she won't start now

[5speed]

ribbert..if not for the lack of smart phones you would be youtube famous.
my first real experience on a motorbike was on the back of a friends 74 RD350. I think we spent as much time on the back wheel as we did on both. 

[giantkiller]

Yeah. His was pretty maxed out. He had drag bars on it. Still came right up.

Like  the dead head sticker on that one.
Perfect.

Hope to get back to the turbo bike. Soon. The paperwork that came with the R&B turbo kit said that the carb jetting and waste gate. Shood put out right at 200hp on pump gas. A fellow that does the  tuning ona turbo sled in town.  Said with today's sensors and controls. Should be able to get it up to around 230ish hp Safely. Can't wait to have the front end get light at150mph.

[Pat Conlon]

.....The fuel supply was a clever pressurised system similar to that used in the early FJ's.

Tell me more about the early FJ pressurized fuel system.....

[5speed]

Yeah. His was pretty maxed out. He had drag bars on it. Still came right up.

Like  the dead head sticker on that one.
Perfect.

Hope to get back to the turbo bike. Soon. The paperwork that came with the R&B turbo kit said that the carb jetting and waste gate. Shood put out right at 200hp on pump gas. A fellow that does the  tuning ona turbo sled in town.  Said with today's sensors and controls. Should be able to get it up to around 230ish hp Safely. Can't wait to have the front end get light at150mph.

is the a thread on the turbo build here?
BTW..love the seat on your bike. Is it factory or after market?

[giantkiller]

It's an old Corbin gunfighter. I had to have recovered.

Like all my other fun stuff. It came to a stop when I started the house...obsession

[ribbert]

Tell me more about the early FJ pressurized fuel system.....

It's funny Pat, on a number of occasions you've sought to publicly ridicule me by saying I don't understand how gravity works, specifically in the context of fuel flow, even though you know that to be untrue and knowing full well it's my trade, and yet, here you are asking me to explain it to you.

Weird huh?

Does a delivery pressure of 14.7 psi at the carbies sound familiar?

Noel

[Pat Conlon]

Tell me more about the early FJ pressurized fuel system.....

Does a delivery pressure of 14.7 psi at the carbies sound familiar?

Noel

I'm familiar with that number as air pressure at sea level, but not for fuel "delivery pressure" in a FJ  gravity flow system......you sure you got that right Noel......or are you are just trolling?

A 33ft column of water is one atm, or 14.7 psi, one foot height of water generates a pressure of 14.7/33, or 0.44 psi pressure. Gasoline @ .75 the density of water, then at a height of 1 foot above the carb (full tank) would genertate a maximum pressure (not accounting for system flow resistance**) of (0.44)(0.75), or 0.33 psi at the carb inlet. If you reduced that distance down to 4" assuming 1/4 tank fuel level, it would then be less pressure (0.44)(0.33)(0.75) or 0.10 psi

Is this the fuel delivery pressure you are referring to?  1/10th of a pound per square inch?

Wow, that's not very much, huh?

*** Factor in system flow resistance and it wouldn't take much to impede that flow would it? (Hint)

So, now that we understand about fuel line pressure (at sea level) let's reduce that pressure to account for elevation....say at 5,000 ft what would be the atmospheric pressure? (12.2 psi) so that means the fuel line pressure would be further reduced by 12%

So now our fuel line pressure with 1/4 tank at 5,000' is only 0.09 of a pound per sq.inch.

It's funny Pat, on a number of occasions you've sought to publicly ridicule me by saying I don't understand how gravity works, specifically in the context of fuel flow, even though you know that to be untrue and knowing full well it's my trade....

Ok, Noel, you're a smart guy being in the trade and all....please help me with your answers to the following:
Now that the fuel line pressure is understood (correct?) let's talk about fuel flow...specifically:

Using the above fuel line pressures, (0.09 psi)
1) What's the fuel flow of a 1/4" ID fuel line 12" long?
2) What's the fuel flow of a 10mm ID fuel line 12" long?

Now let's see what the carbs need to feed our FJ engines.
Using a air/fuel ratio of 12 to 1 with a 1200cc FJ air pump spinning at 9,000 rpm with a 120hp power output (WFO) what is the flow needed to each carb, and the total flow needed from the single fuel line leaving the petcock?
At sea level?  At altitude? (5000 MSL)

Don't help guys....let's see what Noel comes up with, after all, he opened the door.

....or maybe he was just trolling after all.

[5speed]

It's an old Corbin gunfighter. I had to have recovered.

Like all my other fun stuff. It came to a stop when I started the house...obsession

always liked the gunfighter..now I have another reason to.
ETA..is it a factory one for fj's or did you have to modify it?
I was just on the corbin site playing with design's and colours and it doesn't show the gun fighter listed for fj's.
these are the 2 I came up with.

[5speed]

Not sure if these models will fit an fj but they look sharp imho
First one is the back half of the seat above and is listed as sport touring.
Second one is the gunfight and lady model.
bottom one is the Wall.

[5speed]

and the gunfighter and lady in 2 difference styles

[giantkiller]

I don't think they make them for the fjs anymore.  But they do show up on fleabay. Quite often. But usually need recovering. I have a lady N gunfighter on my 89. It was leather. But the leather had hardened up so much I had it recovered with regular seat covering.

[5speed]

I don't think they make them for the fjs anymore.  But they do show up on fleabay. Quite often. But usually need recovering. I have a lady N gunfighter on my 89. It was leather. But the leather had hardened up so much I had it recovered with regular seat covering.

I sent them an e-mail to check and see. They still have the gunfighter and lady model listed..which means they still have seat pans..fingers crossed.

[ribbert]

......you sure you got that right Noel......

Yes

[Pat Conlon]

......you sure you got that right Noel......

Yes

Lazy answer, no cookie for you...

[ribbert]

......you sure you got that right Noel......

Yes

Lazy answer, no cookie for you...

You've just gotta keep niggling haven't you.

Well, you're wrong, I wrote 1000 word response, I just didn't post it.

You should be grateful! This makes twice in two days I've let you off.

Noel