Supra MKV or keep building my TT 370Z.

snoopi

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Hi, so I don't have a Supra yet but recently they have been growing on me alot. The more I look at them, the more I like. Haha

I already have a 550whp Twin Turbo 370Z which is pretty damm fast. But I am getting tired of that platform due to a few reasons.

But if I sold it and went up for a Supra, what is the maximum i can make from a stock motor and how reliable would it be for weekend driving and occasional track days?

Who has done something like the Titan Motorsport $18K USD package here? How well has it been running and is it easy to purchase and get straight into?

What number down a 1/4 mile can you expect from such a package with good street tyres, e85 fuel?

Just trying to gauge if it will be a worthwhile upgrade for me, because a used Supra is still very expensive down here in Australia. I would only buy a used one which go for around $80-90K AUD here. I would need to add about $30K AUD after I sell my well built TT Z with all the fruit. Then add an extra $20-30K AUD on the Supra for mods, wheels, lip kit.

Or, would I better off keeping my Z and spending the extra $50K AUD on building the motor and trans for more power? Overall, I feel like the B58 platform is still going to be much more efficient and reliable than the Z in terms of maximum performance, I could be wrong though?

What are your guys thoughts?
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Zupra1776

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Guys on here are making around 600hp with DP, Tune, flex fuel kit so your power goals shouldn't be too difficult. If your sick of the platform move on, you can always go back. Life is too short to drive the same car for too long.
 

gdi2290

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for what you want just get the supra. sell the z before the 400z comes out
 
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snoopi

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Guys on here are making around 600hp with DP, Tune, flex fuel kit so your power goals shouldn't be too difficult. If your sick of the platform move on, you can always go back. Life is too short to drive the same car for too long.
What sort of 1/4 mile numbers are these guys making on 600hp?
 

Ozzy8690

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What sort of 1/4 mile numbers are these guys making on 600hp?
I know downpipe e50 stock turbo cars with custom tunes run high 10s so 600+ should do mid to low 10s
 

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e50 tune/flex fuel + downpipe is about $2500 USD good for 500whp/600tq

Next step up would be Pure800/Flex fuel/Port injection. Probably $7k+. Easy 600+whp, but you'll be limited by transmission ($3500+) and axles.
 

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the decision to keep the Z or not financially is going to be up to deciding if you feel its worth it. the Supra is going to be an overall better performing car everywhere.

I like the Z, but the Supra is simply a better car. Stock turbo supra will make 500whp. Which will be faster than your 550whp Z all day. Supra has a better trans.


Trans you will need to build beyond 650-700tq if you want to use 5th and 6th gear. Not because it breaks, but because it will slip. depending on your power goal will dictate what else you need to do to the Supra or not do.
Just need to figure out what you want out of the car. our car has been over 800whp for over a year on the stock engine. you will need to address the trans before the engine on this car so long as you have a good tune.
 
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snoopi

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I know downpipe e50 stock turbo cars with custom tunes run high 10s so 600+ should do mid to low 10s
Thats not bad.

e50 tune/flex fuel + downpipe is about $2500 USD good for 500whp/600tq
Is E50 better or E85?
In my state, I don't think E50 exists. But we have a decent amount of true E85 pumps.


Next step up would be Pure800/Flex fuel/Port injection. Probably $7k+. Easy 600+whp, but you'll be limited by transmission ($3500+) and axles.
What is port injection?
And are you saying to build the Supra trans only costs $3500? If so that is not bad. Do you have any links to who builds the supra trans for more tq?
I have a 7AT, and if i build my motor, then I would have to spend atleast $10K AU building the 7sp trans on the Z.

the decision to keep the Z or not financially is going to be up to deciding if you feel its worth it. the Supra is going to be an overall better performing car everywhere.
Even though I don't know too much about the Supra, I guess I can agree with this, modern, updated german engineering.

I like the Z, but the Supra is simply a better car. Stock turbo supra will make 500whp. Which will be faster than your 550whp Z all day. Supra has a better trans.
I have a 7sp AT Z. It shifts pretty quick with a proper tune, obviously not as fast as a DCT but still very reaponsive and quick.

Trans you will need to build beyond 650-700tq if you want to use 5th and 6th gear. Not because it breaks, but because it will slip. depending on your power goal will dictate what else you need to do to the Supra or not do.
Just need to figure out what you want out of the car. our car has been over 800whp for over a year on the stock engine. you will need to address the trans before the engine on this car so long as you have a good tune.
Wow, can the stock supra trans handle as much as 650+ tq? That's impressive? Much more than the limit of the stock 7sp AT from the Z, which believe is a mere 450 tq.

As for tuner, I would probably try to get one of the best Supra Tuners in america to remote tune mine if i did get one, with Ecutek. That's what I did with my TT Z, remote Ecutek Tune by Sebastian@ SZ, and it is flawless, doesn't miss a beat and drives so smoothly on e85.

How is Titan Motorsports? Since they are making some krazi Supra numbers and builds, I would look into their Ecutek Remote Tune services.
 

Ozzy8690

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Is E50 better or E85?
In my state, I don't think E50 exists. But we have a decent amount of true E85 pumps.
Not necessarily better. E50 is just the mixture you get from running a little over half the tank of E85 and the rest 91 or 93 depending on where you live. Full E85 is not capable at max power on the stock fuel system.
 
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snoopi

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Not necessarily better. E50 is just the mixture you get from running a little over half the tank of E85 and the rest 91 or 93 depending on where you live. Full E85 is not capable at max power on the stock fuel system.
But I would definitely upgrade the entire fuel system going e85 on the Supra like I did on my TT 370Z.
 

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But I would definitely upgrade the entire fuel system going e85 on the Supra like I did on my TT 370Z.
The problem is the Supra is direct injection, and there aren't any aftermarket options for the high pressure fuel pump or injectors. Instead people have to run port injection, which is basically adding a "standard" low pressure fuel rail and injectors into the intake ports to supply the additional fuel required for full e85. So you now have 12 injectors and two fuel rails, plus the logic to control it all.
 

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Supra all day baby. Pure 800 with bolt ons and e50 guys are making 700hp, so whatever HP club you wanna be in is possible. B58 shares same block with S58, not close to the same engine but the B58 was designed with the S58 in mind. Thats One of the reasons you are seeing 600hp supras all over the internet and they aren't blowing up everywhere. As this platform continues more and more high quality product will be available for the B58, which there is already a lot, as the B58 has been a round for a hot minute now.
 
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snoopi

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The problem is the Supra is direct injection, and there aren't any aftermarket options for the high pressure fuel pump or injectors. Instead people have to run port injection, which is basically adding a "standard" low pressure fuel rail and injectors into the intake ports to supply the additional fuel required for full e85. So you now have 12 injectors and two fuel rails, plus the logic to control it all.
Ah ok
This all sounds complicated. 12 injectors, Really?

So is this titan motorsport fuel system upgrade all I would need?

https://titanmotorsports.com/products/titan-motorsports-a90-mkv-supra-fuel-system

Should any high performance mechanic who has never worked with a Supra know how to install such a fuel system?

My next question is, alot of the products including the Pure800 Turbo on the Titan Motorsports page say they are for the 2020+ Supra. So does that mean I would not be able to use them on a 2019 Supra? What is the difference?
 

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e50 tune/flex fuel + downpipe is about $2500 USD good for 500whp/600tq

Next step up would be Pure800/Flex fuel/Port injection. Probably $7k+. Easy 600+whp, but you'll be limited by transmission ($3500+) and axles.
Totally agree with this one for damn sure especially those axles. Watch guys like Adam LZ and TJ hunt and a few others launch these down the track with the stock axles and sure you might get a few good runs inā€¦.Adam had 4 I think and then they snap clean. Tends to be their major suspension weak point. If you donā€™t wanna build the trans out with Pure Drivetrain Solutions Iā€™d say transcooler upgrade, and maybe pan if they have a bigger oneā€¦still have some slippage but more fluid and better cooling should help. As far as port injection he is 1000% correct mainly due to the direct injection issue. Since BMW engine with DI they are known for carbon build up. Sure your could go meth an that will help a bit but itā€™s temp and still meth and DI limits you. Hell look at the video of the tear down Papadakis did on YT, actually melted his DI injectors so he sealed them and just did port.
The carbon build up means a tear down and the ports need to be walnuted which is a huge pain in the butt an costly!
 

Twisted Tuning

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Thats not bad.



Is E50 better or E85?
In my state, I don't think E50 exists. But we have a decent amount of true E85 pumps.




What is port injection?
And are you saying to build the Supra trans only costs $3500? If so that is not bad. Do you have any links to who builds the supra trans for more tq?
I have a 7AT, and if i build my motor, then I would have to spend atleast $10K AU building the 7sp trans on the Z.



Even though I don't know too much about the Supra, I guess I can agree with this, modern, updated german engineering.



I have a 7sp AT Z. It shifts pretty quick with a proper tune, obviously not as fast as a DCT but still very reaponsive and quick.



Wow, can the stock supra trans handle as much as 650+ tq? That's impressive? Much more than the limit of the stock 7sp AT from the Z, which believe is a mere 450 tq.

As for tuner, I would probably try to get one of the best Supra Tuners in america to remote tune mine if i did get one, with Ecutek. That's what I did with my TT Z, remote Ecutek Tune by Sebastian@ SZ, and it is flawless, doesn't miss a beat and drives so smoothly on e85.

How is Titan Motorsports? Since they are making some krazi Supra numbers and builds, I would look into their Ecutek Remote Tune services.
E50 on the stock fuel system is better than E85 on the stock fuel system because you don't need to have boost lowered until the HPFP limit.

trans builds there are a few options. Pure Drivetrain solutions and Jacks Trans. Pick whichever one fits your budget. I have a PDS trans in our car. because we needed something that would support 1200-1300whp.

600-650tq is about the average torque holding ability of the stock supra ZF8HP51 trans. Mine didnt see issue until up in the mid 700s for torque.

Feel free to reach out for anything you need for the Supra. We were tuning B58s before the supra was teased with the B58. our car was the first 800whp MKV. and we do a lot of development for these cars and etc. [email protected]


Ah ok
This all sounds complicated. 12 injectors, Really?

So is this titan motorsport fuel system upgrade all I would need?

https://titanmotorsports.com/products/titan-motorsports-a90-mkv-supra-fuel-system

Should any high performance mechanic who has never worked with a Supra know how to install such a fuel system?

My next question is, alot of the products including the Pure800 Turbo on the Titan Motorsports page say they are for the 2020+ Supra. So does that mean I would not be able to use them on a 2019 Supra? What is the difference?
2019 supra is the same as the 2020. America puts their year models for the following year model for some reason. So a 2020 in america is generally a 2019 in many other countries.

Totally agree with this one for damn sure especially those axles. Watch guys like Adam LZ and TJ hunt and a few others launch these down the track with the stock axles and sure you might get a few good runs inā€¦.Adam had 4 I think and then they snap clean. Tends to be their major suspension weak point. If you donā€™t wanna build the trans out with Pure Drivetrain Solutions Iā€™d say transcooler upgrade, and maybe pan if they have a bigger oneā€¦still have some slippage but more fluid and better cooling should help. As far as port injection he is 1000% correct mainly due to the direct injection issue. Since BMW engine with DI they are known for carbon build up. Sure your could go meth an that will help a bit but itā€™s temp and still meth and DI limits you. Hell look at the video of the tear down Papadakis did on YT, actually melted his DI injectors so he sealed them and just did port.
The carbon build up means a tear down and the ports need to be walnuted which is a huge pain in the butt an costly!
EVERY direct injection engine suffer from some form of "build up" on the intake valves. Its not a "BMW" thing. its ANY and EVERY direct injection engine. Due to not being port injection, there is no fuel to wash the valves while running. However build up is decreased drastically on the current DI engines compared to those from older years, so its not much of a concer anymore.

Papadakis didn't melt his DI injectors and go port. Papadakis melted his DI injectors after going port injection then capped them, because he didnt know that DI injectors actually are cooled by the fuel running through them.
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