Technical June 2011 Banger Meet, Any Questions?

[Piewagn]

My Pop painted the fan years ago when he zinged his hand, I had to do it the same when I did the car........

[Hapydz]

Pie; Your "Mill" looks great !
Ron

[Reddy]

Originally Posted by Piewagn

My Pop painted the fan years ago when he zinged his hand, I had to do it the same when I did the car........

Piewagn,
What head is that??
Mike

[hotrodfil]

Looks like a Lion head to me.

[Artiki]

Originally Posted by Crazydaddyo

When I had the engine out a few weeks ago, I swapped out the cam for one of Jim's 1R cams. I have been running 1/4" spacers under stock springs. I also replaced the 2 Stromberg 81's for two Stromberg 97's.

I reckon you've got more to come from that engine, Daddyo.
I ran a Brierley-1R, but with a Winfield 6-1 head and a single 97, plus larger intake valves, isky springs with spacers from Taylor, and my own porting of the inlet tracts, and ran a best of 17.3 @ 77mph. That was through 4.11 gears and a Volvo four-speed trans, with the T-touring body that Monkeybiker is currently attaching fenders to.

[tub in da dirt]

ok so it runs now
but how do i set up the carbs
if i retard the timing it idles low(still a little fast)
i advance the timing it revs to like a grand
never messed with strombergs before (only holleys)...let alone 2
i have a uni set (sinc)...
also the idle screws are completely closed
tk

[Crazydaddyo]

Set your timing at 0 to @ 8 deg. advanced at idle. (@ 600-700 rpm)

If your idle adjusting screws can't be backed off enough to get the idle speed where you want it, you will have to bend the bracket that the screw is in forward at the idle screw. I've done this with a light tap with a hammer and pin punch. Yes I know, hammers and carbs are bad, so take it easy.

Make sure your float levels are set @ 1/2" from the top of the float bowl edge.
Dry float setting is the top of the float is level when closed.

Next, disconnect the linkage that connects the two carbs.

Adjust the idle mixture screws. With a two Stromberg set up like this start by screwing in the screws until they stop and back them out @ 3/4 of a turn.

Start the engine.

As it is idling, adjust each screw IN until you notice the idle getting rough. then back it OUT until it soothes back out. Do this slow so that the engine has a chance to recover. Do each screw a couple of times until you get a feel that the idle is running smooth.

Now with the Unisink, adjust the idle screws until they both read the same flow. Start with the one that flows the most and back it down half the difference of the two readings. Then adjust the other up to match the reading of the first one. Keep doing this untill the carbs flow the same AND the idle is where you want it.

Now that they are flowing the same, connect the two carbs. Now take a flow reading with the Unisink and make sure they are reading the same. If not, then adjust the linkage that connects the two carbs so that they read the same as they did before you attached the linkage.

Now you are set. At this point, I like to back off one of the idle screws and check the flow again. If there is a change, then the linkage will have to be adjusted again. I do this because I like to run only one idle screw so that when I adjust the idle, I only need to adjust one screw.

I hope this helps.


.

[Bluto]

And make sure you've no intake leak!!

[tub in da dirt]

got it
printed it out
leaving early form, work to go give it hell...i have a race tomorrow
hunnert car heads up here i come
tk

Originally Posted by Crazydaddyo

Set your timing at 0 to @ 8 deg. advanced at idle. (@ 600-700 rpm)

If your idle adjusting screws can't be backed off enough to get the idle speed where you want it, you will have to bend the bracket that the screw is in forward at the idle screw. I've done this with a light tap with a hammer and pin punch. Yes I know, hammers and carbs are bad, so take it easy.

Make sure your float levels are set @ 1/2" from the top of the float bowl edge.
Dry float setting is the top of the float is level when closed.

Next, disconnect the linkage that connects the two carbs.

Adjust the idle mixture screws. With a two Stromberg set up like this start by screwing in the screws until they stop and back them out @ 3/4 of a turn.

Start the engine.

As it is idling, adjust each screw IN until you notice the idle getting rough. then back it OUT until it soothes back out. Do this slow so that the engine has a chance to recover. Do each screw a couple of times until you get a feel that the idle is running smooth.

Now with the Unisink, adjust the idle screws until they both read the same flow. Start with the one that flows the most and back it down half the difference of the two readings. Then adjust the other up to match the reading of the first one. Keep doing this untill the carbs flow the same AND the idle is where you want it.

Now that they are flowing the same, connect the two carbs. Now take a flow reading with the Unisink and make sure they are reading the same. If not, then adjust the linkage that connects the two carbs so that they read the same as they did before you attached the linkage.

Now you are set. At this point, I like to back off one of the idle screws and check the flow again. If there is a change, then the linkage will have to be adjusted again. I do this because I like to run only one idle screw so that when I adjust the idle, I only need to adjust one screw.

I hope this helps.


.

[Rex_A_Lott]

Questions about the FS ignitions:
Are you able to retain the manual spark advance? One of them looks like maybe you could, one probably not and one isnt really clear, from the pics on their website.
Do you find you miss being able to manually control the spark, or are you just happy with the straight centrifugal advance?
Any real good reason to switch over to the later style cap/wires?
Thanks

[Piewagn]

Originally Posted by Hapydz

Pie; Your "Mill" looks great !
Ron

Thanks Ron!!! She's a blast to drive!! I still want to go with 2 carbs instead of the 2 stage 2bbl when funds allow. I was actually pondering today on making my own intake. I wonder how 2 Rochesters will do........

[Piewagn]

Originally Posted by Reddy

Piewagn,
What head is that??
Mike

MB is correct Mike.....It's a Lion Speed Head III..... 7.5:1

[tub in da dirt]

ok CDO
i did it....i think
i am still running my stock a dizzy for this weekend. I put the spark lever all the way up. set it to about 8 deg (timing marks on the crank pulley) the car idels down and runs well. carbs flow the same on the unisink. pull the advance down and the rpms gain alot. no tach but from like 600-1200 with advancing the timing. Also it is pretty slugish off the bottom with the advance fully retarded. do i need to bump the timing, set the carbs again so they idle down. then see where i am at when advancing the timing with the lever
thanks
tk

[Crazydaddyo]

Without being there and see what it is doing, I'd check to see that the timing lever isn't making the throttle work too.

If you pull the timing lever down a third of the way down, does it leave better? if it does and it isn't knocking or pinging, then that would work for me. Run the lever full retard for starting, then run in more advanced when it is running. If I remember correctly, the lever will get you @ 40deg. or total timing.

What jets do you have in the carbs? I was running .035 jets.

Also as Jim mentioned, make sure there is no vacuum leak where the manifold bolts to the block and where the carbs mount to the Manifold.

It is tough to trouble shoot these thing with out being there.

.

[Bluto]

One more think about carb sync'n ...... Be sure that the carb's linkage is disconected! This way moving one throttle screw doesn't influance the other

AND sometimes the little red piston gets stuck in the tube

Now I am going to sit with a cup of tea and listen to Quick Silver and try to remember the 60's

[Just plain Bill]

Originally Posted by Bluto

One more think about carb sync'n ...... Be sure that the carb's linkage is disconected! This way moving one throttle screw doesn't influance the other

AND sometimes the little red piston gets stuck in the tube

Now I am going to sit with a cup of tea and listen to Quick Silver and try to remember the 60's

Earlier this week we watched the Dave Brubeck story. I sat with my beer and listened to Take Five, hard to beat cruisin' music from the 50's 60's. Damn, where have all the 8 tracks gone?

[Crazydaddyo]

Originally Posted by Just plain Bill

Earlier this week we watched the Dave Brubeck story. I sat with my beer and listened to Take Five,

Brubeck's "Take Five" is my favorite album of all time!!!!

.

[Bluto]

Have you heard his kid play that tune with the ol man?

[tub in da dirt]

well it ran a best of 20.32@62.51
it still needs tuning,header and a tach
tk

[Mac the Yankee]

Oh, the music teacher in me is LOVIN' this OT banter