I have checked my records and the stock rod weight with stock "Bees" rod
bolts was 859 grams. The lightened weight was 740 with standard bolts. The
bolts weigh 80 grams. Arp bolts would be lighter. the pistons were 460
grams, the pins 105 grams, the ring set was 35 grams. The inertia loads at
TDC overlap is what causes the rod breakage. The "pop up" pistons that I am
using now, the pop up is only .070" inch high weigh 421 grams without pin or
rings.
regards,
Greg Solow
----- Original Message -----
From: Greg Solow <gregmogdoc@surfnetusa.com>
To: Jack Wheeler <jwheeler@robus.com>; 'Paul Richardson'
<Paul-Richardson@cyberware.co.uk>
Cc: 'FOT' <fot@autox.team.net>
Sent: Sunday, October 31, 1999 12:41 PM
Subject: Re: Weight of revolving mass
> Years ago I lightened some standard rods for my own race engine. As I
> remember the standard rods with bolts weighed around 2 lbs., ie 896 grams.
> By working mostly on the big end, I was able to get them down to around
700
> grams. I used short, tapered inside pins and lightened the powermax
> pistons. I will check the actual weights and forward that on later today.
> After about 80,000 miles of road use and 30 race weekends, vintage, using
a
> rev limit of 6800 rpm, a rod broke at the cylinder wall oiling hole at
> around 6,000 rpm. It put a big hole in the right side of the block just
in
> line with the headers. The corner workers said that the whole underside
of
> the car was one sheet of flame caused by the oil lighting on fire as it
hit
> the hot headers. The big end of the rod was still intact and the piston
> with the end of the rod above the oil hole went up to the top of the bore
> and stayed there, the center part of the rod left the engine and was never
> found. I shut the engine down as quickly as I could, in the Morgan, I
could
> see debris come through the hood louvers when the rod let go. I was very
> lucky as the only damage was to one rod, one piston, one liner and the
> block. Everything else was ok, even the cam and crank! But, ever since
I
> have used and recomended billet rods for any engines turned more than
6,000
> RPM. The oil fire went out as soon as the engine stopped pumping oil
onto
> the headers.
>
> Regards, Greg Solow
> ----- Original Message -----
> From: Jack Wheeler <jwheeler@robus.com>
> To: 'Paul Richardson' <Paul-Richardson@cyberware.co.uk>
> Cc: 'FOT' <fot@autox.team.net>
> Sent: Thursday, October 28, 1999 3:44 AM
> Subject: Weight of revolving mass
>
>
> >
> > ------ =_NextPart_000_01BF210F.E3D9EFC0
> >
> > Paul, further to our earlier discussion..... Last night, just for fun,
I
> > decided to weigh one of my old lightened rods, and compare it to a stock
> > rod (these are TR-3/4 rods). The stock rod (same one I used the other
> day)
> > was 956 grams. My lightened rod was 848 grams. In addition, in the
race
> > motors, I used tool steel wrist (er, gudgeon) pins which had much
thinner
> > wall thickness, and were therefore much lighter than the stock ones. I
> > also lightened the pistons. So, there is obviously quite a bit of
> > potential for lightening these components.
> >
> > -----Original Message-----
> > From: Paul Richardson [SMTP:Paul-Richardson@cyberware.co.uk]
> > Sent: Thursday, October 28, 1999 2:57 AM
> > To: fot@autox.team.net
> > Subject: quotation addition
> >
> >
> > Roger Beasley wrote
> >
> > > I believe it was John Cleese (or one of the Monty Python group) who
said
> > of
> > > America and England, "Two great countries separated by a common
> > language".
> >
> > Hi Roger - Spike Milligan (one of the goons) also said "English is a
> great
> > language which has been badly translated by the Welsh, the Scots and the
> > Irish."
> >
> > Spike once mounted 20 pound notes inside separate glass fronted picture
> > frames with expensive guilt edges and posted them round the world to
> > various Presidents, Kings and Queens and the Pope. Under the pound note
in
> > each frame was a beautifully hand written note which read, "IN CASE OF
> > BANKRUPTCY BREAK CLASS."
> >
> > Spike's latest 'off the cuff' remark was made on TV last week. He was
> > involved in an interview with Harry Secome (another member of the
original
> > goon show team). Harry, bless his heart, is getting over a bad stroke,
> > which was what the TV programme was about. Harry made the mistake of
> asking
> > Spike, "Well do I look any better mate? Spike replied, "You look bloody
> > marvelous to me, cos' I thought you'd been dead for the last five
years."
> >
> > Paul
> > stroke
> > ------ =_NextPart_000_01BF210F.E3D9EFC0
> >
> >
>
eJ8+IiALAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAEIgAcAGAAAAElQTS5NaWNy
> >
>
b3NvZnQgTWFpbC5Ob3RlADEIAQ2ABAACAAAAAgACAAEEkAYAPAMAAAIAAAARAAAAAwAAMAMAAAAL
> >
>
AA8OAQAAAAIB/w8BAAAATQAAAAAAAACBKx+kvqMQGZ1uAN0BD1QCAAABAFBhdWwgUmljaGFyZHNv
> >
>
bgBTTVRQAFBhdWwtUmljaGFyZHNvbkBjeWJlcndhcmUuY28udWsAAAAAHgACMAEAAAAFAAAAU01U
> >
>
UAAAAAAeAAMwAQAAACAAAABQYXVsLVJpY2hhcmRzb25AY3liZXJ3YXJlLmNvLnVrAAMAFQwBAAAA
> >
>
AwD+DwYAAAAeAAEwAQAAABIAAAAnUGF1bCBSaWNoYXJkc29uJwAAAAIBCzABAAAAJQAAAFNNVFA6
> >
>
UEFVTC1SSUNIQVJEU09OQENZQkVSV0FSRS5DTy5VSwAAAAADAAA5AAAAAAsAQDoAAAAAAwBxOgAA
> >
>
AAAeAPZfAQAAABAAAABQYXVsIFJpY2hhcmRzb24AAgH3XwEAAABNAAAAAAAAAIErH6S+oxAZnW4A
> >
>
3QEPVAIAAAEAUGF1bCBSaWNoYXJkc29uAFNNVFAAUGF1bC1SaWNoYXJkc29uQGN5YmVyd2FyZS5j
> >
>
by51awAAAAADAP1fAQAAAAMA/18AAAAAAgH2DwEAAAAEAAAAAAAAAxAAAAADAAAwBAAAAAsADw4A
> >
>
AAAAAgH/DwEAAABgAAAAAAAAALU7wsAsdxAaobwIACsqVsIVAAAAT99TR3PV0hGKkgDgKTNIiiSG
> >
>
AAAAAAAAgSsfpL6jEBmdbgDdAQ9UAgAAAABGT1QAU01UUABmb3RAYXV0b3gudGVhbS5uZXQAHgAC
> >
>
MAEAAAAFAAAAU01UUAAAAAAeAAMwAQAAABMAAABmb3RAYXV0b3gudGVhbS5uZXQAAAMAFQwCAAAA
> >
>
AwD+DwYAAAAeAAEwAQAAAAYAAAAnRk9UJwAAAAIBCzABAAAAGAAAAFNNVFA6Rk9UQEFVVE9YLlRF
> >
>
QU0uTkVUAAMAADkAAAAACwBAOgEAAAAeAPZfAQAAAAQAAABGT1QAAgH3XwEAAAAsAAAAvwAAALU7
> >
>
wsAsdxAaobwIACsqVsIVAAAAT99TR3PV0hGKkgDgKTNIiiSGAAADAP1fAQAAAAMA/18AAAAAAgH2
> >
>
DwEAAAAEAAAAAAAABLOoAQSAAQAZAAAAV2VpZ2h0IG9mIHJldm9sdmluZyBtYXNzAC0JAQWAAwAO
> >
>
AAAAzwcKABwABgAsABsABABNAQEggAMADgAAAM8HCgAcAAYAJgAXAAQAQwEBCYABACEAAAAxMEY4
> >
>
RTBFMDAxOEREMzExOEE5MjAwNTAwNDZGMkQ5MADnBgEDkAYAyAkAACIAAAALAAIAAQAAAAsAIwAA
> >
>
AAAAAwAmAAAAAAALACkAAAAAAAMALgAAAAAAAwA2AAAAAABAADkAAAwsyjkhvwEeAHAAAQAAABkA
> >
>
AABXZWlnaHQgb2YgcmV2b2x2aW5nIG1hc3MAAAAAAgFxAAEAAAAWAAAAAb8hOcoS4OD4FI0BEdOK
> >
>
kgBQBG8tkAAAHgAeDAEAAAADAAAATVMAAB4AHwwBAAAAFwAAAFJPQlVTMS9ST0JVU01BSUwvamFj
> >
>
a3cAAAMABhDxw8RiAwAHEMUFAAAeAAgQAQAAAGUAAABQQVVMLEZVUlRIRVJUT09VUkVBUkxJRVJE
> >
>
SVNDVVNTSU9OTEFTVE5JR0hULEpVU1RGT1JGVU4sSURFQ0lERURUT1dFSUdIT05FT0ZNWU9MRExJ
> >
>
R0hURU5FRFJPRFMsQU5EQ09NAAAAAAIBCRABAAAAbwYAAGsGAAAeCQAATFpGdbVh5d8DAAoAcmNw
> >
>
ZzEyNRYyAPgLYG4OEDAzM50B9yACpAPjAgBjaArA4HNldDAgBxMCgwBQoRB2cHJxMhF2fQqA2QjI
> >
>
IDsJbw4wNQKACoFsdWMAUAsDYxISC8QggFBhdWwsIGYIcIR0aASQIHRvIAhhlCBlCsBsCJEgZAQA
> >
>
VGN1BBBpAiAuGcIgMCBMYXMFQAMAZ2j6dBeQahlgBUACEAXAF7BabheQSRkQBZBpAQBkmRgid2Ua
> >
>
kRhQbmUYUNBmIG15GFBsHFAY0M8aoQnwHEEDYGRzF5AAcNscUAWgbQqxHSBpBUAYMURhIBpQb2Nr
> >
>
HnIgHigX4REwHtAfcVRSLagzLzQecykaAVQX8PkgGnNhB4Ac8xvQGWAcQoUicW8X42RheSkckMEa
> >
>
QCA5NTYgCcAjYDpzGgFNHYAd6yUzODRKOCW3SQOgYWQZIHTfGZEXkAuAJEMl0GMdIARg7xgwESAb
> >
>
siQEbwbwIBEJ4G0DIHcFEBpRKASQF5BnsHVkZ2UCICUgcAuAeQQgd2gN4BzgEQAcUG1/FgAc4Bfg
> >
>
C4AdEAXAJUBs/wMgLgEgUB0QBBAexBygH3H/F+IBEAWwKcEtwh3kGBERAJ8pNCAkHQEoEx7QbHMY
> >
>
QD8d6CRSLMAgIQCAGgFTb48XkDATH5AEIG9idhmQZRlgbB2AcXUfoCERIPZiH6EdQXAkkAnwKMAH
> >
>
QPcbMx3lC4BnJEIhAR8iHQF/AjAmAAqiCoQKhAswGNAzPjYBQBaQAUASwDdBY3RVEgQxJaAtPJJP
> >
>
BRBn6wuAN6FNLzFhLGA8kznWDzukO3ELEzumaS0xNMY0AUAY0DE4MAFADNBRQDNiIEYDYToMg2I/
> >
>
FzQH8C0xCxEzIAOgW1NQTVRQOhdSLUKoQLhjeWIEkCVACXAuBaDwLnVrXTnVQWAGYAIwt0HHImAI
> >
>
cHMk8ReQTzvgkzWgGAEyOBeQMTlIgFFIIDo1NxFwTUW3VGZvQccCEHRAF2AYMHh2Lh4gI2AuHRA7
> >
>
8EXHdbxiajvRQcc2QCSQYSjC/yh3Pj8/Sjr0C7Y56QgALGDtBcBCGKA2AGUdgCuAN0F3OdQK4wqA
> >
>
PhvBRNAY0XajH4MlQkpvaAOgQ1JA3SDyKAWxHQUkUk0CIR2AvFB5F+BDIQnACGBwJSF/VxAgEAtw
> >
>
CzE58h1AU0ZB2weABRBjIAAe4kUPIA8B4mQXkCJUdxhACcFNYPsfERuQdAiBBCARMAqxTWD9HEFi
> >
>
HYAgAB8hBGBONQ8CynU9sSI5y0hpB/FRwvYtBgAswGtWYQMQHeEDkftVkFXoZyrgAIAlIDMDWAL9
> >
>
GhAiWgIEABzgNXEgAFrj/108LQcEIETQCfA2sCiANhHfW4AAcQtgXEUkUlcrUGLQfzTzBgAFoDmg
> >
>
HtMX4TnUSfErkWguIlM1OdRfpAIgfymzW2EcQRchNzAbkBxQbv83QQQgLNEcIVvXJbALYAQR/wNR
> >
>
awMswDvgCHBSxQNQI2HHLPEfoBzgZXhwCfAAkP9UMSwwAxAFQAmALGBn9Dcw+yshJDNtHnFroiRS
> >
>
WrAYwPscUjnUdgrANdIXQAlwbGLbOZEXkEs4gWf0UQpQb+HbaAYXQG9v0BoAVR7wMVP/NBFrlykR
> >
>
OdQYoC1BbvMlM/82oRigSsAGkBdwNhExkScxfwUQAkBlUXfDLRRa8VpiSaJOVRBBU0VHoEY51ABC
> >
>
QU5LUlVQVIRDWVHwUkVBS1UQ2kx8kFNpMGlvJwQgZjK9GlEnHUBWJBlQASAne9F9AMByIGAlQgDA
> >
>
bIFDIVROVoABGlEcoGVrGgBI93kjOdQLgHYG8FQwHFApIb8DkQuAMUE1wAfRb2NICsD+ch2ABmAf
> >
>
IVVxAHAklAeA/wbQGAFWFQWwPQQ51GFSIBD/VxAH4EsSIiGGIxeQAmAvMf8tYDVxF/AKwBrBNXEs
> >
>
YAJA/TiCb1QwBcA2oS2BGlADYP1f0Cw51C0UJUItEFsRJFL/gqE7kSXCeRYG4ErAijWCFHUkUm0r
> >
>
oWFqUh1QGkBr3ziBaclacWcBAyBkGEAb0P8JAI1gHtEdgETQeuGHYVwxvj9flQlwC1AIkFpiWQhg
> >
>
55QkAmAq4GR5OdSBkVQwvwkAc+EYMQeAF5AFoHOBUEsb0FcBdRqhIHkIYCf/XGFlQgEALYEbQiRS
> >
>
gtNAAP1UMXkYoSYAfssXUjnUjTQLOdQTgQCe0AADABAQAAAAAAMAERAAAAAAHgBCEAEAAAAvAAAA
> >
>
PDE5OTkxMDI4MDc1Mi5JQUExMzY2NUBoZWFybm8uY3liZXJ3YXJlLmNvLnVrPgAAAwCAEP////9A
> >
>
AAcwYEnr8DghvwFAAAgwYEnr8DghvwELAAGACCAGAAAAAADAAAAAAAAARgAAAAADhQAAAAAAAAMA
> >
>
AoAIIAYAAAAAAMAAAAAAAABGAAAAABCFAAAAAAAAAwADgAggBgAAAAAAwAAAAAAAAEYAAAAAUoUA
> >
>
AHQQAAAeAASACCAGAAAAAADAAAAAAAAARgAAAABUhQAAAQAAAAUAAAA4LjAyAAAAAAMABYAIIAYA
> >
>
AAAAAMAAAAAAAABGAAAAAAGFAAAAAAAACwAGgAggBgAAAAAAwAAAAAAAAEYAAAAADoUAAAAAAAAD
> >
>
AAeACCAGAAAAAADAAAAAAAAARgAAAAARhQAAAAAAAAMACIAIIAYAAAAAAMAAAAAAAABGAAAAABiF
> >
>
AAAAAAAAHgAJgAggBgAAAAAAwAAAAAAAAEYAAAAANoUAAAEAAAABAAAAAAAAAB4ACoAIIAYAAAAA
> >
>
AMAAAAAAAABGAAAAADeFAAABAAAAAQAAAAAAAAAeAAuACCAGAAAAAADAAAAAAAAARgAAAAA4hQAA
> > AQAAAAEAAAAAAAAAHgA9AAEAAAABAAAAAAAAAAMADTT9NwAAYpE=
> >
> > ------ =_NextPart_000_01BF210F.E3D9EFC0--
> >
> >
>
>
|