Forced Induction Superchargers | Turbochargers | Intercoolers

veriable speed blower drive

Thread Tools
 
Search this Thread
 
Old Jun 23, 2014 | 06:27 PM
  #1  
dezlfrek's Avatar
Thread Starter
TECH Apprentice
iTrader: (1)
 
Joined: Oct 2013
Posts: 309
Likes: 0
From: sonoma ca
Default veriable speed blower drive

so why have none of you smart guys come up with a veriable speed blower drive say like the polaris drive atv but in opposite were at low engine speed it speeds up the blower and higher engine speeds turns the blower faster or to desired boost.. no lag or instant boost..
Reply
Old Jun 23, 2014 | 08:58 PM
  #2  
soundengineer's Avatar
8 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (16)
 
Joined: Jul 2003
Posts: 4,651
Likes: 17
From: Chicago IL
Default

Procharger I-1.... variable ratio...makes it so you can spin it harder at low RPM to keep consistent boost for the entire RPM Range

or you can do a wastegate setup in an Automatic car and spin it however you want and use a boost controller....
Doesnt work on a stick car unless you know how to powershift and never let out of the throttle

and Boost controllers have been doing this for many many years...
Reply
Old Jul 9, 2014 | 07:42 AM
  #3  
F110Mech's Avatar
TECH Regular
iTrader: (2)
 
Joined: Sep 2012
Posts: 452
Likes: 0
Default

Originally Posted by soundengineer
Procharger I-1.... variable ratio...makes it so you can spin it harder at low RPM to keep consistent boost for the entire RPM Range

or you can do a wastegate setup in an Automatic car and spin it however you want and use a boost controller....
Doesnt work on a stick car unless you know how to powershift and never let out of the throttle

and Boost controllers have been doing this for many many years...
Why wouldn't it work on a stick car? superchargers make boost by RPM. the idea behind the wastegate is that you spin the charger at max RPMs and regulate boost with the wastegate so even if RPMs drop on the shift it will be at max boost for that RPM or what ever boost you set it at.
Reply
Old Jul 9, 2014 | 07:58 AM
  #4  
soundengineer's Avatar
8 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (16)
 
Joined: Jul 2003
Posts: 4,651
Likes: 17
From: Chicago IL
Default

Originally Posted by F110Mech
Why wouldn't it work on a stick car? superchargers make boost by RPM. the idea behind the wastegate is that you spin the charger at max RPMs and regulate boost with the wastegate so even if RPMs drop on the shift it will be at max boost for that RPM or what ever boost you set it at.
we've done several vehicles with superchargers and wastegates...
all the stick cars with an added wastegate for boost control loose more boost with a shift than if it just has a blow off valve only

I'm not really 100% sure why it works that way...
I'm assuming it has something to do with the pressure wave that you get and the wastegate is basically interrupting it making it take longer to recover after a shift
Reply
Old Jul 9, 2014 | 09:54 AM
  #5  
F110Mech's Avatar
TECH Regular
iTrader: (2)
 
Joined: Sep 2012
Posts: 452
Likes: 0
Default

Originally Posted by soundengineer
we've done several vehicles with superchargers and wastegates...
all the stick cars with an added wastegate for boost control loose more boost with a shift than if it just has a blow off valve only

I'm not really 100% sure why it works that way...
I'm assuming it has something to do with the pressure wave that you get and the wastegate is basically interrupting it making it take longer to recover after a shift
Nice to hear from some real world experience. Thanks!
Reply
Old Jul 10, 2014 | 05:28 PM
  #6  
stevieturbo's Avatar
9 Second Club
 
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
Default

Originally Posted by dezlfrek
so why have none of you smart guys come up with a veriable speed blower drive say like the polaris drive atv but in opposite were at low engine speed it speeds up the blower and higher engine speeds turns the blower faster or to desired boost.. no lag or instant boost..
I presume the atv runs at much lower power outputs ? Maybe a smaller rpm range ?
Reply
Old Jul 11, 2014 | 01:29 AM
  #7  
chuntington101's Avatar
TECH Addict
 
Joined: Aug 2004
Posts: 2,866
Likes: 4
Default

It would be a lot of engineering work to get something that you can do by other means.

Fit a larger blower but pulley for max blower rpm at max rpm.
Fit either a suitably sized restrict or plate or a waste gate configuration.
Make sure you have the right conveyor, or for a stick car make sure you keep the rpm in the boost band.

Do the above and you can have all the power you could ever want. Oh and it's what the racers do!
Reply




All times are GMT -5. The time now is 04:02 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE