The pMak26 ApexObsessed Driveway Track Car Build

[pMak26]

...I've made huge mistake

lol

[bigjae46]

As an owner with the BW exhaust and euro headers and gutted interior. It is flippin loud!

When driving it on the street I wear noise cancelling earbuds. On the track just typical earplugs.

At MSR Houston - it’s in an open area and you can hear my car the entire lap. If I miss a shift, the whole paddock will know.

In Wichita, My wife could hear my car on a highway which is 1.25 miles from my house one exit down. That’s almost 3 miles.

It’s loud!


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[eacmen]

The BW exhaust is loud with the OE manifolds. Installing headers makes it significantly louder. You're going to be one of the loudest cars at just about any event.

As an owner with the BW exhaust and euro headers and gutted interior. It is flippin loud!

When driving it on the street I wear noise cancelling earbuds. On the track just typical earplugs.

[r4dr]

Yes. Fronts are 355x32, rear is 345x28.

Let me know when you need rear rings. We've got a part number for 345x28 replacement rings, but it's not listed on the website yet.

[pMak26]

Those are some good looking rotor rings is your rear the 345x28 setup?

Yes. Fronts are 355x32, rear is 345x28.

Quick shitty sound clip after the AA headers.

[r4dr]

Those are some good looking rotor rings is your rear the 345x28 setup?

[bigjae46]

I start my NT01s at 23psi cold. If I ran slicks, I’d start closer to 20-21.


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[CrookedCommie]

Yep go out around 24 in the morning and you'll bleed down. Be careful going out below 24, don't hit any curbs for 1-2 laps until they warm up.

[pMak26]

Yeah that's where I landed as well. I only had 3 sessions but I went out session 1 at 29psi and couldn't believe how much pressure gain there was - came in at 36-38psi. So I cooked them. Dropped them down to 30psi hot. Session 2, much better, but came in at 32psi, so still too high. Dumped them down to 28psi hot and it was way better that final session. It helped that the track cooled down for the final session too. Checking pressures in the garage the next day, 20psi. So yeah, I'm going to have to start going out at 20-22psi for the first session and just do a nice warm up lap.

[CrookedCommie]

Pirellis - aim for 30 hot, try lower to 29-28.5 if the asphalt temps are up past 100F-120F.

[bigjae46]

lol normal cracks from hard, hard use. They were beyond done, past the minimum thickness point too. It was time to change them.

Headers are AA. I'm scurred it's gonna be too loud, but no turning back now.

The BW exhaust is loud with the OE manifolds. Installing headers makes it significantly louder. You're going to be one of the loudest cars at just about any event.

[pMak26]

Heat cracks? Or cracks to the edges? And Megan headers?

C'mon man...where are the details?...haha

lol normal cracks from hard, hard use. They were beyond done, past the minimum thickness point too. It was time to change them.

Headers are AA. I'm scurred it's gonna be too loud, but no turning back now.

[bigjae46]

Heat cracks? Or cracks to the edges? And Megan headers?

C'mon man...where are the details?...haha

[pMak26]

Not too much new stuff going on with the car but I have been tracking it as much as I can during this very busy summer. I noticed some cracks forming on the original brembo front rotors so I replaced them with some girodisc rings. Mounted up some pirelli DH take offs I got for cheap. The sidewall height was a little higher than stock/ideal but meh, they worked amazingly well. Dropped my time vs the AR-1s by about 3% and there is more left in them as I figured out what pressures to run and how they liked to be driven.



There is another thread floating around about these that I posted in with more detail but I installed a CarTek GT battery isolator.


And literally how the car sits right now as I wait for some exhaust studs to show up:

[pMak26]

Nice! Are you running ST43 pads?

"G-Loc" pads - R16 fronts and R10 rears right now. I'll go more aggressive on the rears for my next set though.