jfats808
Samba Member
Joined: December 10, 2007
Posts: 5022
Location: oahu hawaii
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 Posted: Tue Feb 24, 2015 11:40 pm Post subject: |
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No matter what the jetting is, the engine will let you know what it wants and needs. You just have to invest time into it, pay attention and be patient. What i do and this has worked exceedingly well for me is jet it baseline to formula : idles intake valve x 1.5, main is 4 x vent size ( id use a modifier of 4.1 for your 2.0), and 180 air. I note operational characteristics and compare to a handful of personal parameters i rate jetting on according to response and performance. Then i start jetting down. Working on idle circuit first, then compare transition and then jet mains. I compare plug readings along the way and in the end, i jet to get best performance and best mpg.
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2276 IDA's 86C 11-1 DD !
2017 48 Trijet DRLA's W125
| Rockstar Suzuki wrote: |
You might as well put 10 year build in your bullshit sig, as it will NEVER run. Also your a dick |
You can always learn something new, even from a fool.
Check your oil levels routinely! |
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udidwht
Samba Member
Joined: March 06, 2005
Posts: 3779
Location: Seattle, WA./ HB, Ca./ Shizuoka, Japan
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| Posted: Wed Feb 25, 2015 3:45 pm Post subject: |
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| [email protected] wrote: |
Joe,
then tell me why 17:1 runs cooler than 13:1 A/F? Since lean is so hot of course....... And 18:1 is cooler still...... |
EGT's
In a light ACVW one can get away with a leaner burn (under load or WOT). In a bus that's a different story.
Define pig rich? I'll give one a hint...it isn't 13:1
Max power is ~ 12.5 AFR
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1972 Westy Hardtop/Type-4 2056cc
96mm Biral AA P/C's~7.8:1CR
Headflow Masters New AMC 42x36mm heads w/Porsche swivel adjusters
71mm Stroke
73 Web Cam w/Web solids
Dual 40mm IDF Webers - LM-2 - 47.5 idles/125 mains/190 air corr./F11 tubes/28mm Vents - Float height 10.45mm/Drop 32mm
Bosch SVDA w/Pertronix module (7.5 initial 28 total @ 3400rpm)
Bosch W8CC plugs
Pertronix Flamethrower 40K coil
S&S 4-1 w/Walker QP 17862
3 rib 002 Trans
185R14 Hankook tires |
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