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Twin Turbo thread Redone: Skyline lineage & Heritage

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Old 09-26-2018, 10:53 PM
  #556  
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The following is a 2018 model year Toyota Corolla converted from economy to sport racing focus. Paying homage to the Corolla's past and present racing heritage. As you can see for yourself, extensive aftermarket racing modifications were undertaken in order to make the racing/sport conversion complete.

While the 86 Corolla is the only racing version released from the Toyota factory, in both sedan and coupe form, aftermarket tuners have made it possible for other releases of Corolla to aspire to its racing heritage as well.



Here is an originally economy purposed FF/FWD Corolla hatchback, converted to RWD/FR and built to drift spec.


Toyota has been for years now switching the Corolla from FWD TO RWD and vice versa, depending likely on the build goal. Here it is done in a snapshot on a single vehicle. My congratulations to these aftermarket developers for their work and diligence.

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Old 09-27-2018, 02:46 AM
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Full Corolla conversion discussion of mods. Very impressive. The shop that built this vehicle specializes in FWD to RWD conversions. How convenient for a proposed drift build! They are based in California.

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Old 09-27-2018, 03:09 AM
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Apparently the AE86 and GT86 Corollas are not the only racing cued projects from the Toyota factory. Apparently there has been a TE27 Corolla which participated in the rally genre and even won. In fact, Toyota's first rally win was through a Corolla.

In this video you will have a very candid and inside view of Toyota's various projects, there are actually 2 divisions inside Toyota that race develops vehicles: TMG--Toyota Motorsports and TRD---Toyota Racing Development.

​​​​​Before Group B rally racing was finally cancelled due to many deaths involved in the no holds bar horsepower, light weight, over the top suspension engineering builds, TMG was planning to release a specialized Group B MR2 outputting 600-1,000 HP!!! With Group B spec, that MR2 was going to go flying like a tin can caught in a freaking hurricane, or E5 tornado. Oh. My. God. I don't know whether to cry because thank God Group B was cancelled because that is just psychotic, or that such a raw, pure, and unforgiving racing MR2 was about to be born.


An enthusiast discussing his '73 rally winner TE27 Toyota Corolla.


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Old 09-27-2018, 08:05 PM
  #559  
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With me here talking about pure Toyota builds, the new Supra is using a chassis and engine engineered and developed by BMW. It will be utilizing the new BMW Z4's chassis base developed originally by BMW and not Toyota, a heavy departure from past Supras, the powertrain even will not be Toyota, similar to how the GT86 is using a Subaru engine instead of in house Toyota.

Why is Toyota outsourcing so many key, defining, and integral vehicle parts to other manufacturers, especially when it comes to such racing heritage based, enthusiast driven iconic cars?? Don't know what is going on over at Toyota HQ.

​​​​​Well we know what parts of the new "Z4 Supra" as I like to call it, would be non-Toyota parts, let us see exactly where Toyota actually has its own unique input into the development of this vehicle. My guess would be suspension, transmission, and specific chassis tuning like curb weight and weight distribution. And let us see how the Supra enthusiast reacts to these details as the car is finally released. Will they punish Toyota for outsouricng such key parts, will they throw a tantrum, go into denial, and then slowly accept, or will the new Z4 Supra attract a brand new crowd of fans and enthusiasts isolating the pure Toyota Supra lover to the way side. Let us see.

Chief engineer of the project has though confirmed a 6MT model, that should put a smile on the fans. Now if Infiniti will follow suit with a 6MT for the BLACK S concept as well.

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Old 09-29-2018, 07:33 AM
  #560  
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Here's more of the Nascar spec Camry built in cooperation between RK Motors and TRD, utilizing a TRD tuned Toyota V8, naturally aspirated.

I hope you can understand the significance here, Toyota Racing Development, themselves helped tune and race develop this vehicle. That is like NISMO working in conjunction, on a professional basis, with your local tuning shop to race modify and turbo boost your G37, or whichever Skyline model have you. Or Ford SVT knocking on someone's door saying they would partner with a local shop and help build their Mustang GT into a Cobra R.





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Old 09-29-2018, 11:44 AM
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Here's a more or less performance modified Camry featured on the Smoking Tire. Although the difference in performance is vast compared to a stock Camry, Mat Farah points out somethings that need improvement, ie, the need for better brakes and stickier tires. The driver has lowered the car on coil overs making the ride feel more planted and "flat," as per Farah's description.

However, the Camry has been designated as an economic family sedan after it's birth from the Celica family tree. Therefore to overcome this weight issue he should have swapped the engine with an engine capable of garnering more horsepower, like the 2JZ, which would give him a better power to weight ratio. He maybe persistent to stay 4 cylinder due to that being the vehicle's traditional powertrain. However, I am sure there are Toyota 4 bangers capable of achieving high power output. Or he simply cut weight somehow. But it is his family sedan, that would be difficult to do.


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Old 09-29-2018, 01:56 PM
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RK motorsports in partnership with TRD. RK Motorsports is based in North Carolina.


This build reminds so much of the Mazda 6/Mazda Atenza build. Both are very similar vehicles: family sedans using a 4 cylinder engine from the factory. Although the Mazda 6 Atenza family sedan has a 6 speed sport economy version as well, but so does the Camry in its XSE model, with some hints of a luxury interior in the XSE Camry.

The Atenza sedan was also retroverted from a 4 door to a 2 door similar to the TRD V8 Camry. The Mazda 6 sport modified sedan is featured in Gran Turismo Sport as a group. 3 full blown race car. An actual, similarly built Mazda 6, was also built by Mazda for racing competitions in real life, using its 2.2 L 4 cylinder turbo Skyactiv diesel engine. This Camry build is very similar to the Mazda 6 aftermarket sport conversion.
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Old 09-29-2018, 04:40 PM
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Stock Mazda 6 / Atenza sedan

Actual Atenza race car, using turbo 2.2 L 4 cyl diesel engine

GT Sport Gr. 3 Atenza race car, retro converted into coupe format from the factory stock sedan.
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Old 10-03-2018, 03:41 AM
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NOTE CORRECTION: The GT86/FRS/BRZ is not a true Corrola, ie, AE86 successor. The vehicle is actually manufactured by Subaru at their plant, therefore, the chassis and engine are both Subaru. The original Corollas, including the AE86, were pure Toyota builds, not borrowed parts and chassis bases from other manufacturers, therefore, it's difficult to call the GT86 a proper AE86 Corolla successor. I'm sorry, but it's a Subaru first, and a Toyota later.

But that doesn't mean it doesnt sell well. I see these cars everywhere, they are very popular for whatever heritage this car belongs to. Toyota may have done chassis and suspension tuning to their tastes after it was built from the Subaru factory, tuning it the way they would if Toyota themselves had released a modern rendition of the AE86. Perhaps that is why they call it the Corolla's "spiritual successor," and not it's actual successor. It is a very similar scenario for the new "Z4 Supra."

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Old 10-05-2018, 03:58 PM
  #565  
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The brand new revised concept of the V37 Skyline GT-R sport/racing edition. Although this vehicle weighs the same as the luxury/sport Red Sport variant, the new F1 KERS tech did add 400 lbs to the car, thus most body panel work, including the roof, hood, side fenders, and other parts were all converted to carbon fiber material to offset the added 400 lbs back to the cars original weight.

Even the back seats have been removed for a singular light weight option row. If and when this car releases, let's see if tuners can decrease that 3900 lb weight even further.




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Old 10-05-2018, 08:42 PM
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Q50 Skyline GT-R with relentless force induction performance. There are AMS parts on the vehicle. 503 HP and 540 TQ after modifications. This is a silver sport Q50 which had a stock 270 wHP and advertised by Infiniti as having 300 HP stock from the factory.

If you watch the video, the in-cabin shot, you can tell this guy is itching for a 6MT, he wants to bang and shift gears on a 6 speed manual, but unfortunately Infiniti is failing to offer such a transmission as of yet on these vehicles. So the closest thing to that is the tip-tronic gear shifting that he is using in the video.

However, i will suggest that fully or partially automated gearboxes do help the driver for much faster shifting, as opposed to a fully manual gear which requires clutch engagement for both up-shifting and down-shifting. In fully automated sequential gear boxes, the clutch pedal is not there, and is fully automatic, where the driver simply upshifts and downshifts via paddle shifters or the tip-tronic system that the driver in this video is using. Fully automated clutches/sequential gearboxes are used in the fastest racing builds and F1 cars, and are actually automatic transmission cars since the clutch is fully automatic and never needs to be engaged for shifting function. The driver can allow the CPU to shift for him or do it himself via paddle shifters or a tip-tronic stick.

So the slowest way to shift, is actually a fully manual gearbox, ie a 6MT, because the human is now in charge of clutch engagement, then gear change, and finally clutch disengagement quickly followed by a-as fast as you can-throttle engagement for acceleration and increasing RPMs as you try to gain speed. 6MT is not slower per say, it's just that there is alot more room for human error to occur, which would lead to faulty shifting, not engaging higher RPM's when needed or simply choosing the wrong gear for the wrong time during a race.

Automatic gearboxes eliminate probability for human error, or substantially decrease its occurrence, with respect to shifting at least. Sequential gear boxes though still allowing the driver control over which gear he prefers to be in at the moment, without needing to negotiate the synchronicity of engaging the clutch, making the directional shift, disengaging the clutch and re-engaging the throttle almost simultaneously.


6MT gearboxes would therefore be more for the completely involved driver, who wants to negotiate the communication between, clutch, gear, and acceleration; and wishes to perfect this art through practice. Because it will take practice to minimize human error through this mechanism.

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Old 10-05-2018, 11:18 PM
  #567  
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Some people are calling the Black S an Infiniti GT-R, which makes sense, since Skylines are Infiniti now since the V35 generation, so whether you call it a Skyline GT-R or Infiniti GT-R it's practically the same thing. Skylines are Infiniti, but not all Infiniti are Skyline.
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Old 10-13-2018, 08:25 PM
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Ladies and Gentlemen das ist M3 GT-R, GT2 spec. Das ist Wunderbar!!!!

I have been brushing up on my German. obviously I am very "gutth" at the language. Very multi-lingual I am.....and nope.

GT2 SPEC cars are extremely racing developed, with everything a performance focus. These cars are going to have fully auto clutches, ie no clutch, AT cars with sequential manual shifting via paddle shifters most commonly. These are represented by the Group 3 and probably Group 4 Gran Turismo Sport cars.

These cars are built for performance, built for competition, built for driving with as minimal as possible room for errors.


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Old 10-14-2018, 03:27 AM
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Old 10-14-2018, 02:05 PM
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However lets discuss the Porsche 911 series here, in terms of their transmission choices. there are 2 major performance types of 911's GT2 and GT3, named after the FIA specifications of vehicle we just discussed. And further, these GT2 and GT3 vehicles have road spec versions and motorsport/racing spec versions which compete in the GT2 and GT3 series cups. However, both road spec and racing spec versions are more or less similarly equipped, which is why Porsche uses the GT2 and GT3 designations in their road going cars as well.

The Porsche brand is a driving enthusiast dedicated manufacturer, their focus is very heavy on the enthusiast, sport racing side from what I have seen. But let's talk transmission progression in the GT2 and GT3 Porsches over the years.

EDIT: will update post ASAP.
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