2022 Easy Power Path?

[White Shadow]

.... By "easy", I mean 0 down time, 0 stress on the rest of the drive train,....

Realistically, even a simple tune will add stress to the drivetrain. Especially on a turbo car.

I learned that the hard way with my Audi when the clutch coudn't really reliably handle the extra power from just a tune alone.

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[32bitsofGil]

Realistically, even a simple tune will add stress to the drivetrain. Especially on a turbo car.

I learned that the hard way with my Audi when the clutch coudn't really reliably handle the extra power from just a tune alone.

Well sure, any more torque than factory spec is gonna add stress, but arguably until you get to those upper 500+ trq numbers the trans is pretty strong in these cars.

Now some dudes out there putting down just north of 600 tq on stock trans, with adding clamping pressure from XHP. Not good for the trans, or clutch, but it works.

A simple OTS tune will have you shy of 500, thus likely safe enough for daily use. Doesn't mean your warranty will stick around

 

[GoldenEye]

This was on a stock Supra with just JB4??

Just using the OTS maps? Maybe 430hp

You would be advised to check Burger tuning's website for this information:
https://burgertuning.com/products/jb4-for-a90-toyota-supra

 

[32bitsofGil]

This was on a stock Supra with just JB4??

Look closely, it’s a stock z4. Starts at a higher baseline. In map 5 (e40) the same engine is seeing a +80hp gain.

 

[GoldenEye]

I saw the Z4 but I didn’t know if they had to select that for the Supra, like BimmerCode..

Look closely, it’s a stock z4. Starts at a higher baseline. In map 5 (e40) the same engine is seeing a +80hp gain.

 

[32bitsofGil]

I saw the Z4 but I didn’t know if they had to select that for the Supra, like BimmerCode..

There’s various people on this forum that have run each map on dyno, I could only find the 2020 numbers though, so I felt it was irrelevant to this thread. Same type of gains

 

[GoldenEye]

There’s various people on this forum that have run each map on dyno, I could only find the 2020 numbers though, so I felt it was irrelevant to this thread. Same type of gains

 

[32bitsofGil]

I guess now I should mention I have a used JB4 with EWG connector and bluetooth available. DM me if you're really interested.

 

[Carmelo Iverson]

I guess now I should mention I have a used JB4 with EWG connector and bluetooth available. DM me if you're really interested.

Great sale pitch ?

 

[zrk]

Thx for the info! I was wondering why everyone was playing mad scientist at the pump. Curious if it's volume limited (the volume of fluid required for corn exceeds what the injectors/fuel rail can squirt) or if it's alcohol content on the plastic and rubber. More of curiosity though, if the experts say nein then nein it is.

Alcohol content is fine on plastic and rubber, it's what the stock injectors and fuel pumps can deal with.

Anyone got a link or some info on what exactly the JB4 is actually doing? I'm not sure how JB4 can spoof the ECU in a safe and reliable way. Like it can't control the timing so is it relying on the ECU (or worse, the knock detection) to adjust to getting more air than it expects? From safety, reliability perspective -- i'm really super curious.

The JB4 is a boost controller. It tells the ECU that there is less boost in the intake manifold than there really is. The car then adjusts everything else upwards to hit the mocked targets.

Also, while i enjoy putting small mods on cars. I hate doing it at the expense of other features. So to me, traction control and cruise control are my biggest worries. For traction control, the designers are expecting the car to only have 368 lb-ft of torque, will it hold if we go to 400 or 450. The guys building race cars and drag cars will far exceed this and always turn it off. But for a DD, i love the TC. As for cruise control, will it adjust to the additional power? I can imagine if we drive up hill, car slows, cruise wants to input a small throttle adjustment... will that adjustment be bigger than normal. Worse, will the cruise control be confused and give a little throttle, let car slow, little throttle and we turn the ride into a bucking bronco.

Traction and cruise and everything will be fine, they're fine on my car, and I have a little bit more than 400-450hp/tq.

I know, alot of JB4 questions. When I purchased car I had thought someone would be able to crack the ECU. My previous car,it took a couple of years for someone to find the magic sauce. But it sounds like everyone's given up on the MkV?

thx.

No one has given up on the MKV, it's the same ECU that's in a bunch of other cars. It's just incredibly difficult to crack reliably. Femto in Russia (now Finland) can give you a full unlock, but as you know it's expensive.

Good luck!

 

[GoldenEye]

I have one and some other goodies. I’m working with @Jesse DaBears right now on a custom tune..

I guess now I should mention I have a used JB4 with EWG connector and bluetooth available. DM me if you're really interested.

 

[White Shadow]

Well sure, any more torque than factory spec is gonna add stress, but arguably until you get to those upper 500+ trq numbers the trans is pretty strong in these cars.

Now some dudes out there putting down just north of 600 tq on stock trans, with adding clamping pressure from XHP. Not good for the trans, or clutch, but it works.

A simple OTS tune will have you shy of 500, thus likely safe enough for daily use. Doesn't mean your warranty will stick around

On my car (manual transmission), the transmission is plenty strong. It's the clutch that couldn't handle the extra power. But also keep in mind that tuned AWD cars can be hard on a clutch. And actually, it was the dual mass flywheel that failed on my car. And it was a bitch to replace with an aftermarket kit, but at least it's strong enough to handle the "extra" power now.

 

[32bitsofGil]

On my car (manual transmission), the transmission is plenty strong. It's the clutch that couldn't handle the extra power. But also keep in mind that tuned AWD cars can be hard on a clutch. And actually, it was the dual mass flywheel that failed on my car. And it was a bitch to replace with an aftermarket kit, but at least it's strong enough to handle the "extra" power now.

Yeah like I mentioned above dudes on stock trans and clutch packs are upping their line presure to get more power down through their clutch packs. It's usually the weakpoint (excluding axles if you're launching from a dig).

 

[Avarela99]

What about the femto unlock for calibration OTS tunes using MHD... How much HP and Torque would that probably put down with a downpipe/intake on 93 pump? Would this be a better route than JB4 custom map 6 on 93 same mods?

 

[zrk]

Would this be a better route than JB4 custom map 6 on 93 same mods?

Yes

How much HP and Torque would that probably put down with a downpipe/intake on 93 pump?

500ish. 475-510 would be my best guess there. But it'll be a better tune.

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