101K Mile Motor. What should I worry about.

[tdstuart]

I have 101K miles on my 2015 mustang. Currently just have a tune, but am getting headers, ported 2018 intake, and 47lb injectors.

What should I worry about with the engine / what should I check. Currently revving the car to 7,500 but may discuss 8,000 with my tuner (because of the new manifold).

I know everyone says oil pump gears. But what should I be focused on as my motor gets older. What should I check while I have the manifold off? Should I do a new oil pump and new oil pump gears and crank sprocket? I beat the shit out of this car every time I drive it and I would like it to last lmao.

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[ice445]

I'd change the water pump and gasket if its original

 

[Rapid Red]

Maybe don't fix shit that ain't broke, inspect it yes, throw parts at & in it, not wise. 100k bottom end maybe, that starts making noise. A rebuild will find anything thing else at that time.

 

[Red65]

Dont bother about revving to 8k. The ported 18 is great for the gen2 cars, but the porting doesn't give it any more top end than a stock 18+ mani already has, just gives you more midrange meat. 18 mani runs out of steam around 7600

 

[Vert]

I'd think about the timing chains and guides with it pushing over 100k.

 

[velocity550]

PFFTT That bad boy is just getting broken in!

 

[Rapid Red]

Want 8k, need cam.

 

[tdstuart]

I wouldn't worry about it if hasn't broken yet probably won't can always get another engine from car-part.com.

The pump gears and sprocket are good idea probably a chain as well.

The hope is I catch parts wearing down before the engine shits itself

 

[tdstuart]

Dont bother about revving to 8k. The ported 18 is great for the gen2 cars, but the porting doesn't give it any more top end than a stock 18+ mani already has, just gives you more midrange meat. 18 mani runs out of steam around 7600

From what I’ve seen the porting does give more top end. And from what I’ve seen even if it starts to drop, it isn’t tanking after 7,500. Maybe I’ll put it on a dyno but I don’t see why the manifold would make me only want to run it to 7,600.

 

[tdstuart]

Want 8k, need cam.

Why would I need cams to rev to 8k?

 

[tdstuart]

Maybe don't fix shit that ain't broke, inspect it yes, throw parts at & in it, not wise. 100k bottom end maybe, that starts making noise. A rebuild will find anything thing else at that time.

Just asking for things I should be looking for. Not asking for a list of parts to throw at it.

For example should I check the cylinder walls? What are common things that fail that I should check? How do I check that my block is holding up fine. Do I have to worry about my cams, or valves, or etc.

 

[illadvised]

I have a 2015 also, and hit 100k miles in the same week that I installed a paxton supercharger. Now it has more mileage and still runs like new. I beat the crap out of my car, I treat it worse than most people treat rentals.

Everyone's right, that motor has just finished breaking in. Imo there's no reason to replace any major parts that are not broken. I see a lot of stories of aftermarket cs and oil pump gears breaking, a lot more than I hear about stock. Are you going to add boost down the road?

In my opinion, no reason to replace random OEM parts that work fine right now. Any time you touch, upgrade and replace OEM parts, there's a chance you can put it back together wrong or break a bolt etc. I'd personally just stick with regular routine maintenance like fluids/bushings etc. It is a reliable and rugged motor, anything you replace now ahead of time is just a gamble. If that part never goes bad, then it is just wasted money that could've gone towards saving up for a new short block when it's actually needed down the road. It's a high mileage daily driver, so at a certain point that motor will have to come out of the car to be rebuilt or replaced; or the vehicle will get totaled in an accident. Don't overspend when you don't have to!

Your transmission fluid needs to be delt with around 100k if I am not mistaken tho.

 

[tdstuart]

I have a 2015 also, and hit 100k miles in the same week that I installed a paxton supercharger. Now it has more mileage and still runs like new. I beat the crap out of my car, I treat it worse than most people treat rentals.

Everyone's right, that motor has just finished breaking in. Imo there's no reason to replace any major parts that are not broken. I see a lot of stories of aftermarket cs and oil pump gears breaking, a lot more than I hear about stock. Are you going to add boost down the road?

In my opinion, no reason to replace random OEM parts that work fine right now. Any time you touch, upgrade and replace OEM parts, there's a chance you can put it back together wrong or break a bolt etc. I'd personally just stick with regular routine maintenance like fluids/bushings etc. It is a reliable and rugged motor, anything you replace now ahead of time is just a gamble. If that part never goes bad, then it is just wasted money that could've gone towards saving up for a new short block when it's actually needed down the road. It's a high mileage daily driver, so at a certain point that motor will have to come out of the car to be rebuilt or replaced; or the vehicle will get totaled in an accident. Don't overspend when you don't have to!

Your transmission fluid needs to be delt with around 100k if I am not mistaken tho.

Ya I did the transmission fluid at 91k.

I’m more asking because I’m going to be taking off the intake manifold I have the chance to check out the cams, the cylinders, chains, etc. I was asking what should I be looking for to see what may be going bad. Hope is to catch bad parts before they go bad.

 

[wazslow]

Ya I did the transmission fluid at 91k.

I’m more asking because I’m going to be taking off the intake manifold I have the chance to check out the cams, the cylinders, chains, etc. I was asking what should I be looking for to see what may be going bad. Hope is to catch bad parts before they go bad.

Unless you're pulling off a lot more than necessary, you won't be able to see any of the items you mentioned. Just install the manifold with a new tune and keep driving...

 

[tdstuart]

Unless you're pulling off a lot more than necessary, you won't be able to see any of the items you mentioned. Just install the manifold with a new tune and keep driving...

Edit: I’m retarded. Wazslow is right don’t know why I started thinking of the valve covers…

I won't be able to see the cams or the timing chains LMAO.
Look at the picture attached...

With a borescope I can just pull out the spark plugs and check the cylinders...

Why be so rude when you don't know what you are talking about?

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