Redspad
Poster
Posts: 95
Loc: South West Florida
Reg: 08-15-09
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08-18-18 04:06 AM - Post#2743470
Question,,, I have a 1997 LS1 and trying to find out how much horse power this motor has is like pulling teeth. I went to the dealer and with the vin no. they found out nothing but the gear ratio is 3.15. All it says is it is a 5.7L, V-8 aluminum block and heads. Does any one know for sure. The dealer suggested I take it and do a dyno on it. 
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 wagonmaster
Member #241
Posts: 8982
Age: 71
Loc: Loganville, Ga.
Reg: 04-28-00
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08-18-18 06:13 AM - Post#2743479
In response to Redspad
The 1997 is a 345 HP engine
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 TAT_2
Site Ambassador - Member #26 - "20th Year" Silver Supporting Member
Posts: 36889
Age: 67
Loc: "UNDER THE BOARDWALK"
Reg: 10-29-00
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08-18-18 07:12 AM - Post#2743496
In response to wagonmaster
GUY I WORK WITH JUST GOT A 2003,FOUND A DYNO SHEET IN IT >>> 402 <<< HP TO THE WHEELS. IT HAS A DIFFERENT EX ON IT WITH A CROSS OVER PIPE. POSSIBLY A TUNE . ANY MOTOR WORK UNKNOWN BUT THE MOTOR LOOKS STOCK.NO VISIBLE MEANS IT WAS APART.
HEY JOE !!!
09 PONTIAC- VIBE
08 PONTIAC- G6
93 VETTE - 40TH ANIV- RUBY RED- LT1/6-SPD/RAG TOP
PREVIOUS VETTE'S 58,68,70,76,78,85,90
QUOTE FROM HELEN
"WHY YOU LOOKING AT THAT? YA KNOW YA WANT ANOTHER VETTE"
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Redspad
Poster
Posts: 95
Loc: South West Florida
Reg: 08-15-09
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08-19-18 04:06 AM - Post#2743579
In response to wagonmaster
Thank you sir, funny though I had a 69, 350/350 4 speed, 4.11, carbureted and this one just feels like more balls. I am sure it is the fuel injection and all the new tech.
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raycow
DECEASED
Posts: 27999
Loc: San Francisco, CA
Reg: 11-26-02
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08-19-18 08:23 AM - Post#2743594
In response to Redspad
The method of rating HP changed in 1972. You can see this for yourself by comparing 71 and 72 specs for the same engines. The 72 numbers are much lower. In the practical sense, this means that 72-up horses are "stronger" than 71-earlier.
Ray
| Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive. |
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wagonmaster
Member #241
Posts: 8982
Age: 71
Loc: Loganville, Ga.
Reg: 04-28-00
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08-20-18 04:50 AM - Post#2743704
In response to raycow
In 1972 they went to "net" horsepower ratings. The engines were rated with the accessories installed and with the additional drag they imposed on the engines. Hated the way it looked at the time, but understood why. Also, Corvette engine information plaques that appeared on the console did not come with horsepower listed as in previous years. Just omitted it because they seemed less appealing.
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Mercedes
Contributor
Posts: 209
Reg: 07-09-18
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09-16-18 12:34 PM - Post#2746335
In response to wagonmaster
Today's base model Kia will probably outrun a vintage Corvette.
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wagonmaster
Member #241
Posts: 8982
Age: 71
Loc: Loganville, Ga.
Reg: 04-28-00
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 09-18-18 03:22 PM - Post#2746580
In response to Mercedes
And your point?
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rcr3
Site Ambassador -"17th Year" Silver Supporting Member
Posts: 3373
Age: 69
Loc: MANHEIM PA. U.S.A.
Reg: 11-24-02
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09-19-18 01:16 AM - Post#2746623
In response to wagonmaster
Kia salesman?
'67 Camaro survivor
'06 Z71 Sierra Ex Cab
'37 Chevy cp.SOLD!!6/7/14
'00 S10 Ex Cab BUILT FOR EVERYDAY,NOT JUST THE HOLIDAYS
'73 Nova pro-street project
'17 Chevy Trax LT
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TAT_2
Site Ambassador - Member #26 - "20th Year" Silver Supporting Member
Posts: 36889
Age: 67
Loc: "UNDER THE BOARDWALK"
Reg: 10-29-00
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09-19-18 04:43 AM - Post#2746632
In response to TAT_2
2018 KIA STINGER GT >>> 365 HP OUT OF A 6 CYL
https://www.roadandtrack.com/new-cars/a13819415/ki ...
SO THAT WOULD MAKE IT A MODERN DAY SLEEPER.
09 PONTIAC- VIBE
08 PONTIAC- G6
93 VETTE - 40TH ANIV- RUBY RED- LT1/6-SPD/RAG TOP
PREVIOUS VETTE'S 58,68,70,76,78,85,90
QUOTE FROM HELEN
"WHY YOU LOOKING AT THAT? YA KNOW YA WANT ANOTHER VETTE"
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rcr3
Site Ambassador -"17th Year" Silver Supporting Member
Posts: 3373
Age: 69
Loc: MANHEIM PA. U.S.A.
Reg: 11-24-02
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09-20-18 01:43 AM - Post#2746731
In response to TAT_2
Not exactly a "base model".
'67 Camaro survivor
'06 Z71 Sierra Ex Cab
'37 Chevy cp.SOLD!!6/7/14
'00 S10 Ex Cab BUILT FOR EVERYDAY,NOT JUST THE HOLIDAYS
'73 Nova pro-street project
'17 Chevy Trax LT
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TAT_2
Site Ambassador - Member #26 - "20th Year" Silver Supporting Member
Posts: 36889
Age: 67
Loc: "UNDER THE BOARDWALK"
Reg: 10-29-00
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09-20-18 05:06 AM - Post#2746737
In response to rcr3
Not exactly a "base model".
YO !!!,,I WENT STRAIGHT 2 THE BIG GUN !!! 
09 PONTIAC- VIBE
08 PONTIAC- G6
93 VETTE - 40TH ANIV- RUBY RED- LT1/6-SPD/RAG TOP
PREVIOUS VETTE'S 58,68,70,76,78,85,90
QUOTE FROM HELEN
"WHY YOU LOOKING AT THAT? YA KNOW YA WANT ANOTHER VETTE"
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rcr3
Site Ambassador -"17th Year" Silver Supporting Member
Posts: 3373
Age: 69
Loc: MANHEIM PA. U.S.A.
Reg: 11-24-02
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09-20-18 05:45 AM - Post#2746746
In response to TAT_2
OY !!! 
'67 Camaro survivor
'06 Z71 Sierra Ex Cab
'37 Chevy cp.SOLD!!6/7/14
'00 S10 Ex Cab BUILT FOR EVERYDAY,NOT JUST THE HOLIDAYS
'73 Nova pro-street project
'17 Chevy Trax LT
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Redspad
Poster
Posts: 95
Loc: South West Florida
Reg: 08-15-09
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09-20-18 06:22 AM - Post#2746749
In response to rcr3
I do not want this to sound nasty but if that is all you can talk about is the junk KIA then don't put it on my form. I have no use for any of the far east cars.
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TAT_2
Site Ambassador - Member #26 - "20th Year" Silver Supporting Member
Posts: 36889
Age: 67
Loc: "UNDER THE BOARDWALK"
Reg: 10-29-00
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09-20-18 12:59 PM - Post#2746774
In response to Redspad
IS THE WEATHER OK ? ITS LIKE 78 HERE NOW & THE REMNANTS OF FLORENCE IS GONE !!!
09 PONTIAC- VIBE
08 PONTIAC- G6
93 VETTE - 40TH ANIV- RUBY RED- LT1/6-SPD/RAG TOP
PREVIOUS VETTE'S 58,68,70,76,78,85,90
QUOTE FROM HELEN
"WHY YOU LOOKING AT THAT? YA KNOW YA WANT ANOTHER VETTE"
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rcr3
Site Ambassador -"17th Year" Silver Supporting Member
Posts: 3373
Age: 69
Loc: MANHEIM PA. U.S.A.
Reg: 11-24-02
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09-20-18 03:07 PM - Post#2746784
In response to Redspad
Tell it to Mercedes,HE put it on "YOUR" forum.I dislike all ricers.
'67 Camaro survivor
'06 Z71 Sierra Ex Cab
'37 Chevy cp.SOLD!!6/7/14
'00 S10 Ex Cab BUILT FOR EVERYDAY,NOT JUST THE HOLIDAYS
'73 Nova pro-street project
'17 Chevy Trax LT
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TAT_2
Site Ambassador - Member #26 - "20th Year" Silver Supporting Member
Posts: 36889
Age: 67
Loc: "UNDER THE BOARDWALK"
Reg: 10-29-00
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09-20-18 03:53 PM - Post#2746791
In response to rcr3
 MY TOYOTA MATRIX,AKA PONTIAC VIBE IS SAD NOW !!!
ITS GONA GO EAT WORMS.
09 PONTIAC- VIBE
08 PONTIAC- G6
93 VETTE - 40TH ANIV- RUBY RED- LT1/6-SPD/RAG TOP
PREVIOUS VETTE'S 58,68,70,76,78,85,90
QUOTE FROM HELEN
"WHY YOU LOOKING AT THAT? YA KNOW YA WANT ANOTHER VETTE"
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1965C-10
Very Senior Member
Posts: 7568
Age: 43
Loc: San Tan Valley AZ "Phoeni...
Reg: 11-18-01
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12-31-19 07:08 PM - Post#2783358
In response to Redspad
Question,,, I have a 1997 LS1 and trying to find out how much horse power this motor has is like pulling teeth. I went to the dealer and with the vin no. they found out nothing but the gear ratio is 3.15. All it says is it is a 5.7L, V-8 aluminum block and heads. Does any one know for sure. The dealer suggested I take it and do a dyno on it.
Your LS1 has 345 horse power, and 350 ft pound torque, stock, just as my 1999 Corvette.
In 2001 power got bumped up from the upgrade to the LS6 intake (GM put these intake's on all LS1 and LS6 engines until their end of production for 2004 model years)
I believe 350 HP and 375 ft pound torque on manual transmission C5 Corvette, but less torque on the automatic, dialed it back in the tune to protect the transmission, as that was pushing it past it's limit.
My LS1 is factory stock and main reason I have not added modifications is it's really expensive!
However if I had the extra $$, my plan would be to put on A and A Corvette supercharger kit, cam and valve train to compliment the supercharger kit, long tube headers, and maybe a LS6 intake.
With just the supercharger kit alone, a C5 Corvette LS1 will put out over 500 rear wheel horsepower, probably 550 to 600 horsepower at the engine.
It will drive like stock until you romp it and get up to about 3000 rpm, then it will come alive make major power until you let off the gas.
It won't make the car eat any more gas just cruising around, fits under the factory hood.
I would add the cam and headers and LS6 intake, at the same time, because getting the car tuned ain't cheap, so do it all at once.
Last I looked their supercharger kits are at least 5000 bucks, but it's a great design, and I think it's worth it.
Would need your automatic built up to handle that power, on my car I would need a really strong clutch kit to hold the power.
Back to your car, having 3.15 rear gears is the performance version on the automatic, that was a more expensive option, and gives you better acceleration.
Most automatic came with 2.73 rear gears, which reduces acceleration.
The manual transmission C5 came with 3.42 rear gears.
I've read if you buy a 3.42 differential and add it to automatic C5, along with a 3000 stall torque converter, even on a stock LS1 it will be a BEAST!
It would outrun a 6 speed Corvette from a stop up to about 100 mph.
Edit, outrun a stock LS1 6 speed C5, but not a Z06 C5 Corvette with the 405 horsepower LS6 engine, or a C5 with engine modifications.
The catch is it would get less mpg.
3.15 is a good factory option.
Edited by 1965C-10 on 12-31-19 07:15 PM. Reason for edit: No reason given.
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1965C-10
Very Senior Member
Posts: 7568
Age: 43
Loc: San Tan Valley AZ "Phoeni...
Reg: 11-18-01
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12-31-19 07:43 PM - Post#2783360
In response to 1965C-10
Oops, I just noticed this thread was from 2018.
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