My Bay

[Barry]

You memory is good. 
I had the 123+ Tune on it before and Steve moved it over. 

Been watching to Bluetooth-ing info as I drive home. 

Only down side is we are coming home the coast road and it’s bloody hard to get off it. 
Not like Thunderbolt Way

[rstucke]

You memory is good. 
I had the 123+ Tune on it before and Steve moved it over. 

Been watching to Bluetooth-ing info as I drive home. 

Only down side is we are coming home the coast road and it’s bloody hard to get off it. 
Not like Thunderbolt Way

Hi Barry
If you have the dyno sheets, any chance of putting them up here?
Do you know which cam went in?
I'm really interested to see the power and torque curves.

[Barry]

Rick
Cam is a Scat C25
Steve spent a fair bit of time getting the cam gear right with “+2” or a “+3” gear

Compression was set at 8:0 - 1

Carburettors are Spanish Weber IDF’s

Jetting is
Vents 28
Airs.   Need to check but guessing 200’s
Mains 120
Idles.  47.5
Emulsion F7 (I think)
If F11 is the common one it’s F7. Could be the other way around. I’m checking. 

I was surprised that it wanted 28 vents. 
Steve started with 32’s, which is where I thought it should have been. 
That is where my 1916 was. 
Anyway - at the end of a lond day at the dyno it ended up with the above jetting. 

Steve reckons there is a tiny bit of lag in the idle/main transition but I can’t notice it.

[rstucke]

Rick
Cam is a Scat C25
Steve spent a fair bit of time getting the cam gear right with “+2” or a “+3” gear

Compression was set at 8:0 - 1

Carburettors are Spanish Weber IDF’s

Jetting is
Vents 28
Airs.   Need to check but guessing 200’s
Mains 120
Idles.  47.5
Emulsion F7 (I think)
If F11 is the common one it’s F7. Could be the other way around. I’m checking. 

I was surprised that it wanted 28 vents. 
Steve started with 32’s, which is where I thought it should have been. 
That is where my 1916 was. 
Anyway - at the end of a lond day at the dyno it ended up with the above jetting. 

Steve reckons there is a tiny bit of lag in the idle/main transition but I can’t notice it.

So by the carby specs it's a 2 ltr?
The engine in Blitz at the moment was pretty much the same
c25 cam
40 idf's Spanish
115 mains
28 vents
120 airs
47.5 idles
can't remember the f number either (check it tomorrow)
Went to 44 with 32 vents and all the adjusting for jets, don't like them and putting the 40's back when I swap the engines. The 44's should be good for the 2.4 ltr that's going in (made a mistake calling it a 2.3 earlier)

A trick to work out if a flat spot is caused by the transition between idle and main jet flowing
disconnect acc pump
remove the jet tree
connect tacho
drive with slow throttle increase
note rpm which it dies (around 2100rpm)
replace tree
re drive, note when the power kicks in after the flat spot
you now need to determine if it's a lean out or the main is coming in to early and over fueling
going up or down by 20 on the air jet should show up which is which and fix
don't forget to reconnect the accelerator pumps
adjust screw in for less squirt, or out for more.

[Oldman]

You memory is good. 
I had the 123+ Tune on it before and Steve moved it over. 

Been watching to Bluetooth-ing info as I drive home. 

Only down side is we are coming home the coast road and it’s bloody hard to get off it. 
Not like Thunderbolt Way

So, is the 123 going back in ?
If it’s excess to your needs, I’m interested 

[rstucke]

So, is the 123 going back in ?
If it’s excess to your needs, I’m interested 

I've got a 123
excellent ignition system
but you can't specify advance on each cylinder like mentioned on another thread (-4deg on no3 which isn't necessary unless you have a vacuum only distributor advance or stationary motor without heater boxes)
it does have spark balancing for cylinders that have higher and lower compression 
every vdub should have one

[Barry]

So, is the 123 going back in ?
If it’s excess to your needs, I’m interested 

No - it went back in

[Barry]

Yes - mine is a “stock” 2L bore and stroke. 
Heads have a 5 angle grind. 
No port work. 

Coming home going south up Mooney Mooney bridge I can sit on 110km per hr in 4th no problem. 
Same going up the hill after Hawkesbury Bridge

When you first mentioned your jetting I was surprised as it is nothing like what my Dellorto DRLA 40’s dialled in on my Type 1 1916

Vents.  32
Mains.  130’s
Idles.    60 - but this is where Dells and Webers differ

So when mine came back with 28’s - I just thought “ well, there you go”
Learned something new (again)

[Barry]

Always loved those stickers in Brick Lane and the like. 
Finally found some cool n eBay 

   

[Ian.j]

Always loved those stickers in Brick Lane and the like. 
Finally found some cool n eBay 

Hi if possible do you know where I can get a panel for this radio AWA believe it is a 1972 from the serial number, pictures posted I think.