2008 engine build
Moderator: DLRA
- gennyshovel
- Posts: 866
- Joined: Tue Mar 29, 2005 10:10 am
- Location: Broken Hill
Re: 2008 engine build
Progress is still happening in "the hill" with the postie,,,,s l o w l y ,,
The new conrod(3mm longer) enabled me to up the compression ratio to 15.5 / 1 ,which the methanol will love
. The rod ratio is now 2.28 / 1
Hopefully , this combination should enable me to "safely" pull 12,000 rpm next year without dropping it's innards onto the salt.
To help keep things in place, I'm making an engine strap out of 3/8" staninless steel bar, anchored to the upper rear engine mount, and the footrest mount castings under the engine, and tied into the front engine mount casting, ending up over the head where it's reinforced with some 1/8" Stainless plate, between which sits a 1/4" "H" bracket tapped to 8mm x 1.25 which will allow me to apply an extra 15 ft/lb to the head, via 2 countesunk head allen bolts kindly put there by Yamaha (for no apparent reason?)
I'll post some pics of the completed setup once its finished.
Work has also started on a fairing nose cone mould (taken from a voodoo jet fighter wing tank), and that is taking a LOT of work, but it's almost ready for a "buck" mould, but then there is the middle and back sections to design / build.
The new conrod(3mm longer) enabled me to up the compression ratio to 15.5 / 1 ,which the methanol will love
. The rod ratio is now 2.28 / 1
Hopefully , this combination should enable me to "safely" pull 12,000 rpm next year without dropping it's innards onto the salt.
To help keep things in place, I'm making an engine strap out of 3/8" staninless steel bar, anchored to the upper rear engine mount, and the footrest mount castings under the engine, and tied into the front engine mount casting, ending up over the head where it's reinforced with some 1/8" Stainless plate, between which sits a 1/4" "H" bracket tapped to 8mm x 1.25 which will allow me to apply an extra 15 ft/lb to the head, via 2 countesunk head allen bolts kindly put there by Yamaha (for no apparent reason?)
I'll post some pics of the completed setup once its finished.
Work has also started on a fairing nose cone mould (taken from a voodoo jet fighter wing tank), and that is taking a LOT of work, but it's almost ready for a "buck" mould, but then there is the middle and back sections to design / build.
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering
Postiebike Racing , created & funded by TwoBob Engineering
Re: 2008 engine build
Tiny a good battery drill should spin fast enough for what you want. A bit more control with it too. You can use a hand held speed brace if thats all you have.
Chris
Chris
Acme Racing #251
- gennyshovel
- Posts: 866
- Joined: Tue Mar 29, 2005 10:10 am
- Location: Broken Hill
Re: 2008 engine build
More update pics
Lets see the head blow off now !
If it does, at least I won't run over it
Lets see the head blow off now !
If it does, at least I won't run over it
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering
Postiebike Racing , created & funded by TwoBob Engineering
- ROSS BROWN
- Posts: 477
- Joined: Thu Feb 18, 2010 6:43 pm
- Location: COORPAROO BRISBANE
Re: 2008 engine build
IT's been three months since your last confession Tiny.....
Whats happening in here.....?
Cheers "Nosey"
Whats happening in here.....?
Cheers "Nosey"
IT IS ALL A RACE AGAINST TIME.
TIME WAITS FOR NO ONE.
HOW FAST CAN YOU GO ?
S/UF 925
TIME WAITS FOR NO ONE.
HOW FAST CAN YOU GO ?
S/UF 925
-
- Posts: 1315
- Joined: Tue Jul 05, 2005 11:23 pm
- Location: Right behind you Chief !
Re: 2008 engine build
he's playin' possum.
...few understand what I'm trying to do , but they vastly outnumber those who understand why..
- gennyshovel
- Posts: 866
- Joined: Tue Mar 29, 2005 10:10 am
- Location: Broken Hill
Re: 2008 engine build
Err,, well,,,,,gulp,,,I won't be ready,,,fast (HA !) fiberglass indeed teach,,,,,,
But,,everything in the shed has turned pinkish white, including a new species of spider,,the pink back .
I'm up to my 8th kg of bog dust,,bog on,,,bog off,,and its (the glass rendition of the plaster of paris cast I took from Clarey's [Csquared] tank what seems like a decade ago.)not a Buck yet.
I've peeesed orf the radiator,,and made a flash 7 ltr alloy water tank that sits under the swing arm, complete with 2 pinhole leaks
But,,,the seeds of "project 2013" have been sown,(perhaps I'd better call it "project 2015"if it's anything like "2008") and yup,,true to form,,it'll be another "slow" bike.but with an extra wheel,on a stick,and it'll whirr and it'll scream,,,and ,,no,,its NOT a spew stroke (apologies to Brett DeBest )
But,,everything in the shed has turned pinkish white, including a new species of spider,,the pink back .
I'm up to my 8th kg of bog dust,,bog on,,,bog off,,and its (the glass rendition of the plaster of paris cast I took from Clarey's [Csquared] tank what seems like a decade ago.)not a Buck yet.
I've peeesed orf the radiator,,and made a flash 7 ltr alloy water tank that sits under the swing arm, complete with 2 pinhole leaks
But,,,the seeds of "project 2013" have been sown,(perhaps I'd better call it "project 2015"if it's anything like "2008") and yup,,true to form,,it'll be another "slow" bike.but with an extra wheel,on a stick,and it'll whirr and it'll scream,,,and ,,no,,its NOT a spew stroke (apologies to Brett DeBest )
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering
Postiebike Racing , created & funded by TwoBob Engineering
- gennyshovel
- Posts: 866
- Joined: Tue Mar 29, 2005 10:10 am
- Location: Broken Hill
Re: 2008 engine build
Once apon a time , in a village far far away,,the townfolk drank "special" water , this water enabled the drinker to think of "different" things to build, "different" things to do,,,although all these "different" things revolved around one more "special" thing,,,,,,,,,
THE HUMBLE MILK CRATE
THE HUMBLE MILK CRATE
Last edited by gennyshovel on Tue Feb 01, 2011 9:23 am, edited 1 time in total.
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering
Postiebike Racing , created & funded by TwoBob Engineering
Re: 2008 engine build
what are you guys on, ya bunch of freaks.
that looks fun
that looks fun
ben james dlra#389
moriwaki monster.
moriwaki monster.
-
- Posts: 1315
- Joined: Tue Jul 05, 2005 11:23 pm
- Location: Right behind you Chief !
Re: 2008 engine build
C'mon Tiny, put it up, go on you know the one I mean, put it up there, yeah that one where the horizon shifted....
...few understand what I'm trying to do , but they vastly outnumber those who understand why..
- Reverend Hedgash
- Posts: 448
- Joined: Wed Oct 19, 2005 2:19 pm
- Location: Hobart, Tasmania
- ROSS BROWN
- Posts: 477
- Joined: Thu Feb 18, 2010 6:43 pm
- Location: COORPAROO BRISBANE
Re: 2008 engine build
Tiny,
One wrist band means that your at the races.....
Two wrist bands mean that youv'e been let out of the assylum for the day
What might you want to be fitting that supercharger too Tiny...
Also see that you lot don't waste to much of that "special water" on the surounding enviroment.
"WHEEL ON A STICK" " Class act ! "
One wrist band means that your at the races.....
Two wrist bands mean that youv'e been let out of the assylum for the day
What might you want to be fitting that supercharger too Tiny...
Also see that you lot don't waste to much of that "special water" on the surounding enviroment.
"WHEEL ON A STICK" " Class act ! "
IT IS ALL A RACE AGAINST TIME.
TIME WAITS FOR NO ONE.
HOW FAST CAN YOU GO ?
S/UF 925
TIME WAITS FOR NO ONE.
HOW FAST CAN YOU GO ?
S/UF 925
- gennyshovel
- Posts: 866
- Joined: Tue Mar 29, 2005 10:10 am
- Location: Broken Hill
Re: 2008 engine build
A slight change of direction
Meet Laszlo , those that know the "real" Laszlo will understand,,
You might recognise the frame, it's Cec Fraser's M/F-175 from last year, with the CBR250's forks , swingarm and wheels, and like all projects, it's eating up the quids real fast.
I'm picking up the blower extended drive shaft, the machined pulleys (choice of 8.5 LB, and 10.5 LB boost) this week, and hope to finish the welding on the SS intake and hopefully, finish the collector, fit the blower and measure centres so as to order a couple of glymer 25mm HDT5 belts.
I'm taking the drive from the L/H side by extending the crank bolt that holds the CDI trigger in place with a grade 8 bolt I've had machined, this will be supported by an oiled bush located behind the drive pulley in the engine cover, hopefully,,,,
I can't find the cams I need (yet) so if anyone has a set from a 1986 cbr250F in stock,,lemmee know (only the 1st year used cam timing with zero overlap between ex closing, and inlet opening) and I might be tempted to take that constipated rocking horse off your hands too.
Meet Laszlo , those that know the "real" Laszlo will understand,,
You might recognise the frame, it's Cec Fraser's M/F-175 from last year, with the CBR250's forks , swingarm and wheels, and like all projects, it's eating up the quids real fast.
I'm picking up the blower extended drive shaft, the machined pulleys (choice of 8.5 LB, and 10.5 LB boost) this week, and hope to finish the welding on the SS intake and hopefully, finish the collector, fit the blower and measure centres so as to order a couple of glymer 25mm HDT5 belts.
I'm taking the drive from the L/H side by extending the crank bolt that holds the CDI trigger in place with a grade 8 bolt I've had machined, this will be supported by an oiled bush located behind the drive pulley in the engine cover, hopefully,,,,
I can't find the cams I need (yet) so if anyone has a set from a 1986 cbr250F in stock,,lemmee know (only the 1st year used cam timing with zero overlap between ex closing, and inlet opening) and I might be tempted to take that constipated rocking horse off your hands too.
Last edited by gennyshovel on Sun Jun 26, 2011 3:57 pm, edited 1 time in total.
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering
Postiebike Racing , created & funded by TwoBob Engineering
-
- Posts: 1315
- Joined: Tue Jul 05, 2005 11:23 pm
- Location: Right behind you Chief !
Re: 2008 engine build
Hey Tfer,
I tried calling you back yesterday but there was some woman minding your phone telling me to "leave a short ten second message and we will send it by text".....I was tempted to do what I do to Grumm and speak gibberish .......I 'll speak soon,
So , the direction change, enlighten us.
I tried calling you back yesterday but there was some woman minding your phone telling me to "leave a short ten second message and we will send it by text".....I was tempted to do what I do to Grumm and speak gibberish .......I 'll speak soon,
So , the direction change, enlighten us.
...few understand what I'm trying to do , but they vastly outnumber those who understand why..
Re: 2008 engine build
Dr Goggles wrote:Hey Tfer,
I tried calling you back yesterday but there was some woman minding your phone telling me to "leave a short ten second message and we will send it by text".....I was tempted to do what I do to Grumm and speak gibberish .......I 'll speak soon,
So , the direction change, enlighten us.
I just thought that was how you spoke
G
They make it
I make it work
I make it work