TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

1991 Magazine Test with AS&M vs First

Thread Tools
 
Search this Thread
 
Old 04-07-2024, 09:41 AM
  #1  
Member
Thread Starter
 
MrIROBZ's Avatar
 
Join Date: Dec 2023
Location: Central Texas
Posts: 215
Received 86 Likes on 70 Posts
Car: 1987 L98 IROC-Z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.27 9 Bolt
1991 Magazine Test with AS&M vs First

Its attached in PDF file for anyone wanting to read a blast from the past.
Attached Files
The following users liked this post:
bloodhound1 (04-07-2024)
Old 04-08-2024, 03:17 PM
  #2  
Supreme Member

iTrader: (8)
 
topduarte's Avatar
 
Join Date: May 2001
Location: Pflugerville, Texas
Posts: 1,342
Received 434 Likes on 263 Posts
Car: 92 Heritage Camaro Z28
Engine: 350 TPI
Transmission: auto
Axle/Gears: 3.23 Limited Slip
Re: 1991 Magazine Test with AS&M vs First

Thanks.

Can you send me a scan of the cop cars frcam hell article?
Old 04-08-2024, 03:42 PM
  #3  
Member
Thread Starter
 
MrIROBZ's Avatar
 
Join Date: Dec 2023
Location: Central Texas
Posts: 215
Received 86 Likes on 70 Posts
Car: 1987 L98 IROC-Z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 3.27 9 Bolt
Re: 1991 Magazine Test with AS&M vs First

Originally Posted by topduarte
Thanks.

Can you send me a scan of the cop cars frcam hell article?
Unfortunately I dont have the entire magazine. This was courtesy of Jim and Arizona Speed and Marine. I figured id post it for fun.
Old 04-08-2024, 07:15 PM
  #4  
Supreme Member

iTrader: (8)
 
topduarte's Avatar
 
Join Date: May 2001
Location: Pflugerville, Texas
Posts: 1,342
Received 434 Likes on 263 Posts
Car: 92 Heritage Camaro Z28
Engine: 350 TPI
Transmission: auto
Axle/Gears: 3.23 Limited Slip
Re: 1991 Magazine Test with AS&M vs First

No worries
Old 04-08-2024, 07:49 PM
  #5  
Supreme Member

 
Tom 400 CFI's Avatar
 
Join Date: Oct 2000
Location: Park City, UT
Posts: 1,977
Received 300 Likes on 206 Posts
Car: '92 Corvette, '89 1/2-a-'Vette
Engine: LT1, L98
Transmission: ZF6, ZF6
Axle/Gears: 3.45, 3.31
Re: 1991 Magazine Test with AS&M vs First

Cool article....I assume the engine was a 350? It didn't say...or I didn't see it.
Old 04-09-2024, 08:43 AM
  #6  
Supreme Member

iTrader: (8)
 
TTOP350's Avatar
 
Join Date: Oct 2001
Location: Il
Posts: 11,731
Received 778 Likes on 523 Posts
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: 1991 Magazine Test with AS&M vs First

Wish my phone could open-pdf files but got it on computer. Pretty sure i have that magazine.

Last edited by TTOP350; 04-09-2024 at 09:40 AM.
Old 04-11-2024, 06:52 AM
  #7  
Supreme Member

 
BadSS's Avatar
 
Join Date: Sep 2000
Location: USA
Posts: 1,388
Received 78 Likes on 64 Posts
Re: 1991 Magazine Test with AS&M vs First

I actually have that 1991 Car Craft magazine and always thought something was a little off with it. The AZ Speed TPI system made more HP than the FIRST (Electromotive) and the Super Ram. I know the AZSM base was extruded honed, but it still can't flow what the FIRST can out of the box. I was thinking it might have been that they didn't know how to tune with the Electromotive system. That's the only thing I can think of.




Here's one from a 1989 Car Craft. All these intakes did about what you would expect them to do.



Edit: The above was a stock Corvette L98 with Camaro manifolds and dual cat exhaust system.

Last edited by BadSS; 04-11-2024 at 01:30 PM.
Old 04-11-2024, 09:36 AM
  #8  
Supreme Member

 
skinny z's Avatar
 
Join Date: Dec 2005
Location: Alberta
Posts: 9,187
Received 642 Likes on 542 Posts
Re: 1991 Magazine Test with AS&M vs First

I see intake runner lengths that are all over the map.
Anyone correlated that with HP and TQ RPM peaks?
1 5/8" headers. Good.
Edelbrock Performer RPM cam? Odd.
No mention of compression ratio.
That said, the engine base is the same through out so other than fueling maps, it's probably the best comparison of intakes seen to date.
Old 04-11-2024, 11:20 AM
  #9  
Supreme Member

 
Tom 400 CFI's Avatar
 
Join Date: Oct 2000
Location: Park City, UT
Posts: 1,977
Received 300 Likes on 206 Posts
Car: '92 Corvette, '89 1/2-a-'Vette
Engine: LT1, L98
Transmission: ZF6, ZF6
Axle/Gears: 3.45, 3.31
Re: 1991 Magazine Test with AS&M vs First

The info on the test engine is lacking. We don't even know what size the thing is.


Originally Posted by BadSS
I actually have that 1991 Car Craft magazine and always thought something was a little off with it. The AZ Speed TPI system made more HP than the FIRST (Electromotive) and the Super Ram.
I thought the outcome was odd too. It was sort of the opposite of what I've seen so far in my own "Hot 80's Intakes!" tests. Not that any one test is the end-all, but the results of this one seemed weird to me, too.
The following users liked this post:
skinny z (04-11-2024)
Old 04-11-2024, 03:44 PM
  #10  
Supreme Member

 
BadSS's Avatar
 
Join Date: Sep 2000
Location: USA
Posts: 1,388
Received 78 Likes on 64 Posts
Re: 1991 Magazine Test with AS&M vs First

Originally Posted by Tom 400 CFI
The info on the test engine is lacking. We don't even know what size the thing is..
Edited post to include engine info
Old 04-11-2024, 05:49 PM
  #11  
Supreme Member

 
Tom 400 CFI's Avatar
 
Join Date: Oct 2000
Location: Park City, UT
Posts: 1,977
Received 300 Likes on 206 Posts
Car: '92 Corvette, '89 1/2-a-'Vette
Engine: LT1, L98
Transmission: ZF6, ZF6
Axle/Gears: 3.45, 3.31
Re: 1991 Magazine Test with AS&M vs First

Thanks. I was actually talking about the article in the first post, but your (the one in the chart that you posted) engine info is good to have too.


Those F-bod manifolds must have really hurt that thing. Those gross numbers are lower than the wheel numbers that I got, so far.

Last edited by Tom 400 CFI; 04-11-2024 at 05:53 PM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
formulafastfoot
Body
1
02-28-2006 05:27 PM
Mr. Pibb
Body
7
08-08-2001 08:09 PM
Mr. Pibb
TBI
2
08-08-2001 11:25 AM



Quick Reply: 1991 Magazine Test with AS&M vs First



All times are GMT -5. The time now is 08:01 PM.