Top Secret GT300 Supra

It looks like Top Secret Japan is up to more insanity with another heavily modified Supra, this one built for top speed. While not hitting the 1000 horsepower mark again like their previous Supras, it is still massively fast with 720 hp. Why the power cut? This time they decided to go with a four banger 3S-GTE instead of the traditional inline-6 2JZ-GTE. Why? Notice in the following photos how the motor is pressed up against the firewall: at high speeds, balance is equally important as power, and so Top Secret figured a smaller and shorter motor would prove to be much more stable. This configuration allows the Supra to near the lofty 200mph mark--incredible for a turbocharged 2.2 L inline-4. It's actual registered top speed is marked at 194mph, but by now it may have found its way further along. Shown at the 2001 Tokyo Auto Salon, the GT300's 3S-GTE is mated to a 6-speed Getrag gearbox:

Exterior:

Engine bay up close. Look at all that empty space. Keeping the weight near the center of the car should allow the car to be much more manageable at 200mph speeds (720 hp from a 3S-GTE? Are there MR2s and Celica GT4s that can hit this mark):

Backside. The widened body makes this Supra massive and ought to further aid in grip and balance:

Niice.....:eek2:

I know that the Phoenix/Garage SPL MR2 hits more than 900 hp at the wheels. The 3sgte is a beast. It's used in the Castrol Supra for the Japanese GC racing. It's quite durable and puts out incredible power for a 4 banger.

Oh, that's right, I totally forgot that the Castrol Supras use the 3S-GTEs. Damn, who'd ever think that a road racing 4-banger could ever put out that much power?

This Supra is cool and fast !!
720 Bhp from a fourbanger ???
what are the full specs ??
:flash: :flash: :flash: :flash: :flash:

DID YOU GUYS SAY 4 BANGER?!?!?!?!??! :eek: :eek: :eek:

The supra is an inline-6

The Top Secret supra swaped in a 3sgte for a 50/50 weight balance

oh... well then that's alotta power for 4-cylinders :) i was wondering why there was so much space under the hood

:eek: :eek: :eek: :eek: :eek: :eek: :eek2: :eek2: :eek2: :eek2:

Quite nice!
One of the things anybody can do is throw the battery in the trunk to save on weight, LOL!

It's not a good idea to relocate the battery unless you know EXACTLY what you are doing. The engineers place batteries in specific locations to maintain a proper weight distribution, and eliminate engine vibration as well.

http://www.junauto.co.jp/reports/bonneville2001/akira3-01.jpg
http://www.junauto.co.jp/reports/bonneville2001/akira3-05.jpg
http://www.junauto.co.jp/reports/bonneville2001/akira-power.gif

here is the Top Secret running a test in New Zealand reaching incredibly high speeds

Some of the specs are:


2.2 liter stroker
T88 @ 25 PSI
Custom..... EVERYTHING!
HKS 272 cams
6 speed sequential gearbox
Custom Engine Management

It doesn't have THAT much horsepower, but the car is light as hell.

Originally posted by SoCalSupras
It doesn't have THAT much horsepower, but the car is light as hell.

I think that's exactly what they had in mind.

Originally posted by SoCalSupras
Some of the specs are:


2.2 liter stroker
T88 @ 25 PSI
Custom..... EVERYTHING!
HKS 272 cams
6 speed sequential gearbox
Custom Engine Management

It doesn't have THAT much horsepower, but the car is light as hell.
lightness isn't the key to top speed. HP and having a slippery shape (Cd) and small swept area in the front. It seems to me that at 700HP the car should be able have a higher top speed that 194 mph. The mclaren F1 has only 620 HP and hits 240. A 911 GT2 has 450HP and hits 196 mph. Not too impressive. The supra must have a lot of swept front area....probably that nasty looking body kit or something. Seems to me it is time to pick a different platform for high speed runs. The vette c5 hit 226 (radar gunned) with only 650Hp and absolutely no body modifications at all.

The best example of this is the new lambo. Right around 600HP (actually a little less), weighs about 3900lbs and has a top speed of over 205 mph.

I'm sure the GT300 wouldn't cost as much as some of those you've named (especially the McLaren). But yeah, the Supra isn't really what you consider to be a major competitor in the flats runs, just a nice step for the Japanese automakers and partsmakers.

there is an article in the December issue of super street on the jun spura pictured above. it claims that the beefed up engine is capable of 1300 hp. and at boneville it laid down a speed of 249 mph

aerodynamics plays a big role at those high speeds..look at lambos and mclarens..they are extremely aerodynamic and aren't nearly as tall as the Supra..

Yeah, they come up to your waist. That reminds me... the BS meter hits sky high when it comes to the Civics fitting under the semis in "The Fast and the Furious". Now all the newbies to the scene will probably think that they can 'slam' their Honda 'to the dirt' and be just as flat as any other exotic.

those trucks were lifted so that it would fit

yeah, i heard they had to lift the trailor several inches to pull it off.

lightness isn't the key to top speed. HP and having a slippery shape (Cd) and small swept area in the front. It seems to me that at 700HP the car should be able have a higher top speed that 194 mph. The mclaren F1 has only 620 HP and hits 240. A 911 GT2 has 450HP and hits 196 mph. Not too impressive. The supra must have a lot of swept front area....probably that nasty looking body kit or something. Seems to me it is time to pick a different platform for high speed runs. The vette c5 hit 226 (radar gunned) with only 650Hp and absolutely no body modifications at all.

actualy in regards to this comment, those cars that you mentioned all did that speed on a high speed test track, the 194mph that the supra ran was on a public road in new zealand, im sure if the car was run on the test course the speed would have been much higher, also it was raining, i have the video, honorable mention, i have to say this, is that the scoot rx7 did 199 in the rain and 215 later when it was dry, all on a public road, and yeah sure the mclaren is fast , but it gets its ass kicked pretty regularly in the all japan gt series, which was won this year in the gt 500 class by a supra, with the four banger in it, if you dont believe me go to www.jgtc.net and find out for yourself, put the car on a test track like the mclaren and porche, and i still may lean towards the maclaren but it would be close, racing beat rx7 242 mph in 1995, jun supra recently did 250. i think that the supra is not aerodynamicaly chalenged, its just that the 194 was on a public road and also it was said the car ran out of road in forth and its a six speed ;). I would also like to point out that the jun supra and racing beat rx7 that ran at bonivelle speed thats a two way average so the overall top speed should be faster if we are talking about all out top speed here ;) top speed has to do with balance, weight, aerodynamics, hp, and gearing, and also how much road you have in front of you, so all in all 194 on a public road in fourth gear, in a six speed ant to shabby:D but i still like rx7's more scoot scoot scoot:finger:

Anyoen knows why they use 4cyl engines in the Supras in JGTC? HEck, they used the same engine when they ran on the Le mans. I have a neat video of it(Supra GT), the car kicks some serious arse!

Originally posted by Mid_KnightFD


actualy in regards to this comment, those cars that you mentioned all did that speed on a high speed test track, the 194mph that the supra ran was on a public road in new zealand, im sure if the car was run on the test course the speed would have been much higher, also it was raining, i have the video, honorable mention, i have to say this, is that the scoot rx7 did 199 in the rain and 215 later when it was dry, all on a public road, and yeah sure the mclaren is fast , but it gets its ass kicked pretty regularly in the all japan gt series, which was won this year in the gt 500 class by a supra, with the four banger in it, if you dont believe me go to www.jgtc.net and find out for yourself, put the car on a test track like the mclaren and porche, and i still may lean towards the maclaren but it would be close, racing beat rx7 242 mph in 1995, jun supra recently did 250. i think that the supra is not aerodynamicaly chalenged, its just that the 194 was on a public road and also it was said the car ran out of road in forth and its a six speed ;). I would also like to point out that the jun supra and racing beat rx7 that ran at bonivelle speed thats a two way average so the overall top speed should be faster if we are talking about all out top speed here ;) top speed has to do with balance, weight, aerodynamics, hp, and gearing, and also how much road you have in front of you, so all in all 194 on a public road in fourth gear, in a six speed ant to shabby:D but i still like rx7's more scoot scoot scoot:finger:
even if all you say is true...i can't read that web site..i know "0" japanese. You are talking about heavily, heavily modified cars..I'm sure if you turbo charged a mclaren it would run quite a bit faster then 243! Of course the F1 costs quite a bit more then a Rx-7 or a supra to buy and modify!! :D

There isn't a car from the factory that runs with the McLaren F1 until the new bugatti comes out. Of course they mclaren was a tiny limited production. I would love to see how fast a 1000+ HP mclaren would run for top speed. Of course you would have to get it off the test track and run in on bonivelle also....to make it fair :) But, I stand my first statement the huge front swept area of a supra will make it hard for it to be the top speed king. I would think the shape of an RX-7 would make it a more likely canidate for a top speed run.

I was pretty sure some japanese car tried for a 300mph run at bonneville one year...anyone know anything about this? I watched one on the discovery channel do a flip while trying to make a top speed run over 200+. The driver was fine though. Roll cages rock! :)

In these japanese series that the mclaren loses at...what kind of cars is it running against?? and what kind of mods are you allowed to do to the mclaren? suspension? can you run a gtr or a lm? I find it hard to believe it gets its ass kicked when it pretty much worked lemans for the years it ran. I am guessing adding FI to the mclaren isn't allowed because of it huge displacement advantage. I will admit i know nothing about this series you speak of, but would be interested in learning about it. I just can't read that web site...cuz it is in japanese.

I will admit i know nothing about this series you speak of, but would be interested in learning about it. I just can't read that web site...cuz it is in japanese.

when you go to the site look on the left hand side there should be a british flag if you click on it, it will convert it to english text;)


There isn't a car from the factory that runs with the McLaren F1 until the new bugatti comes out. Of course they mclaren was a tiny limited production. I would love to see how fast a 1000+ HP mclaren would run for top speed. Of course you would have to get it off the test track and run in on bonivelle also....to make it fair But, I stand my first statement the huge front swept area of a supra will make it hard for it to be the top speed king.

As far as this statement is concerned, if you think of a mclaren as being a factory car your delusional, its the equivalent of buying a fully modified supra from top secret, i mean it has all the best equipment that you can buy already on it, so you dont have to modify it, if you get my drift;). you said heavly heavly modified, what do you think a mclaren is.
i think also that alot of development went into the makeing of the mclaren, and it wouldnt be as easy as just bolting on a turbo.

wait i thought top secrets MR2 engined supra was 820hp it was featured in Super street

the issue in which i lent it to some Trans AM driving tosser who hasn't given it back o well what hte fuck can you do ? well at the moment i think i want to make him look silly or kick his ass for being such a prick

I have heard of everything from a second gen rx-7 doing 230 on the salt flats to a skyline doing 205 on a mile stretch in japan. The newest supercar is the bugatti veyron with 1000 hp and a 7 speed sequential transmission with 0-100 times that would kill ANY production car. However the thinking behind the Top Secret GT300 supra is what I would consider abstract. When you have more weight you probaly would need less downforce, a lower ground clearence would help too. But the main thing is that if they would have kept the inline 6 they could have made enough hp to make the weight difference atleast and the extra weight would help in keeping momentum when traveling at high speeds therefore requiring less force to accelerate faster. This all means that weight is somewhat good for top speed in some aspects. Do the math anytime you want if you have college level physics class.

That skyline had no dround effects, and the rx-7 had only plate style rims with some crappy tires with 50 sidewalls

Originally posted by Mid_KnightFD


As far as this statement is concerned, if you think of a mclaren as being a factory car your delusional, its the equivalent of buying a fully modified supra from top secret, i mean it has all the best equipment that you can buy already on it, so you dont have to modify it, if you get my drift;). you said heavly heavly modified, what do you think a mclaren is.
i think also that alot of development went into the makeing of the mclaren, and it wouldnt be as easy as just bolting on a turbo.

of course i think putting a turbo on a mclaren would be a horrible idea. It would ruin one of the most amazing NA engines in the world. I may be dellusional, but I'm right.!! :) The raced (and won) le mans, so it was a factory car with at least 500 produced and sold.

I am sure there are modified cars that can beat the mclaren, but if I had sooo much money that spending 1 million on car, was like buying a civic for me in real life...I would take a mclaren over a supra with a 4 cyclindar engine running very high boost...any day. The Mclaren isn't just about speed...it is just an amazing machine. I would love one. For anyone interested in someone who got a little ride in one check out this link:
http://www.bmwm5.com/vbulletin/showthread.php?s=&threadid=11076&highlight=MacLaren
very cool :)

That skyline had no dround effects, and the rx-7 had only plate style rims with some crappy tires with 50 sidewalls

What are dround effects, go back the the camaro forum, i hate people that make stupid comments:finger:

The raced (and won) le mans, so it was a factory car with at least 500 produced and sold.

Ok, Ok, so it raced and won the le mans and they say its a factory car, but come on do you realy consider it a real FACTORY car, I mean for god sake the car cost a million dollars it should be considered a prototype, be real, only 500 produced how many supras and skylines are produced, those are real factory cars, and considering they got a skyline to run 350kph, that is less aero than a supra, on a public road for probaly a quarter the price thats pretty impressive wouldnt you say.

Did you check out www.jgtc.net it still gets its butt kicked allot of the time:D but i still would take one for sure;)

I also would like to point out that the japanese are all about taking a car that most people can afford to buy, not a mclaren, ie. rx7, supra, skyline, whatever else, and turning it into a car that can run with some of the fastest exotic cars ie. mclaren, lambo, whatever else, out there.
thats my argument to take a $30,000 supra or rx7 and make it run with some of the fastest cars in the world thats whats impressive, thats right i called the mclaren an exotic car not FACTORY car:D

I meant ground effects, the skyline comes stock with a full under body ground diffuser and the one that broke 205mph had 1200 hp. Besides I respectfully own an '89 7mge. If you don't know what that is then you shouldn't be here reading this.

I meant ground effects, the skyline comes stock with a full under body ground diffuser and the one that broke 205mph had 1200 hp. Besides I respectfully own an '89 7mge. If you don't know what that is then you shouldn't be here reading this.

I know what you ment, just dont make stupid comments, and yes i do know what a 7mge is, but are you actualy proud to own one:rolleyes: , just kidding, i didnt mean to dissrespect your ride. i used to have an 88 supra before some stupid ass hit me, but now im the proud new owner of an AE86, just bought it two days ago, and now its time to modify, but it will never be better than my FD thats my first love, pluse ive spent to much on it.:D

Originally posted by panozracer
When you have more weight you probaly would need less downforce, a lower ground clearence would help too. But the main thing is that if they would have kept the inline 6 they could have made enough hp to make the weight difference atleast and the extra weight would help in keeping momentum when traveling at high speeds therefore requiring less force to accelerate faster. This all means that weight is somewhat good for top speed in some aspects. Do the math anytime you want if you have college level physics class.

Uh, you are completely missing the point of the GT300's engine downsize. It wasn't done to save weight, but rather to make the car more stable. The factory JZA80 is incredibly nose heavy (well it's pretty damn obvious; just look at the car's proportions from engine compartment to cab), and Top Secret wanted to built a car with better weight distribution so that it could surpass the numbers set before with fewer safety concerns. Unfortunately, the 2.2 just can't fire up more than a 1000 hp, but you can always dig up ways to get more power--it just takes more development, but a car's natural balance must be achieved from the beginning, which is why layout must be determined before adding brute power.

I have heard of everything from a second gen rx-7 doing 230 on the salt flats to a skyline doing 205 on a mile stretch in japan. The newest supercar is the bugatti veyron with 1000 hp and a 7 speed sequential transmission with 0-100 times that would kill ANY production car. However the thinking behind the Top Secret GT300 supra is what I would consider abstract. When you have more weight you probaly would need less downforce, a lower ground clearence would help too. But the main thing is that if they would have kept the inline 6 they could have made enough hp to make the weight difference atleast and the extra weight would help in keeping momentum when traveling at high speeds therefore requiring less force to accelerate faster. This all means that weight is somewhat good for top speed in some aspects. Do the math anytime you want if you have college level physics class.

You know, stupid people really make me sick. I mean, do you really think that you're smarter than the Japanese tuners? I think that they know what the hell they're doing. Quit making stupid comments, and actually, I have all the videos with the rx7 doing 242 and all the top speed testing with the supra and skyline and rx7 on the public road. The skyline did around 230 FYI, and the rx7 did around 215. The Japanese tuners are some of the most brilliant individuals in the world in that field, so unless you're some sort of super tuner or have done anything remotely similar, stop acting like you know what you're talking about. Thank you. I won't talk to you anymore unless you can redeem your stupidity. :finger: Listen to Morpheus XIII. He has some sense.

any updates on the Top Secret and Jun Supra

Bugatti is making a v16!

Kinda like that old... cadillac.