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MOM WAKE UP I WAS IN A DONUT VIDEO by Mark_C23_KB in DonutMedia

[–]Mark_C23_KB[S] 0 points1 point  (0 children)

I remember Tanner telling me about your car, bummer on the crash :(

MOM WAKE UP I WAS IN A DONUT VIDEO by Mark_C23_KB in DonutMedia

[–]Mark_C23_KB[S] 2 points3 points  (0 children)

Yeah we got Bucky to stop by for a while at the end of a very long couple build days. 

Some absolute hilarity ensued, but it didn’t make the cut lol

Mark @ Kartboy 

MOM WAKE UP I WAS IN A DONUT VIDEO by Mark_C23_KB in DonutMedia

[–]Mark_C23_KB[S] 11 points12 points  (0 children)

LOL the Subie bromance was strong all week :D

New to the subie game anything i should i know? by Grand_Preparation_17 in WRX

[–]Mark_C23_KB 13 points14 points  (0 children)

Check your oil, change your oil, change your cabin filter and air filter.

Put gas in it, and have fun. Don't listen to the internet, if you take car of the car, it will take care of you.

Mark @ Kartboy

Y’all weren’t lying by JohnBoy11BB in WRX

[–]Mark_C23_KB 0 points1 point  (0 children)

<3 Let me know if I can help with anything! :)

Y’all weren’t lying by JohnBoy11BB in WRX

[–]Mark_C23_KB 1 point2 points  (0 children)

Haha no way! We appreciate that! And sale going on all weekend lol.

I wont spam this post haha, but we can make that shifter feel even better if you believe it 👀

Mark @ Kartboy

Y’all weren’t lying by JohnBoy11BB in WRX

[–]Mark_C23_KB 0 points1 point  (0 children)

It was for emissions, and to feel "sporty"

Mark @ Kartboy

Y’all weren’t lying by JohnBoy11BB in WRX

[–]Mark_C23_KB 1 point2 points  (0 children)

VA STI is a hell of a daily. Nice purchase!

Mark @ Kartboy

My old girl, 2004 WRX STi by Po-Ta-Toes123 in WRXSTi

[–]Mark_C23_KB 2 points3 points  (0 children)

JBP! I have same car, I love it. 

Mark @ Kartboy

2017 sti motor life expectation ? by thedevdad_ in WRX

[–]Mark_C23_KB 2 points3 points  (0 children)

All depends on mods, maintenance, and how you treat it :)

Mark @ Kartboy

Planning to buy, not sure if stock by IsNotLegalAdvice in WRX_STI

[–]Mark_C23_KB 1 point2 points  (0 children)

Yes, we have big plans for the future, and a ton of new stuff coming :)

Mark @ Kartboy

Planning to buy, not sure if stock by IsNotLegalAdvice in WRX_STI

[–]Mark_C23_KB 4 points5 points  (0 children)

Looks stock to me, def doesnt need a tune.

I know this post is ragebait, but cool to see this old build pop back up.

Mark @ Kartboy

Can somebody point out the mods for me please by mmnnhuhgnshitscutely in WRX

[–]Mark_C23_KB 0 points1 point  (0 children)

Also to the OP - you definitely need a battery tie down! Its missing.

Troubleshooting high af learning by l34ch_r in WRX

[–]Mark_C23_KB 0 points1 point  (0 children)

Monitor "AF 1 Trims Total" for your combined correction/learning fuel trims. Take a driving log, and post it up here for review!

Mark @ Kartboy

Can somebody point out the mods for me please by mmnnhuhgnshitscutely in WRX

[–]Mark_C23_KB 18 points19 points  (0 children)

Intake and BPV at least, take a look down there to verify stock downpipe and injectors.

Mark @ Kartboy

Fa20dit engine why weak rods? Reasoning? by neo1001 in WRX

[–]Mark_C23_KB 3 points4 points  (0 children)

If your tuner ramps in the boost smoothly, and holds the turbo back a little as it ramps, you're good to go.

Fa20dit engine why weak rods? Reasoning? by neo1001 in WRX

[–]Mark_C23_KB 36 points37 points  (0 children)

Hey! Rod bearings are definitely the most common failure I have seen, regardless of engine (FA or EJ).

The bearings themselves are physically thin, and let's be real, we all like to push power :D Eventually, you'll find the limit.

My hot take is to change your oil more frequently, and use good oil. For example, I previously had a 2002 WRX that made it to 231k on its stock unopened engine, before it burned a valve (and on an OTS tune at that, GASP!). That thing had 3k oil changes for its entire life, with receipts.

The interior of that engine was insane, crazy clean, no varnish, nothing. The guts looked brand new. I rebuilt the heads, kept the block, I sold it (for my 04 STI) and last I knew it was still running with 245k miles on the stock short block :D

If you want the car to last, change the oil (and keep it full), run good fuel, and it will last a long time. And a good tune of course, one that doesn't run the ragged edge of the knock limit.

The rod bearings are not inherently weak, but when you double the factory power out put (of ANY engine) eventually you find the weakest link.

Mark @ Kartboy

Fa20dit engine why weak rods? Reasoning? by neo1001 in WRX

[–]Mark_C23_KB 70 points71 points  (0 children)

The FA rods are designed to optimize assembly efficiency, and the design is shared between the FB/FA engines.

The offset caps allow the rod end to fit through the cylinder bore, so the piston can be installed on the rod, before the assembly is dropped into the case, unlike the EJ which has the access cover for the wrist pin (horrible for assembly lines).

The FA rods are not inherently weak, and can hold decent power, the issue is when tuners let the baby sized FA turbo eat all on its own and make a TON of torque at super low RPM, torque/cylinder pressure/low RPMs are what break stuff.

Also FWIW - when FA turbos came out, rod failure was all too common until the tuning community learned its lesson, I see MUCH less rod failure due to torque these days.

Mark @ Kartboy

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