12psi Vortech Cobra vs 4400 lb land whale

[SSMOKEM]

I don't ususally post kills, but this one was fun. The Cobra owner was a real gear head, and very pleasant. My 4400lb Impala has the stock bottom 350, standard mods and a bit of juice, while the Cobra is spinning a 12psi Vortech on the 4 cam modular motor.

We line up and do our burnout, I'm on BFG DRs, and he's on Nittos, both 275s. I have to admit my burnout was much nicer

Second yellow, and I hit it. Dead hooked with a 1.72, but the poor Cobra is still sitting there, spinning. I knew I had him

By the 330, he had to be a good 3 Impala lengths behind me. He looked like he might be closing in though, but as I shifted into 3rd I start pulling away a bit. By the 1/8 mile it was definitely all over. Went thru the traps at 117.92 to his 116.65, and got him by 0.58 seconds I also gained 1 mph on him from the 1/8 mile which really made my day. He wound up with a 2.0 60' time.

Back in the lanes I told him he better get some slicks, and he replied that I should just slow down a bit.......As I said, a very nice guy

There is nothing quite as much fun as some good natured rivalry without all the trash talk.............I'm sure he'll be ready for me next time!

[FivepointOH]

That's one good running impala you got there. I've always been a fan of the lt1 impalas and wanted one for a daily driver, is yours a daily driver? Oughta be a beast if you drop that new engine in it....(like it's not already

[Jeb_Bush_2000]

George, ever wonder why we don't see any Z24 kills posted here?


Nice run, BTW. Those are some sick times for a 6-passenger sedan.

[Skyman]

Why dont you disclose what youve done to that car.

You either have a serious amount of juice or some good head work.


Skyler

[Unit 5302]

Stock bottom end and 500-600hp? So how'd you pick up the 200-300hp over stock with a 10.5:1 CR engine?

Sorry but this kind of stuff usually raises the red BS flag, so we just gotta here the mods to make sure nobody's trollin, lol.

[Turbo99GT]

There is definitely something missing from this story. I have seen Impalas run and it would take a serious amount of spray to get that heavy car to accelerate that fast plus some other mods. My guess is P&P heads or aftermarket heads, intake and a 150 shot min. Damn I'm glad I have a turbo with a boost controller. If that had happened to me, I would have put a turn in and raced again with a very different outcome. That is definitely a sleeper Impala running some damn good trapspeeds.

[lx mike]

check his web site out and you'll see how he can run that quick.

[Turbo99GT]

Damn, he is spraying the crap out of it. It 's actually smart to get a big car like that moving. Obviously it works well. Nice ride man.

[SSMOKEM]

Hey Skyler,

You're correct abouth the head flowing well. As MikeLX mentioned, it's all on my site. If you go there, the time slip of this race is the one on the right.

Here is a quick recap of my major power mods:

Stock bottom, pistons, crank, rods, etc.
Stock iron heads, ported to 250cfm @ 0.500lift, stock valves
Comp XTreme cam (224/236, 0.502/0.520, 113+5 LSA)
1 5/8" Tri-Y headers, 2 1/2" duals with Flowmasters
3800 stall 10" billet converter
3.73 gears in stock rear
NX 2 stage, 75hp 1st stage @3000, 125hp 2nd stage @ 4700

Without the juice, I've run a best of 13.11 @ 107.15, and I believe I'll dip into the 12s soon enough. Those LT1s are a lot stronger than people think. My HP calculator tells me I'm, running 425hp NA at the crank and 580 on the juice.

I have a buddy with a 92LX 302 who also has a stock bottom, even a stock cam, but all the bolt ons and heads ported by the same guy that did mine, and he ran a best of 11.0 @ 122 on a 150 shot. Looks like head work is the common denominator between our cars.

Don't worry guys, I'm NOT a troll What you see is what you get..........

By the way, here is what my car sounds like at idle: http://home.cfl.rr.com/cherrybomb/NewCam.wav

[Unit 5302]

Well, obviously the calculator is flawed, because picking up 155hp on a 125 shot isn't normal. From my knowledge the LT-1 has aluminum heads, not iron. If it had iron heads your engine would be gone with running a 125shot on that kind of compression.

Running the stock bottom end and rear end? Sounds like you're lucky to me.

Oh well, looks like you've go the numbers.

[SSMOKEM]

hey Unit 5302,

Well, obviously the calculator is flawed, because picking up 155hp on a 125 shot isn't normal

If you read my post you would notice I said 75hp 1st stage and 125 hp 2nd stage. This gives me a total of 200hp. Since the N2O is on around 9 seconds during the run, this gives me an average HP boost of 150/160 over the run.

From my knowledge the LT-1 has aluminum heads, not iron

I guess you need to go back to LT1 school All 94/96 Impalas came with the iron heads on their LT1s. They have higher stock flow numbers than the aluminum heads, and less compression. Stock is 10 to 1, mine are 10.25 to 1 due to milling the heads. The only drawback of the iron heads is the weight.

If it had iron heads your engine would be gone with running a 125shot on that kind of compression.

Iron heads are much more capable with N2O than aluminum heads and generate more power because they retain more heat. Detonation is avoided thru the reverse flow cooling feature of the LT1s. My buddy Jorge is running 11 to 1 compression on his stroked LT1 and a 250 shot. Of course he's MUCH faster than me

Running the stock bottom end and rear end? Sounds like you're lucky to me.

I've been running the 200 shot for 2 years and over 120 track runs. I'm sure you'll agree that this is much more than just luck. The stock Impala rear is an 8.5" 10 bolt. One of my Impala buddies pulls mid 1.5s, and my other buddies get mid 1.6s on it. I don't generate enough power to break it since I've never gotten into the 1.6s.

As a matter of fact, I still have the original Auburn Posi that came with the car. I now have 57000+ miles on it and it's still smoking both tires

Oh well, looks like you've go the numbers.

Hard to argue that

By the way, out of my little group of 5 Impala buddies, I'm the slowest, but the only one still on the stock shortblock, every one else is already stroked.

[Unit 5302]

Lotsa stuff I didn't know about the Impala in there. Pays to know the competition. The numbers that I had came from the book, as far as the 10.5:1 CR. Running a 200shot on iron heads and 10.5:1CR (like the book suggested) would be a receipe for a junkyard on just about any engine. Iron heads retain more heat, that is correct, which gives more power than the aluminum head everything else being equal, but since they retain more heat they are much more prone to detonation.

You've had 120 passes on the current setup? Interesting. I'm suprised the engine is even running.

[Milktasd]

I always liked that body style of Impalas. But now I have to look at each one as a potential race. Well...maybe not if it is a grandmother. LOL

[Nitrous Al]

Are there any fast Mustangs in Ormond Beach, FL out there to shut this guy up? He's on the Camaro messageboard bragging how he beat that Mustang. Can someone drive down there and smoke that Impala.

[Skyman]

Sounds pretty killer. What kind of fuel and how much timing retard are you running w/ the full 200hp on.

Just curious how big a fuel pump you are using too.

Im going to be putting a 255lph pump in and going with a 150shot soon. Should trap 119-120 Im hoping.

Skyler

[Dark_5.0]

Damn Unit your being awfully critical of such a fast and sweet machine...Whats up with that

Nice times SSMOKEM ......I hope to run like that by this fall....That is really impressive for a 4400lbs car.

I dont care what brand of car you got.....It deserves respect and you got mine

[1BAD89]

You've had 120 passes on the current setup? Interesting. I'm suprised the engine is even running.

Running the stock bottom end and rear end? Sounds like you're lucky to me.

Oh well, looks like you've go the numbers.

Don't mind this guy SSMOKEM, he's never raced at the track, he just reads specs and spouts off all the time about how he's always right, blah, blah, blah, it's hilarious. Sounds like you have a killer car man, and sounds like you have alot of time invested in it, good luck with it.

[SSMOKEM]

Thanks guys. I'm not here to start flame wars, just enjoying the view of the other side

Nitrous Al, my buddy's 92LX SSMOKES me all the time!!! I Don't need to be reminded But you have to admit that a 4400lb car smoking the Mystic Vortech Cobra is a good story...... Besides, I get all the Mustang action I want at Orlando Speedworld. I posted the exact same post at CamaroZ28.com of which I've been a member for 4 years. Let's not be so touchy......I've been beaten MANY times, and have handed out my own kills many times too.

Hey Skyler,

I'm running 1deg retard with the 75shot and 3 more on the additional 125, for a total WOT timing of 33. I normally run 37deg NA at WOT and 46 at cruise. My idle timing is 28deg.

Just be careful with the 255lph intank pump and a big shot. My buddy put one in his 92LX and we did a flow test at 40psi. We discovered he only had 170lph at the fuel rail. He had to add a helper in-line to run right (11.0 @ 120+)

I have the Aeromotive in line, and a fuel cell. I measured the flow at the rail and it gave around 355lph at 43psi. Here is a pic of the stock pump (almost identical to the Mustang pump) next to the Aeromotive:

[Unit 5302]

I was just trying to determine the truth. You don't often see a full size car like the Impala trapping at 120, lol. I don't have an issue with your combo, other than the desire to believe the LT-1 isn't that much superior to the Ford's internally.

I was just suprised that the LT-1 was strong enough to double it's hp output on the stock internals. It would be nice if Mustang's were built that way.

Don't worry about 1BAD89, he just never has a valid point to bring to a debate and is tired of losing them.

[SSMOKEM]

Hey Unit 5302,

Thanks, man. But it's not only the LT1s that can double the ouptut. My buddy Jack's 92 LX is pumping out 525hp on the stock 5.0 bottom, which I'm sure is more than double the original power.

Both he and I are very anal about attention to detail. Neither of us has ever broken a motor part, a rear end part or had to be towed since we started running together 5 years ago with these two cars.