Dyno Guesses & Bench Racing Forum - 99 Z28 VS 03 Cobra

Just wondering how my car would go against my friends 03 Cobra...mods upgraded pulley, full exhaust, and intake... My mods are in my sig... Plus a 100 shot of nitrous... Races will be from a dig..

are you an auto or a stick and do you have drag radials?

If your on a tire, I don't think it will be a problem.

im an auto with drag radials...

you should have no problems at all whooping on pullied cobras


When they get whippled or equipped with a kenne bell youll need heads and cam to fuck them up.


A nice 3600-4000 converter would do wonders for your car

I believe you will take him, just watch out because he could have a ported blower which could make another 50+ rwhp and you will never know. Or he could have a lower pulley that could add 4lb or 6lb of boost, which is good for more power also. Or he might have both.

Blower is not ported... and he said he would outrun me with his street tire..lol

Do you trap 118-123mph? If not, grab some lube cause you're gonna need it.

Sounds like a drivers race to me.You might edge him out.If you spray you got him.

Sarge is dead on, good luck

Most of the F bodys are saying YES... and the cobra guys are saying NO... i guess will wait n see

Most of the F bodys are saying YES... and the cobra guys are saying NO... i guess will wait n see

Maybe its because, who knows, ME AND JAY SPEAK FROM EXPERIENCE? :bang:

From a dig I think you got em depending how long you go for.

if he is on street tires and you are on drag radials.. from a dig, you wont need spray..

from a roll.. thats a different story..

just go from a dig and spray.. as long as you hook it wont be much of a race..

brake before 120.. :lol:

thanx for all the advice... ill really hope my car holds to its own..

The Cobra's(03/04)that I have seen trap about 112-115mph.Like I said if you spray you have him.If you dont...you better out drive him.Motortrend got a 13.0@111 out of the 2010 Camaro SS also

Im spraying for sure... cant just go all motor on a pullied cobra.. throwing on mickey thompsons ttoday... lets see if he wants to bring out the car.

Go from a dig and he's toast!

Go from a dig and he's toast!

I agree...but you got to take into account he is not stock either.If he can drive and weather permitting...he will run deep into the 12's and trap high.

I agree...but you got to take into account he is not stock either.If he can drive and weather permitting...he will run deep into the 12's and trap high.

Yeah I see what your saying. Still though a pullied/bolt-on Cobra on street tires is gonna have his hands full on the launch.


O.P., your next mod should be a stall!

from a stop with DRs and spray you should win.

With spray and drag radials from a dig you should take him. Your next mod should definately be a stall.

thats my next mod including a heads n cam pkg... and then ill really blow his doors off.

post some results man...whether you win or lose.

Vid!!!!!!!!!!!!!!!!!!!!!!!!

Ill post something when it goes down... ive been trying to make him run me but everytime its another excuse.. ill keep posted

Vid!!!!!!!!!!!!!!!!!!!!!!!!

agreedx2

When they get whippled or equipped with a kenne bell youll need heads and cam to fuck them up.

I suppose the setup is more important than anything, but there aren't
many H/C LSx street cars running mid 10's and trapping mid 130's.
I can't even tell you how many H/C LS1's I've beaten...or built LS1's
with blowers/turbos/nitrous for that matter. Your statement isn't all
that accurate.

You would've had your hands full with my car back when I only had a pulley and a few bolt ons (bottom 11's)
given the mods in your sig.

I suppose the setup is more important than anything, but there aren't
many H/C LSx street cars running mid 10's and trapping mid 130's.
I can't even tell you how many H/C LS1's I've beaten...or built LS1's
with blowers/turbos/nitrous for that matter. Your statement isn't all
that accurate.

You would've had your hands full with my car back when I only had a pulley and a few bolt ons (bottom 11's)
given the mods in your sig.

That is pretty crazy.I was always under the impression the LS1 engine responds to mods better than the modular engines.

That is pretty crazy.I was always under the impression the LS1 engine responds to mods better than the modular engines.

The LS platform responds better to mods when comparing naturally aspirated setups. That's the beauty of the LSx platform. N/A power is outstanding, where the mod motors don't have that. We're talking about simple bolt ons to a blower car though, big difference.

The LS platform responds better to mods when comparing naturally aspirated setups. That's the beauty of the LSx platform. N/A power is outstanding, where the mod motors don't have that. We're talking about simple bolt ons to a blower car though, big difference.

I would have to agree with you there. 03-04 4.6 DOHC and 07-newer 5.4DOHC engines are hard to beat.Both engines have a strong bottom end and forged pistons.The blown modular engines are a different monster all together.Speaking of the 03 Cobra,anyone seen this vid?http://www.youtube.com/watch?v=b5taKWao_bA

I suppose the setup is more important than anything, but there aren't
many H/C LSx street cars running mid 10's and trapping mid 130's.

What's your perception of a street car? Mine is any car that can be driven on the street! I can think of a dozen H/C LS1 cars that have/had run 10's or better at 130+ traps off the top of my head, that could be driven/raced on the street. Several of those cars are owned by members on here! I was one of them. My 404 Cam Motion SR/235cc headed combo was good for mid-low 10's at 130-132mph on motor. I use to drive that setup on the street all the time. Even had my fair share of 03/04 Cobra rapes while at it.


I can't even tell you how many H/C LS1's I've beaten...or built LS1's
with blowers/turbos/nitrous for that matter. Your statement isn't all
that accurate.

Funny, I can't even begin to remember how many Termi's i've beaten in the past, on the street and track! Seems now with the J-Trim only the turbo cars give me solid run. There's nothing like seeing the look on a Cobra owners face when I pop the hood to reveal that big shiny huffer underneath. Then he/she soon realizes this is not your average cam/bolt-on LS1. :chug:

What's your perception of a street car? Mine is any car that can be driven on the street!

A very good friend has driven his 6.60 Outlaw 10.5 car on the street.
I guess it's a street car then? :rolleyes: Your definition of a street car needs work. :nod:


I can think of a dozen H/C LS1 cars that have/had run 10's or better at 130+ traps off the top of my head, that could be driven/raced on the street.

Of course, so can I. Perhaps your reading comprehension skills are lacking?
There definitely are 10 second H/C cars (and 9 second H/C cars). However, there aren't that many in comparison to all the H/C cars out there.

...but there aren't
many H/C LSx street cars running mid 10's and trapping mid 130's.

Several of those cars are owned by members on here!

What would you know about it? I've been here for more than 7 years and
I'm well aware of what a H/C LS1 can do and I know a hell of a lot of people here that have done it. So, I certainly don't need to be lectured by
some new guy about our members here. But thanks for your concern anyway. ;)


I was one of them. My 404 Cam Motion SR/235cc headed combo was good for mid-low 10's at 130-132mph on motor. I use to drive that setup on the street all the time. Even had my fair share of 03/04 Cobra rapes while at it.


Well, congrats. That's a pretty good ET for an all motor 404.
It sounds like you ran into some week 03/04 Cobras though.


Funny, I can't even begin to remember how many Termi's i've beaten in the past, on the street and track!

Termi's? :jest: :wrist:


Seems now with the J-Trim only the turbo cars give me solid run. There's nothing like seeing the look on a Cobra owners face when I pop the hood to reveal that big shiny huffer underneath. Then he/she soon realizes this is not your average cam/bolt-on LS1. :chug:

"Shiny" impresses ricers, not me. I'm used to seeing 114mm turbos. Everything else is pretty cute in comparison. Congrats though, it sounds
like you have a pretty potent combo.

:corn: lol

:corn: lol

Show some AZ love and pass that pop corn...

I suppose the setup is more important than anything, but there aren't
many H/C LSx street cars running mid 10's and trapping mid 130's.
I can't even tell you how many H/C LS1's I've beaten...or built LS1's
with blowers/turbos/nitrous for that matter. Your statement isn't all
that accurate.

You would've had your hands full with my car back when I only had a pulley and a few bolt ons (bottom 11's)
given the mods in your sig.

My Daily Driver car ran 6.90's@98MPH with headers, 125shot, 3600 converter, drag radials, and the usual other bolt ons. There wasnt a single bolt on/pullied cobra in the area, running better than 7.20-7.30@ low-mid 9XMPH consistantly.

Maybe with those east coast -DA days its possible, but out here in +2000DA regularly The cobras don't run nearly as strong in the heat.

With just a cam and different wheels and some suspension pieces I run 6.5's@103-104mph and 10.20's@132 in +2500DA. With a FAST 92 Intake and some ported heads Id easily be in the 9's.

I think it would be a close race but my cam only+nitrous car regualrly beats down 90% of the600-700RWHP whippled cobras and GT's at the track, However if they throw in some race gas and are set on max effort mode theres no doubt a 2.8 whippled cobra @25+psi on C16 could probably edge out my junk ass cam and nitrous combo.

Moral of the story is yes I agree that a good amount of LSX H/C cars don't run as hard as they should, whether it be mismatched combos, shitty drivers, or various other excuses, but you can make the same case for 03-04 pullied/bolt on cobras.

A H/C/N20 in an Fbody can run right with and 50% of the time right past whippled Cobras on the street and at the track. Both cars are cabable of mid-high 9's on stock shortblocks. Both have potential.

A very good friend has driven his 6.60 Outlaw 10.5 car on the street.
I guess it's a street car then? :rolleyes: Your definition of a street car
needs work. :nod:

Oh here we go with the "my friend has a spaceship that can do the 1/4 mile in 2 seconds" thing. If it's not related to what you've got then I really don't care.



Of course, so can I. Perhaps your reading comprehension skills are lacking?

Put downs are just a cover-up for hurt feelings and insecurity.


There definitely are 10 second H/C cars (and 9 second H/C cars). However, there aren't that many in comparison to all the H/C cars out there.

I don't see your point. You said there aren't "many" H/C cars that run in the mid 10's at 130+. That's like me saying there aren't many KB or Whipple Cobra's around where I live, but I know there are enough out there to not consider them a rarity.


What would you know about it? I've been here for more than 7 years and
I'm well aware of what a H/C LS1 can do and I know a hell of a lot of people here that have done it...

Congradulations. Here's your cookie!


Well, congrats. That's a pretty good ET for an all motor 404.
It sounds like you ran into some week 03/04 Cobras though.

You mean "weak" right? If you call several KB-charged and ported/pullied Cobra's weak than I guess it is what it is. Just remember, YOU said it not me!!


"Shiny" impresses ricers, not me. I'm used to seeing 114mm turbos. Everything else is pretty cute in comparison. Congrats though, it sounds
like you have a pretty potent combo.

I plan on doing my first turbo build next. For now I think i'll enjoy my centrifugal for a little while longer.

:chug:

As far as The OP's question goes, If you had a converter I'm sure the race would be all yours... 450RWHP and 500RWTQ that your car should be making, would be enough to make this a drivers race, whoever gets off the line first will probably take it.

With a 6 speed on the street he may have some difficulty getting off the line. In addition to the heat soak he'll have from driving it around town, unless you agree togive him 30 minutes for him to ice down his heatsoaked blower:wrist:

Congradulations. Here's your cookie!

You mean "congratulations" right?

My Daily Driver car ran 6.90's@98MPH with headers, 125shot, 3600 converter, drag radials, and the usual other bolt ons. There wasnt a single bolt on/pullied cobra in the area, running better than 7.20-7.30@ low-mid 9XMPH consistantly.

Maybe with those east coast -DA days its possible, but out here in +2000DA regularly The cobras don't run nearly as strong in the heat.

With just a cam and different wheels and some suspension pieces I run 6.5's@103-104mph and 10.20's@132 in +2500DA. With a FAST 92 Intake and some ported heads Id easily be in the 9's.

I think it would be a close race but my cam only+nitrous car regualrly beats down 90% of the600-700RWHP whippled cobras and GT's at the track, However if they throw in some race gas and are set on max effort mode theres no doubt a 2.8 whippled cobra @25+psi on C16 could probably edge out my junk ass cam and nitrous combo.

Moral of the story is yes I agree that a good amount of LSX H/C cars don't run as hard as they should, whether it be mismatched combos, shitty drivers, or various other excuses, but you can make the same case for 03-04 pullied/bolt on cobras.

A H/C/N20 in an Fbody can run right with and 50% of the time right past whippled Cobras on the street and at the track. Both cars are cabable of mid-high 9's on stock shortblocks. Both have potential.

Forgive my ignorance but...what is DA? I am familiar with hg and kpa.

Forgive my ignorance but...what is DA? I am familiar with hg and kpa.

Density Altitude. mix of the humidity, temperature, altitude, and other factors. The higher the number, the worse it is.

Otherwise known as Density Altitude as well.

Otherwise known as Density Altitude as well.

Fuck, I couldn't remember exactly what it was, thanks lol

Thanks! Always nice learning new things.

DA calculator for the lazy

http://wahiduddin.net/calc/calc_da.htm

my buddy has a 03 cobra all stock with supercharger and i beat him every time down at the track and street. mine just has full exhaust and a lid 02 z28

could be the driver to... haha

wow this got really intense...lol.. well thanx again for all the advice, still waiting for his answer..

If you call several KB-charged and ported/pullied Cobra's weak than I guess it is what it is. Just remember, YOU said it not me!!

If those KB Cobras aren't running bottom 10's, they are weak. Period.
What's that blower car of yours run? I'm sure it's a monster.

If those KB Cobras aren't running bottom 10's, they are weak. Period.
What's that blower car of yours run? I'm sure it's a monster.

Your car's weak :secret:
:jest:

sorry I didn't get pics or a vid to you, I've been real sick the past few days :barf:

Your car's weak :secret:
:jest:

sorry I didn't get pics or a vid to you, I've been real sick the past few days :barf:

sarge is just making his nightly asshole posts.. :lol:

If those KB Cobras aren't running bottom 10's, they are weak. Period.
What's that blower car of yours run? I'm sure it's a monster.

9.7 @ 150.5 on a "soft" launch. 1.516 60', T-56, 3.89 gear, 3872lbs Raceweight.

Here's my graph. Enjoy! :cool:

http://i284.photobucket.com/albums/ll35/n20lt4/dynograph.jpg

9.7 @ 150.5 on a "soft" launch. 1.516 60', T-56, 3.89 gear, 3872lbs Raceweight.

Not bad! Lots left in it if you can get it to hook.

Here's my graph. Enjoy! :cool:



Graphs don't mean much to me.

Graphs don't mean much to me.

Still feels pretty good to see your car put out amazing numbers, especially after you've spend a gazillion dollars and hours building it!

Amazing power and TQ curve!(lengthy).

Still feels pretty good to see your car put out amazing numbers, especially after you've spend a gazillion dollars and hours building it!

No question about that! :nod:

Put downs are just a cover-up for hurt feelings and insecurity. There's a difference between put downs for 'cover ups' and observant facts.

I
Congradulations. Here's your cookie!

You mean "weak" right? If you call several KB-charged and ported/pullied Cobra's weak than I guess it is what it is. Just remember, YOU said it not me!!
You meant 'Congratulations' right?

Absolute genius we have on our hands. :eyes:

Still feels pretty good to see your car put out amazing numbers, especially after you've spend a gazillion dollars and hours building it!YOu're quite the cocky SOB. Arrogance+Ignorance=Pathetic. Just keep that in mind, ok?

There's a difference between put downs for 'cover ups' and observant facts.

You meant 'Congratulations' right?

Absolute genius we have on our hands. :eyes:

YOu're quite the cocky SOB. Arrogance+Ignorance=Pathetic. Just keep that in mind, ok?

Eh, i'm not offended. It's pay day and i'm not in the mood to rant. I'd rather have a beer right now. :chug: :D