Stroker / Bore thoughts?

[wazslow]

I think the only reason to sleeve these blocks is if your looking make 1000+ rwhp. If you want to make 700+ hp NA, there are we better/easier options than a Coyote.

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[tdstuart]

I think the only reason to sleeve these blocks is if your looking make 1000+ rwhp. If you want to make 700+ hp NA, there are we better/easier options than a Coyote.

What would you recommend for 700 N/A? My heart wants to build a n/a car to rev to the moon but my wallet is empty and I know it would be way easier to rebuild as cheap as possible and get the base ESS supercharge for 4.6k.

 

[wazslow]

What would you recommend for 700 N/A? My heart wants to build a n/a car to rev to the moon but my wallet is empty and I know it would be way easier to rebuild as cheap as possible and get the base ESS supercharge for 4.6k.

I love boost. See sig(I've had a ton of them. Ive been low 8's in the 1/4 15+ years ago). But if you really want to stay NA, probably a C6 Z06 corvette with the LS7 is the way yo go. If your willing to go with boost, the Coyote is awesome.

 

[tdstuart]

I love boost. See sig(I've had a ton of them. Ive been low 8's in the 1/4 15+ years ago). But if you really want to stay NA, probably a C6 Z06 corvette with the LS7 is the way yo go. If your willing to go with boost, the Coyote is awesome.

Ya c6 zo6 are one of my favorite cars but like I said I’m young and broke and dump way too much money into cars as it is. Especially with me going to college last thing I need is to get a car I can barely afford and have to work a full time job to pay it haha.

I just love the way the coyotes rev

 

[GregO]

looks like some good scoring on the side where the piston melted.

How did you melt a piston on a modern 4 stroke motor ?

 

[engineermike]

Got curious and did the math…. Assuming a constant 10000 lb of normal force on the top of the piston:

Stock 5.2 geometry generates 3240 lb of load on the cylinder wall.

5.4 stroker geometry (3.84” stroke, 5.85” rod) generates 3480 lb of load on the wall, an increase of 8% at an increase in crank torque of 4%.

For comparison, using the stock 5.2 geometry at an increase in cylinder pressure of 10% (11000 lb of force) generates 3570 lb of wall load, a linear increase of 10% over stock.

 

[olaosunt]

Got curious and did the math…. Assuming a constant 10000 lb of normal force on the top of the piston:

Stock 5.2 geometry generates 3240 lb of load on the cylinder wall.

5.4 stroker geometry (3.84” stroke, 5.85” rod) generates 3480 lb of load on the wall, an increase of 8% at an increase in crank torque of 4%.

For comparison, using the stock 5.2 geometry at an increase in cylinder pressure of 10% (11000 lb of force) generates 3570 lb of wall load, a linear increase of 10% over stock.

Does that mean 10+ 8 % increase if you add the cylinder pressure to a stroker set up ?
Asking for a friend

 

[engineermike]

Haha…yes.

 

[tdstuart]

How did you melt a piston on a modern 4 stroke motor ?

Haha idk, are they not suppose to do that

 

[GregO]

Haha idk, are they not suppose to do that

Never mind, I just now found your other thread.

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