Big Block got smoked by a...

ManyScalps · #1 (**permalink**) 05-29-2005, 06:32 PM

Watched a video of a street race a while back. Twin turbo Supra vs. BB Cobra. Supra had 700 hp and the BB was near that as well. It was not close. Supra blew the Cobra away. They did roll ons, 30 and 60 mph. Right away, the BB was left in the dust.

I thought the BB would win seeing as it weighs considerably less 2400lbs and the Supra over 3600 lbs with similar hp and tq numbers.

I understand there are many variables involved - just thought the race(s) would have been close.

SCOBRAC · #2 (**permalink**) 05-29-2005, 06:37 PM

700 horsepower Cobra what? Who's car was it? I would guess fewer than 50 cars that meet this description exist on the planet. A few more specifics please.

Just this morning I was sittling in my yard and saw a pig fly by...

Dennis Kelley · #3 (**permalink**) 05-29-2005, 06:50 PM

Most 700hp motors that people talk about are 280 hp at the rear wheels. Should have seen the expression on the big block Chevy face when dyno operator quoted 280hp at the last dyno day. I have an aquaintence that had a supra at the dyno that did 500hp at the wheels. His dyno is at huntingtonstreets.com under the dyno section. His name is Anthony. His car will not hook but it does an incredible mph.

I'd like to see that video.

Later Dennis

SCOBRAC · #4 (**permalink**) 05-29-2005, 07:21 PM

What Dennis said...

I did the math. A 2400 pound anything with "700 hp" will turn (should) a quarter mile in 9.6 seconds. A 3600 pound anything with "700 hp" will make the same trip in 11 seconds, not exactly smoked but the Supra should lose by over a second and a half.

I'm not sure how or why a 2400 pound Cobra would get "smoked" by anything weighing 3600 lbs... If I had a dollar for every time I heard someone tell me about their big horsepower ride I knew was making half what they claimed I'd be rich by now.

DAVID GAGNARD · #5 (**permalink**) 05-29-2005, 07:38 PM

There are two kinds of people out there when it comes to dynos;1.people that use a dyno to find out what they have and improve on it........2. people that do not really want to know what they have,quoting big numbers will do for these guys...........

Too many people start out with a motor knowing close to the hp it should put out,then they look at the adds in Summit or Jegs and start adding hp with their bolt-ons,at least the add claims these gains and they come up with a number.............many have left a dyno with their heads hanging low.....................

I have seen many "500hp" Mustangs and hot rods and have beat many (at the drag strip of course),with my measely 350 hp 351-W in a 3200 pound 65 Mustang on Wal-Mart tires!!!!!!!!!!!!!!!!!!!!!!!!! go figure!!!!!!!!!!!

David

cobrashoch · #6 (**permalink**) 05-29-2005, 07:55 PM

I'll take that race anytime, anyplace and even use my big pulleys.
Street cobras don't hook very hard usially but mine sure as hell does. It's not a apples to apples compairison either. Blown Supras run "B" gas. They are expected to run that good, they should run better. A true 450 horsepower will give a 2500 lbs car a high 9 to mid tens for bracket cars if they hook. My neighbors NHRA B-stock automatic Road Runner (factored 380 horsepower) that weighs 3200 lbs can run 10.4's to 10.5's. and I see a assortment of low horse bracket cars that run there too. My Cobras class is A-gas, so I'll run him anytime on index anytime and right now my car is sick.
Another thing most young'uns don't understand, it's not what you race, it's WHO you race.
cobrashock

Dennis Kelley · #7 (**permalink**) 05-29-2005, 08:05 PM

The dyno is great for tuning but the track tells the tale.go to the track and someone will smoke your car. If your ego can stand it you'll come back with a better set up . I'm with you David I see a lot of big power numbers quoted by misinformation.

I like racing against myself at the local 1/8 mile drag just to impove my reaction times. I'll never see 700hp but if I can get my car to hook maybe low 8's in the 1/8.

later Dennis

cobrashoch · #8 (**permalink**) 05-29-2005, 08:13 PM

I'll take that race anytime, anyplace and even use my big pulleys.
Street cobras don't hook very hard usially but mine sure as hell does. It's not a apples to apples compairison either. Blown Supras run "B" gas. They are expected to run that good, they should run better. A true 450 horsepower will give a 2500 lbs car a high 9 to mid tens for bracket cars if they hook. My neighbors NHRA B-stock automatic Road Runner (factored 380 horsepower) that weighs 3200 lbs can run 10.4's to 10.5's. and I see a assortment of low horse bracket cars that run there too. My Cobras class is A-gas, so I'll run him anytime, on index anytime and right now my car is sick sick sick.
Another thing most young'uns don't understand, it's not what you race, it's WHO you race.
cobrashock

ManyScalps · #9 (**permalink**) 05-29-2005, 09:34 PM

If I recall, the Cobra had around 650 hp.

I would agree and assume that the dyno rating was way off. Of course there are the variables like a missed shift, it didn't hook up, or poor driving over all. Perhaps the Supra was closer to 1000hp.

SCOBRAC · #10 (**permalink**) 05-29-2005, 09:58 PM

Or 2,000... That pesky pig is flying by again, gotta run...

jdog · #11 (**permalink**) 05-29-2005, 11:07 PM

I've see that video and it was a small block, and from the sound of it , not running very well!

Besides, it looked staged to me. Everything filmed from the cobras angle to get a good shot of the supra winning!

The Cobra kept getting beat bad, and they would do it again & again, as if trying to get a 'convincing' take! Why would the Cobra keep comming back for more? I ain't bite'n!

I could beat a Cobra with a bicycle if the Cobra wanted me too!

jdog

lovehamr · #12 (**permalink**) 05-30-2005, 05:40 AM

I believe that this sort of thing is why they (the sewing machine drivers) have their own race sanctioning body. So they can live in their self made dream world. There is no doubt in my mind that there are some incredibly fast imports out there but to make one that fast it seems you have to have mega bucks. I don't know if you guys remember when you were teenagers but when I was there I didn't have that kind of cash and it seems that V8s are still the best bang for the buck. My daily driver is a stock 1988 Saleen, nothing real special in the power dept. The other day this kid in an RSX jumps on me, normally I don't get sucked into these things but the road was empty, the weather was good,....... what the hey. After spanking him for two lights he pulls up and is dumbfounded by the fact that he got beat, by a MUSTANG. I just told him that it was simple math, nothing cosmic or magic about it. Who knows he might be reading "Hot Rod" now rather than "Import Tuner." LOL

Steve

GeorgiaSnake · #13 (**permalink**) 05-30-2005, 07:37 AM

We have a Supra running around Atlanta that has well over 700 hp at the rear wheels. I doubt many of our Atlanta Cobras could keep up with him.

Randy

MysteryTrain · #14 (**permalink**) 05-30-2005, 07:48 AM

It was a 351, suposedly, it was stroked. That video popped up here a year or so back. There is an old thread where the CC members debated the authenticity of the video. According to folks in the "know" the Supra was over 800hp with Nitrous and the cobra wasn't hooking up well, although even if it was hooking up, it probably wouldn't have won.

Don't fret, there's plenty of Cobras around that would make the Supra look bad, small and big block. Similarly, there's plenty of Cobras that could be dusted by other modern Japanese machinery with enough money in their motors.

MT

jdog · #15 (**permalink**) 05-30-2005, 08:58 AM

I might have to bring my car out East, except there are plenty of Supras around here to prove my point!

Check my photo gallery for pic's of my engine, the build spec's are on the FE Specialties web site. It's the 427fe side oiler stroker motor. Except mine is a vintage 66' block. 550hp & 585tq!

When I get through adding the 200hp NOS kit, 750 hp! In a 2,500lbs car. With the widest M/T slicks I can stuff under the fenders!

Supra's? Hah! Bring-it! And you had better pack a lunch!

Won't be no punky 'rollin starts'! Dead starts! I will EAT Supra's! And Vipers, and Vette's!

There are still some 'blown' tubbed street rods running around town that I wouldn't even try!

jdog

ManyScalps · #16 (**permalink**) 05-30-2005, 07:49 PM

jdog,

Thanks for chiming in. I was positive they said it was a BB but you could be right, and I agree; it very well could have been staged.

I guess a properly tuned and driven Cobra with 600 hp/tq would be very quick up to 140mph.

What is the widest rubber that can fit on the rear? 335's?

I suppose a Cobra set up for straight lining it would be hard to beat {soft rear end, sticky tires, etc.}. Has anyone put launch control or traction control on their Cobra? Some GT40s [replicas] have this {Roaring Forties turnkey cars}.

Curt C. · #17 (**permalink**) 05-30-2005, 08:08 PM

Lets not forget that the fastest quartermile on record for an IRS car is a Supra - somehwere in the 7's. Not a Cobra, not a Viper, but a Japanese made Supra. Scary heh? There are two Supras around here that produce between 800 - 1000 RWHP. The faster one has run in the 8's. These cars are running Chevy automatic transmissions. Turbos can produce some awesome power. I once saw an older style RX7 with is 71 or so cubic inches and a turbo twice the size of the motor run in the 8's. Technology cometh.

jdog · #18 (**permalink**) 05-30-2005, 08:29 PM

Yeah, if I remember Shelby built a twin Paxton 1000hp Cobra! Don't know what that thing would do!

For running around town, my little 750hp 2500lb Cobra will have little to fear!

jdog
P.S. Besides, Cobra's look so much Cool'er than a Supra!

Cobrabill · #19 (**permalink**) 05-30-2005, 09:54 PM

Some of you really need to do your homework before you open your yap.
Why don't you genius' tell me what motor(make) is in the Supra?Hint:it ain't Japanese.

Jdog-550hp&585 T out of a stroker?I was making more than that with a .17 over 427.Better make that a 500HP shot.You're gonna need it.

SOBRAC-pigs do have wings.Come to Tucson-i've got a inline 6 240Z that with take your doors off.

jdog · #20 (**permalink**) 05-30-2005, 10:15 PM

I should have said Bored & Stroked to 474ci! With Erson roller rockers, ect... you can see the build spec at FE Specialties website. It is the 427fe side oiler stroker motor.

This engine was ported & polished by an FE specialist!
I will stand on 550hp! See pic's in my photo album.

Why would a Supra be such a 'Supercar'?
They're pretty heavy?

jdog