2008 engine build

See cars and bikes being built for the salt

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hawkwind racing
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Post by hawkwind racing »

All we need now is a venue :D nice one big fella
fastest busa in Captains flat pop. 200
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BONES
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2008 engine build

Post by BONES »

Nice job Tiny. I'll look forward to hearing it screeeem down tht salt at over13000 rpm.What type of fuel pump are you useing ? If you use a pump from a late model bike with carbs you will not need a pressure regulator.When I used a facet pump on the sidecar I set it up with a return to the tank which is restricted to change pressure.To check the pressure a T in the return and set for 18'' above the carb.
cheers Bones
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gennyshovel
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Post by gennyshovel »

Bones, the pump is a "wotyagot" facet automotive (NZ) with a holley regulator (adjustable) behind it, I had done what you suggested and run a Tee in the line, returning to the tank, and it seems to work.
The problem in in the fuel valve (needle and seat) orifice size, which it 3.5mm, totally unsuitable for a pump setup, I see Mikuni list a 1.5 fuel jet, which would "probably" work, but @ $50,,I recon I'll stick with the setup I have for now.

Well, test ride #1 happened as planned this morning, complete with midrange stutter, but a main jet drop helped, so much in fact, she pulled 10g in 4th (the top gear of choice, with a slight overdrive 5th left to "see") which , according to the tach, and gear ratios, is a bees donga over 70 MPH !
Video evidence will be posted when the naked hoop jump is edited out :shock:
Ill take a close peek at the workin's before test #2, then try a needle drop, and maybe down to a 150 main, when I can bludge one from fraze.

Arfa toughy Tiny
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering
Rocket
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Post by Rocket »

Looking forward to the vid (just make sure you do a good job :roll: we don't need to see anything that will ruin a new year :shock: :wink: :lol: :lol: )
CHEERS,
Rod. #811

www.rodsandrelics.com.au
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gennyshovel
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Post by gennyshovel »

Here it is , the result of two years hard yakka.
http://s156.photobucket.com/albums/t24/ ... 1strun.flv
Even this video clip was a difficult project in itself, 1st up, I didnt have a drivers to open it, then lacked a program to edit it,,,oh well, it's only money,,,,,,,,,,,,,,
Happy new year :D
Tiny
Last edited by gennyshovel on Sat Jan 03, 2009 11:36 am, edited 1 time in total.
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering
Rocket
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Post by Rocket »

Yahoo !!

Well done Tiny (& a few on lookers too!)

'Sounds' like you've sorted most of teething the probs you've had :D
CHEERS,
Rod. #811

www.rodsandrelics.com.au
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gennyshovel
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Post by gennyshovel »

Thanks Rocket,,I still have to address the mid range jetting, and adjust the belt idler to pull the belt over a tad, replace the temp gear linkage (alloy) with some stainless tubing, and finish the bodywork, time permitting.
Tiny
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering
momec
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Post by momec »

So cool Tiny 8)
Sounds great
Chris
Acme Racing #251
ben james
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Post by ben james »

sounds great from behind tiny, looks like it's got some stick
ben james dlra#389
moriwaki monster.
Rob
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Post by Rob »

Good stuff Tiny,

I had to look twice, I thought the ute had blue lights and a different sign on the door :shock:

Happy New Year,
Rob
I owe, I owe, so off to work I go.
colinjay
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Post by colinjay »

Congrat's Tiny, It was good to see yo had a good turn out for the first run. I would have liked to have been there to see all your efforts made good.

CJ
hawkwind racing
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Post by hawkwind racing »

mmmmm handles well does it Tiny :o hope to see you and the beast on the salt soon :D
cheers
fastest busa in Captains flat pop. 200
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gennyshovel
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Post by gennyshovel »

Test #2 was a success :D the shortened meggy cone has shifted the power up in the rev range nicely, "short" changed @ 11g and it still wanted more, so slipped into top (.92 \ 1 overdrive) and still accelerated , not briskly,,but it was pulling 10g when I run out of road,,,,,,82 mph :D :D :D :D :D
The smell of R-30 laced Methanol wafted thru the hills, almost transporting me to lake G for a while 8)
Tiny
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering
Dr Goggles
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Location: Right behind you Chief !

high G's

Post by Dr Goggles »

gennyshovel wrote:but it was pulling 10g when I run out of road
Tiny


Gee whiz !0G's.....that's some serious accelleration T'fer :D :D
...few understand what I'm trying to do , but they vastly outnumber those who understand why..
PJQ2
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Post by PJQ2 »

..ah, stop it!
only 3 weeks and we'll all be smokin' those fumes.

Tiny, usual crowd from Silverton for this year?
Besides "Hypothetical" Postie and the stretch-monster, any new runners. Chris finish that small bike for the boy?
Regs,
PJQ
Velocity Science Laboratories
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