Sorry but you can't believe something into being true.

There are few fundmental differences between the 'vette power plant and the F-body power plant.

- 1. Induction - the 'vette has a more effective induction stock,
than the F-body.

- 2. Exhaust - the 'vette has a true dual exhaust system as well
as different manifolds.

- 3. Cam - this one I'm not entirely sure of, but it is my
understanding that the 'vette has a different cam.

- 4. Tune - again I can't say with certainity, but I suspect that
the 'vette has a more agressive tune that of the F-bodies.

- 5. EGR - it is also my understanding that the 'vettes did not
have EGR, even when they still had the LS1 intake. Which
re-enforces my assumption that the tune is not the same as
the F-body.

All of these differences are more than enough to provide a 40 hp delta between a C5 and a F4 ...

 

my car has no EGR.. 01-02 cars dont have EGR from factory..
but what I do believe is math..
A 3600lb car and driver can/cannot complete the 1/4 mile in "X" time with "X" horsepower with "X" gears..
using the above I have found that my car with about 320rwhp should not go faster than 13.19 in the 1/4mile..
that sounds about right to me. Ill keep trying to see if I can disprove my dyno and track times but so far, they back eachother up..

I need to get to the track again soon.. Raced a guy the other night that was sure I had mods based on his previous races... I popped the hood and showed him my paper filter, stock lid and silencer and explained that my car just runs strong...

 

They have the same Cam, I am 99% positive of that one. And no exhaust , induction and tune is going to give you 40 horespower without some forced induction and long tubes. The Vette has different manifolds and the true duels. Those probably add something like 8 horsepower over the F-body. And the induction the vette uses cannot add all that much power either. All of those things are just factory words that mean nothing.

Going back to the exhaust, I have always wondered about the Vette's exhaust system. It is so quite. I think it might be more restrictive even with its H-pipe system.

But I am a pretty strong believer that the Vette LS1 was under-rated also since they didn't want it to compete with 385 horsepower Z06 or the 405 horsepower Z06.

 

I dynoed the numbers in my sig with nothing more than a cutout in 90+ degree weather. You can't go by any specific numbers but rather by a range of numbers. No 2 LS1s are gonna put down exactly the same numbers or have exactly the same curve. Either way it's a great engine and you'll never regret changing over.

 

So, on one hand you're telling ME that I can't "believe" something to be true, but YOU "understand, suspect, and assume" certain things to be true, and that's okay?! Let me think about that for a minute.....
..... . (no flame, I'm just making a point)

The 'Vette and the F-body have shared the same camshaft over the years, although the 'Vette changed back and forth a couple times, whereas the F-body used a ~.500" lift cam for '98 - '00, then a ~.479" lift cam for '01 - '02. About the "tuning" of each car? I think we can let dyno numbers speak for that, because as far as I've heard, C5's don't dyno any higher than F-bodies on average (when stock), and the EGR issue is also a pretty mute point, because the F-body also discontinued it for the last 2 years, and that was also when ALL LS1's switched to the LS6 intake manifold.

As far as I'm concerned, you can swap LS1's between the 'Vette and the F-body, and you would never know the difference. I'm sure even a dyno would only show a small difference, and it could even be in favor of the F-body.

 

If the 'Vette LS1 is "soooooooo much better" than the F-Body LS1, why did my stock Z28 dyno in at 317 RWHP/334 RWTQ and run a 12.9? They are the same damn thing, get over it

I like those cold hard facts you gave with #3 and #4

Would you trust somebody to install a Nitrous kit in your car if they were "not entirley sure" or "can't say with certainity, but I think I might know how!" ? No, you wouldn't. The only thing different between the 'Vette LS1 and the F-Body LS1 is in 98 through 2000. In 2001 and 2002, they are the same. The only reason the 'Vette is "faster" is because of the weight difference. The Z06 is obviously a different story

 

Why would you take a relatively un-rare car like a V6 f-body and swap in an LS1+trans into it? When you could MUCH MORE EASILY sell your non-rare V6-car and buy a un-rare LS1 F-body???

I have seen this thread regarding V6 to V8 Mustang swaps. Equally as silly.

Just sell it!

 

insurence my friend, insurence

 

Yeah but what happens if you get in an accident. I think that person would be in a wee bit of trouble when an insurance adjuster found a V8 under the hood.

Woudn't they?

 

You... are KIDDING, right? You would go through tons of work swapping engine/trans/ECU/harness/accessory hoses/AND A LOT MORE, plus the purchase of $3500-4000+ in parts...

Just to save a few hundred bucks a year on a weak @ss insurance scam?!

That makes sense.

Once again, I've heard similar crazy talk for 15+ years, back when 4 cyl Mustangs and 5.0L swaps and V6 to V8 swaps in 3rd Gen f-bodies were "talked about a lot" but rarely undertaken. Most of the people that hatch these massive "money saving schemes" don't have the skills or the first clue as to how to pull this swap off, luckily.

Sure, if its going to be an all out race car that replaces every bit of the suspension and drivetrain and computer system/wiring, then it doesn't hurt to start with a cheaper, plebian V6 version of the chassis. But to go through THAT much work and EXPENSE just to change a stock V6 Camaro into a stock LS1 Camaro - not a rare car by any means - is completely silly and you'll cost yourself thousands in the process.

Trust me - I know a thing or two about hair-brained LS1 Swaps. Any drivetrain/ECU swap is a LOt of work, and in this case [for a v6 Camaro] is totally unneccessary. don't make needless work for yourself that 2 days of car selling/buying could fix!

I'd as soon see car wax comparisons in the tech forums than this silliness.

 

how much horsepower does the 2002 trans am ws6 have???

 

Who knows, from what everyone says on here it could be anywhere from 278 rwhp to 320 rwhp!!

There's such a big discrepancy between all the LS1 dyno numbers I've ever seen, I'm not sure which ones are right. All the people I know "in real life" with 01 or 02 LS1s, w/ lids and catbacks have never dynoed into the 330s...biggest numbers I've seen on a lid and catback car is 327 rwhp, I have another friend that dynoed 323 rwhp on his borla / lid / TB / misc bolt ons car (02 Z28). Both numbers are pretty dang good if you ask me.

And why can people never get the HP ratings right (I see this everytime someone asks how much hp these cars are rated for, noone can get it right)?

Factory rated them as follows:
98-00 LS1 Z28 and T/A = 305 hp
98-00 SS or Ram Air = 320 hp
01-02 Z28 T/A = 310 hp
01-02 SS or Ram Air = 325 hp.


Those are the rated numbers, but we all know they are underrated.

With that stuff being said, the LS1 is def an impressive danged powerplant.

And accepted friction losses for M6 cars are generally 12-13%, although most people generically use 15% as a rounded number. So a 310 rwhp car will have 310/ 0.87 = 356 flywheel hp. If you want to look more cool, use 0.85.

 

My 2001 Z28, A4 tranny .... laid down a whopping 284 RWHP, bone stock.

My 2001 WS6, M6 tranny .... laid down 317 RWHP with just an MTI air lid. It then laid down 330 RWHP when I opened the cutout.


All dyno runs were performed on Hypertech's DynoJet, with the coolant temp steady at 180* at the start of the pulls.