2008 engine build

See cars and bikes being built for the salt

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Greg Watters
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Joined: Mon Sep 27, 2004 8:57 pm

Post by Greg Watters » Mon Mar 12, 2007 10:23 am

:shock: is that a cbr600 you have cut up?(or bigger??)Poor little gearbox
Can't wait to see it :D

ben james
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Location: melbourne

Post by ben james » Mon Mar 12, 2007 11:21 am

so tiny whats goin down, tell us a bit about it, very impressive.
wer'e such a bunch of geeks aren't we.
ben james dlra#389
moriwaki monster.

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gennyshovel
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Location: Broken Hill

Post by gennyshovel » Mon Mar 12, 2007 1:39 pm

2002 FZR600 head and barrel (resleeved UP)
2004 FZR 65.5mm piston
2002 FZR 'rod
XL125 bottom end, crank machined to take the 2002 FZR rod (wider,slipper bearing type)and its made friends with the bandsaw.
Plans include 20mm belt drive to turn cams/water pump(and look horney)
At the moment, capacity is 161cc, but if the lotto gods look kindly apon me,,I'll use a 2007 67.5mm piston, to pump it up to a healthy 174cc, but thats still a dream.
A new frame is on the planning table too, so as to make room for the 34mm flatslide downdraught carb, if I run gas,,or a 34mm alchohol and a 90 degree mainfold .
LOTS of oil pump headaches next, inc pressure relief valves, external o/h gear oilers,crankcase breathers and a squillion hrs of tig work.
2008 may be a tad optimistic, considering my major sponsor is centerlink these days.
85 MPH is the next goal
Tiny 8)
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering

hawkwind racing
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Post by hawkwind racing » Mon Mar 12, 2007 5:33 pm

8) bloody ripper ,thats a bit beyond my engineering skills , all power to ya :wink:
Gary
fastest busa in Captains flat pop. 200

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gennyshovel
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Post by gennyshovel » Sat Jul 21, 2007 7:37 pm

Another month goes down the gurgler, slow progress, but progress all the same.
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"cuse the artistic touchup.
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Tiny
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering

momec
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Post by momec » Sat Jul 21, 2007 10:49 pm

Arwsome Tiny So do you run super light weight valve springs or is that special string :lol:
Chris
Acme Racing #251

ben james
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Post by ben james » Sun Jul 22, 2007 10:29 am

i'd say it's kevlar
ben james dlra#389
moriwaki monster.

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Dr Goggles
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Location: Right behind you Chief !

Awesome

Post by Dr Goggles » Sun Jul 22, 2007 1:05 pm

Hey T'fer....the Colonel and I are shaking our heads in amazement, you're out of control!!!!!!!....nice work , is there anything he can't do??? :lol: :lol: jeez you know we're thinkin ' you'd struggle to fit that into a postie frame :wink:
...few understand what I'm trying to do , but they vastly outnumber those who understand why..

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BOB ELLIS
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Location: BRISBANE QLD , AUSTRALIA

Post by BOB ELLIS » Sun Jul 22, 2007 6:58 pm

Ask your self why ? and then ask WHY NOT! I've got a QA 50 (1971 Vintage) that i squeezed a CT90 motor into! Works fine . Cheers Bob , #66 C/GCC.

grumm441
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Length

Post by grumm441 » Sun Jul 22, 2007 7:06 pm

Yep
You will proably have to lenghen the frame
Say about four inches?
G

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gennyshovel
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Re: Length

Post by gennyshovel » Sun Jul 22, 2007 8:51 pm

grumm441 wrote:Yep
You will proably have to lenghen the frame
Say about four inches?
G

Yez grumm, how perceptive of ya mate,,but didn't ya notice that was already done for '06 setup when it was raked and the backbone streched
100mm ? :wink:
Chris & Ben,,its carefully woven fritz skin (Devon , A ) , and me mum's hard at it trying to make a megga strong 20mm wide one in time for '08 event.
Bob,,yep,,answer,,,'cos I can A ! :lol:
Tiny
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering

grumm441
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Raked

Post by grumm441 » Mon Jul 23, 2007 10:48 am

I did notice, but I didn't say anything
there are times when I have learned to keep my mouth shut

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gennyshovel
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Location: Broken Hill

Christmas in the shed

Post by gennyshovel » Tue Jan 01, 2008 11:01 am

Well, Christmas was good to me , things are progressing well with the Postie bike build , but looks like an '09 entry still for me.
I had a win with one of my original GayBay purchases, the cams read out soooo damn close to the Megacycle " factory race " cam specs they have.
Image
This pics just for you Animal.
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And one for Hawkwind.
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Low 'nuff yet ?
Image

Tiny
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering

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gennyshovel
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Post by gennyshovel » Mon Jan 28, 2008 4:57 pm

Well, some things never change,,,,,,forwards / backwards land still exists.
Today was going to be a HUGE step forward , 'cos it's time to test the oil flow / pressure with the new setup.
I set up an old VT250 honda starter motor (which luckilly spins anti clockwise)driving the oil pump shaft thru some rough looking rubber oil hose of varying sizes so as to match the oil pump shafts taco drive worm gear , and the starter motors drive gear.

The reason for this is to test the oiling without actually starting the engine

The whole thing hangs off the r/h side of the engine secured by a slab of 12mm alloy plate, bla bla bla,,,,
Test No1
oil oil everywhere, from the missing gear selector shaft's hole (oops !), and somewhere that @ 1st up seemed to be from the camshaft seals, but no,,it'd help if I remembered to attach the top end oil supply line to the head,,
Well the pump still works,,fiddle fiddle,
Test No2
bugger all oil pressure 5 / 10 psi (need 50 psi)
I blocked the various oil lines 1 at a time to narrow the losses in pressure untill getting to the last point of supply, the crank, still only 10 psi ?

Theres 1 of two things happening, 1 is the main bearing oil supply hole in the crank is a bit too big still, but also a possibility is the pump drive slipping, or the oil is frothing due to the pump spinning to fast , and going from zero to 1.200 revs in a millisecond ?
I'll block the crank supply next so theres nothing 'cept the bypass valve in the system and try again, after a blow for some lateral thinking (and to clean up 1 1/2 ltrs of oil from the shed floor)

Not the result I was expecting :(
Tiny
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering

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