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

Stock dyno results for a '91 Lb9 auto Trans Am....

Thread Tools
 
Search this Thread
 
Old Apr 9, 2005 | 03:45 PM
  #1  
BigWhiteGTP's Avatar
Thread Starter
Supreme Member
20 Year Member
 
Joined: Jan 2003
Posts: 2,043
Likes: 3
From: San Diego
Car: 1994 Trans Am
Engine: LT1
Transmission: Auto
Axle/Gears: 3.23
Stock dyno results for a '91 Lb9 auto Trans Am....

187whp and 260wtq! I'm stoked. Let me know your thoughts, if there are any.
Reply
Old Apr 10, 2005 | 06:19 PM
  #2  
BigWhiteGTP's Avatar
Thread Starter
Supreme Member
20 Year Member
 
Joined: Jan 2003
Posts: 2,043
Likes: 3
From: San Diego
Car: 1994 Trans Am
Engine: LT1
Transmission: Auto
Axle/Gears: 3.23
By all the replies, I guess this is either so incredibly awesome that know one can comprehend a reply, or..................this is the norm. So here are my questions.

1) I got 187 at the wheels for an auto, so that equates to about 230@ the crank. Aren't autos supposed to be around 210hp @ the crank?

2) If stock 5.0's have around 300lbs @ the crank, 20% drivetrain loss would put it at 240@ the wheels, right?

3) Why are my numbers higher than normal, or is this normal?
Reply
Old Apr 10, 2005 | 06:49 PM
  #3  
Red Devil's Avatar
Supreme Member
 
Joined: Apr 2000
Posts: 3,187
Likes: 0
From: E.B.F. TN
Car: Tree Huggers
Engine: Do Not
Transmission: Appreciate Me.
:shrug: Depends on the Dyno, depends on the tranny, depends on a few things. That's why 'k'no'w' one replies.
Reply
Old Apr 10, 2005 | 07:02 PM
  #4  
1989GTATransAm's Avatar
Supreme Member
iTrader: (3)
 
Joined: Sep 2003
Posts: 6,859
Likes: 14
From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
I'll just chime in and say yes those are good numbers for your combination. You just don't see dyno results on LB9's so it is hard to compare.
Reply
Old Apr 11, 2005 | 04:05 PM
  #5  
bnoon's Avatar
Supreme Member
 
Joined: Jan 2003
Posts: 1,304
Likes: 0
From: West Des Moines, IA
Car: 2008.5 Mazdaspeed 3 GT
Engine: 2.3 DISI Turbo
Transmission: 6 speed MT
It's also hard to know how excited to be not knowing the correction factor used, or if 0 correction factor was used, what the weather was like. To many variables to get all keyed up over one dyno session. Now if you had another Lb9 car dynoed at the same time and you had more HP/TQ than he did, then you could be stoked...
Reply
Old Apr 11, 2005 | 08:49 PM
  #6  
TunedPort 335's Avatar
Supreme Member
20 Year Member
 
Joined: Jan 2003
Posts: 1,786
Likes: 1
From: Paxton, MA
Car: 1987 Camaro Z28
Engine: 335 TPI Stroker
Transmission: Tremec TKO 500
Axle/Gears: 10 bolt / 3.42
Those seem pretty good for a stock motor. I'd be happy with them
Reply
Old Apr 11, 2005 | 08:52 PM
  #7  
SLP IROC-Z's Avatar
Supreme Member
20 Year Member
Liked
iTrader: (1)
 
Joined: Oct 2002
Posts: 1,866
Likes: 5
From: Salem, NH
Car: 1999 Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23 10 Bolt
good baseline! let the modding begin!
Reply
Old Apr 11, 2005 | 10:16 PM
  #8  
D's89IROCZ's Avatar
Supreme Member
 
Joined: Jan 2003
Posts: 1,931
Likes: 1
From: Ontario, Canada
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
Originally posted by SLP IROC-Z
good baseline! let the modding begin!
I iwsh you would have dyno'd your 305 SLP ......
Reply
Old Apr 11, 2005 | 10:29 PM
  #9  
SLP IROC-Z's Avatar
Supreme Member
20 Year Member
Liked
iTrader: (1)
 
Joined: Oct 2002
Posts: 1,866
Likes: 5
From: Salem, NH
Car: 1999 Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23 10 Bolt
i will when its back together, its gonna have stock TPI, stock heads, stock short block and just a mild cam.
Reply
Old Apr 12, 2005 | 11:43 AM
  #10  
BigWhiteGTP's Avatar
Thread Starter
Supreme Member
20 Year Member
 
Joined: Jan 2003
Posts: 2,043
Likes: 3
From: San Diego
Car: 1994 Trans Am
Engine: LT1
Transmission: Auto
Axle/Gears: 3.23
My first mod besides getting the AC hooked up properly and SFC's, will be a rear end swap. I'm tired of losing races to cars with similar hp/weight ratios because of my crippling 2.73's.

Thanks guys!
Reply
Old Apr 15, 2005 | 06:49 PM
  #11  
Nitrous Al's Avatar
Member
 
Joined: Aug 2001
Posts: 265
Likes: 0
From: Massachusetts
Car: '90 Mercury Grand Marquis GS
Engine: 5.0L Ford V8
Transmission: AOD
Axle/Gears: 8.8" Ford, 3.08:1
5.0L AOD Mustangs dyno those numbers. I thought all TPI motors made 300 RWTQ?
Reply
Old Apr 16, 2005 | 08:24 AM
  #12  
GOY's Avatar
GOY
Senior Member
 
Joined: Oct 2004
Posts: 680
Likes: 0
From: Cleveland Ohio
Car: Formula, a big red brick.
Engine: A Ford 351 Windsor... ?
Transmission: Dodge 727
Originally posted by Nitrous Al
5.0L AOD Mustangs dyno those numbers. I thought all TPI motors made 300 RWTQ?
No, that would be all 87-92 5 liter mustangs....

LB9's made anywhere from 275 to 300 ft lbs, and their big brother's made up to 345 ft lbs (& a mustang crippling 245HP).
Reply
Old Apr 16, 2005 | 08:51 PM
  #13  
Nitrous Al's Avatar
Member
 
Joined: Aug 2001
Posts: 265
Likes: 0
From: Massachusetts
Car: '90 Mercury Grand Marquis GS
Engine: 5.0L Ford V8
Transmission: AOD
Axle/Gears: 8.8" Ford, 3.08:1
Originally posted by GOY
...their big brother's made up to 345 ft lbs (& a mustang crippling 245HP).
At the crank, not the wheels. I can still buy a magazine named "5.0 Mustang & Super Fords". Where can I pick up 5.0/5.7L TPI magazine? You can't, SLP had to start making parts for the 4.6L Mustang because GM killed the Camaro/Firebird.
Reply
Old Apr 17, 2005 | 02:03 PM
  #14  
Kat's Avatar
Kat
Supreme Member
iTrader: (4)
 
Joined: Sep 1999
Posts: 1,716
Likes: 0
From: Upland Pa
Car: Camaro Vert
Engine: 355 HSR
Transmission: A4
Axle/Gears: 3.73 S60
I only made 355 tq to the wheels

Kat
Reply
Old Apr 18, 2005 | 08:07 PM
  #15  
Nitrous Al's Avatar
Member
 
Joined: Aug 2001
Posts: 265
Likes: 0
From: Massachusetts
Car: '90 Mercury Grand Marquis GS
Engine: 5.0L Ford V8
Transmission: AOD
Axle/Gears: 8.8" Ford, 3.08:1
SLP saw no future in the Camaro/Firebird and now builds Mustang parts. Happy with the 355 RWTQ, Kat?
Reply
Old Apr 18, 2005 | 10:18 PM
  #16  
SLP IROC-Z's Avatar
Supreme Member
20 Year Member
Liked
iTrader: (1)
 
Joined: Oct 2002
Posts: 1,866
Likes: 5
From: Salem, NH
Car: 1999 Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23 10 Bolt
Originally posted by Nitrous Al
SLP saw no future in the Camaro/Firebird and now builds Mustang parts. Happy with the 355 RWTQ, Kat?
and Thirdgen.org sees no future with you, so i hope you get banned.
Reply
Old Apr 19, 2005 | 07:40 PM
  #17  
Kat's Avatar
Kat
Supreme Member
iTrader: (4)
 
Joined: Sep 1999
Posts: 1,716
Likes: 0
From: Upland Pa
Car: Camaro Vert
Engine: 355 HSR
Transmission: A4
Axle/Gears: 3.73 S60
Nope. Cause I need to do some more tuning to it still and want a new intake. The stock one is killing me.

Kat
Reply
Old Apr 19, 2005 | 11:36 PM
  #18  
schnekkie's Avatar
Junior Member
 
Joined: Apr 2005
Posts: 20
Likes: 0
Car: 85 Z28
Originally posted by Nitrous Al
SLP saw no future in the Camaro/Firebird and now builds Mustang parts. Happy with the 355 RWTQ, Kat?
so what? judging by your garage you are a real performance junkie! what does that ranger run anyway 18.5 maybe 17.0 on juice? GM has its head up the bunghole BUT the Z-28s and IROCS of the 5.0 mustang era will wipe the floor with any mustang of the same vintage. At the strip, on the street, in terms of sex appeal or in any other distinguishing factor the camaro is light years ahead of the mustang. sorry just simple facts. indeed ford itself was so confident in the mustang it developed the probe, which though still lacking was truthfully a better car than the 5.0 in many ways. just my two cents
Reply
Old Apr 23, 2005 | 04:56 PM
  #19  
rudyt5000's Avatar
Member
 
Joined: Oct 2004
Posts: 423
Likes: 1
From: Hobby/SE Houston tx
Car: 87-Z r.i.p & 93-Z sold 99s-10
Engine: 305 TPI , 350 LT1, 2.2 4cylinder
Transmission: 700 R4, 4l60, ?
i got a 305 tpi stock...i ran a 15.4 in the 1/4 ...but i had a few beers all day, full tank of gas, bout 100 lbs of audio in the back, need tune up , alignment. So im guessin i still have potential to run better....my buddy's stang ran 15.00 with alot of mods https://www.thirdgen.org/techbb2/sho...hreadid=291860 i still gotta use that free dyno coupon
Reply
Old Apr 23, 2005 | 05:11 PM
  #20  
HalfInchWrench's Avatar
Supreme Member
 
Joined: Feb 2005
Posts: 1,054
Likes: 1
From: Ajax, ON
Car: 85Z28 87GTA 91GTA 98SS
Engine: SBC, LS-x
Transmission: T-5, 700-R4, T-56
Originally posted by Nitrous Al
SLP saw no future in the Camaro/Firebird and now builds Mustang parts. Happy with the 355 RWTQ, Kat?
Why are you trolling here? Shouldn't you be on some fourm that deals with bumper hitches and mud? Make sure you check the tie rod ends on that death trap of yours. They like to seperate without warning. Just one more ford safety issue to add to the pile.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BlueIroc-Z
Camaros for Sale
7
Jun 9, 2019 03:22 AM
84z96L31vortec
Tech / General Engine
7
Aug 20, 2017 12:16 AM
Exxon Limited
Camaros Wanted
22
Dec 21, 2015 10:36 PM
84z96L31vortec
North East Region
1
Aug 10, 2015 08:27 PM
Leggman1
Transmissions and Drivetrain
3
Aug 6, 2015 04:15 AM




All times are GMT -5. The time now is 03:39 AM.