Thanks Speedworks...Found Some Missing HP!
Thread Starter
Le Mans Master
Joined: Mar 2002
Posts: 5,718
Likes: 2
From: Flower Mound TX
Cruise-In V Veteran
St. Jude Contributor
Thanks Speedworks...Found Some Missing HP!
Just a quick thanks to Brian and Dan at Speedworks in Lewisville, Texas. Brought my (almost) stock 2002 in for an LS1-Edit tune. Went from a baseline of 309.9 hp to a much smoother 320.3 hp (SAE). Sorry about the pic quality, but it still shows how they were able to smooth the knocking out and get a pretty flat line on the A/F ratio. They also put in a lower temp stat and changed the fan turn-on temps. Oh, and they got rid of that useless CAGS light on the dash!
Pro
Joined: Dec 2001
Posts: 530
Likes: 0
From: North Brunswick NJ
Re: Thanks Speedworks...Found Some Missing HP! (C5 StockSwap)
Just a quick thanks to Brian and Dan at Speedworks in Lewisville, Texas. Brought my (almost) stock 2002 in for an LS1-Edit tune. Went from a baseline of 309.9 hp to a much smoother 320.3 hp (SAE). Sorry about the pic quality, but it still shows how they were able to smooth the knocking out and get a pretty flat line on the A/F ratio. They also put in a lower temp stat and changed the fan turn-on temps. Oh, and they got rid of that useless CAGS light on the dash!
I'm always confussed with this subject. When I asked a certain tuner here in NJ about doing a dyno tune with my 2002 they said not much improvement can be made unless it had a bunch of mods. earlier models yes, new 2002 no. Told to save my money? Is the car that much smoother? I figure the lower stat made most of the hp improvement.
Thanks
I'm always confussed with this subject. When I asked a certain tuner here in NJ about doing a dyno tune with my 2002 they said not much improvement can be made unless it had a bunch of mods. earlier models yes, new 2002 no. Told to save my money? Is the car that much smoother? I figure the lower stat made most of the hp improvement.
Thanks
Thread Starter
Le Mans Master
Joined: Mar 2002
Posts: 5,718
Likes: 2
From: Flower Mound TX
Cruise-In V Veteran
St. Jude Contributor
Re: Thanks Speedworks...Found Some Missing HP! (Traffic Hater)
Traffic Hater (love that name!)
I believe the bulk of the improvement came decreasing the knock retard with timing adjustments and also getting that A/F ratio to "flatline" closer to an optimal mix. Keep in mind that the baseline dyno was made with the lower temp stat in place, so the incremental improvement is not due to that (in my opinion).
I agree it's expensive for just a couple of ponies, but I like knowing that I'm getting the most out of this engine. Also, subsequent LS1-edits done for future mods are priced around $100 or less per full session.
I'm always confussed with this subject. When I asked a certain tuner here in NJ about doing a dyno tune with my 2002 they said not much improvement can be made unless it had a bunch of mods. earlier models yes, new 2002 no. Told to save my money? Is the car that much smoother? I figure the lower stat made most of the hp improvement.
I agree it's expensive for just a couple of ponies, but I like knowing that I'm getting the most out of this engine. Also, subsequent LS1-edits done for future mods are priced around $100 or less per full session.
Thread Starter
Le Mans Master
Joined: Mar 2002
Posts: 5,718
Likes: 2
From: Flower Mound TX
Cruise-In V Veteran
St. Jude Contributor
Re: Thanks Speedworks...Found Some Missing HP! (SteveL2)
Nice improvement Steve. :cool: Sounds like you've gotten over those initial feelings about getting deeper into that car! :cheers:
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Pro
Joined: Dec 2001
Posts: 530
Likes: 0
From: North Brunswick NJ
Re: Thanks Speedworks...Found Some Missing HP! (C5 StockSwap)
That's kind of how I feel. My 2002 coupe seems fast enough. 110MPH in the 1/4 traps and have gone 168MPH on a baron road in PA. With the targa roof off no less! Do all you Guys/Gals who have 500 RWH cars really drive them like I can drive mine.
Drive mine like I stole it
It just makes me go :bb when I see a car on this forum with 450 RWH. Besides the track, where can you drive such a beast. I can barely keep all 310 RWH to the ground!
:D
Nice improvement Steve. :cool: Sounds like you've gotten over those initial feelings about getting deeper into that car! :cheers:
Yes, it's very scary at this point. H/C and SC are becoming more "interesting" to me. I'm hoping I can hold out for a little while and do some more appearance mods first. This car has more than enough power for me for the time being. ;)
:eek: :D .
Drive mine like I stole it
It just makes me go :bb when I see a car on this forum with 450 RWH. Besides the track, where can you drive such a beast. I can barely keep all 310 RWH to the ground!
:D Nice improvement Steve. :cool: Sounds like you've gotten over those initial feelings about getting deeper into that car! :cheers:
Yes, it's very scary at this point. H/C and SC are becoming more "interesting" to me. I'm hoping I can hold out for a little while and do some more appearance mods first. This car has more than enough power for me for the time being. ;)
Melting Slicks
Joined: Jan 2001
Posts: 2,361
Likes: 0
From: Sugar Land, TX USA
Re: Thanks Speedworks...Found Some Missing HP! (C5 StockSwap)
Just a quick thanks to Brian and Dan at Speedworks in Lewisville, Texas. Brought my (almost) stock 2002 in for an LS1-Edit tune. Went from a baseline of 309.9 hp to a much smoother 320.3 hp (SAE). Sorry about the pic quality, but it still shows how they were able to smooth the knocking out and get a pretty flat line on the A/F ratio. They also put in a lower temp stat and changed the fan turn-on temps. Oh, and they got rid of that useless CAGS light on the dash!
Melting Slicks
Joined: Feb 2002
Posts: 2,613
Likes: 0
From: Winston Salem NC
Re: Thanks Speedworks...Found Some Missing HP! (MySea5)
You were at 309.9 with the Blackwing and Corsas?
It's not surprising. The 02's and 03's have significant knock retard from midrange and up. With the Blackwing he may have been even leaner. Nice job.
It's not surprising. The 02's and 03's have significant knock retard from midrange and up. With the Blackwing he may have been even leaner. Nice job.
Thread Starter
Le Mans Master
Joined: Mar 2002
Posts: 5,718
Likes: 2
From: Flower Mound TX
Cruise-In V Veteran
St. Jude Contributor
Re: Thanks Speedworks...Found Some Missing HP! (MySea5)
You were at 309.9 with the Blackwing and Corsas?
Melting Slicks
Joined: Jan 2001
Posts: 2,361
Likes: 0
From: Sugar Land, TX USA
Re: Thanks Speedworks...Found Some Missing HP! (C5 StockSwap)
You were at 309.9 with the Blackwing and Corsas?
Yep, which roughly translates to 364hp at the flywheel. So, I got a little boost with the Blackwing, but until it was correctly tuned, I was obviously not getting all I could. 377hp at the fly sounds better to me!
Yep, which roughly translates to 364hp at the flywheel. So, I got a little boost with the Blackwing, but until it was correctly tuned, I was obviously not getting all I could. 377hp at the fly sounds better to me!
Interesting, I had not heard this before?
It's not surprising. The 02's and 03's have significant knock retard from midrange and up. With the Blackwing he may have been even leaner. Nice job.
