Originally posted by Dave96z34
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custom intake manifold
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68 El camino 454 speed muncie 3.90 posi 12 bolt,
80 Monza Spyder nasty buick 231/3.8l v6 200-4R 3.73 posi.
60 Impala 2 door hardtop L79-327 T56 4.11 posi.
83 wagoneer torque pig AMC 360 hydradrive (gm turbo 400 with stock sb chrysler bellhousing boltpattern) dana 20 transfer case dana 60 front GM 14 bolt rear. 401 in the wokrs
91 Z34 now has a hm284. and belly pan in the works
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Settle down guys. Did you guys even see my thread or my dyno post? I cut my manifold about the same as his when I made my custom intake. My torque peak is at 4800 RPM. I have 200+ wheel ft-lbs from 2200 RPM to 5750 RPM. HP peak at 5800 RPM. This is with stock cam timing. You can't argue much with real world results.
Pics here:
Dyno graph here:
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thing that makes runing the manifold to the front hard is you would need to custom make a new flange and pretty much make an entire upper from scratch
these designs are still custom but use the original flange and some of the runer... these are the harder/expensive parts of building a custom upper.
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Originally posted by Dave96z34 View PostThat graph is not vary blanced.
The torque is between 200 and 220 ft lbs at the wheels from 2200 rpm to 5800 rpm.
Also note that all those torque dips are on the stock motor as well. This intake dominates the stock manifold.Last edited by series8217; 01-27-2008, 06:43 AM.
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Originally posted by d.o.h.c View PostLooks perrrrrty though. Who makes these. How much?
It's not very hard if you have access to a TIG welder and a good bandsaw. I don't think you could farm it out to some random shop without them charging you mucho $$$ though. It takes a lot of time to get the pieces to fit right, then do all the little things like adding the vacuum fittings on the bottom and whatnot..
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