Re: [DMCForum] Re: 400HP?

[Martin Gutkowski <martin@xxxxxxxxxxxxxx>]

The only difference in the "bolt pattern" on the crank is the two centre 
bearings are cross-bolted in addition to the main cap nuts. Did Volvo do 
a 3 litre block in the US then? This is the biggest problem with 
interchanging the blocks. There are three sizes of liner and they are 
not interchangable. I discovered that it's tough to have a smaller block 
bored out.

Actually the even fire engines are considerably simpler because the cam 
timing is the same left to right and the only change they made to 
accomodate this was to offset the pin on the right hand cam sprocket by 
15 degrees. All the crankshafts are interchangable, an the conrods are 
only larger because the crankpins on the even fire lumps need to be 
stronger due to being offset.

Personally I'd go for the Link ECU. Good value, excellent feature set, 
and fantastic range when it comes to active turbo control.

Martin

therealdmcvegas wrote:

> I believe that he used the Volvo block for a stronger bolt pattern on
> the crank, with the Eagle PRV crank, sleeves, cams, and heads installed.
>
> PRV is an awesome engine IMO. An almost univeral fit, and LOTS of
> torque. But we've just got the long end of the stick because of the
> smaller intake ports, and odd-fire timing. Changing these over is the
> biggest pain you have to contend with.
>
> John's engine is quite impressive. But if you're going to build one,
> I'd really reccomend the "MegaSquirt" system, rather than the
> Electromotive setup he used. The difference between the two is like
> $3000 versus $500-$700 depending upon what options you choose.
>
> -Robert
>

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