Team ZR-1 Corvette Racers
Custom Tuning
>Enter Here
Test and Tune
Common Information
C8.R CORVETTE RACING AT VIR 2021
by teamzr1. 10/19/21 11:35 AM
2021 C8 has multi $$ Damage from gettiing Gas
by teamzr1. 10/18/21 11:08 AM
2022-23 C8 Corvette E-Ray Hybrid Prototype ?
by teamzr1. 10/12/21 06:41 PM
See GM's 1st look at the C8 Z06 on 10/26/21
by teamzr1. 10/08/21 11:15 AM
Want to buy new C8s really cheap ?
by teamzr1. 10/06/21 02:07 PM
GM Released Ad for C8 Z06
by teamzr1. 09/27/21 02:04 PM
2021 IMSA Long Beach - C8Rs Battle
by teamzr1. 09/25/21 07:31 PM
Newer Corvettes
Inside the C8's DCT
by teamzr1. 10/08/21 05:28 PM
C8 owner issues when racing his C8 Z51
by teamzr1. 10/05/21 10:10 AM
Teammate Bob B has some viewpoint in his C8
by teamzr1. 10/05/21 09:45 AM
Tech Talk
GM Says Black Smoke Normal
by teamzr1. 09/29/21 05:29 PM
Forum Statistics
Forums26
Topics2,973
Posts5,117
Members42
Most Online94
Sep 24th, 2015
Previous Thread
Next Thread
Print Thread
Rate This Thread
Page 3 of 3 1 2 3
#3128 - 08/26/09 02:01 PM Re: Team ZR-1 X-Pipe project [Re: teamzr1]  
Joined: Dec 2000
Posts: 4,248
teamzr1 Offline
Owner - Pays the bills
teamzr1  Offline
Owner - Pays the bills
Lives in Engine Bay

Joined: Dec 2000
Posts: 4,248
America
Here is results of before the NFW exhaust was installed and then with it on.
This is with the full length design with the tailpipes.

Weather was 85 degrees adding 1,500 feet to the 4,000 feet elevation tests were done at
Notice the lower torque comes up sooner and faster now with the end to end system being 3 inch


Attached Files NFWcmp.jpgNFWcmp2.jpg

Team ZR-1
True Custom Performance Tuning
Teamzr1.com
Team ZR-1 Store
Enter Here
#3133 - 08/30/09 03:54 PM Re: Team ZR-1 X-Pipe project [Re: teamzr1]  
Joined: Dec 2000
Posts: 4,248
teamzr1 Offline
Owner - Pays the bills
teamzr1  Offline
Owner - Pays the bills
Lives in Engine Bay

Joined: Dec 2000
Posts: 4,248
America
Design testing of end of tailpipes 2,5 and 8 inch longer then in design 2.
Each additional length to bring end of tailpipes further away from underside reduced sound level in drivers are from mid 80s DBA to 78 DBA at idle but no loss to sound level at the end of tailpipes.





Attached Files exttips.jpgexttip3.jpgexttip2.jpgextips4.jpg

Team ZR-1
True Custom Performance Tuning
Teamzr1.com
#3273 - 01/23/10 09:31 PM Re: Team ZR-1 X-Pipe project [Re: teamzr1]  
Joined: Dec 2000
Posts: 4,248
teamzr1 Offline
Owner - Pays the bills
teamzr1  Offline
Owner - Pays the bills
Lives in Engine Bay

Joined: Dec 2000
Posts: 4,248
America
Final testrun of the NFW Team ZR-1 custom exhaust design with the double wall end tips which are stainless steel
Inlet is 3 inch with 4 inch outlet.



Team ZR-1
True Custom Performance Tuning
Teamzr1.com
#3294 - 02/18/10 05:19 PM Re: Team ZR-1 X-Pipe project [Re: teamzr1]  
Joined: Dec 2000
Posts: 4,248
teamzr1 Offline
Owner - Pays the bills
teamzr1  Offline
Owner - Pays the bills
Lives in Engine Bay

Joined: Dec 2000
Posts: 4,248
America
Winter test of our NFW exhaust design
Weather 36 degrees and cloudy. Windows up and radio on and off to see if internal exhaust sound was at a proper dBA level.



Part throttle to WOT


WOT



Recorded performance data during the WOT run in part from zero to 110 MPH


Attached Files allgas.jpg

Team ZR-1
True Custom Performance Tuning
Teamzr1.com
#3297 - 02/28/10 05:49 PM Re: Team ZR-1 X-Pipe project [Re: teamzr1]  
Joined: Dec 2000
Posts: 4,248
teamzr1 Offline
Owner - Pays the bills
teamzr1  Offline
Owner - Pays the bills
Lives in Engine Bay

Joined: Dec 2000
Posts: 4,248
America
Team ZR-1 Corvette Racers NFW custom exhaust test at 60 degrees and windows closed.

Part throttle



WOT run



Team ZR-1
True Custom Performance Tuning
Teamzr1.com
#3298 - 03/01/10 04:37 PM Re: Team ZR-1 X-Pipe project [Re: teamzr1]  
Joined: Dec 2000
Posts: 4,248
teamzr1 Offline
Owner - Pays the bills
teamzr1  Offline
Owner - Pays the bills
Lives in Engine Bay

Joined: Dec 2000
Posts: 4,248
America
Here is idle with windows open and then closed
Measuring sound at the tailpipe tips is 94 dbA
where in drivers area sound level is only at 80 dbA with windows open and 77 dbA with windows closed



Here is stop/go city driving that includes both windows open, closed, drivers or passenger window open or closed, radio on and verbal talk
Weather 55 degrees and cloudy



Launch from a dead stop :



Team ZR-1
True Custom Performance Tuning
Teamzr1.com
#3307 - 03/14/10 01:00 PM Re: Team ZR-1 X-Pipe project [Re: teamzr1]  
Joined: Dec 2000
Posts: 4,248
teamzr1 Offline
Owner - Pays the bills
teamzr1  Offline
Owner - Pays the bills
Lives in Engine Bay

Joined: Dec 2000
Posts: 4,248
America
This is a cold start idle. Weather is only 42 degrees so normal to see water vapor until everything gets up to operating temp



Team ZR-1
True Custom Performance Tuning
Teamzr1.com
#3338 - 04/18/10 02:02 PM Re: Team ZR-1 X-Pipe project [Re: teamzr1]  
Joined: Dec 2000
Posts: 4,248
teamzr1 Offline
Owner - Pays the bills
teamzr1  Offline
Owner - Pays the bills
Lives in Engine Bay

Joined: Dec 2000
Posts: 4,248
America
70 degrees, windows closed, 4,000 feet elevation, up to 160 MPH



Team ZR-1
True Custom Performance Tuning
Teamzr1.com
#4206 - 09/17/18 10:51 AM Re: Team ZR-1 X-Pipe project [Re: teamzr1]  
Joined: Dec 2000
Posts: 4,248
teamzr1 Offline
Owner - Pays the bills
teamzr1  Offline
Owner - Pays the bills
Lives in Engine Bay

Joined: Dec 2000
Posts: 4,248
America
H vs X pipe exhaust system

Again in either case you want them to be located as close to collectors as possible



Team ZR-1
True Custom Performance Tuning
Teamzr1.com
#4334 - 05/25/19 03:53 PM Re: Team ZR-1 X-Pipe project [Re: teamzr1]  
Joined: Dec 2000
Posts: 4,248
teamzr1 Offline
Owner - Pays the bills
teamzr1  Offline
Owner - Pays the bills
Lives in Engine Bay

Joined: Dec 2000
Posts: 4,248
America
Compare after 10 years of my custom NFW exhaust design on July 5th 2019
Bullet mufflers used still sounds good, has not degraded over these years

Weather 80 F Degrees, A/C off and windows closed



Team ZR-1
True Custom Performance Tuning
Teamzr1.com
Page 3 of 3 1 2 3

Moderated by  teamzr1 

Who's Online Now
0 registered members (), 11 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
What's New
2021 C8 has multi $$ Damage from gettiing Gas
by teamzr1. 10/18/21 11:08 AM
2022-23 C8 Corvette E-Ray Hybrid Prototype ?
by teamzr1. 10/12/21 06:41 PM
Inside the C8's DCT
by teamzr1. 10/08/21 05:28 PM
See GM's 1st look at the C8 Z06 on 10/26/21
by teamzr1. 10/08/21 11:15 AM
Want to buy new C8s really cheap ?
by teamzr1. 10/06/21 01:38 PM
C8.R CORVETTE RACING AT VIR 2021
by teamzr1. 10/05/21 12:41 PM
Popular Topics(Views)
Techie
Inside the C8's DCT
by teamzr1. 10/08/21 05:28 PM
C8 owner issues when racing his C8 Z51
by teamzr1. 10/05/21 10:10 AM
Teammate Bob B has some viewpoint in his C8
by teamzr1. 10/05/21 09:45 AM
GM Says Black Smoke Normal
by teamzr1. 09/29/21 05:29 PM
Powered by UBB.threads™ PHP Forum Software 7.6.0