Why make it bigger ... ? If you're chasing hp, they already solved that with turbos. I'd concentrate on making it shatter wine glasses with amazing sound, like a 155 DTM car. Pete
Why does a dog lick it's own balls...?
You know me and my naturally-aspirated compulsion! It takes FAR MORE talent, skill, experience, engineering, cost and effort to make power - REAL power - pure engineering, normally-aspirated, raw power from an NA build. There are people out there who walk in here, or that one encounters at events (normally the younger generation, or the yuk-yuk roundy-round crowd), who will pop off with stupid kakka like "...why don't you just slap a turbo on it...? OR "...why don't you just throw an LS in it..." and I just want to kakkas in my pantalones - if you know what I mean?
First - these questions show how ignorant people can be; those types of conversions take MAJOR effort to accomplish clean and sorted - you don't slap and you don't throw anything to make it happen - it takes a-LOT of effort - so I just want to slap the taste out of the next guy's mouth that I hear say that.
Secondly, it's crude to mix and match brands in my not so humble opinion. It's like having sex with your sister - no matter how hot she is, you just don't do it. The LSxxx swap is undeniable for the cost and power gains (even the relative simplicity of it - when you consider the huge range of kits out there available to put that bloody plant in just about ANYTHING), but it's just not appropriate...
Third and last; installing a turbo straight onto a factory line-produced, sloppy tolerance, port mismatched, OEM setup, is just wrong - it's cheating. It's lazy and it's sloppy. Even if you do install forged internals first and lower the compression - you still have crappy factory ports, crappy intakes and compromised tolerances for the most part. Most guys even say it "...dude, it doesn't matter - you're forcing air through there anyway..."
What if - just an if - you could clean all of that up, get the balancing right, the port-matching - everything - make MORE power NA and THEN turbo THAT setup!? It's like I tell these guys; just take a V6 - ANY NA V6 without variable cams, without direct injection, without knock control - just take any analog NA V6 and just make 200 horsepower! Try it - it takes REAL work! Any displacement - 3.8 Buick, 4.0 Ford, GM - any of them!
We're pushing 425+ at the crank from the Busso-based 24 valvers these days and that takes REAL effort and skill. No knock control. No variable cams. No vario intakes or VANOS. No direct injection. I'm the most digital thing in that car!
And yes - we will be shattering whine glasses. I just want to see what I can gain in displacement, in dome size, in valve size, in port size, in cam profile and in higher revs and go from there! Who knows, perhaps some day, I would STILL turbo THAT setup! For now - it's all about NA and then yes - probably a 155 DTM homage build...