#1  
Old 10-15-2024, 08:51 PM
slowbird's Avatar
slowbird slowbird is offline
Ultimate Warrior
 
Join Date: Jan 2001
Location: Montgomery, IL
Posts: 10,802
Default Ported Victor vs ported NorthWind dyno test

We tested the Victor vs the NorthWind today. Both portedby same guy (Johnny from CFM South), both ran the same 2" tapered spacer and same carb.
I was somewhat surprised by the results.
Intake is written on top of sheets
Attached Thumbnails
Click image for larger version

Name:	20241015_141303.jpg
Views:	393
Size:	42.9 KB
ID:	641295   Click image for larger version

Name:	20241015_141035.jpg
Views:	290
Size:	51.5 KB
ID:	641296  

The Following 3 Users Say Thank You to slowbird For This Useful Post:
  #2  
Old 10-15-2024, 10:48 PM
R 70 Judge's Avatar
R 70 Judge R 70 Judge is offline
Ultimate Warrior
 
Join Date: Mar 2002
Location: San Diego, CA
Posts: 2,800
Default

Cool test! When you factor in that the northwind is 1.2” shorter than the Victor it is actually impressive it nearly kept up. I appreciate you putting in the effort for back to back testing.

__________________
James
1970 Trans Am

Spotts Built 484" IA2, Highports, EFI Northwind, E85
Holley Terminator X sequential EFI fabrication and suspension by
https://www.funkhouserracecars.com/
  #3  
Old 10-15-2024, 10:49 PM
PAUL K's Avatar
PAUL K PAUL K is offline
Ultimate Warrior
 
Join Date: Feb 2004
Location: Sugar Grove IL USA
Posts: 6,985
Default

Excellent test Slowbird.... Thanks for sharing the results

__________________
Go fast, see Elvis!
www.facebook.com/PaulKnippensMuscleMotors
  #4  
Old 10-16-2024, 07:44 AM
chuckies76ta's Avatar
chuckies76ta chuckies76ta is offline
Ultimate Warrior
 
Join Date: Jun 2004
Location: Alberta
Posts: 3,290
Default

Thanks for posting.

__________________
68 Firebird. IA2 block, 505 cu in, SD Performance E-head, Solid roller 3600 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 9.95@134 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.
  #5  
Old 10-16-2024, 09:28 AM
Skip Fix's Avatar
Skip Fix Skip Fix is offline
Ultimate Warrior
 
Join Date: Dec 1999
Location: Katy,TX USA
Posts: 21,049
Default

Thanks for sharing. It would be interesting to see what the difference would be no spacer as the NW being lower seems to be tighter into the ports and might be uses for those with hood clearance issues without spacers..

__________________
Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4-sold
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
The Following User Says Thank You to Skip Fix For This Useful Post:
  #6  
Old 10-16-2024, 11:27 AM
67Fbird's Avatar
67Fbird 67Fbird is offline
Chief Ponti-yacker
 
Join Date: Mar 2021
Location: GA
Posts: 515
Default

^^^ about what Chuck at Butler told me about my TA. Given hood clearance issues the Northwind WILL fit under the shaker and only give up a little bit vs the Victor. We are putting together a top- end package for my 455 and it MUST stay under the shaker Thanks for the data Slow bird!


Last edited by 67Fbird; 10-16-2024 at 11:54 AM.
  #7  
Old 10-16-2024, 01:28 PM
Skip Fix's Avatar
Skip Fix Skip Fix is offline
Ultimate Warrior
 
Join Date: Dec 1999
Location: Katy,TX USA
Posts: 21,049
Default

Not sure how it is going to fit a Shaker unless it is on the hood. My 78 a T2 barely fits!

__________________
Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4-sold
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
  #8  
Old 10-16-2024, 02:41 PM
chuckies76ta's Avatar
chuckies76ta chuckies76ta is offline
Ultimate Warrior
 
Join Date: Jun 2004
Location: Alberta
Posts: 3,290
Default

Quote:
Originally Posted by 67Fbird View Post
^^^ about what Chuck at Butler told me about my TA. Given hood clearance issues the Northwind WILL fit under the shaker and only give up a little bit vs the Victor. We are putting together a top- end package for my 455 and it MUST stay under the shaker Thanks for the data Slow bird!

Pretty sure you will need to do what Dave this to this 4150 intake. Intake on left is N.W versus Victor
Attached Thumbnails
Click image for larger version

Name:	IMG_5931(1).jpg
Views:	281
Size:	74.0 KB
ID:	641345  

__________________
68 Firebird. IA2 block, 505 cu in, SD Performance E-head, Solid roller 3600 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 9.95@134 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.
The Following User Says Thank You to chuckies76ta For This Useful Post:
  #9  
Old 10-16-2024, 08:00 PM
Skip Fix's Avatar
Skip Fix Skip Fix is offline
Ultimate Warrior
 
Join Date: Dec 1999
Location: Katy,TX USA
Posts: 21,049
Default

pictures on Facebook look like you took out the cloverleaf to a mainly square opening.

__________________
Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4-sold
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
  #10  
Old 10-17-2024, 03:09 PM
adam woodmancy's Avatar
adam woodmancy adam woodmancy is offline
Ultimate Warrior
 
Join Date: Apr 2005
Location: Manito, IL
Posts: 2,133
Send a message via AIM to adam woodmancy
Default

Thanks for the info, I am going to the northwind this winter on my setup, been running the victor with no spacer and can just barely keep my flat hood with foam glued to the front of the air cleaner lid where it makes contact.

  #11  
Old 10-17-2024, 03:17 PM
steve25's Avatar
steve25 steve25 is offline
Ultimate Warrior
 
Join Date: May 2008
Location: Westchester NY
Posts: 16,132
Default

Your BSFC numbers are scary on the lean side to me.

All too often well below .400.

__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!

1) 1940s 100% silver 4 cup tea server set.

Two dry rotted 14 x 10 Micky Thompson slicks.

1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.

Education is what your left with once you forget things!
  #12  
Old 10-17-2024, 03:47 PM
Steve C. Steve C. is offline
Ultimate Warrior
 
Join Date: Dec 1999
Location: Liberty Hill, Tx. (Austin)
Posts: 10,678
Default

A tip bit that could be of interest to some, and somewhat related......

On the Year One Bandit Trans Am project with a 535 combo Jim Butler used a Victor intake with the carb flange milled down 0.650" to help it fit under the hood.
With the cut down intake he used a WFO drop base unit for the TA Shaker scoop. Tested on the engine dyno at peak power rpm it gave up about 15 hp by milling the intake.

On my current 505 engine prior to the direct port fuel injection conversion I did the same thing with a Victor intake & HP950 carb using no carb spacer.
On the engine dyno I lost about 8-10 hp at peak power rpm after milling the intake flange 0.650".
My application is street only therefore I did not miss the 8-10 hp.

.

__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/

Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE
The Following User Says Thank You to Steve C. For This Useful Post:
  #13  
Old 10-21-2024, 01:48 AM
lust4speed's Avatar
lust4speed lust4speed is offline
Ultimate Warrior
 
Join Date: Jul 2002
Location: Yucaipa, SoCal
Posts: 8,803
Default

Just to help me out visualize the height, how does the North Wind without a spacer compare to the height of a Performer RPM? They seem like they are around the same height?

__________________
Mick Batson
1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon.
  #14  
Old 10-21-2024, 07:06 AM
chuckies76ta's Avatar
chuckies76ta chuckies76ta is offline
Ultimate Warrior
 
Join Date: Jun 2004
Location: Alberta
Posts: 3,290
Default

https://www.tinindianperformance.com...-measurements/

__________________
68 Firebird. IA2 block, 505 cu in, SD Performance E-head, Solid roller 3600 weight. Reid TH400 4:11 gear. 29" slick.
Best so far 9.95@134 mph. 1.43 60 ft.
76 Trans am, TKX .81 o/d, 3.73 Moser rearend,
468 with KRE D-ports, Doug headers, 3" Exh.
  #15  
Old 10-21-2024, 08:53 AM
Stan Weiss's Avatar
Stan Weiss Stan Weiss is offline
Ultimate Warrior
 
Join Date: Jul 2013
Location: Philadelphia, PA
Posts: 5,200
Default

Quote:
Originally Posted by steve25 View Post
Your BSFC numbers are scary on the lean side to me.

All too often well below .400.
Steve,
BSFC numbers an indicator of efficiency, and not an indicator of air fuel ratio.

Stan

__________________
Stan Weiss/World Wide Enterprises
Offering Performance Software Since 1987
http://www.magneticlynx.com/carfor/carfor.htm
David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software
http://www.magneticlynx.com/DV
Download FREE 14 Trial IOP / Flow Software
http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php
Pontiac Pump Gas List
http://www.magneticlynx.com/carfor/pont_gas.htm
Using PMD Block and Heads List
http://www.magneticlynx.com/carfor/pont_pmd.htm
  #16  
Old 10-30-2024, 09:25 PM
joes455 joes455 is offline
Chief Ponti-yacker
 
Join Date: Jul 2005
Location: North Fla
Posts: 990
Default

The NW would shine using a dominator flange

__________________
76 T/A 455, cnc chamber E heads,OF hyd roller ,yella terra shaft rockers 11.47 119
  #17  
Old 10-30-2024, 11:28 PM
slowbird's Avatar
slowbird slowbird is offline
Ultimate Warrior
 
Join Date: Jan 2001
Location: Montgomery, IL
Posts: 10,802
Default

Quote:
Originally Posted by joes455 View Post
The NW would shine using a dominator flange
It has a dominator flange in this test

  #18  
Old 10-31-2024, 08:57 PM
Matt1970gto Matt1970gto is offline
Member
 
Join Date: Apr 2024
Posts: 78
Default

Quote:
Originally Posted by adam woodmancy View Post
Thanks for the info, I am going to the northwind this winter on my setup, been running the victor with no spacer and can just barely keep my flat hood with foam glued to the front of the air cleaner lid where it makes contact.
You still a foot braking fool?

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:26 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017