opinions any1?

 

SOHC VTEC=Good for turbo
DOHC VTEC=Bad for turbo
nuff said

 

sohc vtec isn't as bad as dohc vtec, the bad thing about vtec is that you will have increased chances of 'blow-by' or whatever its called. someone else will elaborate...

 

Blowby is when there is high overlap and the boosted air and fuel pass through the combustion chamber, and the pressure is lost.

 

Its not a metter of good and bad, it a matter of what is better or worse. Your gonna see power and run some Mustangs off the road, but the question is, for how long? Like he said, an Integra LS is more likely to hold boost and not throw a bearing since it is a DOHC non vtec. But a GSR will respond better to boost, but since the higher compression piston, not to mention dohc vtec, its gonna blow a lot sooner.

 

higher compression pistons + forced induction= detonating

forget vtec if you are going with a turbo...it is just more to go wrong and **** up in the long run...

 

vtec= paying more to lower internals i know

 

this is all true with a lack of tuning. Proper fuel/igniton/air makes for a happy motor, regardless of compression. A higher compression engine is just harder to tune with the addition of forced induction. Regardless of tuning, it is easier to make power with lower compression and a turbo.

 

good topic.

but.. if you were going to build a motor with no limitations unlimited resources and such and given the motors not daily driver would you still go non-vtec for turbo, or would the vtec motor make more power on a short term timeline.

 

actually race teams run like 12:1 compression with 30 psi of boost

its all about tuning

 

and they tear down the motor after every session at the track

 

yeah, but they're not detonating

 

But the words daily driver dont exist to them.

 

daily driven is my ? lower compression is better 4 boost