Need engineers opinion on new NSX engine

[effer]

Personnally I do believe that Honda should create from its S2K in line 4 a

4 Liter V8 @ 480 hp.

Could it be easy to do that?

I feel that they already made a big step with that S2K in line 4 and creating the V8 would "only" mean making a new block and crankshaft...

I intentionnally simplified the task but for an as competent engine maker as Honda shouldn't it be esasy for them?

Shouldn't it be less difficult than starting from nothing?

Can we also deduce from that hypothesis what would be the size of that new V8 and could it be fitted transversely?

Wouldn't mind if the new chassis will have to be wider...

Just want some interesting feedbacks...

 

[frunobulax]

reciprocating engines work on the same principle as jet engines--efficiently extracting mechanical work from a chemical process (better known as "suck-squeeze-bang-blow"). reciprocating engines depend on volumetric efficiency to make that happen, which means moving the air through the process as smoothly as possible, while extracting maximum energy from the fuel burning process.

most engine makers start with a single-cylinder prototype to establish internal engine aerodynamic performance and mechanical output, then scale it up to production configuration. variables like vibration, heat dissipation, stiffness, et c., figure into what the engine actually looks like, but internally the final configuration is pretty close to the prototype.

increasing horsepower and torque depend on increasing airflow, more air through the process, which means higher revs. higher revs means overcoming inertia, which means shorter stroke, lighter components (e.g., expensive). shorter stroke means less air movement, requiring more cylinders, more vibration, more heat, more friction.

so, it is possible to make an S2K engine into a V-8, or a V-6, or a V-12. the limitation is money and how much the customer is willing to part with.

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dave
94 black/tan

 

[Jimbo]

http://www.nsxsc.com/ubb/Forum1/HTML/001498.html

Why, yes. It could be just as easy as that.

There's many components that could be shared and the engineering and tooling effort would be much less than starting from scratch.

The improved economies of scale would also help make the S2000 less costly as well.

I would personally like to see such a V8 based on the 2.2 liter version and I'd also like to see the engine tuned for more torque and power at lower RPMs.

Something on the order of 420 HP 400 ft lbs of torque would be just fine.

-Jim

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1992 NSX Red/Blk 5 spd #0330
1991 NSX Blk/Blk Auto #3070 (Sold)
1974 Vette 454 4 spd Wht/Blk
1976 Honda Accord 5 spd, 3 door Blue/Blue
1977 Honda Accord - Custom - Under Construction
1986 Chevy Suburban
http://homepage.mac.com/jimanders/PhotoAlbum1.html

 

[4AU4LIFE]

Good call Jimbo.


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ALL NSX
92 RED/BLACK 5-SPEED