Variable boost controller? Possible?
Thread Starter
Pro
Joined: Sep 2011
Posts: 568
Likes: 27
From: nj
Variable boost controller? Possible?
Hey guys I'm running a vortech v2 9 lbs of boost. Once the car is tuned for the 9 psi. Would I be able to run a variable boost controller on my greddy blow off valve to relieve boost pressure to let's say 6 psi. Reason being I want to drop hp when not at the track. And if this impossible once the car is tuned would dropping to less psi need a different tune or would the lower boost be recognized and the ECM adjust accordingly?
Melting Slicks
Joined: Jul 2004
Posts: 2,844
Likes: 144
From: Northern Ireland
Hey guys I'm running a vortech v2 9 lbs of boost. Once the car is tuned for the 9 psi. Would I be able to run a variable boost controller on my greddy blow off valve to relieve boost pressure to let's say 6 psi. Reason being I want to drop hp when not at the track. And if this impossible once the car is tuned would dropping to less psi need a different tune or would the lower boost be recognized and the ECM adjust accordingly?
And the Greddy may or may not be suitable. Depends how soft the springs are and whether you have access to the bottom port of the diaphragm in order to blow it open.
You're ecu must be tuned for all load sites you will use. So if you did alter boost like that, you would need to ensure all those load sites were tuned too.
Thread Starter
Pro
Joined: Sep 2011
Posts: 568
Likes: 27
From: nj
If you're only using 9psi to start with, it really wouldnt be worth the effort.
And the Greddy may or may not be suitable. Depends how soft the springs are and whether you have access to the bottom port of the diaphragm in order to blow it open.
You're ecu must be tuned for all load sites you will use. So if you did alter boost like that, you would need to ensure all those load sites were tuned too.
And the Greddy may or may not be suitable. Depends how soft the springs are and whether you have access to the bottom port of the diaphragm in order to blow it open.
You're ecu must be tuned for all load sites you will use. So if you did alter boost like that, you would need to ensure all those load sites were tuned too.
Racer
Joined: Mar 2011
Posts: 377
Likes: 3
From: Cudahy WI
Bad idea, you would be overspinning your supercharger and wasting energy to compress air just to dump it off.
Pulley it down to 6 psi for street driving if you wish or get a turbo system with adjustable wastegates that let you control boost.
Pulley it down to 6 psi for street driving if you wish or get a turbo system with adjustable wastegates that let you control boost.
Melting Slicks
Joined: Jul 2004
Posts: 2,844
Likes: 144
From: Northern Ireland
So whilst there will be some wastage, it isnt huge. And certainly not at such a low boost level.
But for such a low boost level to start with, trying to reduce it further would be totally pointless.
Drifting
Joined: Aug 2004
Posts: 1,561
Likes: 0
From: silver creek ga
No it works great we were at 30 lbs with a f1r and we used wastgate and a ams 500 and it worked great. We were on a cog set up and was hard to just change a pullie. We called Steve Morris and he sent me everything I needed and worked like a charm.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
Melting Slicks
Joined: Jul 2004
Posts: 2,844
Likes: 144
From: Northern Ireland
So I can adjust boost by gear or rpm anywhere from 7psi to about 23/24psi
Oddly though, even with huge traction loss on the street, accel times between speeds dont really change very much between full traction, and no traction/feathering the throttle. It's just finding the right balance between the two.
Safety does massively improve though.
Melting Slicks
Joined: Nov 2006
Posts: 2,836
Likes: 8
From: Still the Fastest (still running) Stock Bottom End Blown LS1/ 2010 ECS CC 10.50 CHAMP Hamilton, NJ
ECS made the setup for me, works very nice.