Dual Webers fine tuned

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72Hardtop
Old School!
Location: Seattle, WA./HB. Ca./Shizuoka, Japan
Status: Offline

Re: Dual Webers fine tuned

Post by 72Hardtop » Thu Oct 10, 2019 4:56 pm

Decided to install some BP6ES NGK plugs today. These (B5ES) are the ones I replaced after 2624 miles on them.
20191010_161259[1].jpg
20191010_161259[1].jpg (2.18 MiB) Viewed 4794 times
Anyone know why it posts upside down but if I right click it and select open image it shows upright?

That is with the jetting in my previous post. At idle it's high 13-14 AFR and cruise it will range from 15-16.5

The BP6ES plugs will help with the leaner burn scenario at cruise and the tip protrudes a bit into the chamber.
1972 Westy tintop
2056cc T-4 - 7.8:1 CR
Weber 40mm Duals - 47.5idles, 125mains, F11 tubes, 190 Air corr., 28mm Vents
96mm AA Biral P/C's w/Hastings rings
42x36mm Heads (AMC- Headflow Masters) w/Porsche swivel adjusters
71mm Stroke
Web Cam 73 w/matched Web lifters
S&S 4-1 exhaust w/Walker 17862 quiet-pack
Pertronix SVDA w/Pertronix module & Flamethrower 40K coil (7* initial 28* total @3200+)
NGK BP6ET plugs
002 3 rib trans
Hankook 185R14's

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Amskeptic
IAC "Help Desk"
IAC "Help Desk"
Status: Offline

Re: Dual Webers fine tuned

Post by Amskeptic » Thu Oct 10, 2019 5:27 pm

72Hardtop wrote:
Thu Oct 10, 2019 4:56 pm
Decided to install some BP6ES NGK plugs today. These (B5ES) are the ones I replaced after 2624 miles on them.

Anyone know why it posts upside down but if I right click it and select open image it shows upright?

That is with the jetting in my previous post. At idle it's high 13-14 AFR and cruise it will range from 15-16.5

The BP6ES plugs will help with the leaner burn scenario at cruise and the tip protrudes a bit into the chamber.
Flush your cookies and see if it is correct.

Hotter plugs will help the leaner burn scenario in what way?
Colin
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles

72Hardtop
Old School!
Location: Seattle, WA./HB. Ca./Shizuoka, Japan
Status: Offline

Re: Dual Webers fine tuned

Post by 72Hardtop » Thu Oct 10, 2019 10:02 pm

Amskeptic wrote:
Thu Oct 10, 2019 5:27 pm
72Hardtop wrote:
Thu Oct 10, 2019 4:56 pm
Decided to install some BP6ES NGK plugs today. These (B5ES) are the ones I replaced after 2624 miles on them.

Anyone know why it posts upside down but if I right click it and select open image it shows upright?

That is with the jetting in my previous post. At idle it's high 13-14 AFR and cruise it will range from 15-16.5

The BP6ES plugs will help with the leaner burn scenario at cruise and the tip protrudes a bit into the chamber.
Flush your cookies and see if it is correct.

Hotter plugs will help the leaner burn scenario in what way?
Colin
A 6 (NGK) will be 1 step cooler. The triple electrode does not shroud the center of the plug in the same way a B5ES or W8CC does. It also protrudes into the chamber better.

I emptied the cookie cache but same results.
1972 Westy tintop
2056cc T-4 - 7.8:1 CR
Weber 40mm Duals - 47.5idles, 125mains, F11 tubes, 190 Air corr., 28mm Vents
96mm AA Biral P/C's w/Hastings rings
42x36mm Heads (AMC- Headflow Masters) w/Porsche swivel adjusters
71mm Stroke
Web Cam 73 w/matched Web lifters
S&S 4-1 exhaust w/Walker 17862 quiet-pack
Pertronix SVDA w/Pertronix module & Flamethrower 40K coil (7* initial 28* total @3200+)
NGK BP6ET plugs
002 3 rib trans
Hankook 185R14's

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