1 barrel blow through carb
- Thread starter Slant Six Bumblebee
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pishta
I know I'm right....
Get 2 and a Flying toilet. you could probably blow through that but it would take some work, better to draw through: Mount compressor to top of slant intake with an adapter plate or thread (?) that to a tapped intake hole Bolt it up and make an other adapter plate for the carb on top. Your pulling through the carb so it will feel larger than it is and your intake will be force inducted so your hole is not going to make much of a difference. you may get 5 psi out of that but remember our motors are 3.7L and that blower is sized for a 1-2.0. If you lower the pulley diameter and overdrive it, it will over heat the air, not real good for power. If you drive it as is it wont produce alot of boost. Blowing through a draw through carb is alot of mods to the bleeds, accelerator pump and other stuff as well as boost referencing the fuel pump as the bowl will be pressurized further screwing up the boosters. I'd draw through it on that 1bbl. A Rochester Monojet is 30 CFM larger than an 1920 at 250 CFM>
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ESP47
Well-Known Member
Just curious, why do you want a supercharger but you don't care about power? Just seems like added costs and extra failure points for no real reason. I'd at least want to go fast if I was going to spend the money and take the risk.
Slant Six Bumblebee
Well-Known Member
well i like the sound of a supercharger
Slant Six Bumblebee
Well-Known Member
i decied to use a eaton m90
pishta
I know I'm right....
Can draw through that too. Carb in the back.....better size. But remember that those SC's are designed to run dry to fuel injectors, the teflon seals will potentially get eaten by fuel from the carb. Not sure how long they will last but its been done with Eatons.
Slant Six Bumblebee
Well-Known Member
pishta
I know I'm right....
Not a fan of the low hanging plenum tube for fuel seperation, Id make the carb as close to the inlet as possible with maybe a 90 at the rear and run the carb next to the firewall or possible out to the side but keep it highter than the inlet so fuel out of suspension will at least run into the inlet. I suggested that he extends the accelerator pump shooter right into the top of the SC. The drift guys that run SC's on LS powered 240SX's run the SC backwards and run a belted shaft back up to the front of the motor to pick up the drive belt. Not sure why they do this, maybe as there is no room for the TB back there?
TT5.9mag
Two atmospheres are better than one
You can turn almost any carb in to a blow through carb. You have to, at the very minimum, change the brass floats, if equipped, to nitrophyl. Boost reference the power valve circuit, possibly drill out the power valve channel restrictors, and seal up the throttle shafts and any other possible boost leaks. Look up hanger18.com. It’s a site dedicated to blow through Holley stuff and all the tricks will apply to your 1 barrel. Usually the same size carburetor for an NA engine works just fine for blow through. Reason being it will flow more fuel when you push more air through it.
Edited to add link
Blowthrough Carb How-To
Edited to add link
Blowthrough Carb How-To
pishta
I know I'm right....
Yes, I was there 10 years ago doing a 350 Autolite (by Holley) 2bbl. Like I said, "alot of mods..."
Slant Six Bumblebee
Well-Known Member
i was thinking about that with the supercharger inplace of the turbo
RustyRatRod
Caput villa stultus
If all you want is the sound of a blower, get a cd of blower whine and put it in your stereo and turn it up.
Slant Six Bumblebee
Well-Known Member
a cd is not very good bragging rights
RustyRatRod
Caput villa stultus
An improperly set up blower and induction system is even more stupid. Think about what you're doing. I'm done here. You're going to do exactly what you want. All you're looking for is a yes man and I'm not that guy. I like giving people good advice and you don't want to hear it.
BillGrissom
Well-Known Member
Good idea. I didn't know those M-B Kompressor superchargers were so small and affordable ($200). Looks just slightly larger than an RV2 compressor. My idea would be to replace the 1 bbl with a throttle body from a modern 6 cyl and add MPFI ports on the manifold. I have some 1 bbl aluminum manifolds to play with. Indeed, I would grab a "Kompressor" label off a junkyard M-B and glue it to the trunk to make people say "WTF" and challenge me. "OK, $50 I have one under the hood."
Slant Six Bumblebee
Well-Known Member
i was thinking about that but dont want to mess around with port injection. so im just going to use a supersix intake and eaton 90
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