Hey Everyone,

I am looking to up the ante on the hp of my nova. Nitrous aint' cuttin' it for me anymore. I was thinking about a 144 B&M Blower, however my nova's compression is 9.5 to 1 so thats out of the question as I hear from many people. They said I can pull it off though if I change the blower belt to a heavy duty but that would restrict the horsepower potential or I could double up or even change the head gaskets in efforts to lower the compression. I would also most likely need to change the gear drive as well. In my mind I ran through all the possible Ideas. I came up with something different. Turbo!. You dont see many Turbo Nova's although there are some out there! For a 327 small block, what model from what company turbo is compatable for SBC's? What is involved in putting it in? Is it worth it for the amount of horsepower gain?

Hopefully some of you can help me.
Its hard to find info on something people
Dont often do to their cars, but I figured
You guys would know it all graemlins/beers.gif

Thanks for your Help.

-Brian

Turbos like compression ratios similar to roots-style blowers in the 8.5-8.75:1 range. A centrifugal works well at 9 to 9.5:1 with moderate boost.

Jody

Well I don't have much knowledge of forced induction, but I do love reading about it. As for a certain Turbo company/kit, my best advice would be to call around all the major turbo companies, and also those that aren't "name brand." From the reading and "looking around" I've done, I've never seen an actual turbo "kit" for a Chevelle, let alone a Nova. Best thing to do is look around, call, give them your info, tell them what your plans are for the car, possibly let them know your budget, then see who gives you the best advice, then make your decision. I think that'd be pretty sweet to see a turbo'd 327ci, especially since your can wind that lil sucker pretty high :D :D :D Good luck, and let us know if/when do get the ball rolling, I'm sure there'd be a lot of us who'd love to see pics of your creation! graemlins/thumbsup.gif

im not going to lie to anyone a turbo 327 would be serious kick ass. um as far as the turbo companys go i think banks would be your best bet, they do build a twin turbo kit for a small block chevy. from what i hear the kit is mostly used on 350s but i think a 327 would be a bit better because it revs up a little quicker which would mean u build boost that much faster, the kit they make also is cool because it makes about 600 horse on pump gas and can be tuned with race gas to the light side of 1100hp( this is what i have heard not 100% sure on that) the kit comes with every thing from ur turbos to your boost controllers and ur down pipes hope this helps and also if u dont want to go that way with it u could always take a look at a buick GN and jsut build a kick ass air box over ur carb and run that style of singel turbo set up

hope this helps u a bit and if u do go turbo with it good luck i think u will enjoy the turbos very much

There are some guys starting to make turbo kits for 3rd Gen Camaro's. Check over at www.thirdgen.org (http://www.thirdgen.org) Another option is a rear mount system. A company called STS makes kit where you mount the turbo at the back of the car. I am not a big fan but it does work.

Steve

Hello,

2 friends have run the 144 B&N blower on small blocks. 327 in a 57 Chevy, and a 350 in a 79 Z28. Both cars were animals.

I run a 174 B&M on a 454 with about 9:1 or so. Truth be told, my compression is probably higher as I have early tiny closed chamber heads.

Your compression should not be a problem at all. Good idea you to use a head gasket to knock off some compression.

The beauty of the small blowers is they bolt right on. So simple and user friendly. All you do is bolt on intake, bolt blower to intake, bolt on lower drive pulley in front of lower crank pulley, install belt and you are set. Things that need attention after blower install are distributor (20 degree curve all in by 2500 RPM, 32 or so total timing), add some jetting to the carb (maybe 2 to 3 jet sizes front and rear), colder spark plugs. That is about it. Very simple stuff and tons of power.

I have a copy of the old B&M Supercharger book. Contains there recommendations for building an engine. If you like, send me your address and I will copy pages and send them to you. Better yet, go to www.holley.com (http://www.holley.com) and check out Supercharger section. They purchased B&M a while ago and use the same text from the B&M books to recommend engines.

Good luck, Joe

i went to the super chevy show this past year at irp in Indy and saw the pro charger's project nova car. It ran a 427 bb all motor and went 12.3 at like 115ish. Then they put on one of their F-2 pro charger supercharger kits, thats water to air cooled also. It then went an 8.7 at like 8.18 at 170mph. Thats on pump gas!!! Ive also seen several street cars with them and i am very impressed. They are also a self contained unit, which means that you dont have to run an oil line from your motor to the blower. Check out there web site http://www.procharger.com/chevy_nova.shtml

http://www.chevelles.com/showroom/slicksty7/slicksty7003.jpg

Brian either way you go the cost is about the same,only you will need a lot of imagination for the turbo set up.your comp ratio is fine anyway you go also.Good Luck with your choice.

Hey Guys,

I'm lovin this turbo idea and I think I'm going to go for it. I am going to pull the heads off first and see if I can lower the compression a bit. But we need to start talking turbo installation and what I need. I am a turbo dummy and although I have installed a 144 supercharger into a corvette (350), when I comes to turbo I know nothing. This seems to me to be a fairly recent thing to do to a muscle car. I always thought turbo's were for little ricers. But lately your starting to see them on everything from Chevys to Mopeds. I think its a great idea, I just need a little advice on where to begin. First of all, what is needed for a turbo kit besides the turbo? I know theres pipeing involved and I've seen some of the hoses that clamp to the top of the carb, but what else is needed. Wastegate, Intercooler - whats the purpose and is it necessary for my application? I can be happy making 100 extra horsepower (would like to make as much as possible of course). Also, you hear lbs of boost,... whats the ration of lbs of boost to horsepower gained and whats the boost limit in these things? I hear these rice guys talking about starting with 8lbs of boost and putting out 20 by the time they are done. Anyway, thanks for the input,

Brian

My vote is for the blower. I have a 27' Baja boat with a 454, 177 Weiand blower, 800 Holley blower carb, forged pistons at 8.5 CR, oval port heads, small blower cam and it is the sweetest hot rod I've ever had. A small blower essentially increases the flow of the stock intake system by at least 50 %. The everyday operation is so smooth that you almost forget you are running a 500+ hp hot rod. It idles the same, uses about the same amount of fuel - until you hit the throttle. The instantaneous torque is amazing. I run a high pitch prop and it still pulls skiers like they weren't there.

The point being, in a car this combo would almost defy traction at slow speeds - regardless of the gears you run. If you drive semi sensibly, mileage actually is better than no blower. If you like instant gratification when you stab it, nothing will beat the blowers. It may end up in my 65 ELKY someday.
OLDED

There are quite a few options to add the turbo(s) to your 327. You can go w/ factory take-offs or something from aftermarket turbo company. With the proper internals and a decent set of heads, 600hp is easily attianable.

To install one or two, a set of turbo headers or manifolds can be fabricated pretty easily. From there you'll need the appropriate plumbing to the intercooler and to the carb or EFI.

A few basics, intercooling is the best way to go. A budget setup can be fit in the car without issue. http://geocities.com/64duece/intercooler

A wastegate is required to keep from overboosting your engine. A manual or electronic boost controller can be used in conjunction to adjust the boost to desired levels.

Once you have a properly designed and working turbo setup, it'll be pretty amazing. The driveability and power are not rivaled by any other power adder. BTW, a nice benefit is how quiet it is for the type of power it'll produce.

This is not for everyone. It takes abit of time to get the tune sorted out (blow-through or EFI). If your a "bolt it on and go" kinda guy, the roots blower is a better option.

Some helpful links...

http://www.boards2go.com/boards/board.cgi?&user=huntracers

http://www.turbomustangs.com/forums/

http://geocities.com/64duece/

64 I have a question. How much did your set up cost? Also, how much do you think it would cost to do a tt 540 intercooled of course. maybe 12-15 lbs on 93. Shootin for like 1200 hp

My deal is abit different. I'm a dealer for most of the equipment used on the car, that affords us some savings. I also perform all the fabrication work.

I'm currently doing a TT540 in a 69 Chevelle. This car was picked last year for the Pump Gas Drags but, the customer was unable to make it. He's reapplied this year and I've stepped in to help him get it done with a new turbo combination. To give you a ballpark of what it cost. Here's a sample of what this customer's project looks like. This will be capable of nearly 1800hp w/ a race fuel tuneup.

304SS Headers $1250
Elbows w/ T4 ends $300
PT71GTS Turbos (x2) $2160
Tial 44mm Wastegates (x2) $700
Custom A/A intercooler $750
Fabricate 3 1/2" Downpipes and tie-in wastegates $400
Fabricate intercooler plumbing and air intake system $400
Dynotune $$$ TBD

Other things like oil feed/return, instercooler install etc will be completed by the customer.

For information on designing a turbo system for your car you should really go out and buy the book "Maximum Boost" by Corky Bell. He covers a lot of the questions that you will need answered and explains compressor maps, and efi tuning for once the system is installed. It is a great read if you are interested in things like that. Hope this helps.

Anthony

Originally posted by 64duece:
My deal is abit different. I'm a dealer for most of the equipment used on the car, that affords us some savings. I also perform all the fabrication work.

I'm currently doing a TT540 in a 69 Chevelle. This car was picked last year for the Pump Gas Drags but, the customer was unable to make it. He's reapplied this year and I've stepped in to help him get it done with a new turbo combination. To give you a ballpark of what it cost. Here's a sample of what this customer's project looks like. This will be capable of nearly 1800hp w/ a race fuel tuneup.

304SS Headers $1250
Elbows w/ T4 ends $300
PT71GTS Turbos (x2) $2160
Tial 44mm Wastegates (x2) $700
Custom A/A intercooler $750
Fabricate 3 1/2" Downpipes and tie-in wastegates $400
Fabricate intercooler plumbing and air intake system $400
Dynotune $$$ TBD

Other things like oil feed/return, instercooler install etc will be completed by the customer. Probably somewhere in the neighborhood of $10k, ouch. Just out of curiosity how come you went with those turbo's and not something larger 88mm or ultraeffecient T51R type. Do you think you left any power on the table with the chosen turbos is my real question?