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motown intake sbc

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motown intake sbc

Postby fast79z » Tue Jan 19, 2010 3:25 pm

anybody run this intake on a real street car, its gonna be on a heavy 79z28, just wondering if it really has any low end torque on a 355,its a #061040
http://www.worldcastings.com/products/m ... folds.html
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Re: motown intake sbc

Postby af2 » Tue Jan 19, 2010 4:15 pm

fast79z wrote:anybody run this intake on a real street car, its gonna be on a heavy 79z28, just wondering if it really has any low end torque on a 355,its a #061040
http://www.worldcastings.com/products/m ... folds.html


That is a tough one.
You have not given any info but a 355????
GURU is only a name.
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Postby fast79z » Tue Jan 19, 2010 5:11 pm

355 sbc
10.5:1
6" rod
comp solid STREET roller 242/248 579/585 108lsa
afr 195 COMP eliminators
quick fuel 750 anular q series carb
hooker 1.3/4 super comps
yank 3500 stall
373 gear
325/50/15 drag radial
heavy 79 z28
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Postby SMITHBERGRACING » Tue Jan 19, 2010 6:14 pm

You would be better off with a Victor Jr or RPM Air Gap for your combo.
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Postby T » Tue Jan 19, 2010 7:44 pm

X2 RPM Air Gap
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Postby fast79z » Tue Jan 19, 2010 8:05 pm

what kind of work could be done to the rpm air gap to kinda keep up to the comp eliminators
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Postby af2 » Tue Jan 19, 2010 8:17 pm

fast79z wrote:355 sbc
10.5:1
6" rod
comp solid STREET roller 242/248 579/585 108lsa
afr 195 COMP eliminators
quick fuel 750 anular q series carb
hooker 1.3/4 super comps
yank 3500 stall
373 gear
325/50/15 drag radial
heavy 79 z28


Dan, What does low end mean to you? Not beeing a smart arse just wondering with the combo you posted?
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Postby fast79z » Tue Jan 19, 2010 8:21 pm

just if im rollin along slow and step on it its there,instantly, dont wanna loose to an import and usually running slow when they sneak up on you,just dont want the 3700lb sled to be to lazy
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Postby jmarkaudio » Tue Jan 19, 2010 8:55 pm

Look for a good used Victor Jr. Save the extra money for other needs. For what you want it will be plenty responsive, and may give up only a little peak HP if you go past around 6500 RPM.
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Postby DeltaT » Wed Jan 20, 2010 8:27 pm

For your motor size and car weight I would look at getting the RPM Air Gap ported for the most useable power.

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Postby fast79z » Wed Jan 20, 2010 8:37 pm

was just wondering that myself, been on the phone with a few people,that can do some work on it to pull[make power] to 68-7000, that would be fine, its very important to keep the throttle response really crisp thats` why i didnt want a ton of duration on the cam,trying to have my cake and eat it too!
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Postby sbchevy1 » Wed Jan 20, 2010 8:49 pm

Rpm Air Gap
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Postby fast79z » Wed Jan 20, 2010 9:03 pm

sbchevy1 wrote:Rpm Air Gap

11.0 with a 355,whats youre combo if you dont mind me asking
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Motown Intake

Postby Big Speed » Fri Jan 22, 2010 6:20 pm

We have had good results with Motown on 400-434 cu-in. On a street ,low comp 355 in a heavy car a RPM air gap or a small single plane would be a better choice.We have a customer with a 10.0 cr 406 in a 67 chevelle at 3500# it has run 10.77 with 93 octane and the motown manifold.Bill C.
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Postby sbchevy1 » Fri Jan 22, 2010 9:23 pm

that particular 355 was 6 inch rod je forged pistons about 11.5 to 1 comp afr 195 heads from 1998 vintage, baby solid roller 236 at 50 640 lift with 1.6 roller rockers it was in my 85 vette so it was a fuel injected by way of a converted sigle plane intake thst was a brodix hv1001 with a 1300 cfm mono blade throtle body 24 lb injectors i shifted at 7200 rpm the car weghed with me in ti 3350 lbit had a 700 r4 trans and a 10 inch converter with only 3.54 gears its best was a 10.79 but let me say this on a fuel injection car you can not over manifold or throtle body it is because the injectors are shooting fuel directly at the valves
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