[NASTY99Z28]

Originally Posted by mr02Z/28

I'd be willing to run against anyone who buys a 6th Gen V-6 ...... I have a 4th Gen Z with LS1 4-speed Auto ....... I haven't ran my car recently at the track but when I did I was able to run consistent low 13s ( 13.12@106 was best time and did a 13.2x on numerous occasions) .......... I'm near ATCO but I live in Phila .... PM if anyone wants to test the ruggedness of the 6th Gen V-6 .......

Bone stock your auto car runs that? Not bad. Helps if you run at atco though. Is your car a hard top or ttop? If it's hard top with no options then you have one of the lightest combos the car had which isn't the norm. Hell even with ttops no options is still a hard car to find. I wish mine was a bare bones car.

[Jeffro19]

I had a 2002 Z28 with the 6 spd manual. I ran consistent 13.5 -13.6 probably could of did better. I'm willing to bet the 6gen will have its hands fulll against an LS1 Powered camaro. But curious to see but I would put my money on the LS1.

[KMPrenger]

Originally Posted by Cody6.2

It's pretty common knowledge that the BHP of the LS1 was 350 across the board. So using 335hp for comparison sake is already skewing the figures. On top of that GM can dream all they want but no 2016 is going to hit a curb weight of 3400lbs.

AL O is on record as saying the V6 and T4 will both be near 300 pounds lighter than the current V6. That puts it well into 3400 pound range. Not exactly 3400...no. But 3450....give or take? Certainly.

[KMPrenger]

Originally Posted by IOMike

No, it wasn't until the later years that they got the LS6 intake manifold and started putting out more power.

More like 330 then 345hp.

I highly doubt we will see 12.99 from a v6 6th gen hero run. 13.3 is my guess, for a hero run.

I'm with this....im thinking the magazine testing will put it in the 13.5 to 13.6 range.

[ULTRAZLS1]

98 had the largest cam.

99-00 next largest.

01-02 smallest cam. Differences were slight but they were different.

Also no EGR and slightly better exhaust manifold on the newer cars. ls6 style clutch in 01-02 as well.

All in all the 01-02 made a bit more power but the fast lists etc. didnt ever reflect much of a difference. Ive been a member of ls1tech since 2004.

All things equal the 01-02 car only had a slight advantage imo. 1 maybe 2 tenths tops.

[VADER SS L99]

Originally Posted by Cody6.2

It's pretty common knowledge that the BHP of the LS1 was 350 across the board. So using 335hp for comparison sake is already skewing the figures. On top of that GM can dream all they want but no 2016 is going to hit a curb weight of 3400lbs.

The 98-2000 LS1 F body with out any SLP options was more like 335HP, still a good 30HP underrated. The 97-2000 Vette with a 345 HP rating got a factory true dual exhaust with H pipe. If you looked under a 4th gen and saw the small Y pipe configuration and stock cross flow muffler you wouldn't say the F body made just as much as the Y body.

Originally Posted by SuperSound

I think a stock L99 might have it's hands full. Regardless we are looking at a strong V6 that will make 5.7 Chargers/Challengers drivers sweat.

I don't think the V6 will be faster than a L99 in high octane mode or a 8 speed Challenger. The earlier Challengers should be a little worried though.

Originally Posted by shaffe

Wasnt the LS1 in the 99 Z/28 "rated" at 315HP and the SS "rated" at 325HP?

Just like the Trans Am was 315 and the WS-6 was 325?

Originally Posted by SuperSound

'98-00 - 305HP TA/Z28 and 320HP WS6/SS
'01-02 - 310HP and 325HP

All those ratings were before SAE certifications and were complete bogus. No one really knows the exact rating since no one is going to put a bone stock F body LS1 on a engine dyno with full accessories and full exhaust. My guess is 98-2000 Z28/Formula 335HP/350TQ and Firehawks/SS's with upgraded exhaust being another 5-10HP above that. I never saw any evidence that suggested that the SS/WS6 with standard intake/exhaust made more actual power vs the Z28/Formula. 01-02 cars probably made another 5HP/TQ peak above their 98-00 counterparts with more than that in the low-mid rpm range. 2002 Firehawk/SS's with optional intake/exhaust probably made the most power. I would guess in 350HP/365TQ or more range.

I think the Z28/Formula/Trans AM rating was done so it wouldn't be as close to the SS/WS6/Firehawk rating and GM needed those extra optioned F body ratings to be low enough not to step on Vette toes and justify the flagship Vette price tags.

Originally Posted by ULTRAZLS1

98 had the largest cam.

99-00 next largest.

01-02 smallest cam. Differences were slight but they were different.

Also no EGR and slightly better exhaust manifold on the newer cars. ls6 style clutch in 01-02 as well.

All in all the 01-02 made a bit more power but the fast lists etc. didnt ever reflect much of a difference. Ive been a member of ls1tech since 2004.

All things equal the 01-02 car only had a slight advantage imo. 1 maybe 2 tenths tops.

F body LS1 cams from 98-00 were the same. The Vette LS1 in 2000 got the biggest LS1 cam but it was never put in a F body to my knowledge. 01+ LS1 cams were the same for all engines regardless if it was a Y body or F body. 01-04 LS1 cars also got a LS6 Intake manifold in addition to better exhaust manifolds. The intake manifold is the biggest reason those engines made more power then the earlier LS1's despite the smaller camshaft. I used to have a bolt on 01 Z28 A4 that ran a best of 12.2 so this stuff has been permently seared into my brain lol.

The 2015 2LS Camaro is listed at 3702lbs from GM. If the 2016 base V6 Camaro can lose 300lbs from that car it will be 3402lbs. With 335HP, the 8 speed and that weight I see no reason why low 13's wouldn't be possible with negative DA, the right driver and a well prepped track. I bet the 4 best mods for that car would be a tune, gears, converter and tires.

[Cody6.2]

Why are some of you arguing points about a car that doesn't exist yet but still don't know all LS1's were around 350bhp?

And I don't care what Al said as half of the comparisons GM uses for this weight loss show the previous SS at 3900lbs plus.

[SuperSound]

Originally Posted by Cody6.2

Why are some of you arguing points about a car that doesn't exist yet but still don't know all LS1's were around 350bhp?

And I don't care what Al said as half of the comparisons GM uses for this weight loss show the previous SS at 3900lbs plus.

Like Vader stated, with no SAE rating there is no way to say what power the F-body LS1s made with any certainty. Most agree it was underrated compared the Vette LS1s and there was very little if any difference between the two.

This whole forum is dedicated to a car that does exist but is not on sale yet. Kind of like a real HP rating on the LS1, it exists but not officially.

This is about a V6 6th gen, not an SS. And what GM comparisons have mentioned the previous SS at 3900+? Every statement regarding weight made by Al or GM press releases has not mentioned a specific weight for the previous gen, only XXXlbs over the comparable previous gen.

[NASTY99Z28]

Originally Posted by Cody6.2

Why are some of you arguing points about a car that doesn't exist yet but still don't know all LS1's were around 350bhp?

And I don't care what Al said as half of the comparisons GM uses for this weight loss show the previous SS at 3900lbs plus.

Because we can. If you don't like it just move along. Plus many fbodys put down between 280-310whp so to say it had 350hp and thats the law isn't correct.

[KMPrenger]

Originally Posted by Cody6.2

Why are some of you arguing points about a car that doesn't exist yet but still don't know all LS1's were around 350bhp?

And I don't care what Al said as half of the comparisons GM uses for this weight loss show the previous SS at 3900lbs plus.

....but the SS is 3900 plus. The 2015s are a bit heavier than the 2010s were. Look it up on the Chevrolet website under Camaro specs. So what is your issue?

[ULTRAZLS1]

Originally Posted by VADER SS L99

The 98-2000 LS1 F body with out any SLP options was more like 335HP, still a good 30HP underrated. The 97-2000 Vette with a 345 HP rating got a factory true dual exhaust with H pipe. If you looked under a 4th gen and saw the small Y pipe configuration and stock cross flow muffler you wouldn't say the F body made just as much as the Y body.


I don't think the V6 will be faster than a L99 in high octane mode or a 8 speed Challenger. The earlier Challengers should be a little worried though.


All those ratings were before SAE certifications and were complete bogus. No one really knows the exact rating since no one is going to put a bone stock F body LS1 on a engine dyno with full accessories and full exhaust. My guess is 98-2000 Z28/Formula 335HP/350TQ and Firehawks/SS's with upgraded exhaust being another 5-10HP above that. I never saw any evidence that suggested that the SS/WS6 with standard intake/exhaust made more actual power vs the Z28/Formula. 01-02 cars probably made another 5HP/TQ peak above their 98-00 counterparts with more than that in the low-mid rpm range. 2002 Firehawk/SS's with optional intake/exhaust probably made the most power. I would guess in 350HP/365TQ or more range.

I think the Z28/Formula/Trans AM rating was done so it wouldn't be as close to the SS/WS6/Firehawk rating and GM needed those extra optioned F body ratings to be low enough not to step on Vette toes and justify the flagship Vette price tags.


F body LS1 cams from 98-00 were the same. The Vette LS1 in 2000 got the biggest LS1 cam but it was never put in a F body to my knowledge. 01+ LS1 cams were the same for all engines regardless if it was a Y body or F body. 01-04 LS1 cars also got a LS6 Intake manifold in addition to better exhaust manifolds. The intake manifold is the biggest reason those engines made more power then the earlier LS1's despite the smaller camshaft. I used to have a bolt on 01 Z28 A4 that ran a best of 12.2 so this stuff has been permently seared into my brain lol.

The 2015 2LS Camaro is listed at 3702lbs from GM. If the 2016 base V6 Camaro can lose 300lbs from that car it will be 3402lbs. With 335HP, the 8 speed and that weight I see no reason why low 13's wouldn't be possible with negative DA, the right driver and a well prepped track. I bet the 4 best mods for that car would be a tune, gears, converter and tires.

According to my recent searches 98 had a different cam than 99-00. Maybe they were talking corvette idk. Maybe the posters were incorrect. Most sources say 98-00 were the same... It's been a while lol

But I'm pretty much like you. Had a built 4th gen in the past. Know a lot about them. But it's getting further and further in the past...

[mr02Z/28]

It's well understood that the 1998-2002 LS1 motors were "underrated", so I believe 350HP @ the crank is possible .... My 2002 Camaro was crazy ordered from the factory even without a stock radio and it does have T-Tops .... go figure that one, although it has the crappy 2.73 rear gears but it moves and moves it does, lol ........



I even have the manual crank windows, funny stuff ....

[VADER SS L99]

Originally Posted by ULTRAZLS1

According to my recent searches 98 had a different cam than 99-00. Maybe they were talking corvette idk. Maybe the posters were incorrect. Most sources say 98-00 were the same... It's been a while lol

But I'm pretty much like you. Had a built 4th gen in the past. Know a lot about them. But it's getting further and further in the past...

If you go to LS1tech in the skicky cam guide you will find the as measured cam specs for a 98 LS1 F body and a 2002 LS1 F body. I even remember when it happened because the cams were specd on a high dollar Comp machine. After this thread I was curious about the cam differences between F body and Y body. I always knew that the 2000 Corvette had the biggest cam out of all LS1's but what surprised me more is that all the cams that were in Y bodies were slightly different than F body cams before 2001. There very very slight differences in duration, LSA and/or lift but they all had different part #'s. You can see the different part #'s in this post. Notice 1998 F body was a different part # than 1999 but the same specs.
http://www.corvetteforum.com/forums/...cam-specs.html

Originally Posted by mr02Z/28

It's well understood that the 1998-2002 LS1 motors were "underrated", so I believe 350HP @ the crank is possible .... My 2002 Camaro was crazy ordered from the factory even without a stock radio and it does have T-Tops .... go figure that one, although it has the crappy 2.73 rear gears but it moves and moves it does, lol ........



I even have the manual crank windows, funny stuff ....

If the LS1 in a 4th gen F body made 350HP(possible I agree) then I think the LS1 in a same year C5 Y body made 360HP. If you had a 4th gen then you have to agree that the factory exhaust was a big restriction and not as good as the Y bodies true dual H pipe setup.

The biggest thing people forget about when they dynoed Y bodies vs F bodies on the same dyno and same day is a C5 Corvette has a beefier IRS, heavier 18" wheels and heavier/larger run flat tires. Most all 4th gen F bodies have light 16" wheels/tires and a tiny 10 bolt rear end that didn't soak up much power. In other words a C5 has more drivetrain loss than a 4th gen.

Like I said earlier, there is no way to know for certain unless someone pulls the engines from both models with all accessories and full exhaust and puts them on a engine dyno. Even then not all LS1's were built equal from the factory. Some were stronger than others of the same year and model. Its not like today were there is very little variance of the same engine. Its full speculation on how much power LS1 engines made but my educated guess is that the Y body made more then the F body because of the exhaust.

This thread was made in speculation and hope that what Al O said comes true and the base to base V6 weight loss is 300lbs. If that doesn't happen then all of this is a mute point and wasted time.

[Cody6.2]

Obviously production variations will make every engine different. And for each positive change of the LS1 there was a negative. Be it cams, exhaust manifolds, intake manifolds and AIR & EGR. In any case the engine itself had an average rating of 350bhp.

With that being said the 2016 V6 isn't going to weigh 3400lbs let alone match a 98-02 Z/28 or SS.