Weber 32/36DGV verses the Weber 38DGES

(pooh bah)
Mon Mar 21 2005
12:26 PM
JEFFB
(addict)
Mon Mar 21 2005
02:56 PM
yodta
(pooh bah)
Mon Mar 21 2005
05:25 PM
Sarge
(carpal tunnel)
Tue Mar 22 2005
02:27 AM
Gnarly4X
(carpal tunnel)
Tue Mar 22 2005
03:47 AM
Sarge
(carpal tunnel)
Tue Mar 22 2005
03:57 AM
yodta
(pooh bah)
Tue Mar 22 2005
12:19 PM
Re: Weber 32/36DGV verses the Weber 38DGES
I have a three wire, unless the 12v (hot) or ground is not making connection !
Re: Weber 32/36DGV verses the Weber 38DGES
your gauge behavior sounds about normal for these cheapie aftermarket gauges. I was talking to the guy who does my machine
work a couple of years ago about this when I was having a really tough time getting my truck tuned correctly. he's got a dyno at
the shop and we were talking about getting the webers tuned and how he connects an A/F gauge to the exhausts to bring data
into the dyno. his dyno reads A/F ratios off of a sensor that threads into the O2 bung as well, only it's a lot more accurate than the
setups we use for under $100 by the time we're done. he says those gauges are okay for ballpark tuning, but can only be but so
accurate with their limited displays.
Re: Weber 32/36DGV verses the Weber 38DGES
The top picture is of two very interesting carbs . The older looking one is a 40DCNF12 from a Ferrari 308 . The new old stock one
next to it is a 36DCNF38 , the 38 designation gives it the vacuum advance like the 36DCNVA . I made a few calls today , the
36DCNF38 is an old school carb and is no longer available except for rare Ebay ones like I scored a few weeks ago . Too bad,
those things rock and are worth a pretty fair penny. The 36DCNVA is currently available, all stock is true Italian Webers to boot .
Best part is , they are actually cheaper than the 32/36DGV's at current pricing . Bad part is , I have to make the adapters and
linkage setups for them from scratch . Once I get the templates made it's no big deal, just a bit of a pia...
The O2 sensors and those A/F meters are just what they are intended for, a ballpark idea of fuel curve and jetting. At least once a
week I have to argue the point of this with a customer, they keep an eye on that guage and trust it like Gospel . They are merely a
tuning tool and not accurate enough to trust to a high extent . Most times they are nice when you effectively get "lost" in jetting not
knowing if the carb is lean or rich in a given range . Then you have a better idea of where to go from there . I just tune them to
plug color, fuel mileage, power, and driveability . Hasn't failed me in the last 20yrs.....
Sarge
BTW, the Ramflo order went in today including one special red 1000cfm DGV , should be here at the end of the week or so .
Re: Weber 32/36DGV verses the Weber 38DGES
Quote:
... Most times they are nice when you effectively get "lost" in jetting not knowing if the carb is lean or rich in a given
range . Then you have a better idea of where to go from there . I just tune them to plug color, fuel mileage, power,
and driveability . Hasn't failed me in the last 20yrs.....
Sarge,
Have you noticed any difference in "plug color" with today's fuel? We have methanol-blend added twice a year here in AZ. Just
curious.
Gnarls.
Re: Weber 32/36DGV verses the Weber 38DGES
Plug colors can vary by region as well as climate. Most of the time a nice light reddish tan is perfect. Some areas the tan shows
up more as almost brown and some come up with a weird gray. As long as there's no white ash and driveability/throttle response
is where it should be. I've had to re-jet 4 times in the last 2 months due to breaking a new engine in , up to 145's now on the
38DGAS....
Sarge
Re: Weber 32/36DGV verses the Weber 38DGES
woohoo, new air filter! thanks man. let me know how much it'll be with shipping to 23462!
yeah, I'm with ya on the A/F meter. I think I've done better on my jetting attempts not having that thing hooked up right now
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