87 LB9 HP question
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Supreme Member
Joined: Apr 2012
Posts: 1,353
Likes: 1
From: Streetsboro Oh
Car: 1987 T/A WS6 T-Tops/92 RS
Engine: LB9/3.1
Transmission: 700R4/700R4
Axle/Gears: 2.73/3.23
87 LB9 HP question
I did a search and did not find anything. I have an 87 TA LB9/A4 combo and I keep getting confused as to the HP rateing. Some stuff says it's 190 and others 210, if 190 whats the differance? Anyone know for sure?
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Joined: May 2005
Posts: 2,220
Likes: 68
From: Atlanta
Car: '02 T/A WS6, '91 T/A, '91 Camaro RS
Engine: LS1, LB9, L03
Transmission: T56, 700R4, 700R4
Axle/Gears: 4.10 10 bolt, 2.73 10 bolts
Re: 87 LB9 HP question
IIRC, the higher horsepower rating only applied to 5 speed cars. I want to say that the 5 speed cars got the L98 camshaft, hence the power difference.
Joined: Aug 2006
Posts: 1,376
Likes: 7
From: Northern California - Bay Area
Car: 1988 IROC-Z
Engine: L98 - full intake & exhaust boltons
Transmission: Bowtie 700r4, 2400 rpm stall
Axle/Gears: Borg-Warner 9bolt, 3.45 gears, posi
Re: 87 LB9 HP question
In '87 the LB9/5-speed cars got the L98 style camshaft. The LB9/automatic cars got the lower performance camshaft.
Thread Starter
Supreme Member
Joined: Apr 2012
Posts: 1,353
Likes: 1
From: Streetsboro Oh
Car: 1987 T/A WS6 T-Tops/92 RS
Engine: LB9/3.1
Transmission: 700R4/700R4
Axle/Gears: 2.73/3.23
Joined: Aug 2006
Posts: 1,376
Likes: 7
From: Northern California - Bay Area
Car: 1988 IROC-Z
Engine: L98 - full intake & exhaust boltons
Transmission: Bowtie 700r4, 2400 rpm stall
Axle/Gears: Borg-Warner 9bolt, 3.45 gears, posi
Re: 87 LB9 HP question
It's not all the way bad. At least your engine is stock and you can look up what all the parts for the motor are. If you buy a car thats already been modded you have to hope and pray that the owner (or previous owners) kept records of what exactly was changed. A 100% stock 1987 LB9/auto combo car may not get you a 10 sec quarter mile pass but at least you can go in a reference book (or on this website) and get all the specs for everything
That being said you can always change out the cam for something that will give you more performance.
That being said you can always change out the cam for something that will give you more performance.
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Joined: Apr 2010
Posts: 176
Likes: 0
From: California
Car: 89 Camaro Iroc Z
Engine: 305
Transmission: MK6 World Class T5
Axle/Gears: 9 bolt had 3.45's, now 3.27 gears
Re: 87 LB9 HP question
TPI is fun!!! I miss having all of that low end grunt, and the awesome look of the runners with the cool plenum!
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Joined: May 2011
Posts: 702
Likes: 0
From: Los Angeles, California
Car: 1992 Chevrolet Camaro Z28
Engine: 5.7 TPI
Transmission: 700R4 Overdrive Automatic
Axle/Gears: 3.23:1 Positraction
Re: 87 LB9 HP question
Here are the power numbers for '87.
5.0 carb LG4 165hp & 250lbs torque
5.0 TPI LB9 190hp with A4, 215hp with M5, & 285 lbs torque
5.7 TPI L98 225hp & 330lbs torque
My '87 Iroc had the LG4 5.0 Carb with A4
base engine
5.0 carb LG4 165hp & 250lbs torque
5.0 TPI LB9 190hp with A4, 215hp with M5, & 285 lbs torque
5.7 TPI L98 225hp & 330lbs torque
My '87 Iroc had the LG4 5.0 Carb with A4
base engine Trending Topics
Thread Starter
Supreme Member
Joined: Apr 2012
Posts: 1,353
Likes: 1
From: Streetsboro Oh
Car: 1987 T/A WS6 T-Tops/92 RS
Engine: LB9/3.1
Transmission: 700R4/700R4
Axle/Gears: 2.73/3.23
Re: 87 LB9 HP question
So i'm not 30hp down I'm 35 down LOL! I do like the looks of the TPI's always have since I was a kid. I have no idea what i'm going to do with the car at this point. Part of me wants to sell it and part of me wants to keep it forever.
Senior Member
Joined: May 2011
Posts: 702
Likes: 0
From: Los Angeles, California
Car: 1992 Chevrolet Camaro Z28
Engine: 5.7 TPI
Transmission: 700R4 Overdrive Automatic
Axle/Gears: 3.23:1 Positraction
Re: 87 LB9 HP question
You know what I would do is sell the Mazda, & keep the t/a
& if so desired In the future take the 5.0 block out and put in a used 5.7
along with the necessary upgrades, bigger injectors, mild cam, computer tuning performance chip, trans shift kit, Flowmaster 3" exhaust.
& if so desired In the future take the 5.0 block out and put in a used 5.7
along with the necessary upgrades, bigger injectors, mild cam, computer tuning performance chip, trans shift kit, Flowmaster 3" exhaust. Thread Starter
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Joined: Apr 2012
Posts: 1,353
Likes: 1
From: Streetsboro Oh
Car: 1987 T/A WS6 T-Tops/92 RS
Engine: LB9/3.1
Transmission: 700R4/700R4
Axle/Gears: 2.73/3.23
Re: 87 LB9 HP question
You know what I would do is sell the Mazda, & keep the t/a
& if so desired In the future take the 5.0 block out and put in a used 5.7
along with the necessary upgrades, bigger injectors, mild cam, computer tuning performance chip, trans shift kit, Flowmaster 3" exhaust.
& if so desired In the future take the 5.0 block out and put in a used 5.7
along with the necessary upgrades, bigger injectors, mild cam, computer tuning performance chip, trans shift kit, Flowmaster 3" exhaust.My car is so stock so pulling the engine would just kill that fact so if I was to do an engine swap I might as well sell the car and get a car that has already been messed with and go from there.
Senior Member
Joined: May 2011
Posts: 702
Likes: 0
From: Los Angeles, California
Car: 1992 Chevrolet Camaro Z28
Engine: 5.7 TPI
Transmission: 700R4 Overdrive Automatic
Axle/Gears: 3.23:1 Positraction
Re: 87 LB9 HP question
If the truck is the dd then what's the KIA for ?
Thread Starter
Supreme Member
Joined: Apr 2012
Posts: 1,353
Likes: 1
From: Streetsboro Oh
Car: 1987 T/A WS6 T-Tops/92 RS
Engine: LB9/3.1
Transmission: 700R4/700R4
Axle/Gears: 2.73/3.23
Re: 87 LB9 HP question
Kia is the fun nice day summer DD and the truck is rainy day, winter, haul stuff DD-I put the Koup away in the winter. I'm single so I just switch off all the time between all the vehicles. As of late the Harley and TA have not had much use. With the truck repairs I just had to do and vacation in 3.5 weeks the TA is not going to get much love anytime soon besides a nice drive and wipe down now and then.
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