C5 Forced Induction/Nitrous C5 Corvette Turbochargers, Superchargers, Centrifugal, Twin Screw & Roots Blowers, Twin Turbo Kits, Intercoolers, Wet & Dry Nitrous Injection, Meth
Sponsored by:
Sponsored by:

Close to pulling trigger in A&A- have question on lowered car

Thread Tools
 
Search this Thread
 
Old 11-14-2018, 01:03 PM
  #21  
StrangelovesM6Vert
Le Mans Master
 
StrangelovesM6Vert's Avatar
 
Member Since: Jul 2013
Posts: 5,699
Likes: 0
Received 144 Likes on 123 Posts
Default

Originally Posted by tabbruzz
Wow, your boost is really up there. What pulley are you using? I am going back and forth between buying the 3.8 or 3.6. My 99 has a stock motor, but does have LS6 intake, headers, cats still on, cat back exhaust and 3200 stall converter...I was trying to stay around 10 psi max and even a tad lower...I know it may be 7 to 9 psi with the 3.8 and 10 or 11 psi with the 3.6, but that's a guess
I have the 3.4 pulley with longtubes and make 8 psi.
Before the longtubes with shorties and stock cats the 3.6 pulley made 8 psi but
it dropped to 6 after the longtubes.
Old 11-14-2018, 03:07 PM
  #22  
69GTO96Z
Racer
 
69GTO96Z's Avatar
 
Member Since: Mar 2012
Location: DFW Texas
Posts: 313
Received 38 Likes on 31 Posts

Default

I am running a YSi head unit with a 3.33 pulley and a overdriven balancer.
Old 11-14-2018, 04:21 PM
  #23  
tabbruzz
Safety Car
Thread Starter
 
tabbruzz's Avatar
 
Member Since: Feb 1999
Location: Central NJ
Posts: 3,912
Received 289 Likes on 214 Posts

Default

Originally Posted by StrangelovesM6Vert
I have the 3.4 pulley with longtubes and make 8 psi.
Before the longtubes with shorties and stock cats the 3.6 pulley made 8 psi but
it dropped to 6 after the longtubes.
I am confused as to why it boost would be that low. This is the lowest that I have heard. I assume you do not have a stock engine....Do you? mods??
Old 11-14-2018, 04:23 PM
  #24  
tabbruzz
Safety Car
Thread Starter
 
tabbruzz's Avatar
 
Member Since: Feb 1999
Location: Central NJ
Posts: 3,912
Received 289 Likes on 214 Posts

Default

Originally Posted by 69GTO96Z
I am running a YSi head unit with a 3.33 pulley and a overdriven balancer.
Understood.....Thanks
Old 11-14-2018, 08:36 PM
  #25  
neutron82
Race Director
Support Corvetteforum!
 
neutron82's Avatar
 
Member Since: Dec 2010
Location: Atlanta, GA
Posts: 10,426
Received 1,260 Likes on 1,055 Posts
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019

Default

you also have to take into account how high the car is being revved... if they are cutting the rpms short, say 5500, then that will also explain the boost seeming low... rap it out to 6500+ and then you may see the 10-12psi you want... the impeller speed will also make a difference, for example you could use an overdrive balancer to turn the blower harder and make a higher boost number than you would with the same blower pulley and stock balancer with both being revved to the same rpm

Last edited by neutron82; 11-14-2018 at 08:38 PM.
Old 11-15-2018, 02:34 AM
  #26  
StrangelovesM6Vert
Le Mans Master
 
StrangelovesM6Vert's Avatar
 
Member Since: Jul 2013
Posts: 5,699
Likes: 0
Received 144 Likes on 123 Posts
Default

Originally Posted by tabbruzz
I am confused as to why it boost would be that low. This is the lowest that I have heard. I assume you do not have a stock engine....Do you? mods??
It's stock except for the longtubes.
Boost is a measure of restriction.
I'm happy with it.
Quick like a bike and breaks the tires loose in 3rd gear (M6)

Last edited by StrangelovesM6Vert; 11-15-2018 at 02:36 AM.
Old 11-15-2018, 11:23 AM
  #27  
tabbruzz
Safety Car
Thread Starter
 
tabbruzz's Avatar
 
Member Since: Feb 1999
Location: Central NJ
Posts: 3,912
Received 289 Likes on 214 Posts

Default

Originally Posted by neutron82
you also have to take into account how high the car is being revved... if they are cutting the rpms short, say 5500, then that will also explain the boost seeming low... rap it out to 6500+ and then you may see the 10-12psi you want... the impeller speed will also make a difference, for example you could use an overdrive balancer to turn the blower harder and make a higher boost number than you would with the same blower pulley and stock balancer with both being revved to the same rpm
Good point!!!!
Old 11-15-2018, 11:25 AM
  #28  
tabbruzz
Safety Car
Thread Starter
 
tabbruzz's Avatar
 
Member Since: Feb 1999
Location: Central NJ
Posts: 3,912
Received 289 Likes on 214 Posts

Default

Originally Posted by StrangelovesM6Vert
It's stock except for the longtubes.
Boost is a measure of restriction.
I'm happy with it.
Quick like a bike and breaks the tires loose in 3rd gear (M6)
Sounds good then...I won't truly know until mine is installed....
Old 11-20-2018, 01:55 PM
  #29  
Darion
Safety Car
 
Darion's Avatar
 
Member Since: Aug 2004
Location: Youngstown Ohio
Posts: 4,734
Received 232 Likes on 142 Posts

Default


Front view, all I do is scrape the black parts on speed bumps. Lowered on stock bolts and Hotchkis bars front and rear. I have no issues with clearance and have Kooks longtubs.

Apologies for the long wait.
Old 11-20-2018, 02:26 PM
  #30  
tabbruzz
Safety Car
Thread Starter
 
tabbruzz's Avatar
 
Member Since: Feb 1999
Location: Central NJ
Posts: 3,912
Received 289 Likes on 214 Posts

Default

Originally Posted by Darion

Front view, all I do is scrape the black parts on speed bumps. Lowered on stock bolts and Hotchkis bars front and rear. I have no issues with clearance and have Kooks longtubs.

Apologies for the long wait.
Perfect, when you say black parts are you referring to the plastic air dams that hang down and not the metal fangs(which is part of the support that was lowered for the SC install)???? I really appreciate the pics
Old 11-20-2018, 05:21 PM
  #31  
Darion
Safety Car
 
Darion's Avatar
 
Member Since: Aug 2004
Location: Youngstown Ohio
Posts: 4,734
Received 232 Likes on 142 Posts

Default

Originally Posted by tabbruzz
Perfect, when you say black parts are you referring to the plastic air dams that hang down and not the metal fangs(which is part of the support that was lowered for the SC install)???? I really appreciate the pics
yup, the plastic air dams, sounds awful when they scrape in the car but hasn't amounted to as anything. One thing to keep an eye on though is how much debris you pick up in the radiator. Every year around fall when the leaves come down I get more than a few up there, I also found a dead finch few years back.

PC
Old 11-20-2018, 07:42 PM
  #32  
tabbruzz
Safety Car
Thread Starter
 
tabbruzz's Avatar
 
Member Since: Feb 1999
Location: Central NJ
Posts: 3,912
Received 289 Likes on 214 Posts

Default

Originally Posted by Darion
yup, the plastic air dams, sounds awful when they scrape in the car but hasn't amounted to as anything. One thing to keep an eye on though is how much debris you pick up in the radiator. Every year around fall when the leaves come down I get more than a few up there, I also found a dead finch few years back.

PC
Yes, I have issues with leaves right now...that car sucks up everything



Quick Reply: Close to pulling trigger in A&A- have question on lowered car



All times are GMT -4. The time now is 04:25 AM.