Limits of Stock Engine With Turbo's?

[endlessperformance]

I know not too many guys have turboed their '08's yet, but I am curious what kind of numbers people have gotten out of the stock internals on the '08's? Do you guys think 320hp is attainable?

 

[CDiPrecision]

yes, the rods are good for over 300 HP. o-ring the headgasket, put a spacer under the block to drop the CR, and let it eat..

 

[High-Gain Busa]

CDi

What about the weaker springs and valves?

 

[CDiPrecision]

I know the valves are fine(Actually alot of big turbo guys are going to SS and taking out the Ti valves, but for small boost 300 HP it may not matter).. unless ur changing the cam profile the springs are good too, but Ill check with Johnny when he gets back just to make sure.

 

[endlessperformance]

yes, the rods are good for over 300 HP. o-ring the headgasket, put a spacer under the block to drop the CR, and let it eat..

What about the pistons and the rings?

 

[firebug]

Hey AJ,

Off topic, but nice to see you here.

 

[boosted]

I would replace the valves and springs at anything over 5-6 lbs of boost.

 

[Got-Busa?]

I would replace the valves and springs at anything over 5-6 lbs of boost.

That's what I've heard from a few TURBO builders. The new 08 valves just won't handle the heat...

 

[endlessperformance]

Hey AJ,

Off topic, but nice to see you here.

Thanks! Now that I have a 'Busa I have to build up a wealth of knowledge on them....