Most weigh 3450-3550 no driver with a full tank of fuel.

 

Well don't people generally refer to non-occupant weights??

 

Ever heard of "raceweight"?

You car drives itself? LOL.

 

You can't compare car weights when one driver weighs 150 and the weighs 250...... kinda skews things

 

Doesn't matter, most guys are around 160-200lbs.




The car still has to pull that weight. Just like running on an empty or full tank of fuel, 100lb difference.

 

Sure 90lb matters, 50lb matters, 25lb matters. Depending on where it's at all can matter alot.

One guy weights 170, his car has no weight reduction and 1/4 tank gas.....let's say his car weighs 3600 with him. The other guy is 225(very common), no ac , no front bar, !spare and drag pak on a 3/4 tank of gas.

Both started at 3430 w/o driver

-30 ac
-45 !spare
-15 no front bar
-12 gal gas = 75lb~ (about 50lb~ difference in fuel load)
-40 drag pak
Big boys car is 3575. A seemingly small difference for 2 very different cars. And 2 very real set-ups.

Those "cars" could realistically weigh the same if one had a little less gas on one a little more.

 

CA Smog *****...If your total pollution is more than 5% over your base line spec its a fail. I could have done a max effort LS6 but its just not worth the headaches! More power = more fuel = more waste gases..It runs strong with no issue from 39° Winters here to 121° Summer days in Vegas. And yes we have rolling smog checks that can spot you in traffic, CHP will pull you and you get tested right then..lol

 

I don't really see a full weight Fbody trapping 120mph with a LS6. Even with basic bolt ons they only make upper 300's to the wheels, that aint enough to run 120 at 3600-3700lbs. A 3100 lb C5 Z06 only runs around 118-120 with 390-400 to the wheels with basic bolt ons.

Mine pushes close to 400 to the wheels and it runs 115mph at sea level. But its heavy, 3530 no driver and I am a 300lb lead weight.

 

AAAAHHH ok.......but there are things you can do that has nothing to do with emissions.
I've seen stock c5 Z's run 116-118 several times. The record for a bolt-on c5 Z is now a 10.1. My bolt-on ls6 has been over 130(see sig) and with the fab 9 I recently put in the car I expect it to go into the 10's. Previous times were on the 10 bolt. Granted mine is a little extreme but the basic "bolt-on" ls6 mainly because it is "full bolt-ons". But it is easily duplicated. Mine also made 417whp on a dyno dynamics which reads low (3.5 %)when compared to dynojets and would make about 431whp on a dynojet. I have been running a bolt-on ls6 with various bolt-ons since 2002. So I know what they do if running right with lots of varying mods.

MIne went 11.8 @ 119.8 with very very basic bolt-ons .....not even a dr and on 18's. Some weight loss do to in the course of modding the these cars loss weight. But no real weight reduction at that point.

The basic things I see people do wrong is to much gear, not enough rpm's, thinking a fast intake does nothing over a ls6 intake.........and here's the real kicker......to heavy of a clutch like that ls7 pos.

For another comparison a bud and I put a ls1 Z28 in the 11's at 116 a while back. That didn't have headers and only about 200lb in weight reduction which is nothing on these cars. Very basic car even on 100+k stock suspension. A ls6 in that car should make another 60hp and push it to 122 pretty easily.

 

Your car is the exception, not the rule here.

Fact is most all LS6 engines dont make 400 to the wheels even with bolt on's. In a heavy car, that's hard to get in the 11's over 115 or so mph.

 

I wouldn't rely on that kind of "ricer" math much. The last dynojet I was around was reading a solid 35-40rwhp low on average for every car we strapped to it.

And I agree, I would say those examples are the exception more than the rule. There are some threads on this site where people have spent a lot of time and detail on their combos and not really replicated the results.

 

"HioSSilver AAAAHHH ok.......but there are things you can do that has nothing to do with emissions."

Why do you feel you need to diagnose what MY car should be running? I live in CA so I'm very familiar about what I can and can't get away with here in CA? You know none of the details of my runs, I know your not familiar with the new Star OBD2 scanning test that actually compares your current cars tune to the stock factory tune and can FAIL you based on too many differences between the two, If I'm ever in VA you'll be the first I ask for advice before I leave CA ok? Not to be a smart ***..
And no worries emissions testing is a great revenue $tream for the states so you'll be a learning soon enough...

Everyone's an expert and every car is in the 9's when ya bench racing?..smh

 

The GM LS6 block might be dis continued but we have our TMS LS6 plus that has corrected any short falls of the LS6 with upgraded forged pistons, chromoly pushrods, Melling select high pressure oil pump and much more for only $4499 including a 1 year unlimited mileage warranty.
TMS LS6 plus long block forged pistons
TMS forged Probe piston short block flat top with -3cc valve reliefs
Blueprinted GM L33 block for updated oiling and evac seasoned core
GM balanced, chamfered, and polished core crank with TMS remanufacture GM rods
GM 799 OR 243 casting heads non ported
TMS performer cheater billet custom ground camshaft 117lsa 216 224@.050 .551" .551"
PAC 1218 springs
Chromoly pushrods
TMS head studs
MLS head gaskets
Melling select high pressure oil pump
GM rocker assembly
TMS aftermarket ls7 lifters
ls2 timing chain
ls2 cam sprocket
GM lifter trey set

Let us know if we can help you with something like this for your car.

 

My car is not a exception to the rule......it's a example what can be done when it's done with accelerating the car in mind. Which is what most are here for.
Yeah I know.....everyone has a hart breaking dyno My ricer math comes from being on both. Funny how when that happens it turns into fact. Another fact is I have been on 3 different dyno jets and none varied more that 2hp. The last dyno jet I was on the car made 413, it has gained 18hp since then......you do the math.
Yeah....we're talking 9 sec cars here . I was just saying your car don't run as it should.....and it don't. It runs bolt-on ls1 times with your mods.



You guys can either be butt hurt about what I said or you can keep a open mind and realize I've been ******* with these ls engines for a long time. All with exceptional results or non typical results according to you. The only real problem I see is that you think sub par performance is normal.

 

Your car is full weight I assume also??

There is a guy called ROBZ on the forums that has been 10.0's at 133 or so in a C5Z06 with a "stock" motor.

Question #1 is why are you so slow?

Question #2 is how are you running 131 mph in a heavy Fbody and he is only slightly faster?

 

HioSSilver, you're trapping 131 with 417rwhp? What is the engine in... VW Bug?

 

Just to clarify "robz" ran 9.98 with a TFS 215 heads ported by Brian tooley, with a custom 230's cam..

Freak of nature

 

This is nice, I may be contacting you soon, thank you!

 

If your gonna ask me why so slow you should first ask your self that question. A question to which I have already answered.

They went 10.1 @ 134....not sure if their best mph was on their best et pass.

No my car is not full weight.......why would any car be full weight that you are modding for performance?
Nope
Not freak of nature......they like I are just doin different **** than the same ol' same ol'. They do a great job and are more drag oriented than I.

 

Yes freak of nature, granted they had other things done. Like a badass face plated t56... But nothing else out of the norm

It was TFS 215 heads ported by tooley
Custom cam
Yells Terra's
3/8 pushrods
Morel lifters

Pretty common I'd say

He got so much heat from people saying he sprayed nitrous that he ended up leaving this forum

I bought the whole top end kit from Robz's 9 sec c5 about 5 years ago.. The cam was top secret lol

I even called tommy from anger management after I purchased it and he couldn't remember the specs, just my luck.