Vmax Velocity Ring
Thread Starter
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Vmax Velocity Ring
I was looking at the Vmax Velocity Ring. It make sense to me that the step from a 90MM TB to a 102MM intake is not smooth, so that step could impact performance.
Has anyone tried one?
Thanks!
Has anyone tried one?
Thanks!
Melting Slicks
Joined: Sep 2008
Posts: 2,286
Likes: 4
Jeff
Thread Starter
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Thanks! I will give it a try with a tune and see what happens. I will let you know.
Drifting
Joined: Feb 2010
Posts: 1,527
Likes: 34
All those gadgets including spiral machined finish all claims to do this and that to the incoming air and contributes to do this and that to your performance!
---
Once that "improved" air flow gets passed the throttle body along with "Velocity Ring" and into the cavity of the IM, with all those formed snorkels that feed air into each of the combustion chamber. This scenario tells me that, whatever characteristic of the air flow will be neutralized/negated by the sheer designed nature of uneven shapes and large volume within the IM internal. In other words, that previous "improved" air simply becomes an air mass, dwelling within the IM cavern, available for the intake vacuum!
---
However, if such air flows directly into just one cavity without interruptions, there is certain benefit. Such as "porting" IM runner with intake port, which offers an direct and immediate benefit!
---
Opinion from one skeptic!
---
Once that "improved" air flow gets passed the throttle body along with "Velocity Ring" and into the cavity of the IM, with all those formed snorkels that feed air into each of the combustion chamber. This scenario tells me that, whatever characteristic of the air flow will be neutralized/negated by the sheer designed nature of uneven shapes and large volume within the IM internal. In other words, that previous "improved" air simply becomes an air mass, dwelling within the IM cavern, available for the intake vacuum!
---
However, if such air flows directly into just one cavity without interruptions, there is certain benefit. Such as "porting" IM runner with intake port, which offers an direct and immediate benefit!
---
Opinion from one skeptic!
Melting Slicks
Joined: Sep 2008
Posts: 2,286
Likes: 4
Victorf, I am in agreement with you. I would like to see some performance data of the NW 102mm TB with the Fast 102 intake. I haven't heard much about it. I think if anything would work better, that would be the way to go.
Jeff
Jeff
Thread Starter
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
My guy in Detroit agrees with both of you. On a engine dyno, a stock throttle body is good to 1,000 HP. He hasn't tried the VMAX ring, but the theory passes the smell test.
Drifting
Joined: Sep 2004
Posts: 1,912
Likes: 33
From: S.D. CA
I think CMS did some dyno results on this...I'd have to search for the thread.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
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
Drifting
Joined: Sep 2004
Posts: 1,912
Likes: 33
From: S.D. CA
Drifting
Joined: Feb 2010
Posts: 1,527
Likes: 34
Large volume certainly offers benefit. As in forced injection - principle of packing in larger air volume at an given space along with adjusted fuel to compensate. That is a formula historically proven!
But transitional step taper? Such as a machined short taper ring, starts from an given 90/92mm opening at one end and the opposite end with machined taper to 102mm? What does it do to provide, in terms of volume change? Isn't it still a 90/92mm opening?
Another reason being a skeptic!
Unless available facts convinced me otherwise, right now, I regard it along with spiral machined finish, Sham-Wow and Tornado!
But transitional step taper? Such as a machined short taper ring, starts from an given 90/92mm opening at one end and the opposite end with machined taper to 102mm? What does it do to provide, in terms of volume change? Isn't it still a 90/92mm opening?
Another reason being a skeptic!
Unless available facts convinced me otherwise, right now, I regard it along with spiral machined finish, Sham-Wow and Tornado!
Thread Starter
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Large volume certainly offers benefit. As in forced injection - principle of packing in larger air volume at an given space along with adjusted fuel to compensate. That is a formula historically proven!
But transitional step taper? Such as a machined short taper ring, starts from an given 90/92mm opening at one end and the opposite end with machined taper to 102mm? What does it do to provide, in terms of volume change? Isn't it still a 90/92mm opening?
Another reason being a skeptic!
Unless available facts convinced me otherwise, right now, I regard it along with spiral machined finish, Sham-Wow and Tornado!
But transitional step taper? Such as a machined short taper ring, starts from an given 90/92mm opening at one end and the opposite end with machined taper to 102mm? What does it do to provide, in terms of volume change? Isn't it still a 90/92mm opening?
Another reason being a skeptic!
Unless available facts convinced me otherwise, right now, I regard it along with spiral machined finish, Sham-Wow and Tornado!
I am going to see if I my guy in Michigan is building any engines with FAST 102 intakes and will send him the ring to see if makes any difference on the dyno.
Drifting
Joined: Sep 2004
Posts: 1,912
Likes: 33
From: S.D. CA
The reason for the ring is some people were experiencing problems at low rpms. The ring is supposed to stop the air from stalling at that "step" when the velocity of the air flow is lower.
Its a drivability product...no need to group it with the sham-wow/tornado...
Its a drivability product...no need to group it with the sham-wow/tornado...
Drifting
Joined: Feb 2010
Posts: 1,527
Likes: 34
I agree with what you said. The reason I think the thing works is becasue it takes the step out of the air going into the engine.
I am going to see if I my guy in Michigan is building any engines with FAST 102 intakes and will send him the ring to see if makes any difference on the dyno.
I am going to see if I my guy in Michigan is building any engines with FAST 102 intakes and will send him the ring to see if makes any difference on the dyno.
Thanks for staying curious and taking the extra effort to find truth!
Unless it is something like "without a doubt" - the drastic SOTP feel of after headers installation without even dyno, claims of 5 hp on dyno gains could be just time of day thing. And some after the install and say "Yea, a lot smoother", well, who are these guys!
Right now remaining a skeptic on the products I'v mentioned!
Racer
Joined: Nov 2008
Posts: 381
Likes: 5
From: Warminster Penna.
With a re tune rwhp went from 645 to 721 rwhp and 655 rwtq. When I had a FAST 90 on this engine it only has 665 RWHP. Fast 102 and v ring will make a difference as long as you get a GOOD tune done when you are done.
See Sig for mods.