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Sarge<br />
(carpal tunnel)<br />
Sun Nov 20 2005<br />
12:48 AM<br />
yodta<br />
(pooh bah)<br />
Sun Nov 20 2005<br />
01:10 AM<br />
Sarge<br />
(carpal tunnel)<br />
Sun Nov 20 2005<br />
11:31 AM<br />
Gnarly4X<br />
(carpal tunnel)<br />
Sun Nov 20 2005<br />
12:40 PM<br />
Sarge<br />
(carpal tunnel)<br />
Mon Nov 21 2005<br />
01:31 AM<br />
77celica<br />
(stranger)<br />
Mon Nov 28 2005<br />
06:30 AM<br />
let's have more info on <strong>the</strong> "kit" and jetting/tuning proposal.<br />
Re: <strong>Weber</strong> <strong>32</strong>/<strong>36DGV</strong> Tuning<br />
This will not be in kit form . Instead, a fully assembled and rtr unit. The intake and carb will be complete, from head gasket to air<br />
cleaner. It will be offered with <strong>the</strong> option of <strong>the</strong> efi throttle cable or <strong>the</strong> cable can be included. I plan to use a local truck for initial<br />
testing as soon as possible and jet tuning. Right now, trying to figure out <strong>the</strong> pricing...<br />
Sarge<br />
Re: <strong>Weber</strong> <strong>32</strong>/<strong>36DGV</strong> Tuning<br />
oh, so you're selling <strong>the</strong> kit you mean? I thought you were looking for someone to help you test & tune it. I'll just watch for now<br />
Re: <strong>Weber</strong> <strong>32</strong>/<strong>36DGV</strong> Tuning<br />
Once testing is finished, yes. Found a local running a 38DGAS for testing, right now it will blaze <strong>the</strong> Q's on it and want to see how<br />
<strong>the</strong> DCNF compares.<br />
Sarge<br />
Re: <strong>Weber</strong> <strong>32</strong>/<strong>36DGV</strong> Tuning<br />
Quote:<br />
Well, finally got caught up here . I think we just scored a new old stock 40DCNF , who is interested in trying this<br />
thing out??<br />
Sarge<br />
Hey Sarge, is this a newer carb? What is <strong>the</strong> objective here in testing this carb?... better street performance? better off-road<br />
performance? more power? better gas mileage? What cam profile do you invision? What is <strong>the</strong> condition and modifications to<br />
your test engine? What vehicle is being tested? Where and how is <strong>the</strong> vehicle being driven? Just curious.<br />
Gnarls.<br />
Re: <strong>Weber</strong> <strong>32</strong>/<strong>36DGV</strong> Tuning<br />
I'm waiting on <strong>the</strong> truck to arrive now, hopefully in <strong>the</strong> next week or so . The engine will be tested first for compression readings<br />
and such, supposedly it is all original with good compression and never rebuilt. Currently, it has a stock carb on it, I believe it's an<br />
'85 . The owner has a 38DGAS that will be installed first, <strong>the</strong>n testing begins . I want to compare all aspects with <strong>the</strong> 38DGAS<br />
since it will be <strong>the</strong> final installed unit. The 40DCNF will be tested when I'm done with <strong>the</strong> final work on <strong>the</strong> 38DGAS. Both are<br />
being built as ground-up units including <strong>the</strong> intake manifold which is being modified. Basically, just all extra crap is removed<br />
including <strong>the</strong> EGR and extra vacuum ports . I've already done one 38DGAS for a local guy , he can smoke <strong>the</strong> Q78's currently on<br />
<strong>the</strong> truck with stock gearing .<br />
The 40DCNF is an old school carb that is still made for sale. They are quite expensive but good used models can be had pretty<br />
reasonable. The biggest issues with any DGV series carb including <strong>the</strong> 38DGAS is <strong>the</strong> size and orientation of <strong>the</strong> float bowl.<br />
Aside from <strong>the</strong> bowl being so big, <strong>the</strong> way <strong>the</strong>y draw fuel and react with <strong>the</strong> float is bad for anything much over 35* . Some mods<br />
can be done to help, but none will cure <strong>the</strong> design of <strong>the</strong> bowl. Also, since <strong>the</strong>re is only <strong>the</strong> metal throttle shafts riding in <strong>the</strong><br />
aluminum bore, <strong>the</strong>re is <strong>the</strong> big issue of wear over time. The DCNF series ride on a ball bearing throttle shaft. The float bowl is<br />
very narrow and tall and can be modded for a vent extension easily. Overall installed height is nearly identical as well but <strong>the</strong>re<br />
are no shared parts between <strong>the</strong> two series , nei<strong>the</strong>r is <strong>the</strong> bolt pattern. The bug guys have been using <strong>the</strong>m for a very long time<br />
now as well as almost any of <strong>the</strong> older Euro sports cars including Ferrari . Also, <strong>the</strong> interior venturi's (chokes) can be easily<br />
changed for different engines/mods as well as access to <strong>the</strong> main jets without removing <strong>the</strong> top cover. Very simple, very effective<br />
carbs. I'm using an old 36DCNF on my own 1.6L and love it . Works very well on high angles and is very stable on <strong>the</strong> street .<br />
Fuel mileage is not very good overall, <strong>the</strong>se carbs are designed strictly for performance . Some have had pretty good results<br />
despite this, it just takes some jetting work to attain fuel mileage whereas it's pretty easy with a DGV . Sizes range from 36,40,42,<br />
and 44mm throats . There are also some variations that were setup for direct blow-through for turbos such as <strong>the</strong> 36DCNVH from<br />
<strong>the</strong> Maserati bi-turbo engines, a 4cyl. twin design that developed around 260bhp....<br />
Sarge<br />
Re: <strong>Weber</strong> <strong>32</strong>/<strong>36DGV</strong> Tuning<br />
I've got an elementary question. How do you know what size your jets are? I pulled <strong>the</strong> top off <strong>the</strong> <strong>38DGES</strong> I purchased (still not<br />
installed yet) and <strong>the</strong> air correction jets are both 180 <strong>the</strong> main jets don't seem to have markings on <strong>the</strong>m. How do I find out <strong>the</strong><br />
size? Is <strong>the</strong>re something I am overlooking. This carb came off a 73 landcruiser so I wanted to know what <strong>the</strong> jet sizes were<br />
before I installed it so I would know if I would start out at least in <strong>the</strong> ballpark.<br />
Any help is appreciated. Also if anyone has any tips on tuning a DG series carb I would appreciate it also. I already have <strong>the</strong><br />
weber idle adjustment procedure.<br />
Thanks<br />
Sarge Re: <strong>Weber</strong> <strong>32</strong>/<strong>36DGV</strong> Tuning<br />
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