Im doubting the LS3 dynos....

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Sep 3, 2007 | 07:43 PM

Killemall

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Im doubting the LS3 dynos....

I mean no disresoect to anyone on this site...

But many people are quoting that the new LS3 vettes are dynoing 400 rwhp..

My problem is this..

The LS2 was rated at 400 HP and dynoed 335-345 rwhp...

The LS3 is rated at 435 HP and it's dynoing 400 rwhp???

370-380 rwhp would seem much more realistic...

As well the LS2's were trapping 112-115 mph..The LS3's are trapping 114-116 mph...

400 rwhp and 3250 pounds should be good all day for 12.1-12.3's at 117-120 mph

After all the 1996-2002 vipers weigh 3400 pounds and dyno 410 rwhp and run 12.1-12.3 at 117-120 mph as a comparison

So were are the actually owned LS3 SAE dynos that are 400 rwhp..

Or are these only vendor cars on special dynos that are STD numbers

Again no disrespect...

But after owning a bone stock 1999 3380 pound 410 rwhp viper that trapped 117-120 mph in every mag...

Well a 3250 pound 400 rwhp C6 should be just as faster or even a lil faster based on the power to weight..

SO WHAT GIVES..ARE THESE 400 RWHP STOCK LS3'S NUMBERS THE REAL DEAL AND SAE..

Or is it BS

Sep 3, 2007 | 07:47 PM

santiago

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dont sweat it man im sure youll be able to keep up with them if not beat them.

Sep 3, 2007 | 08:17 PM

Killemall

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Not sweating it what so ever man...

My srt10 has trapped 122 mph by me personally and up to 123 mph in the mags..

I only brought up the 1996-2002 Vipersas a close comparison...

They were 3380-3440 pounds and dynoed 400-410 rwhp on average

They averaged 12.2 at 118 mph with 450 bumper HP

The LS3 vettes..People are saying they dyno 390-400 rwhp..They weigh 3250 pounds..

Shouldnt they be running 12.2 at 118 on average and up to 12.0 at 120 mph at best with VERY possible 11's????

Instead there struggling to run 12.4 at 116 in mags and with actual owners...

If 400 rwhp is only 50 rwhp under the C6Z05...s well as 3250 pounds is only 100 more pounds than the C6Z06...

And the C6Z06 can trapp 125 ( most recent test)..Well the 400 rwhp LS3's should be trapping 119 ( 50 pounds less rwhp and 100 pounds more weight) 125 turns ito 119 trapps....

Eighter ths car has the worst TM of ant sports car available or the 400 rwhp number is BS and it's more like 380 rwhp SAE with acual owners ondyno jets...

3250 pounds and 380 rwhp will net you a 12.4 at 116...And I beleave a 12.3 at 117 will be obtained...

But thats stilla ways off from a 12.1 at 119 that 400 rwhp should be producing

Again this is not a pissing contest with my Vipers...

I WAT THE C6 TO DYNO 400 RWHP AND TRAPP 119 MPH SO THERES MORE COMPETITION OUT THERE AND IT DESTROYS THE GT500..

But so far he 12.4 at 116 (2002 Z06 numbers) is just a dissapointment

Sep 3, 2007 | 08:47 PM

PewterScreaminMach

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Quote:

Originally Posted by Killemall

My problem is this..

The LS2 was rated at 400 HP and dynoed 335-345 rwhp...

The LS3 is rated at 435 HP and it's dynoing 400 rwhp???

370-380 rwhp would seem much more realistic...

Are you forgetting that most LS1 Fbodies were rated between 305 and 325 or so and most dyno bone stock between 300 and 315, give or take a few hp?

Going by your theory of are trying to compare an LSX rated vs dyno with another LSX rated vs dyno, it is very possible.

Just a thought.

I do see your point with the trap speeds, though.

Sep 3, 2007 | 10:25 PM

JakeFusion

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Could the lower trap speeds be a byproduct of the summer heat?

I bet we'll see more 118-120 type runs as fall rolls in.

Sep 3, 2007 | 10:26 PM

Patrick G

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The dynos are closer to 380-390 rwhp stock and yes, they have torque management from hell. You would not believe how much timing gets pulled for intake air temperature, engine coolant temperature and aggressive driving. On a hot summer day, they are often down 40-50 rwhp from the pcm pulling so much timing. With a tune, you can avoid the pcm pulling all the timing then gain some power with a leaner power enrichment setting and timing increased in key areas. If the Ls3 is untuned, they're easy to beat in the summer time, but if the guy's had his car tuned properly, watch out!

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Sep 4, 2007 | 12:30 AM

Killemall

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Good info and thanks.....

380-390 rwhp SAE...

Hell yea...Thats a HUGE jump up from the 335-345 rwhp LS2's...

please link me to an actually privatly owned LS3 vette that dynoed on a dyno jet SAE...

Cas I dont trust in house vendor dynos...

And it could possibly be the air...In really bad conditions there were a few 1996-2002 Viper reviews that only trapped 117...

Hopefully your right and a mag will get a 118 mph trap in a month or two

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Sep 4, 2007 | 10:52 AM

White_Hawk

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Quote:

Originally Posted by Killemall

Good info and thanks.....

please link me to an actually privatly owned LS3 vette that dynoed on a dyno jet SAE...

Ditto, I would like to see some of the 400 rwhp posts you are talking about too.

-Geoff

Sep 4, 2007 | 10:53 AM

#10

black_z

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Quote:

Originally Posted by Killemall

The viper engine is going to be making a lot more average power, given the 100+ cube advantage. That will definitely result in a higher trap, also I have seen an auto LS3 vette trap 116, an M6 car would trap higher.

Sep 4, 2007 | 11:15 AM

#11

allngn_c5

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LS3 a6's high 360's low 370's
LS3 m6's high 370's low 380's Both untuned

LG Motorsports got one over 400 rwhp with pro longtube headers, K&N, and a tune. Lots of issues with the tune on these new motors. Once you tune out all the restrictions on this motor and timing is no longer being pulled, she really shines.

Check out the LG website and you'll see graphs posted for bone stock ls3's auto and manual, k&n only, and also a header, k&n, with a tune.

Sep 4, 2007 | 11:36 AM

#12

bad2000z

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Killemall, don't you have a Viper site you can nut swing on? You're right...your $85,000 Viper is faster than a $50,000 LS3 Vette, congratulations. You're beloved Viper is far superior to anything GM has ever, or will ever make. The '08 Viper is faster than a C6 Z06....have I covered all the bases??

If there's anything I've missed, I'm sure you will be swift to point it out. Thanks for pissing in our low budget, welfare, mullet wearing cheerios.

Sep 4, 2007 | 12:11 PM

#13

Killemall

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Sorry **** sucker...I owned a supercharged camaro and a 2004 C5 long before I ever touched a viper....

And I want to see the base vettes get back some steam...But I was doubting the 400 rwhp..

And so far I was correct...But 370-380 rwhp is still VERY impressive..

And the 370 rwhp LS3 C6 would have ran dead nutz with my 378 rwhp mild H/C 2004 C5....

Thats very impressive

These wars are just sick man

Sep 4, 2007 | 12:38 PM

#14

STRIPSTAR

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vipers may trap lower as they are alot harder to drag race. I dont know the reason but evryone i see cant 60'. Maybe its the suspension or gearing? They could have more HP but similiar times.

Sep 4, 2007 | 12:45 PM

#15

allngn_c5

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Quote:

Originally Posted by STRIPSTAR

vipers may trap lower as they are alot harder to drag race. I dont know the reason but evryone i see cant 60'. Maybe its the suspension or gearing? They could have more HP but similiar times.

I think a lot has to do with traction, or better put lack of. I don't see Vipers hooking very well even with the beer keg sized tires. Don't the Vipers run across the traps at the top of 3rd ??

Sep 4, 2007 | 12:50 PM

#16

Checkmate

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Quote:

Originally Posted by Killemall

Sorry **** sucker...I owned a supercharged camaro and a 2004 C5 long before I ever touched a viper....

What are you 12 with the name calling.

Sep 4, 2007 | 12:59 PM

#17

allngn_c5

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Quote:

Originally Posted by Checkmate

What are you 12 with the name calling.

Easy Killemall !! You know that type of **** will get you a vacation. No need to be in the realm of 25 psi. You post a lot of good info. Albeit mostly straight from the recent M/T or C/D but still useful. Continue being an asset not an *******. Ok buddy, pep talks over.

Sep 4, 2007 | 01:04 PM

#18

bad2000z

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Quote:

Originally Posted by Killemall

You better keep a close eye on that rich wife of your's. There are a lot of Chevy driving **** suckers out there who would love to hook up with a bitch like that!

BTW, do you have any friends?....I mean...other than your rich wife? I'm willing to bet if you hadn't married a wealthy woman, you would still be driving a lowly Chevy just like the rest of us....bitch.

Last edited by bad2000z; Sep 4, 2007 at 03:04 PM.

Sep 4, 2007 | 01:07 PM

#19

HolyShiznit

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www.viperalley.com

^^ Go **** with all of them.

Sep 4, 2007 | 02:17 PM

#20

RC45

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Quote:

Originally Posted by Killemall

Who posted anything about stock LS3's dynoing over 400 to the wheel?

There were posts about tuned/header/intake cars making 400, but nothing abotu stock cars from what I recall.

So, I hear that the new Viper will only be making 600bhp... wow and its still gonna weigh like 2 tonnes - I can't wait to meet one on the streets