eg33 stroked to 3.7??

[porschekiller]

lunati will take the stock forged crank and customize it up to 3.82 inches for a sqare bore and 4.3L

Originally Posted by crazyhorse

From what I've seen of the EG33's engine block, the open deck design may be the limiting factor in boosting it. The cylinders in an open deck block tend to "squirm" under boost. "O" ringing it will help, but to get the numbers you're talking about, I'm not sure that'd be sufficient.

Yes stroking the EG33 would only involve the crank & rods. The $64 question is, where would you source the crank? Are you saying that the Porsche engine has the exact same bearing spacing/diameter? The thoughts of an EG37 are VERY intriguing.

[Evil One]

Is there enough room at the base of the cyls for a stroke that long... or in the crank case?
Thats close to a .87" stroke increase.


Jim

[svxistentialist]

Originally Posted by FOMOGO

OK... are we talking crank or wheel hp here?


Jim

I dunno about others Jim, but I am talking about theoretical engine output, at the crank.

There is little point in talking wheel horsepower. This will vary depending whether an auto or manual box is used.

Engine output will be what it is, based on the quality and diligence of the build.

Joe

[Evil One]

I was assuming a very worked over head.
It is hard to ballpark theoretical power numbers without airflow potential.
My highly reworked heads and cam swap flows more air than your theoretical heads and cams.


Jim

[svxistentialist]

Originally Posted by FOMOGO

I was assuming a very worked over head.
It is hard to ballpark theoretical power numbers without airflow potential.
My highly reworked heads and cam swap flows more air than your theoretical heads and cams.


Jim

Yes, agreed.

The increases in power my numbers represent are based on the OEM efficiencies of the SVX mill, as it is.

Going for bigger output than this will require getting everything right, plus improving flow dynamics.

[svxual]

Originally Posted by svxistentialist

Tom's rad has double the channels. It is thicker than standard. This necessitated the purchase of two "skinny" fans and the thermostat controller, so the cost of these items has to be added to the mix.

The SVX oem fans were too deep to fit with the new thicker rad.

Joe

could you not just fit the existing fans to the outside instead of the inside??

[sicksubie]

.87" does seem like a very large increase in stroke to me too.

[svxistentialist]

Originally Posted by svxual

could you not just fit the existing fans to the outside instead of the inside??

No. They are big. No room.