Question about HVMC's.
Originally Posted by Iron Sights
There isn't much of a gain to be had with stock internals, but SouthFl.02.SS posted a ~40rwhp gain with HVMC and a 90/90 on a H/C car.
The 90/90 setup alone should net like 25 rwhp, and going from SLP to QTP (especially if it needs bigger headers) could be worth anywhere from 5-15 rwhp. I would guess that the HVMC might be worth 5 rwhp. Just a guess...I can't imagine that they could make a huge difference, or QTP would have dyno results all over this board showing how much better they are.
Originally Posted by matts22
...I can't imagine that they could make a huge difference, or QTP would have dyno results all over this board showing how much better they are.
TECH Resident
Joined: Aug 2005
Posts: 762
Likes: 0
Originally Posted by TheBlurLS1
....and Kooks would sell them....
There is a member on here that gained like 8-10hp and even more in tq over his old standdard qtp headers. But its not just about the peak numbers. Because of the increased scavanging you will gain more across the board.
Originally Posted by Order 66
As matter of fact they have a merge style collector on there corvette headers. As well as LG, Edelbrock and ARH. So i think QTP knew what they where doing 4 years ago and it seems everyone now has a "merge style collector" now. I wonder why??
There is a member on here that gained like 8-10hp and even more in tq over his old standdard qtp headers. But its not just about the peak numbers. Because of the increased scavanging you will gain more across the board.
There is a member on here that gained like 8-10hp and even more in tq over his old standdard qtp headers. But its not just about the peak numbers. Because of the increased scavanging you will gain more across the board.
Trending Topics
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Originally Posted by matts22
Yeah but he was replacing SLP 1 3/4 headers with 1 7/8 QTP HVMC if I remember correctly.
The 90/90 setup alone should net like 25 rwhp, and going from SLP to QTP (especially if it needs bigger headers) could be worth anywhere from 5-15 rwhp. I would guess that the HVMC might be worth 5 rwhp. Just a guess...I can't imagine that they could make a huge difference, or QTP would have dyno results all over this board showing how much better they are.
The 90/90 setup alone should net like 25 rwhp, and going from SLP to QTP (especially if it needs bigger headers) could be worth anywhere from 5-15 rwhp. I would guess that the HVMC might be worth 5 rwhp. Just a guess...I can't imagine that they could make a huge difference, or QTP would have dyno results all over this board showing how much better they are.
Rebadged QTP at the time. No longer the case.It was a 35rwhp gain (460-425=35rwhp).
Here's the graph (graph didn't reflect 460rwhp pull, nor did it reflect the old 425rwhp pull, but it did reflect the change in the curve well):
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Originally Posted by SouthFL.02.SS
It was a straight up 1 3/4" to 1 3/4" swap. Kooks made my headers Rebadged QTP at the time. No longer the case.
It was a 35rwhp gain (460-425=35rwhp).
Here's the graph (graph didn't reflect 460rwhp pull, nor did it reflect the old 425rwhp pull, but it did reflect the change in the curve well):
Rebadged QTP at the time. No longer the case.It was a 35rwhp gain (460-425=35rwhp).
Here's the graph (graph didn't reflect 460rwhp pull, nor did it reflect the old 425rwhp pull, but it did reflect the change in the curve well):
Does the 35 rwhp include the 90/90 setup? Were you going from a LS1 or LS6 intake? Was the old throttle body stock or ported? Is your FAST intake that you have now ported?
Thanks for clearing things up!
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Originally Posted by matts22
Thanks man! I was looking for your info and couldn't find it.
Does the 35 rwhp include the 90/90 setup? Were you going from a LS1 or LS6 intake? Was the old throttle body stock or ported? Is your FAST intake that you have now ported?
Thanks for clearing things up!
Does the 35 rwhp include the 90/90 setup? Were you going from a LS1 or LS6 intake? Was the old throttle body stock or ported? Is your FAST intake that you have now ported?
Thanks for clearing things up!
-35rwhp includes both the 90/90 and the HVMC.
-Coming from an LS6 intake with a Jantzer ported TB
-90mm FAST intake was unported
Cheers.
