De-tuned?
Thread Starter
Staging Lane
Joined: Jun 2005
Posts: 56
Likes: 0
From: Knoxville Tennessee
????? Getting a lot of mixed opinions here. I know that there were some changes, according to all the literature I have read. They just haven't been specific as to what they were.
Originally Posted by iquois
Getting a lot of mixed opinions here. I know that there were some changes, according to all the literature I have read. They just haven't been specific as to what they were.
you get the picture. the only difference in ratings is on paper, vettes and fbody's of the same year and tranny will dyno the same. vettes usuallly a bit less due to IRS.
Originally Posted by jrp
same cam duration (lift if marginally different), same intake sans EGR, same injectors, ...
Why would GM purposely make something so small as a "marginal" amount of lift specific to the F-bodies or Vettes?
Trending Topics
Originally Posted by '02 WS6
Why is the lift marginally different? How different is it?
Why would GM purposely make something so small as a "marginal" amount of lift specific to the F-bodies or Vettes?
Why would GM purposely make something so small as a "marginal" amount of lift specific to the F-bodies or Vettes?
.500 vs .496 (98 vs 98 for example)
also lsa and overlap are a bit different because c5's dont have egr. the 98-00 and 01+ fbody cams are different, but would one swap one for the other; no, because the difference is marginal
.hell, even with aftermarket cams you'll be hard pressed to find much differencee betweeen two cams cut on the same lobe with only a degree or two of seperation.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Teching In
Joined: Jun 2005
Posts: 12
Likes: 0
From: Chelmsford, MA
Originally Posted by '02 WS6
Why is the lift marginally different? How different is it?
Why would GM purposely make something so small as a "marginal" amount of lift specific to the F-bodies or Vettes?
Why would GM purposely make something so small as a "marginal" amount of lift specific to the F-bodies or Vettes?
. Or it at least gives GM the ability to say their is a difference (how ever so slightly) between the two thus giving the ability to list different power numbers and allow for the $10-15k "market adjustment" for the Corvette. Thread Starter
Staging Lane
Joined: Jun 2005
Posts: 56
Likes: 0
From: Knoxville Tennessee
Marginal difference...........
Originally Posted by jrp
.500 vs .496 (98 vs 98 for example)
hell, even with aftermarket cams you'll be hard pressed to find much differencee betweeen two cams cut on the same lobe with only a degree or two of seperation.
hell, even with aftermarket cams you'll be hard pressed to find much differencee betweeen two cams cut on the same lobe with only a degree or two of seperation.
here try this, buy a camaro, yank the LS1 out, buy a Vette, put its LS1 in the camaro and what do you get, the same damn thing you started with
that marginal difference is not 25-45 HP, GM only states the Vette with higher numbers becuase if they told everyone that the F-body, which cost about half as much as the Vette, has the same HP as the Vette less people would buy it
think about it, would you buy a $20K with 300 HP or a $35K with 300 HP?
that marginal difference is not 25-45 HP, GM only states the Vette with higher numbers becuase if they told everyone that the F-body, which cost about half as much as the Vette, has the same HP as the Vette less people would buy it
think about it, would you buy a $20K with 300 HP or a $35K with 300 HP?
I don't think anyone is paying for the vette over the f-body simply because they think it has a little more hp. They are two different cars even if they have the same power. Stock vs. stock, the vette's crank hp may be slightly higher due to true duals if anything, but that's soaked up by the IRS. They seem to dyno very close for rwhp with all other factors matched (year, tranny etc.) The rating differences are because GM gave the flywheel numbers. I'd agree it's probably more for marketing than anything else.
Staging Lane
Joined: Mar 2005
Posts: 95
Likes: 0
From: South Bay, CA
Originally Posted by iquois
...but this marginal difference equals 25-45 hp? I'll take that!!
And if you already knew that, forgive me for being repetitive.
Originally Posted by iquois
When the LS1 was put into the Camaro in 98, it was a de-tuned vette LS1. What was done to de-tuned the4 motor and can it easily be reversed?
Here's a good article, where they dyno'd a stock '98 M6 T/A and a stock '98 M6 Vette
Originally Posted by Muerte_X
It was not detuned, same motor, slight differences, but overall they have the same hp.
Here's a good article, where they dyno'd a stock '98 M6 T/A and a stock '98 M6 Vette
Here's a good article, where they dyno'd a stock '98 M6 T/A and a stock '98 M6 Vette
i was looking for that muthafucka but i couldnt find it.
did the IRS eat up that much to actually make the TA put down more power to the rear than the vette??? Dont know much about the IRS except for the basics...I have always dealt with solid axles...I know the independent is set up for more grip and a better ride but does it really eat that much power??
Originally Posted by iquois
Wow.........didn't say I believed it!!you just like to egg people on and such? pretty obvious you missed the point.....
anyhow, the y-body and f-body have basically the same motor. this topic should be over with.