Dry Lakes Racers Australia

This thread is a place to share pics of your mechanical misfortunes while striving too reach your goals on the gread white dyno
I'll start with Phil Cvirn's Nos toasted head

Then mine

I havnt pulled my pistons out yet but here's the plugs from my 750 meter run on track 2 (DNF) Mid range lean out on Methanol.



Dave

Edit. Cylinders off. No real surprises there.



Edit again. Some strange marks on the Good cylinder.

Tiny, that looks expensive.
Cheers Mossy

Dave, go 15-20% fatter,,,

Check out number two.....again

johno

NO its not last years pics, changed pistons, barrels, carbs, manifold, pulled timing back , dyynoed the jetting......walla same problem
I think I will get a hammer and smash the piece of crap ignition,
At least the old girl went down fighting this year, got the licencing all done so can focus on the record next year, expired accelerating at about 140 mph for the 150 mph record , so can sniff it.
ciao johno

Stayt`ie wrote:Dave, go 15-20% fatter,,,

I don't think he wants me to ride his bike Ronnie ?

your a funny bugger Tiny, , sorry i missed havin a yack with ya again this year,,,

Stayt`ie wrote:Dave, go 15-20% fatter,,,

I think the mains are OK, didnt get to run on them, it was the mid range, but yep needs to be much fatter. Ive drilled out my needle jets another 0.5mm and am going to get a flat machined on the needles. And get it dynoed before its next run.

Tiny, you can take it for a spin any time. Ya never know ya might like it. 2 smokers I mean. Hang on didnt ya have one in a previous life? Come back to the dark side.

Juhno, that sux. There's room for you over here too.
Dave

Dave,
What oil do you use and what ratio?

Bones

Here is one of the reasons I did not attend speed week this year. Appears that sometimes when starting the guide arm gets thrown back catching the lock up clutch and breaking all the spring mounting points letting the lock up wander freely to wreck a little damage ....happened twice and no parts left......Going to attempt to work out a remote start method ....any ideas???

Broke the start chain and striped the sprocket second time

BONES wrote:Dave,
What oil do you use and what ratio?

Bones

Hey Bones. Shell Racing M @ 20:1 as well as the pump set at 50%

Ive found an air leak at the base gasket of the most damaged cylinder, so that explains the difference between the EGT readings.

From what ive learnt since, Methanol likes to have load on it all the time, no light throttle and or load. I had both when it went.

Ill give it another try next year and wont spare the HP.

Dave