S2000 Under The Hood S2000 Technical and Mechanical discussions.

SC More Midrange Boost

Thread Tools
 
Old 11-08-2003, 08:29 PM
  #1  
Registered User
Thread Starter
 
Darksyde's Avatar
 
Join Date: Jun 2003
Location: Orlando
Posts: 217
Likes: 0
Received 0 Likes on 0 Posts
Default SC More Midrange Boost

I know the subject has been talked about before about how to add more midrange punch to supercharger similar to that of a turbo without the problems associated with a turbo. The problem was when you increase the boost on the supercharger to get more in the midrange, 6-7psi at 4500rpm for example, you would end up with more boost at redline then the block would be able to handle. So the only way to do this is bleed off the excess boost that is created. People said that it could be done with a BOV but they don't work like that but a POV, Pop Off Valve or relief valve, works like that. I was on the RX7.COM web site and remembered seeing something like this and there it was and from the description on the site it might fit the bill. I don't know if my assumption is correct or not, but I thought I would throw it out there for discussion.


Greddy Pop Off Valve
Old 11-09-2003, 07:01 AM
  #2  
Registered User
 
TwoFourty's Avatar
 
Join Date: Sep 2002
Location: Savannah
Posts: 250
Likes: 0
Received 0 Likes on 0 Posts
Default

That might work. A popoff valve could be set up to release all but 8 psi say for example and the when you shifted the BOV could release the rest. With a dif pulley on the charger you could make max psi a lot sooner and then hold it until redline. Maybe????
Old 11-09-2003, 07:51 AM
  #3  
Registered User
 
AStock's Avatar
 
Join Date: Dec 2002
Location: Hollywood, FL
Posts: 205
Likes: 0
Received 0 Likes on 0 Posts
Default

i'm surprised that comptech or paxton haven't done something like that already. maybe they have a reason for not having it?
Old 11-09-2003, 09:05 AM
  #4  
Registered User
 
1Fast99Si's Avatar
 
Join Date: Jul 2001
Location: Long Island
Posts: 1,489
Likes: 0
Received 0 Likes on 0 Posts
Default

Give Comptech a ring and ask.
Old 11-09-2003, 10:39 AM
  #5  
Registered User

 
Nobody's Avatar
 
Join Date: Aug 2001
Location: Bay Area
Posts: 2,776
Likes: 0
Received 2 Likes on 2 Posts
Default

And please post what they have to say!
Old 11-09-2003, 10:45 AM
  #6  
Registered User
Thread Starter
 
Darksyde's Avatar
 
Join Date: Jun 2003
Location: Orlando
Posts: 217
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally posted by TwoFourty
That might work. A popoff valve could be set up to release all but 8 psi say for example and the when you shifted the BOV could release the rest. With a dif pulley on the charger you could make max psi a lot sooner and then hold it until redline. Maybe????
That was my thinking.
Old 11-09-2003, 02:56 PM
  #7  
Registered User

 
RCR S2's Avatar
 
Join Date: Jan 2003
Location: Home
Posts: 685
Likes: 0
Received 0 Likes on 0 Posts
Default

You should run a wastegate since it needs to be adjustable. You could set up with a wastegate and a boost controller to dial in the boost you need. Wastegate are normally for Turbos but you need it's precision and control. Something you dont get with the BOV.
Old 11-09-2003, 03:01 PM
  #8  
Registered User

 
RCR S2's Avatar
 
Join Date: Jan 2003
Location: Home
Posts: 685
Likes: 0
Received 0 Likes on 0 Posts
Default

Or you can use nitrous assist to boost midrange....

http://forums.s2ki.com/forums/showthread.p...ghlight=nitrous
Old 11-09-2003, 03:02 PM
  #9  
Registered User
 
fperra's Avatar
 
Join Date: May 2002
Location: Washington State
Posts: 3,178
Likes: 0
Received 0 Likes on 0 Posts
Default

Come on now! Waistegates don't and can't work on a supercharger setup. It only works on turbos.
Old 11-09-2003, 07:09 PM
  #10  
Registered User
Thread Starter
 
Darksyde's Avatar
 
Join Date: Jun 2003
Location: Orlando
Posts: 217
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally posted by fperra
Come on now! Waistegates don't and can't work on a supercharger setup. It only works on turbos.



Wastegates are only designed to work in the exhaust track.


Quick Reply: SC More Midrange Boost



All times are GMT -8. The time now is 04:39 AM.