nelapse

I want to go supercharger, but I am not interested in tuning two carbs, all the single carb superchargers I have seen say in bold writing that it will not work for serpentine setups. So anyone know of a supercharger that is a single carb, that will work with serpentine?

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Contact me if you need an Aluminum slave cylinder!!!

I also do intake porting!!!!

KS91Z28

Have you looked at doing ProCharger's TPI F-body setup, but instead of using the cast elbow to go into the throttle body, use a carb hat to go into the carb?

nelapse

Yeah but I am not interested in a centrifigal super charger. I rather have less weight and a cleaner engine bay you know?

I found one on summit I think... the ad contradicts itself so I will never know unless I call.

KS91Z28

I'm not really sure what you mean about less weight. You do realize that a roots style blower is going to weigh 2 or 3 times what a centrifugal blower does, right?

nelapse

Blower to blower you are right, the big *** bracket for the centri one weighs more than the super charger itself, then you need the piping.

I am confident on my choice. Even if it did weigh less I do not want that clutter in my engine bay.

KS91Z28

That's cool. To each his own.

theorio1025

use a holley or weiland 142 or 144

fireturd350

How much compression are you running? You need to really watch that and ring gaps when you start going forced induction.

Sonix

Yea, of course you'd want to build the motor specifically for that purpose, to get the maximum benefit.
Anyway, i'm just tagging on to this thread for informations sake.

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Right now I have High compression. Around 10.2:1 Which is obviously a poor choice for supercharging.

However, with some porting to my heads I can make create bigger chambers and reduce compression, but the route I was thinking of taking would be to get scroggin vortec heads.

By doing so I have a new problem. Now I have to find a supercharger that has a vortec lower manifold. It may not be worth the hassle.

Eventually, my ultimate goal is a Blown 406.

I will build the 406 on a fully forged platform but, my wife and I decided that I will start the block in a couple years.

So, my 355 will be my current subject to get the tuning skills right and then I can transplant everything when the time comes.


The next plans for my 355 is:

Comp-305 Cam and upgrades to my heads to accept the cam.
I do not want to rev it to the moon so I will keep the redline around 5500.

I am debating on what carb I want to use for the supercharger, I have a 750 edelbrock now, I am debating on a 750 DP holley or rebuild my Rochester that is laying around. Dual carbs is not an option, I am learning to tune carbs and I really do not need two to work with.

As for fuel system, I am running a 2.8L V6 electric pump, I will try and upgrade a 255L walbro pump. I want to keep the electric pump.

I am still searching for the right blower. I need to think about what PSI I need to run.

Damon

A general suggestion you might want to look into, although I have not done it myself....

Weiand/Holley makes a version of their littlest 142/144 that is emissions legal for 86-87 Carbureted Camaros/Firebirds. It is the "super long nose" version and will clear a serpentine setup (it has to clear 3 v-belts plus the smog pump belt on it's intended application). Downside is that it's marginally too small for a 400 and pulley selection is limited becuase it's an emissions legal one. You can make spacers for a standard length, larger diameter 7" bottom pulley to space it out further to match the super long snout on the blower, I suppose, but you can't buy them (stock pulley with the emissions blower is the smaller 6" unit which just ain't gonna give you enough blower speed to make meaningful boost on a 400). Either way, the blower itself is kinda maxed out around 500HP- just can't move enough air to make much more than that. Ask me how I know.

I don't believe anyone makes a larger roots blower to clear a stock serpentine setup. I could imagine that a larger 174/177 in it's "short nose" version would put the pulley fairly close to where the stock serpentine belt runs and maybe you could space it out just a smidge to get it to line up and be driven by the same serp. belt that drives all the other accessories. But those larger blowers all use a 10 rib belt, I beleive (although you could probably drive it with 6 and hope it doesn't slip or jump a notch). And as you can imagine it might take a bit of work with brackets/idler pulleys to add the blower into the belt routing and make it all work. Somewhere on this board is a guy who did this with the smaller 142 using the short nose version and somehow adding it into the stock serpentine belt routing but that was probably a couple years back at this point and I have no idea if he's still around.

In short, converting to V-belts might be a lot easier than trying to work around the stock serpentine setup if you're into using a single-carb roots blower.

DIGGLER

save some headaches and get a centrifugal. run an aftercooler and the car would make way more power than just a little roots style. and keep your stock hood, too.

nelapse

I fabricate for a living so what is the headache?

The headache is spending $2000 Max for a complete all said and done supercharger system vs $3000 all said and done for a centrifigual one that looks messy.

Actually $3000 is a little too modest, more like $3500

whiteghost7

I bought my p1sc setup from bob at epp for only $2300 complete. I did need an adj. fpr and 255lph pump to go with it though so add another $300

vorticaldavid

i know this is way old, but just incase anyone else is interested....

http://www.holley.com/6504-1.asp

AVAILABLE FOR PURCHASE
Price: $2396.90


Weiand's Pro–Street Superchargers represent a significant leap in technology for obtaining substantial performance gains (25–40% over stock) while maintaining drive ability and reliability. What's more, Weiand has received a C.A.R.B. exemption covering 1986 Chevrolet passenger cars and light trucks equipped with carbureted 305–350 c.i.d. small block engines. The kits must be installed with the supplied pulleys as well as an OEM carburetor and emission controls in order to retain 50–state emissions legality.
X–Long Nose 6–Rib Drive Belt 1986 only 50 State Emissions Legal Satin Finish

Installation Notes
Will work with accessory drive Pulley systems that use a combination of serpentine and V–belts. X–Long nose kits fit most short and long water pump applications. Will not work on any vehicles originally equipped with a TPI fuel Injection system.