Gain extra benefits by becoming a Supporting Member Click here find out how!
Classic Performance Products Classic Parts
Ciadella InteriorsAmerican Auto Wire Classic Industries
Chevs of the 40sDanchuk Catalog
Hellwig Products IncPerformance Rod & CustomEcklers AutoMotive
Nu-Relics Power Windows
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy



Username Post: Superchargers        (Topic#349623)
Titos49 
"3rd Year" Silver Supporting Member
Posts: 118
Titos49
Loc: Santa Monica
Reg: 06-17-15
02-12-18 04:38 PM - Post#2724180    

Anyone put a roots on their car? love to see some photos. what i really like to see is it fit completely under a hood.

TIA

1949 Chevy Styleline Deluxe 2 Door Sedan - 350 SBC - Turbo Trans - Bagged - DMH Exhaust Cut outs


 

Bel Air kiwi 
"3rd Year" Silver Supporting Member
Posts: 4172
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
02-12-18 08:07 PM - Post#2724203    
    In response to Titos49

Hi Titos, I have one but not in a chevy.
If by rootes type you mean the traditional 671 GMC style on a small block then it is doable but almost pointless.

The fit and function of a blower motor doesn't work well with a road car. You don't build blower motors, you build blower cars.

The manifolds are about the same height as stock, the dual carbs are a different design, but about the same size, however the blower puts them 8-9" higher up. So specialised linkage kits and fuel lines with regulators and high flow pumps required.

You are also going to have to find about another 3 1/2" at the front of the motor for the belt drive or you could run 2" pulleys on low boost. Everything is going to have to bigger and stronger from the radiator, ignition, exhaust, brakes, transmission, etc.

If you have ever picked up a 671 they are a real heavy lump like a bag of cement. You are probably better of with a little B&M 144 or a belt driven vane type like a Novi or Paxton.

Faux blower motors are normally around four times the price of a naturally aspirated build and serious ones the sky's the limit.

Have a look at vendor prices on some of the gear needed.

Dart block, custom JE pistons, manifold and blower, carbs, linkage, ignition, crank and rods, cam and followers, heads

$2000.00, $1250.00, $5000.00, $1250.00, $325.00, $2000.00, $2600.00, $800.00, $5000.00.

That lazy $20,000.00 doesn't include all the bolts, gaskets, the pan, the cam drive (if adjustable), specialised timing covers or the exhaust, plus the costs for machining, balancing and assembly.

Plus I run with an accusump, romac balancer, custom drive, reluctor wheel and pulley set all hand made, custom alternator mount, wasted spark ignition and boost retard and these are all extras.
And you can double or triple US prices by the time they get down here.

Cheers Kiwi

Sorry guys I know its the wrong engine, but you can see the bulk of the blower setup. While for a Chevy you can buy a kit, not so much for an old Cleveland. That blower manifold is NZ only, the Australian ones are like modified tunnel rams to clear the distributor.





Attachment: P1030926.jpg (141.81 KB) 3 View(s)




Attachment: P1030927.jpg (149.67 KB) 3 View(s)




48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars.

And when it was laid to waste, they called it peace.


Edited by Bel Air kiwi on 02-12-18 09:10 PM. Reason for edit: No reason given.

 
rrausch 
"14th Year" Silver Supporting Member
Posts: 13777
rrausch
Loc: L.A, Cal. & St. Louis...
Reg: 04-07-03
02-12-18 10:50 PM - Post#2724219    
    In response to Bel Air kiwi

Not mine. Not sure whose car this is. If anyone knows, post it.



1953 210 Convertible, 261 with dual Carter YF 966S carbs, P.S., Remote Bendix P.B. Booster... shade-tree restoration about done.




 
VANDENPLAS 
Frequent Contributor
Posts: 1788
VANDENPLAS
Age: 38
Loc: ontario canada
Reg: 07-29-09
02-13-18 05:23 AM - Post#2724229    
    In response to rrausch

I have seen some of the 3.8 Chevy supercharged engine blowers modified for our engines.

Unless your going somewhat low pressure you will be spending big cake

And if your just going for eye candy an iron lung looks awesome !

" The chain in those handcuffs is made of high tensile steel. It will take you ten minutes to hack through it with this, if your lucky. You can hack through your ankle in fivei



In the land of the blind the one eyed man is king 👑


 
Bel Air kiwi 
"3rd Year" Silver Supporting Member
Posts: 4172
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
02-13-18 04:32 PM - Post#2724293    
    In response to VANDENPLAS

Hi Guys, starting with a naturally aspirated engine and then converting it to blower means you can't run any real boost at all. You have just spent a pile of beer vouchers and won't get great results.

Unlike diesel where the fuel goes in after and seperate from the air, ours doesn't. So in a diesel that is blowing excess air out the exhaust it is just cooling the valve.
On a petrol it is incinerating the valve in a blow-torch effect, due to the fuel and air being mixed beforehand. So you have to close the exhaust valve much earlier to avoid this situation. You also can't run very much overlap nor very narrow lobe separation angles.

While a methanol sprint car naturally aspirated on port and head injection may be running 106* to 108* LSA my blower cam is 119* LSA.
Blower and turbo engines have completely different cam designs. They look more like a high lift RV cam.

Next is the compression ratio. Engines don't run according to static compression ratio. It is next to meaningless as it is one of a few factors that determine dynamic compression ratio.
Volumetric efficiency, cam profiles , vacuum or boost all come into play.

The overall chamber volume on my engine OE would be about 90cc with the blower pistons and open chamber heads that goes up to 135cc. Which you would call about 7.5:1 static

Next. The engine makes over double the stock horsepower above 8lbs boost and all the stock parts will break beyond that. So given it's easy to feed in 20-30lbs of boost for short periods. If the engine wasn't boosted from the factory then it won't

Even if you do put on a baby blower and only run 5 lbs the fuel economy will be shocking, and if you don't revise your power valve in the carb to work backwards it will run lean and melt the thing.

Cheers Kiwi



48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars.

And when it was laid to waste, they called it peace.


Edited by Bel Air kiwi on 02-13-18 04:49 PM. Reason for edit: No reason given.

 
Titos49 
"3rd Year" Silver Supporting Member
Posts: 118
Titos49
Loc: Santa Monica
Reg: 06-17-15
02-13-18 06:14 PM - Post#2724302    
    In response to VANDENPLAS

any with a V8 under the hood. here is what i have and i am just always looking for things to do - dream a little. a big part of me just wants the sound haha just being honest. My car is a sleeper and probably can't handle the power if i got it without changing all my drivetrain but couple people here must have done it. just looking for photos and set up. looking for ideas. when i put my motor in i wanted it to sit as low as possible bc i thought it looked cooler and bc of the option for a small blower.

share if you got photos - it would be tight but i think it could fit.

Attachment: IMG_7402__2_.JPG (1.62 MB) 3 View(s)


Blueprint engine 350 SBC


1949 Chevy Styleline Deluxe 2 Door Sedan - 350 SBC - Turbo Trans - Bagged - DMH Exhaust Cut outs


 
Bel Air kiwi 
"3rd Year" Silver Supporting Member
Posts: 4172
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
02-16-18 08:20 PM - Post#2724643    
    In response to Titos49

Hi Titos, Your engine looks cool and as you have blueprinted it as a N/A engine you will need to rebuild it to make use of boost.
Lower compression, possibly less cam and the drive space.

If you just want a bit of a surprise for other people then the cost effective answer is probably to go with a NOS system of say 75 to 115 Hp boost.
Much cheaper and simpler to install than a full blower system, but more expensive to run if you can't keep your foot out of it.

We would need to see the front of the engine to see what space you have there for a blower drive.

Cheers Kiwi


48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars.

And when it was laid to waste, they called it peace.


 
Titos49 
"3rd Year" Silver Supporting Member
Posts: 118
Titos49
Loc: Santa Monica
Reg: 06-17-15
02-20-18 05:51 PM - Post#2725031    
    In response to Bel Air kiwi

Yeah - i actually have 2 10lb tanks from a previous car. Might just buy the set up and have a little fun. The blower route might be more than i can handle as a weekend warrior. Thanks

1949 Chevy Styleline Deluxe 2 Door Sedan - 350 SBC - Turbo Trans - Bagged - DMH Exhaust Cut outs


 
0utlaw 
Very Senior Member
Posts: 2789
0utlaw
Loc: US East Coast
Reg: 09-10-02
02-20-18 06:48 PM - Post#2725039    
    In response to Titos49

Mine is a 9.1 400 sb Chevy built especially tough with Keith Black Pistons and Pink style rods. The crank is stock. The heads are smog heads with small valves with gasket matched and slightly ported.(because I had them) I used a mild cam and a BDS 4-71 blower turning 3% over crank speed for 5 lbs at 5000 rpm.
I have a 750 Holley on a 2 inch aluminum spacer.
The blower makes up for inconsistancies in the induction path (small valves, small ports, etc)
I have a very smooth idle and this machine roars to life in one turn and revs fast when needed.
This is one of the finest running motors I ever had. It is EXTREMELY Streetable. Power? I have run it in 3rd to about 90 mph (it gets there fast) pinned to the seat and the front wheels trying to lift off the ground.
At this point, it scares me cause it feels the power will never stop.
Downside...If you run in colder climates..like 50 degrees or colder and humid, you can get severe carb icing. I heat the incoming air to 80 degrees when needed and under those conditions, it runs perfect...and has since 1998. So,for me, it was cost effective.
I recommend a blower to anyone looking for a boost in power...on a motor built to take it...set up properly by a blower engineer (mine was on the phone)... pulley sizes etc.
Cheers to BDS...they know their stuff!



 
Bel Air kiwi 
"3rd Year" Silver Supporting Member
Posts: 4172
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
02-20-18 11:05 PM - Post#2725064    
    In response to 0utlaw

Hi Outlaw, what carb do you run? Can you post some images?

Cheers Kiwi

48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars.

And when it was laid to waste, they called it peace.


 
0utlaw 
Very Senior Member
Posts: 2789
0utlaw
Loc: US East Coast
Reg: 09-10-02
02-21-18 05:28 AM - Post#2725079    
    In response to Bel Air kiwi



Box stock 750 Holley. Sorry Chevy guys...it's a Ford Body...just a body. In fact just cab, fr fenders and grille. Frame is s10. Rest is homemade and ratty.
5 lbs boost at 5000 rpm gives an effective CR ratio of 11.1.
High test (93) is a must.
Radiator is behind cab. Cools with stock Chevy pump. Trans is B&M Turbo 400. I used a 2100 stall..but it wasn't necessary. Rear is Dana 70 Suregrip 3.55 ratio. Carb heater located below scoop.Inside switch controls temp.
I get about 14 mpg.
This has a smooth idle...not like the ones you see in videos that have a ragged idle.



 
rrausch 
"14th Year" Silver Supporting Member
Posts: 13777
rrausch
Loc: L.A, Cal. & St. Louis...
Reg: 04-07-03
02-21-18 09:47 AM - Post#2725102    
    In response to 0utlaw

Love it Outlaw. Do you have any videos of it going down the road?

1953 210 Convertible, 261 with dual Carter YF 966S carbs, P.S., Remote Bendix P.B. Booster... shade-tree restoration about done.




 
0utlaw 
Very Senior Member
Posts: 2789
0utlaw
Loc: US East Coast
Reg: 09-10-02
02-21-18 02:14 PM - Post#2725121    
    In response to rrausch

https://photos.google.com/photo/AF1QipNS6sEFYxK 7IB...
This is a 3 minute continuous loop video though Google photos...gave it a quick burst.
If you can view this, notice the smooth idle and super response. There is no roll like you see in many supercharged vehicles. Notice, it sounds like glasspacks...but it's turbos. This vehicle is right at home idling up back roads or cruising down the road. The air filter in the scoop is small and restricts performance...I have a tall K&N filter on it now.

https://photos.google.com/search/_tra_/photo/AF 1Qi...





 
Keith_Knox 
Moderator and "16th Year" Gold Supporting Member
Posts: 5831
Keith_Knox
Age: 76
Loc: Napa, Ca USA
Reg: 04-02-00
02-21-18 11:22 PM - Post#2725158    
    In response to 0utlaw

Getting Google error on the videos.

1948 Chevy Fleetmaster Coupe Purchased 6/2010. Stock with rebuilt 52 216 installed May 1966.
1946 Chevy 1/2 ton pickup, stock. Purchased 11/18/17.
1962 Ranchero Purchased 4/2017 221 V8 Automatic.
2013 F150 Crew Cab


 
0utlaw 
Very Senior Member
Posts: 2789
0utlaw
Loc: US East Coast
Reg: 09-10-02
02-22-18 12:14 AM - Post#2725163    
    In response to Keith_Knox

Image hosting is basically new to me. Not working.

Perhaps I can send video/ pics by private email.



 
Bel Air kiwi 
"3rd Year" Silver Supporting Member
Posts: 4172
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
02-25-18 11:10 PM - Post#2725630    
    In response to 0utlaw

Hi Outlaw, we would appreciate the effort.

Thanks Kiwi

48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars.

And when it was laid to waste, they called it peace.


 
0utlaw 
Very Senior Member
Posts: 2789
0utlaw
Loc: US East Coast
Reg: 09-10-02
02-26-18 06:27 PM - Post#2725736    
    In response to Bel Air kiwi

Hopefully video coming your way.



 

Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

720 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.695 seconds.   Total Queries: 19   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 03:25 PM
Top