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according to this chart, for <strong>the</strong> 22R engine, <strong>the</strong> main venturis should be between 30mm & 34mm. <strong>the</strong> guy at Pierce told me that<br />
<strong>the</strong> <strong>32</strong>/36 can only flow about 140HP max. that's fine, with <strong>the</strong> cam profile I have, my numbers are as follows and this carb if<br />
properly setup should fall well within range:<br />
Toyota 22R 2.4L engine.<br />
22R (Carb), 2367 cc disp, 9.0:1 compression, 100 hp<br />
22R Header, CompCam 252s Cam, stock valves<br />
1000 RPM - 61.1 brake tq, 11.6 brake HP<br />
1450 RPM - 95.4, 26.3<br />
1900 RPM - 117, 42.5<br />
2350 RPM - 1<strong>32</strong>, 59.2<br />
2800 RPM - 142, 75.6<br />
<strong>32</strong>50 RPM - 149, 92.2 peak torque<br />
3700 RPM - 146, 103<br />
4150 RPM - 141, 111<br />
4650 RPM - 135, 119 peak HP<br />
5050 RPM - 123, 118<br />
so, that said, I'm waiting to hear back from Pierce on my <strong>the</strong>ory that 31mm & <strong>32</strong>mm venturis may be a better fit for this engine. I<br />
don't know what <strong>the</strong> maximum venturi size for <strong>the</strong> <strong>32</strong>/36 is, though, but I doubt <strong>the</strong> primary barrel can take a 31mm. maybe a 30,<br />
but that's still doubtful in my mind as well. for all I know, it might be maxed out at 26mm & 27mm.<br />
I'm curious to know now what <strong>the</strong> 38DGAS can take venturi wise.<br />
for anyone wondering what difference <strong>the</strong> venturi makes, it controls <strong>the</strong> amount of air that can flow through <strong>the</strong> carburetor. <strong>the</strong><br />
venturi is a sleeve placed inside <strong>the</strong> carb barrels that accelerates <strong>the</strong> mixture. I'm not up on <strong>the</strong> physics behind it, though. bottom<br />
line is selecting too small a venturi will give you good low end torque and better pickup, but will limit top end flow. too large a<br />
venturi will give good top end but low end torque will suffer. I need something middle of <strong>the</strong> road, hence <strong>the</strong> arrival at 31mm &<br />
<strong>32</strong>mm, maybe even just try 30mm & 31mm. with as small a dimension as we're talking here, I have to wonder just how much<br />
difference it can make.<br />
anyway, I'm pressing on with my tuning as configured for now, but jeez, it was nice to hear a "pro" tell me that <strong>the</strong> <strong>32</strong>/36 carb is a<br />
little small for a 2.4L engine and that <strong>the</strong> stock jetting as shipped is not correct for an engine this size. so I have to wonder, why in<br />
<strong>the</strong> hell is everyone selling <strong>the</strong> 22R kit with venturis that are too small and incorrect jetting?<br />
Sarge Re: <strong>Weber</strong> <strong>32</strong>/<strong>36DGV</strong> <strong>verses</strong> <strong>the</strong> <strong>Weber</strong> <strong>38DGES</strong><br />
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