Tom and Keith.
Keith, thanks for having the problems that
predicated the solutions. Tom and others, thanks
for the solutions. I know I jabber a lot on this
list, but I am eating up every bit of advice I
see and trying to make up for having one year of
experience fity times over. I print every
message that I feel pertains to what I may be
doing with my car, and I had to get a bigger ring
binder this weekend. I am getting a pretty good
reference manual together which covers everything
from tire size and gear ratios, to compression
ratios and roll cage construction. Shoot, I may
edit it and publish it as a reference for Newbee
Land Speed Racers.
Dick J
--- "Thomas E. Bryant" <saltracer@awwwsome.com>
wrote:
> Keith,
>
> I can't sit by silently and watch this unfold.
> I consider myself to be
> well educated in Nitrous Talk. I have learned
> what I know the way you
> are being educated, slowly and costly.
>
> I suspect that the engine was too lean which
> resulted in a holed piston.
> Was the hole a clean burn through, or a
> fractured hole? If it was
> timing, you will normally have a hammered hole
> producing fractures on
> the underside of the dome. A clean burn through
> is usually mixture. At
> least that has been my experience.
>
> I believe that someone suggested that you find
> your best timing and then
> set up the retard. That would be my suggestion
> as well. I was talking to
> some of those on list about timing on my
> motors. I used to start out by
> finding how much timing the engine wanted and
> then go to other tune up
> matters, for the last several years I have been
> taking others advice and
> staying with 38 degrees or so. This year,
> because John and Lionel had
> "raised the bar", I knew I had to get the most
> from the motor, so I went
> back to my old ways. Believe it or not, our
> best run last week 222.134
> MPH was with 49 degrees BTDC. As I have said
> many times, each engine has
> it's own requirements, so don't set yours up
> like mine.
>
> I will get the whole story of our week out
> later. Right now I am playing
> catch up at work and washing salt off. I still
> have to find out how bad
> we hurt the motor. A head gasket I believe. The
> engine temp 250 degree
> gauge was pegged on every run. Something had to
> give sooner or later.
>
> Tom, Redding CA - #216 D/GCC
>
> Keith Turk wrote:
> >
> > Well the one thing we know is that the Piston
> didn't have a hole in it until
> > I hit the N2O..... it was running 17 mph
> faster then it was on the Pass we
> > went 218 on.... at the 3... 16 more at the 2
> 1/4.... The car was on the
> > pass it was going to take to set the
> Record.... then I hit that nasty little
> > Red button just to see what it would do....
> >
> > Instant Hole ...Just add Nitrous... oh
> well...it could be worse...
> >
> > Keith... ( Why Yes Doug I understand the
> Greed concept)
> > ----- Original Message -----
> > From: "Joe Amo" <jkamo@rapidnet.com>
> > To: "Keith Turk" <kturk@ala.net>
> > Cc: "DOUG ODOM" <popms@thegrid.net>;
> <land-speed@autox.team.net>
> > Sent: Sunday, August 20, 2000 10:08 PM
> > Subject: Re: Motor Damage
> >
> > > Keith, in response to: "if you run a 225hp
> Nitrous hit on 4 degrees of
> > retard
> > > for less then 3 seconds... you Burn a Hole
> about 1/4 X1/8 in the top of
> > the #2
> > > Piston." I would argue that you cannot
> blame it completely on the
> > ignition
> > > timing, I feel that the burning sensation
> the piston felt was a result
> > more of a
> > > lean mixture than timing, Mr.
> Dahlgren...others....what do you think?
> > >
> > > You guys gave me crap when I said I used
> alot of bandaids this time of
> > year,
> > > well who needs a stinking compression
> gauge, we didnt need no stinking
> > > compression guage, on the last thrash the
> day of the last qualifing runs
> > we
> > > fired it up, and when we shut it off and
> reached for the tool box for the
> > > regularly scheduled compression and or leak
> down check, we all looked at
> > each
> > > other with the realization that it didnt
> matter what the gauge said, "WE
> > WERE
> > > RUNNING IT" so why the hell even look (no
> time to do anything about it if
> > it was
> > > low)? first miles on the motor netted
> 193.9 running out of nitrous (2 mph
> > over
> > > the record), next morning WELL over the
> record again ran out of nitrous,
> > can
> > > there ever be enough nitrous, I SAY NO
> (especially when we ran the bottle
> > for
> > > over 3 miles per run), but I see why
> Dahlgren and others (yes Mr. Van
> > Scoy) opt
> > > for naturally aspirated or turbo
> > >
> > > Joe :)
> > > Keith Turk wrote:
> > >
> > > > I had a Choice when I ordered them ... I
> could have bought four extra of
> > > > each set.... but opted for a set of Plug
> domes for the Rodeck....
> > > >
> > > > there is a company in Okalahoma city (
> not sure exactly but I think that
> > is
> > > > right ) called Rebco.... and they
> digitize your heads and make pistons
> > to
> > > > match your chambers... I bought the extra
> pistons for the Rodeck to have
> > > > them done this winter... The shame of it
> is that your exactly right had
> > I
> > > > an extra Piston ... I might have saved my
> week at Bville.... and Yeah...
> > > > Dave asked the question... He was out
> there building me a shopping list
> > of
> > > > Real Racer Tools and Parts... Geez he
> wants me to own a Leak down tester
> > and
> > > > a Valve Spring Tester..... What
> Nerve..LOL oh and an extra couple of
> > > > pistons and a Cylinder hone.... will the
> guy ever be satisfied?
> > > >
> > > > Next thing you know he will want me to
> build a Pointy Car that Goes
> > FAST....
> > > >
> > > > Keith (barrowed two compression testors
> out there... both were broken...
> > > > couldn't get any compression out of
> either of them on that #2 cylinder
> > > > hmmm )
> > > > ----- Original Message -----
> > > > From: "DOUG ODOM" <popms@thegrid.net>
> > > > To: "Keith Turk" <kturk@ala.net>
> > > > Cc: <land-speed@autox.team.net>
> > > > Sent: Sunday, August 20, 2000 7:35 PM
> > > > Subject: Re: Motor Damage
> > > >
> > > > > Keith; That is why they used to sell
> pistons to drag racers in sets of
> > > > > ten. Doug
> > > > >
> > > > > Keith Turk wrote:
> > > > > >
> > > > > > Well here is what we know so far....
> if you run a 225hp Nitrous hit
> > on 4
> > > > > > degrees of retard for less then 3
> seconds... you Burn a Hole about
> > 1/4 X
> > > > 1/8
> > > > > > in the top of the #2 Piston....
> Pretty little hole too I might
> > add...
> > > > > > didn't get near the Block and didn't
> appear to hurt any other
> > Parts...
> > > > the
> > > > > > Heads are FINE.... YEEEEAAAAAA... it
> was the best looking hole I
> > have
> > > > seen
> > > > > > in a LONG time....
> > > > > >
> > > > > > No Bent Valves... no cylinder
> damage... Nothing other then this
> > little
> > > > Girly
>
=== message truncated ===
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