
> > > systems they can cause a
> > > big problem depending on how they calculate the
> > > enrichment fuel and
> > > where you add the nitrous.. Most just add a
> > > percent of the base map fuel
> > > which is not the way to go at all.. Nitrous
> > > needs the same lbs/hr no
> > > matter what the rpm is! Unless of course you
> > > have an engine that makes
> > > the same HP all through the RPM range LOL!!!
> > > and if you add a lot of
> > > nitrous in the plenum all bets are off as to
> > > how much goes to each
> > > runner but the injectors are putting the same
> > > amount of fuel in each
> > > runner. Can have some very rich and some very
> > > lean cylinders. Been there
> > > done that got the pistons to prove it.
> > > Dahlgren
> > > Engine Management Systems
> > >
> > > "Thomas E. Bryant" wrote:
> > > >
> > > > John,
> > > > Hmmm! Don't know if I should help you on
> > > this??? You thrash me pretty
> > > > good without nitrous, but then I have no
> > > secrets.
> > > >
> > > > We run a Kinsler prepared Crower 2.5 inch
> > > injector with the nitrous
> > > > plumbed on the underside of the manifold. We
> > > use a NOS 200 HP system,
> > > > single stage system that is jetted with fixed
> > > nozzles (one fuel and one
> > > > nitrous) in each intake port. We use a holley
> > > fuel pump with an
> > > > adjustable regulator for the added alcohol
> > > when nitrous is applied. This
> > > > past year we went to a digital MSD that
> > > retards (adjustable) when the
> > > > nitrous is applied. We generally use the
> > > nitrous for the last 1 1/2
> > > > miles at Bonneville and in high gear at the
> > > lakes.
> > > >
> > > > We have two 10 pound bottles on board. I
> > > found early on that for best
> > > > performance you need a fresh bottle on each
> > > run. However, our fastest
> > > > run at the World Finals was a second pass on
> > > the same bottle. We use
> > > > about 3 lbs. per run.
> > > >
> > > > When I was running geared for 8000 to 8200
> > > RPM, the application was very
> > > > thrilling, like hitting passing gear, but
> > > with the present gearing
> > > > (7600) it is fairly soft, but still exciting.
> > > It can get loose when the
> > > > nitrous is turned on. Nitrous was the trigger
> > > for Jeff's spins.
> > > >
> > > > A word of caution, I carried a nitrous system
> > > on the car for a couple of
> > > > years before I used it because I was having
> > > trouble with a high speed
> > > > by-pass system on the injection. You have to
> > > be certain that the engine
> > > > is jetted correctly before using the nitrous.
> > > The nitrous system is
> > > > properly jetted, but if you are lean on the
> > > basic jetting, when the
> > > > nitrous comes on it gets expensive, and can
> > > shorten your week. I run the
> > > > fuel pressure on the high side to be safe.
> > > With gasoline, proper
> > > > pressure may be more critical, with alky
> > > being a little rich doesn't
> > > > matter that much.
> > > >
> > > > It's fun, but be careful. See you at Muroc.
> > > >
> > > > Tom, Redding CA - #216 D/CC
> > > >
> > > > John Beckett wrote:
> > > > >
> > > > > Tom
> > > > >
> > > > > OK, now that I have Nitrous on the
> > > brain...hmmm...that's interesting. I
> > > > > have a few questions for those who run the
> > > stuff on the 'salt' or lakes. And
> > > > > you have been doing it successfully for
> > > some time now. 1) I guess you run
> > > > > with a Hilborn style injection system. So
> > > how do you plumb the
> > > > > system...fogger nozzles? 2) Do you run 1,
> > > 2 or more stages? and
> > > > > approximately how much HP per stage? 3)
> > > Do you use a controller? 4) When
> > > > > do you first apply the Nitrous? certain
> > > speeds, RPM? 5) How much Nitrous
> > > > > do you carry and use per run? 6) What's
> > > the traction situation like when
> > > > > you hit the button?
> > > > >
> > > > > Thanks
> > > > > John Beckett
> >
> >
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