Dose's Sometimes DIY and Pay Someone Home & Boat Improvement Thread

[Kinkstaah]

On 03/07/2025 at 8:47 AM, No Crust Racing said:

Would be good in your car I reckon Johnny. Have seen reports they don't seem to love circuit use and sustained high RPM, but there's so many variables and implementations it's hard to tell fact from fiction. 

All that said, is it worth it in this car given how you feel about it? Probs not? 

Really?

I assumed the MKV Supra was almost completely bulletproof with some mods to the ZF8 to hold the power? Shift kits and tunes etc. I can't imagine it'd be much different in any other application? Would be curious to read more about it.

[Duncan]

nah, I'd heard the same, they are not doing well with heat management for track use; they are a street use only thing (sure high power, but not high power over a sustained period)

[GTSBoy]

5 minutes ago, Duncan said:

nah, I'd heard the same, they are not doing well with heat management for track use; they are a street use only thing (sure high power, but not high power over a sustained period)

I think that's true for a lot of new performance cars. Just have to watch them being lapped at the 'ring to see how many start squealing about engine or trans temp by the time they get to the climb out of Breidscheid.

[MBS206]

29 minutes ago, Duncan said:

nah, I'd heard the same, they are not doing well with heat management for track use; they are a street use only thing (sure high power, but not high power over a sustained period)

I honestly don't know any automatic that mid term is great on a race track. It seems a VERY common thing for the people running any auto, even the "good ones" to pull them out and rebuild/refresh them after a couple of rounds of racing, and even then, still gearbox issues will arise.

With all the tiny passages and components in them, and the amount of stuff that can wear, and the way they build heat by nature, they just start to eat themselves as they go.

I know one of the newer Mercs even runs a wet clutch instead of a torque converter to help this, and that's just for their street car. I'm not sure what the ZF8 uses though (TC or wet clutch)

[Dose Pipe Sutututu]

12 hours ago, Murray_Calavera said:

But then the thought process goes, if our shit boxes are selling for $35,000ish and M240i's are now dropping into the $35,000ish range.... do I wave a magic wand and turn the shit box into a M240i? Then I get the ZF for free and it comes with a free B58 and a modern container to put them all in. 

M4 F80 non LCI are going around the $40K mark too!

 

[Kinkstaah]

Well then. Forget ZF8, return to BMW DCT swap.

[GTSBoy]

3 minutes ago, Kinkstaah said:

Well then. Forget ZF8, return to BMW DCT swap.

Sounds like someone has found my hymn sheet.

[MBS206]

27 minutes ago, Dose Pipe Sutututu said:

M4 F80 non LCI are going around the $40K mark too!

 

$40k and the indicators don't even work!

 

16 minutes ago, Kinkstaah said:

Well then. Forget ZF8, return to BMW DCT swap.

I'm very much wanting something like DCT for a daily, but with a clutch pedal for takeoffs. As it's pretty darn hard for an ECU to know what I'm wanting in a take off with bugger all variation in throttle input. 

I'd also for the most part be wanting it purely flappy paddle. Or a fully programmable controller I could teach what I want later on.

And for race car stuff, I can dream of a sequential. But I don't live in that financial world. 😛

14 minutes ago, GTSBoy said:

Sounds like someone has found my hymn sheet.

DCT with NZ V12...

Now are we putting something like an attessa drive line in too, or sticking RWD, or do you have some other sorts of thoughts on the driven wheel combo you want?

[soviet_merlin]

13 hours ago, Murray_Calavera said:

Would feel very strange not having the shit box around though after all the time I've dumped into it.... but the thought is getting more tempting with each day.

The problem as I see it is that it would be easy to go from shitbox to a BMW, but hard to go back if you don't like it. Because all the shitboxes have had 25 years of messing around, and you'd lose all the work put into the previous one.

Whenever I think about this, I want to buy a car to see if I actually like it. And not sell the shitbox until I make up my mind. But I don't have the money, so staying with the shitbox it is 🤷‍♂️

[Kinkstaah]

Rent one. I drove a M4 Comp DCT and it was the most un-inspiring thing I've ever driven. Annoyingly, I still seem to want one/think M cars are 'cool'? Badge Engineering/Marketting is a big thing.

It may be because a M car that has been modded to be rougher/trackier could end up being in a sweet spot of 'actually engaging' as opposed to taking a normally fun car and making it too rough to daily. There's something about a M4 with a half cage and carbon door cards and M colored straps etc that is appealing for reasons I don't quite understand.

But from driving one, it was awful. Definitely try properly before you can't go back.

[GTSBoy]

22 minutes ago, MBS206 said:

Now are we putting something like an attessa drive line in too, or sticking RWD, or do you have some other sorts of thoughts on the driven wheel combo you want?

Por que no los dos?

17 minutes ago, soviet_merlin said:

but hard to go back if you don't like it. Because all the shitboxes have had 25 years of messing around, and you'd lose all the work put into the previous one.

The very definition of the sunk cost fallacy. But one that I am perfectly happy to live with.

 

[Kinkstaah]

I recently calculated how much I've spent in paint and bodypart bits.

All for currently 0 performance improvement. If I never did the heads or paint I would have been able to just buy one of the M4's and have 10k in change.

That's how un-fun M4's are 

[Murray_Calavera]

21 minutes ago, Kinkstaah said:

Rent one.

Good idea. 

It's been a long time since I've driven anything modern-ish/sporty-ish thing. Last thing I drove was a Kia Stinger GT and I thought it was rubbish =/

[MBS206]

1 hour ago, Murray_Calavera said:

Good idea. 

It's been a long time since I've driven anything modern-ish/sporty-ish thing. Last thing I drove was a Kia Stinger GT and I thought it was rubbish =/

Ha ha ha! You'll hate most cars, especially as a daily with all their beeping and booping and trying to constantly adjust everything because "we're smart, and we think we can work out what you want" except they don't understand, when previously you opened the throttle to 60% and it was fun and quick and gave plenty of power, just because you've driven sedately for the last 2 weeks, doesn't mean you want less performance, or you don't want the gearbox to go back a gear like it did last time you were at 60% throttle!

Even the EV Kona I had did this sort of bullshit, and that's even if you last drove it hard in sports mode, and then pandered it in eco, then put it back in sports mode for the blat, it would be really soft in sport mode for the first few heavy hits of the throttle, and then it would really start to crisp the throttle up. It made it stupidly frustrating when daily driving it!

Plus all the new electronic steering systems that are so delayed, and I haven't found a single production vehicle with electronic throttle I've been satisfied with, all because the ECU gets to choose how much throttle you're really getting and that means, there is going to be delays.

[Duncan]

Yeah, but the good news is that can all be tuned out...the V37 has excellent throttle response now, and with the tiny factory turbos is pretty quick without lag

[Duncan]

Not electric car good of course, it's still just a crappy old ICE

[GTSBoy]

No ABS, no TCS, no airbags, no cruise control, no lane departure assist, no emergency brake assist, no orange lights in the mirrors (continuously annoying me in multi-lane traffic), no stupid rear view camera.

I am the one responsible for where my car goes and how it does it.

[niZmO_Man]

Nothing beats the mechanical feel of the old 1990's Japanese sports cars though.

At least that's what I think when I drive my crapbox once a quarter.

[Dose Pipe Sutututu]

17 hours ago, GTSBoy said:

No ABS, no TCS, no airbags, no cruise control, no lane departure assist, no emergency brake assist

I love all these features, has saved me running over numerous dogs, humans on phones jay walking and changing lanes into a Ferrari that literally was so low I missed in my side mirrors.

 

[MBS206]

19 hours ago, Duncan said:

Yeah, but the good news is that can all be tuned out...the V37 has excellent throttle response now, and with the tiny factory turbos is pretty quick without lag

Even in cars with factory ECU, but tuned like yours, I can sense/pickup the delay still.

It's small, but I find it's still there. And it changes the throttle feel too, especially on that first little bit of pickup from just touching the throttle, to getting it to crack open, at least on a mechanical pedal you can feel that tiny bit of slack you're about to take up, and then know immediately you're now in the point of throttle opening.

I know many people don't notice or feel it, but 100% my brain can perceive that minor delay. And it's there, we'd actually be able to measure it too! It's still small, but just something I personally dislike.

 

For driving on the road in the daily, unlike GTS, I'm happy to keep ABS, and traction control. Most stability control systems though can go EAD. I find they're only good if your immediate instinct isn't to try and catch the loss of stability, or worse, when it gets over zealous and you werent actually unstable, but now it kicking in has become dangerous!