Questions and answers on how to change the Toyota Supra
What does BPU (TM) stands for? (BPU (TM) is a trademark of SupraStore.com)
Basic performance upgrades. These changes are: A full length three inch down pipe (with or without high-flow cats-out), 3 "(75mm) or cat-back exhaust system's largest, raised boost (18psi), and cut The thrust required eliminator (GReddy BCC) needed to drive without activating the factory fuel cut-off to get to 14-15psi. These are the changes they have to offer the best HP-to-$ $ $Report.
What does it mean when someone says BPU + (TM) +? And what is APU?
That stands for any additional power producing modifications other than the basic BPU (TM) changes. A "+" refers to Adj Cam Gears and pulleys, the second "+" refers to a fuel controller, performance, etc. For example, one with the Supra (TM) BPU changes as well as a front mount intercooler, you could BPU (TM) will be +. If you added cam gears, which would be the BPU (TM) + +, and so on. The"BPU (TM)" concept is used until it is upgraded turbo (s). Then it comes to APU, advanced performance upgrades. This designation covers almost all the changes that can be performed.
What are the first changes to the engine that should meet?
I should start by increasing the turbo boost stock to about 18psi. This is an indicator of improving quality and requires a push cut eliminator (GReddy BCC). They are at 15 PSI or so to reach with the stock downpipe in place.This is another example of 30rwhp. After these changes have been completed, would be a logical next step to install the downpipe and cat-exhaust at the same time. At this point it is at full BPU (TM).
What do the various "Free Mods" to do?
There are many different "free mods" for the Supra TT. I'm going to cover only some of them here. Those who meet in three categories, boost control, EGR disabling, and TTC or True double conversion.
Three of theboost control mods are: Bleeder-T Mod, Mod and terminal VSV Bypass Mod Any of these changes increase the levels without increasing the use of a pressure controller. But you must keep a watchful eye on your boost gauge and make sure that they are not allowing the turbo to gain too high (18psi is a safe level).
The next mods are the true double-conversion mods (or TTC). This modification disables the Sequential twin turbo operation, and causes the turbo to always run in parallel (bothat the same time). This is best to enable something in the range of half-speed (before the secondary turbo would normally not online) and provides a smoother power band, without the sudden increase in thrust caused by the transition from primary to secondary operation. However, this has greatly reduced low-end performance and increases exhaust noise levels, and therefore may not be desirable for the road. Two types of TTC mod which includes the traditional TTC mod 2 methods, wiringactuators, or installing a check valve, and the Electronic TTC mod (ETTC).
The last mod I will discuss is the EGR mod. This is the exhaust gas recirculation, which aims for emissions, and therefore this change is only for off-road. This mod is the super-heating of the cylinder number 5 and 6, which could result in burnt valves prevent.
How much power will my car on the BPU (TM)?
It varies from car to car, and the conditions andTuning. Most of the BPU (TM)-only Supra Twin Turbo, Dyno 370-410 hp to the rear wheels. This is (nothing wrong with the ECU may have learned to be deleted,) usually with moderate temperatures, a reset controller, and often a bit 'un-leaded high octane racing fuel reached. On the road, the current is reduced, especially in bad weather, but at least 90 percent of the power should be maintained.
What type of 1 / 4 mile ET and speed trap should BPU (TM)-only run?
It 'very differentDepending on the skill of the driver. And the conditions of the runway, prepared for altitude, temperature, humidity, and before the race. But most are between 12.3 to 12.9 ets with a speed of 112-119 mph trap with street tires. Times can also be prepared to fall in the 11s drag radials, a good driver and good conditions, as well as the corresponding courses.
What is a speed BPU (TM) 'd Supra TT top?
High speeds in the middle of the zone of 180 miles should be attainable hours. Once the speed limiterdisabled the fuse "TRAC" naturally.
It will be the life of my engine and transmission can be negatively with the (TM) BPU mods involved?
Yes, but not a significant amount. If your car is maintained properly and the car is treated with some respect for the components, you should keep most of the transmission's life. Which, given the fact that the Supra is by far one of the reliable and durable sports car, it will take longer than most sports cars to get good PLAN.Being the only transmission components that have significantly reduced life expectancy to see the stock clutch. There are more than likely, not much longer than 8-10k miles after BPU (TM). This is particularly true when the car is again at high speed runs on the fifth full-throttle response and 6. If your stock clutch has high mileage, or is slipping already, you need to plan a new high performance clutch. The stock turbos are subject to some 'shortenedLife (as short as you drive and maintain the machine, as well as the amount of thrust you)
What is the reliability of a 600 horsepower Supra Turbo?
Chassis, suspension and electrical components must be driven only a minor impact on the reliability Supras street. The stock 2JZ-GTE engine should hold quite well for this performance. How long depends on maintenance, and how hard you drive, and how often. But typically Supras can go for years at this power. TheSecurity of transmission, depending on whether an automatic or manual. An automatic warehouse is not much power, a built transmission will be necessary, and the reliability of it is by design and construction. 6spd manual should take quite well, as well as the rear differential and axles.
The only real problems with these low levels of reliability surrounding the actual changes that are performed. Install without deficits, exploited the components,You can also top quality, reliability of components behind the factory, such as built-in compromises that would be all that is, the more lean on the side of the final performance, as the highest reliability (Remember, we are talking about a Toyota talks to them reliability standards are exceptionally high) This fuel can system components, turbo components, and especialy electronic sorcery. Basically, a set-up that is either very well conceptualized, or how to use OE partsfar as possible without putting the burden on them would be near stock * * reliability. And coordination of components and component selection and tuning, would play an important role.
What are the limits of performance of the various components of the system (differential, gearbox, engine, etc.)?
There really is not enough to pin point bugs really a limit to the various components of the transmission. The engine may fail to levels of network performance when running dangerously lean. Butif she is well tuned, the internal engine (pistons, connecting rods, crank, head gasket, etc.) 700rwhp reliably. But of course entitled to these benefits, if the engine is established and developed, it is literally going to wait for a bomb, but that would be equally true with an engine built. Some owners have pushed them inside the warehouse to the limit and have well exceeded 800rwhp, and also close to 900rwhp. I still can not understand how an oversized motor has made the bean counters at ToyotaCorporate.
6-speed Getrag is ridiculously strong for an OE transmission. Her will is strong limit of the driving technique, such as starting to be affected, and if the change of power is not being used. Even driven hard, the Getrag should hold reasonably well with 700RWHP. If they treat him with some respect, should be able to handle around 800RWHP or more, although great attention and respect must be practiced at these levels.
Differential, rear axle, CV joint and drive shaftFailures are very rare. So I do not have much information on the limits of error. On street tires, it would be almost impossible to break one of these components in any way. The tires would spin before the drive would come in this kind of pressure. The tires seem like a kind of switch. If you run drag slicks, this is not true, of course, but be yourself and 9 to 10 seconds of the situation.
Will be handling, interior noise levels andLow-end performance may be negatively with the (TM) BPU mods involved?
The performance is not affected. Internal noise depends on the exhaust system you choose. Some of it will be much stronger, some actually makes it more comfortable. But most are just a bit 'stronger than the original. But the additional DBs are combined with a much sweeter exhaust note, so it's definitely worth it. And the inside of the Supra is pretty quiet anyway, so on the road, it is very livable. As for the low-endPower goes out, the gargoyle significantly reduce turbo lag. So low-end power and response time is much better than the original.
Emissions will be adversely affected by (TM) BPU mods involved?
As long as a high flow cat is used, emissions should not be done, and you must still pass the visual inspection. If you run without catalytic converter, you do so at your own risk, and would not have happened, or visual inspection of emissions.
Feed to be negative for the BPU (TM) is affectedmods?
If driven calmly, as in the gas light, mileage should not be significantly affected. Mileage will be significantly reduced while, but if you are "strong", means more power, more burned fuel I am afraid to drive.
If I were an "aspiration" (Open Element Filter)?
The answer is a bit 'as a yes and no. The filter unit of reserves is a throttle valve opening element and a contribution to increase the flow potential. However, also draw in more hot air from the engine compartment, whichcan adversely affect performance. My advice is, or the stock filter box, or install a cold air induction box, like the Air Max One big advantage is the filter element is open, allowing them to easily listen to the main valve and bypass turbo.
What about the stock intercooler?
The stock intercooler has a decent job up to 17psi on stock turbo, then you would probably notice a significant increase, especially at higher temperatures, with a beautiful front mountingIntercooler. But keep in mind some of the airflow to the radiator block, as well as decrease the response a little '.
I use rubber hoses intercooler factory with metal aftermarket pipes?
It would be nice. But it will not be of much help, either. At most you may slightly increase throttle response, but at least it will seem more beautiful.
And the power system, the stock injectors and fuel pump large enough for BPU (TM)?
Yes, this is the stock fuel systemvery safe and reliable to 450RWHP, although I would recommend a fuel pulsation damper bypass. Anything above that and I would recommend that dyno'd the car, and with a wide-band O2 sensor (not a good indicator of A / F bearings connected to O2) to fuel ratio at your high pressure setting to test . A ratio 11,5:1 Fuel would be safe.
What are the stock injectors rated?
540cc/min
The Supra would benefit from a fuel controller?
BPU (TM) 'd Supras run a bit' on the richPage up so that reports of fuel. It hurts the power. What it does is a margin of safety to engine damage from detonation unlikely. If you get a fuel controller, and adjust properly (at the counter with a precision and a high band O2 EGT (The stock O2 sensor is not accurate), then you should be able to gain a significant amount of energy. One of the most popular electronic fuel controllers is the A'PEXi S-AFC. SFC Fields is also good.
What should I use to increase myBoost pressure, a boost regulator electronic, manual or a CB?
With an increase in EBC is the safest way to improve, prevent, spiking and over-exploitation. But it really comes down to your budget. If you have an EBC can afford it, get one. If you do not go with a MBC. And keep an eye on the pressure gauge. And whatever you use, be sure to increase control, do not get carried away, I can not recommend, regularly to 18psi.
What is the best electronic boost controller?
SinceI really do not BEST. Although the A'PEXi AVC-R is a great device, it offers much more control in the wake of EBC, but also more complicated to install and adjust. The new flash drive is also nice. Most major manufacturers, the units of decent. Just to avoid fuzzy logic models, if you still have the stock sequential turbos, are "confused" by the behavior of the sequential system unnatural.
When installing my EBC, I close, is the turboWastegates?
The Primary Turbo is the only one with a wastegate. When in full twin turbo mode, the thrust of the two primary turbo turbo wastegate is controlled by. So, just connect to the primary.
Some people say that I have my ECU with a reprogrammed to replace, rather than a boost controller. I?
Reprogrammed ECUs for the Supra TT are VERY $ $ $. You are in the range of $ 1,200. And they have shown that a significant increase in benefits orSecurity of BPU (TM)-level cars. They are on display on vehicles with upgraded Turbo (s). Just be sure to buy your ECU, or have it inspected by a reputable who knows what they do, rescheduled. And they have on your particular car (Driving habits and mod). And I would also recommend a look at the AEM system programmable.
What is a safe boost pressure of BPU (TM)?
The general consensus is 17-18psi. Some people have a higher value, but I can not recommend itnot have the money for a turbo replacement / upgrade.
That down-Pipe is recommended?
The RMM (or Rod Millen Motorsports) Cat-less complete is the most commonly used. But there are many other brands. Some down-pipes, as random DP Technology, to have legal problems, high flow catalytic converter.
If a high flow cat hurt performance?
There will be some performance impact, but not much. The exact effect on HP is not clear, but it cost probably a couple of CVmost, maybe 5-15hp at BPU (TM) power levels.
What is a down-pipe?
It is part of the exhaust system, the output of the turbocharger turbine section to the "Cat-Back" exhaust colleague. The downpipe is where are the two catalysts, as well as the O2 sensor (or sensors in OBD-II vehicles).
I have an OBD2 car. I can still install a down-pipe?
Yes, but if the SP has a catalyst and a second location for an O2 sensor, will travelYour check engine light, unless you get one of those O2 "black boxes".
What are the strongest in the exhaust?
Tanabe Racing Medallion, and HKS Hiper Titanium seem to be stronger of the two systems.
What are the quietest exhaust?
The Tanabe Hyper Medallion, suspended Tanabe G-Power Medallion and the (SP) GReddy street show seems to be the quietest. A little less than full throttle, they are stronger than the original. But at full speed seem to "wake up" abits.
What are some recommended exhaust systems?
It depends on your personal preferences. Here I want to break some of my recommendations based on some combinations of settings.
Subtle Styling / very low cost:
-Random Technology (75 mm, stainless steel full)
Subtle Styling / Low Noise / affordability:
GReddy Street Performance-(80mm)
Tanabe Super Medallion Hyper-(80mm, full stainless steel, 50-state legal)
Subtle Styling / ModerateSound Level / Moderate Cost:
ATR (75mm, full stainless steel)
Tasteful Styling / Low-Moderate noise level / low cost:
HKS Dragger II (85mm)
Tasteful styling / low noise Moderate / Moderate Cost:
-GReddy Power Extreme (80-94 mm)
HKS super-extractors (95mm)
Aspect of good taste / sound moderate / High Cost / Super Light:
-Veilside Tear Drop Titanium (90mm, full titanium)
Taste-Wild Styling / Low Noise / moderateCost:
TRD second generation.
Wild Styling / Moderate Sound / Low Cost:
-A 'Pexi N1
HKS Hiper-(75mm)
Wild Styling / Moderate Sound Level / Moderate Cost:
-A 'Pexi GT Spec (95mm, full stainless steel)
Flash ONLY Spec (80 mm, stainless steel full)
HKS Hiper-Carbon / Titanium (75mm, CF wrapped muffler, titanium tip)
Wild Styling / High Sound Level / Moderate Cost:
Tanabe Racing Medallion-(80mm, 50 rule of law)
Wild Styling / High SoundLevel / High Cost / High Flow:
HKS Hiper Titanium-(104 mm, titanium muffler)
What is the cheapest route to replacing the DP and Cat-Back?
You have a custom exhaust shop product performance to produce a full 3 "exhaust system (turbo-to-toe.) Should also be less than $ 400. The costs and then you can use the silencer and tail pipe of your choice .
Eliminator cutting fuel is recommended?
The GReddy BCC (Boost Cut Controller) is strongly recommended.
What does it mean to cut fuelEliminator do?
The controller is factory programmed to provide a cut-off when the boost pressure exceeds 14-15psi switch. This is done as a security measure to prevent the controller sees on the promotion. The Fuel Cut Eliminator effectively eliminates, or at least the average rises to a higher pressure. A reprogrammed ECU can also eliminate this function.
Thrust is recommended as an indicator?
Any high quality boost gauge will work fine. Accuracy is the most important feature to look for. AutometerMeters are a good value. The Japanese lessons, A'PEXi, GReddy, HKS, etc., have more features, but at a much higher price.
Where it is possible to increase the size to be installed inside?
If you want to put it in the dashboard, the two most popular are the city clock (which has a thickness of 52mm), and the air intake next to it (which has a 60mm caliber). You can also gauge a pillar pod.
What is the stock boost pressure?
11-12psi
Cam Gears are a good change forSupra TT?
Yes, have shown that a 5-15rwhp gain on a car BPU (TM) 'd available. But to extract their potential, you must have them tuned by a tuner with experience to the test. And most of the earnings power will be visible on the exhaust side. I also recommend buying cam gears, 5-pin function.
Among the hard drive (s) is a good change for the Supra TT?
Most under-crank pulleys require the removal of the factory torsion.
This is dueMKIV.com ". This is not an external (harmonic) balancer, such as the crankshaft is fully balanced, but also dampens the axial torques produced by the ignition pulse, and the radial bending moment from the belt Accessory "
In fact, this device offers is crutial separation between the equipment and engine and the motor shaft. However, the removal of this 10-15rwhp win, but they usually charge for the long term.
I need to upgrade the ignition with the upgrade toBPU (TM)?
The standard ignition system is fully capable of providing enough fire for a BPU (TM) 'self d. The standard ignition system uses 6 large coils, one for each cylinder. Thus the support system is very impressive levels of HP. You may need to switch to a colder range plug with a narrow slit (see below).
What is the candles, the BPU (TM) or higher are recommended?
Basically you want plugs similar to those actions, but a range of cold and heat a smaller space. TheNGK plugs are fitted storage BKR6EP-11 (2978), and platinum and have a .044 (1.1 mm) gap. NGK is the ideal replacement for a modified Supra would BKR7E (6097) to be. There is a range cooler (the '7 '), is non-platinum-tip (the absence of the' p ') and a smaller gap 0.0315 (lack of' -11 '). This connector is also called the NGK 6097 and they are pretty cheap. Platinum-tipped plugs are not desired for high power applications, Iridium plugs are more preferred. Unfortunately they do not seemBKR8E perhaps better than a high-HP Supras.
Another good plug to try is the Denso Iridium IK22 or IK24. These connectors may be longer than the NGKs passed over, but they are also six times more expensive. The stock replacement plug would be the IK20, IK22 is one step of the radiator, and IK24 is two steps cooler than the original. The IK22 would be good for 400rwhp ~ to ~ 600rwhp. The IK24 would probably be a good choice in the matter. Two other plugs commonly used, the NGK 3330 (BCPR7ES), thediffer significantly from the requirements of the title of 6097 NGK plugs addition, the Rapid Fire # 5 was once very popular, but are more expensive, it lasts longer, and have fallin out of favor. These two connectors are known to cause a little stumbling block 'to a minimum. Connector Supras do not live long, usually around 5000-10000 miles. Therefore, I recommend replacing them every other oil change.
What is the HKS VPC and GCC?
This is an electronic device that electronicallyphysically removes the highly restrictive mass air sensor from the intake manifold. VPC is an acronym for venous pressure converter. The HKS GCC is a device that allows further fine tuning of the VPC.
I need an after-market Blow-off?
It is not mandatory, but it's a good idea. The bypass valve factory is subject to errors, and an aftermarket BOV is probably make a wise investment for the prevention of the line turbo compressor surge. It also sounds cool. It should be noted, however,if you still have the factory mass airflow sensor, an exhaust valve that is discharged to the atmosphere due to tripping of rounds.
I nitrous oxide on the Supra TT, even though I already BPU (TM) power levels?
Yes Most people run 50-75 shot wet manifold systems. If you want a value higher than this, you might consider a well-designed direct port system. I so much as a shot-200 was one of these systems, and saw an improved fuelwould be an absolute must.
450 hp is not enough, what can I do?
Ah, the possibilities are basically limited only by your imagination and your wallet. They know what they say, speed costs money, how fast you want to go?
The real power is in single and twin-turbo upgrade, and the possibilities are endless. You can build an engine that puts out 450 rwhp mild increase throughout the day with immediate response or a 1000 + rwhp monster.
Unfortunately, things always startdifficult for the simple BPU (TM) changes. The change is more than "Arrow Rain, gain 50hp". As things stand tuning, parts selection and adaptation of combinations of parts much more important. However, this is the case with all the high HP car. In fact, even at exceptionally high levels of performance the Supra TT is even easier to power more than any other sports car to be extracted. But it should be borne in mind that it is not easy to be like (TM) BPU bolt-on.
If youI just want something that annoying Viper GTS is toast. Then focus on a slope that every single turbo upgrade (T04S04, T60-1, SP57-SP61). Along with this, you should have a front mount intercooler, a fuel controller, fuel pulsation damper bypass and measure EGT. This is assuming you have all the BPU (TM) mods done, the more BOV, EBC, Cam Gears. With the development and some other things that you should be able to 450-500 rwhp (490-580 crank HP) numbers, while dragging on a stock fuel system (assuming it is in largeCondition). This would be a total investment of about $ 6,700 - $ 11,500 in engine / electronic components (including lessons on the right). If you already have (TM) BPU mods or FMIC, etc., spend less. The difference in price reflects the cost of replacing parts of the higher end and the addition of an HKS VPC restrictive stock MAF.
The next step would be a power supply system fully updated and camshafts would be advisable to electronics, and other(Engine management programs such as the AEM, or VPC / GCC / ECU combo, etc..) This would allow much larger turbo and injectors result. You can do more than 700RWHP on the field without replacing the internal engine parts with strong, even for those benefits if they are properly calibrated and maintained, you should have a fair amount of reliability, but the inside of the stock market, as some People continue to have the shadows 800RWHP level while running real estate fund with their endsSupras. If you choose to go ahead and build the bottom, the sky is the limit as to the power goes. So make sure you perform a partial selection, installation and development of competent and experienced. While this should apply to any modification level.
Should I have a turbo timer?
Absolutely. Unless you do not mind sitting in the car while it is idle every time you turn off the car. A turbo timer keeps the engine running for a presetTime when you turn on the engine. This allows you to remove keys and lock the machine and not have to worry, we will be off by himself. This is important for the life of the turbo. If the turbos are not given time to cool down, you can overheat the oil and coking coal, blocking the flow of oil due to the turbos and damage bearings and seals kitchen.
How high is the Supra's performance through changes in ambient temperature is affected?
Very clearly, like most turbo cars,Supra Twin Turbo can be very sensitive to temperature. Especially with the stock turbo and intercooler. On a (TM) self BPU, would not be surprised to see a reduction of 10 percent among 50-60deg temperatures, and 90deg temperatures
If the friction bearings to maintain the power levels of the (TM) BPU car?
Depends on the condition and wear of the bearing of the clutch. If it is in good condition, yes, there will be the power switch, in fact quite good, although you may experience clutch slip whileincrease full-speed as high as fifth and 6. If you mean hard drive, which frequently operate at high thrust, then life will be significantly reduced by Stocker. Surprised if you see an additional 10,000 miles after BPU (TM).
Can I change my flywheel when replacing the clutch?
It is not recommended. Buying a new Toyota flywheel.
Can I use a light flywheel?
Yes, but be aware that create a lot of noise to a minimum, and can transmit more vibrations andShock expensive Getrag transmission.
Because the TRAC provide an advantage over the off switch on the center console?
Just press the "Trac Off" button only partially disabled, the system Trac. Turn off the accelerator Trac and TRAC funtion through delaying the ABS system (with only 93.5 to 96), but not in the Trac, the function of ignition timing. Remove the fuse Trac prevents both functions, as well as the 155 mph speed limiter, which workstrac. The backup can be found in the main fuse box on driver's side compartment of the motor. It should be noted that eliminating the effect of ensuring that the TRAC light to stay, but you get used to it.
Will the TRAC system to improve performance car?
NO. Trac calibrated the system was to improve traction in slippery conditions. It was calibrated with performance in mind. When the system detects a loss of traction Trac, is dramatically on the hard, cutting power;will do nothing but degrade the performance. I would not rely on the Trac system for high-speed stability, if you lose control, it would be too slow and cumbersome, and would more than likely hamper your efforts to regain control.
How can I remove the factory 155 hours mile speed limit?
Remove the fuse for the Trac system. The speed limiter works through the accelerator Trac.
What is faster than Supra TT Trac removed the fuse?
There are someDebate on this topic. There are rumors that 180 can be achieved. But by the numbers, 168-172 mph in stock form seems possible.
What is the Supra TT, the maximum theoretical speed limit? There may be more than 200 mph with enough power?
Lets find out.
The Supra TT 6-speed with the engine has a 6800rpm redline stocks, and a sixth gear ratio of .79:1, with a 3.13:1 rear axle ratio. Now we must redouble our 6 times our rear axle ratio, and we find our final report on the marchis 2.472:1. Now we share through our entire 6800rpm 2.472:1 reduction and we find our rear wheels and then turns 2751rpm to 6800 rpm of the engine.
Now we have to calculate the circumference of the wheel. The section width is 255mm rear tire, and the side wall of the ratio of 0.40, so that our walls are 102 mm. Now, to convert this to inches, divide this by 25.4, which is equal to 4.015 inches. Now multiply that by two because we have two side walls, which have a totalIn diameter, and add the wheel diameter of 17 ", and we see a total diameter of 25.031 inches. Now, to see our size, we multiply that number times pi (3.14), and we learn, the circumference is 78.59 inches, now divide that by 12 to convert to feet. And we get 6.549 meters in circumference.
Now we have to multiply the speed of rotation of the tires caused by the outer circumference of the tire, and we find that the tire is 18 016 feet per minute, divide it by 5280 feet in a mile, and wefind, we are multiplying by 3.412 miles per minute, now that the 60 minutes in an hour, and we find we are traveling 204.7 mph @ 6800rpm 6-course. If the engines redline is 7500, which is often increased due to a turbo more fluent. Then our maximum speed would be 225.8 miles hour, because, of course, a lot of power.
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