TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

Dynoed my car....

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Old 07-12-2003, 05:59 PM
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Dynoed my car....

152RWHP @4000 239# @2900 -- hey, its a L03

only "mods" are a open element and a tune up.


btw, my MPG prob showed up with the AF ratio.. it was 12:1 or worse the entire curve


i'll post pics of the chart once i take some.
Old 07-12-2003, 06:10 PM
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way better than mine...
https://www.thirdgen.org/techbb2/sho...66#post1395466
Old 07-12-2003, 06:15 PM
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thats about right for the lo3. good job in keeping her in good running shape, keep it up.
Old 07-12-2003, 06:41 PM
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by icebird_1981
thats about right for the lo3. good job in keeping her in good running shape, keep it up.
thanks. i owe most of that to the cars history.

the orignal owner ordered the car, took it to the dealer regularly, and kept it up very well. the 2nd owner had it for 2 months, then i got it.

it wasnt horrably abused.... until i got it.. lol..

ive never owned a car i floor so often..


pic of the dyno chart coming soon as i get one that stays in focus.
Old 07-12-2003, 06:52 PM
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
big pics can be seen here:

http://josh.swoca.net/board/mrdude/Dyno/

first run: as it drove onto the dyno. athough it hit the speed limiter on the end.





so i reached under and disconnected the VSS plug.
i think thats the reason for the "chop" seen in the 2nd run:



in anycase, im happy. my engine is strong (strong as it should be for what it is) and my tranny seems to be working great.
Old 07-12-2003, 06:57 PM
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
btw, in the pics you can see the lower AF graph.

its running pretty rich all the way across....
Old 07-12-2003, 08:17 PM
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looks like the engine goes way rich at about 4400. Good numbers though. They can be improved a lot too with a little work.
Old 07-12-2003, 09:34 PM
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btw, is that auto or 5 speed?
Old 07-12-2003, 09:54 PM
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
auto.
Old 07-12-2003, 09:55 PM
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Nice, good numbers for a stock auto L03. That's about 190 flywheel hp.
Old 07-12-2003, 10:12 PM
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
or to look at it another way...

its 170hp with only 11% drivetrain loss.

all depends on how you look at it.

if you hold the power constant, the drivetrain loss changes
if you hold the drivetrain loss constant, the power goes up.

in anycase, its still slow. but a good baseline to start from.
Old 07-12-2003, 10:14 PM
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True, but you lose a percentage of the whole, not a set number. for an auto the average is about 20% I believe and that would put you right at 190 flywheel hp. Good baseline, I agree.
Old 07-26-2006, 03:20 PM
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
my car now makes 241% more horsepower then it did back when i posted this...
im expecting even more once i put headers on it....
Old 07-26-2006, 04:36 PM
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Car: 1998 Volvo S70
Engine: B5254S Engine
Transmission: Automatic
Axle/Gears: It's a volvo?
hah, i was just gonna say those numbers are pretty pathetic for an LS1 engine.


But then I looked at the date and then everything began to clear up.
Old 07-26-2006, 10:14 PM
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Car: 89 iroc-z
Engine: 305tpi
Transmission: wc-t5
Axle/Gears: 10 bolt 3.08 posi (4 now)
mine dyno'd at 153hp and 237 trq before a full much needed tuneup and some other little things but, it also ran real rich imo on our schools mustang chassis dyno, afr was from 10.9 to 11.4 definetly to rich for my tastes.....
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