Twin roots blower setup?
Thread Starter
High on diesel fumes
iTrader: (70)
Joined: Mar 2005
Posts: 12,333
Likes: 0
From: Phoenix, AZ
Twin roots blower setup? I have a couple of questions about twin-supercharger setups.
First, what is the advantage? I read somewhere that unless you run them in a series (outlet of one supercharger feeds the inlet of the second), you don't get any additional boost. Would the additional volume of air make a difference if I don't see a drop in boost at redline anyway?
Second, does anyone know if Magnacharger makes a setup like this? Someone mentioned in passing in another forum that they make a manifold that will hold two blowers, similar to the twin-supercharged engines from www.nelsonracingengines.com, but their website doesn't have anything about it. I sent their tech guys an email, but haven't gotten a response.
Thanks!
First, what is the advantage? I read somewhere that unless you run them in a series (outlet of one supercharger feeds the inlet of the second), you don't get any additional boost. Would the additional volume of air make a difference if I don't see a drop in boost at redline anyway?
Second, does anyone know if Magnacharger makes a setup like this? Someone mentioned in passing in another forum that they make a manifold that will hold two blowers, similar to the twin-supercharged engines from www.nelsonracingengines.com, but their website doesn't have anything about it. I sent their tech guys an email, but haven't gotten a response.
Thanks!
TECH Addict
Joined: Aug 2004
Posts: 2,866
Likes: 4
i think the main advantage of, say twin mags, is the volume you can shift per rev. the most you can move with a single whipple is 3.3ltr, but if you used 2 of the 1.6ltr (pretty small bower that would be easy to package) then you are getting 3.2, not that far off so if you went for two 2.3ltrs......also, as you can shift more air you can spin the blower slower and thus reduce inlet temps. also coz you would normaly mount the twin blowers not on top of the engine, so it is easier to incorp a intercooler, and you could run a more effective (on the road) air to air intercooler as well.
a lot of manufatures run single blowers (Jag, merc, etc) but Aston did use a twin blower set up on their old V8!
Thansk Chris.
a lot of manufatures run single blowers (Jag, merc, etc) but Aston did use a twin blower set up on their old V8!
Thansk Chris.
Originally Posted by thunder550
I have a couple of questions about twin-supercharger setups.
First, what is the advantage? I read somewhere that unless you run them in a series (outlet of one supercharger feeds the inlet of the second), you don't get any additional boost. Would the additional volume of air make a difference if I don't see a drop in boost at redline anyway?
Second, does anyone know if Magnacharger makes a setup like this? Someone mentioned in passing in another forum that they make a manifold that will hold two blowers, similar to the twin-supercharged engines from www.nelsonracingengines.com, but their website doesn't have anything about it. I sent their tech guys an email, but haven't gotten a response.
Thanks!
First, what is the advantage? I read somewhere that unless you run them in a series (outlet of one supercharger feeds the inlet of the second), you don't get any additional boost. Would the additional volume of air make a difference if I don't see a drop in boost at redline anyway?
Second, does anyone know if Magnacharger makes a setup like this? Someone mentioned in passing in another forum that they make a manifold that will hold two blowers, similar to the twin-supercharged engines from www.nelsonracingengines.com, but their website doesn't have anything about it. I sent their tech guys an email, but haven't gotten a response.
Thanks!
you have to run them parallel.. not in series...
positive displacement blowers work by moving X volume of air into a smaller space...
for example, my eaton M112 moves 112Ci of air per revolution.
of course, to shove enough air into a larger motor, you have to spin it faster.
when it spins faster, there becomes a point where its less efficent... it starts heating up the air too much and you'll start to lose power.
by running two of them, say dual M90s, instead of 90ci of air per rev, you get 180ci of air per rev.... you can then spin the slower, hopefully in the "sweet spot" and make more power.
but really, its better to run one large, efficient supercharger then two smaller ones.......
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Launching!
Joined: Dec 2004
Posts: 216
Likes: 0
mello...you are getting things mixed up------ 
hope that the links below help clear the smoke......
the owner of the malibu is for real
the car is well known on third gen org!!!!!!!!!!!!!!!!!!!!
check this old thread from us on ls1.tech and com and third gen
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Tryed to gather some Eaton/Magna infos and this came up!!!!!!!!!!!!!!!!!
Funny things pop up when you press the search button and dont need a Industrie kit to make a M112 run!
4th gen guys read this:
Third Generation F-Bodies > Tech Boards > Power Adder > Eaton M112 Runs!
http://www.thirdgen.org/techbb2/show...ght=eaton+m112
4th gen LT1 Eaton website:
http://community.webshots.com/album/73249682zNpxhw/1
Eaton m112 with 1000HP?
Third Generation F-Bodies > Tech Boards > Power Adder > Twin Eaton breathing air
http://www.thirdgen.org/techbb2/show...ght=eaton+m112
Magna Talk ?
LS1TECH > LS1-LS2-LS6-LS7 PERFORMANCE > Forced Induction
https://ls1tech.com/forums/forced-induction/252210-tony-johnopls-3rd-gen-magna.html
Real world compares avoided??? Magna/ATI?
LS1.Com Forum > LS1 Specific Technical Discussion > LS1 Forced
http://www.ls1.com/forums/showthread.php?t=543222
Pro Talk about magna? While the backyard is running 10th with a homemade “Magna”!
http://www.toohighpsi.com/SCTC/sctc.htm
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXX
ATTENTION if you know someone running a magnacharger hybrid pls let me know!!!!
hope that the links below help clear the smoke......
the owner of the malibu is for real
the car is well known on third gen org!!!!!!!!!!!!!!!!!!!!
check this old thread from us on ls1.tech and com and third gen
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Tryed to gather some Eaton/Magna infos and this came up!!!!!!!!!!!!!!!!!
Funny things pop up when you press the search button and dont need a Industrie kit to make a M112 run!
4th gen guys read this:
Third Generation F-Bodies > Tech Boards > Power Adder > Eaton M112 Runs!
http://www.thirdgen.org/techbb2/show...ght=eaton+m112
4th gen LT1 Eaton website:
http://community.webshots.com/album/73249682zNpxhw/1
Eaton m112 with 1000HP?
Third Generation F-Bodies > Tech Boards > Power Adder > Twin Eaton breathing air
http://www.thirdgen.org/techbb2/show...ght=eaton+m112
Magna Talk ?
LS1TECH > LS1-LS2-LS6-LS7 PERFORMANCE > Forced Induction
https://ls1tech.com/forums/forced-induction/252210-tony-johnopls-3rd-gen-magna.html
Real world compares avoided??? Magna/ATI?
LS1.Com Forum > LS1 Specific Technical Discussion > LS1 Forced
http://www.ls1.com/forums/showthread.php?t=543222
Pro Talk about magna? While the backyard is running 10th with a homemade “Magna”!
http://www.toohighpsi.com/SCTC/sctc.htm
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXX
ATTENTION if you know someone running a magnacharger hybrid pls let me know!!!!
Originally Posted by LS1 Hybrid Magna
Mr dude ....are you "saturn5" on third gen org???????????? 
is this the twin eaton ford SC mafia?????
is this the twin eaton ford SC mafia?????
lol, no, im not Saturn5... but you're right, thats his car.
edit:
btw im MrDude_1 on thirdgen.org.... and everywhere else too.
Originally Posted by LS1 Hybrid Magna
ATTENTION if you know someone running a magnacharger hybrid pls let me know!!!!
Launching!
Joined: Dec 2004
Posts: 216
Likes: 0
hahahah Mr. Dude you always make me laugh!!
Those two eatons must scream like music.....
Right Mr. Dude ! magna or eaton bring it in and let me see some webside where folks have build some!!!!
Yah...sorry to hear that rooster lost some bizz due to a ripper on his patent pend. stuff...if i remember right!
So Mr. Dude this is a pic from country that produces the best car in the world:
blower big boss BENZ
for the money you spend on this sucker you could build a 3rd gen Fbody that can FLY!
does anybody know of a W 114 Mercedes Benz ...with a chevy V8 engineswap??????
Those two eatons must scream like music.....
Right Mr. Dude ! magna or eaton bring it in and let me see some webside where folks have build some!!!!
Yah...sorry to hear that rooster lost some bizz due to a ripper on his patent pend. stuff...if i remember right!
So Mr. Dude this is a pic from country that produces the best car in the world:
blower big boss BENZ
for the money you spend on this sucker you could build a 3rd gen Fbody that can FLY!
does anybody know of a W 114 Mercedes Benz ...with a chevy V8 engineswap??????
http://www.harrop.com.au/products/ro...en/engine.html
The Australians are freakin crazy (in a good way mates
). Watch the video with the eaton blower... sounds like a Cobra to me, very sweet.
Also the IR manifold looks sweet too, although you loose bottom end torque. Looks like about 262 lb/ft of torque at 2000 RPM. Sounds bad *** too
The Australians are freakin crazy (in a good way mates
). Watch the video with the eaton blower... sounds like a Cobra to me, very sweet.Also the IR manifold looks sweet too, although you loose bottom end torque. Looks like about 262 lb/ft of torque at 2000 RPM. Sounds bad *** too
