undersquare vs oversquare
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TECH Enthusiast
Joined: Mar 2003
Posts: 698
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From: PA
undersquare vs oversquare let's say i have a boosted engine (turbo)...
1- will adding cubes just give me loads of torque down low and nothing more? (this being what i don't want)
2- what would promote high Rpms and top end more, a stroker or Bored?
1- will adding cubes just give me loads of torque down low and nothing more? (this being what i don't want)
2- what would promote high Rpms and top end more, a stroker or Bored?
TECH Addict
Joined: Nov 2001
Posts: 2,207
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From: College Station, Tx
With a turbo the #1 factor is going to be the turbo you choose - the intake compressor wheel will pretty much fix how much air you can flow (HP potential) and the exhaust side will determine when it spools up, becomes a restriction, etc.
There is no point in worrying about minute differences is bored vs. stroked, etc. motors in this case - larger cubes should help you spool up slightly sooner - but then you could just change the a/r ratio slightly and keep the same spool up with more top end boost.
Basically the answer to the question is the turbo you choose is going to be the over-riding factor determining all of that. Everything else is secondary.
There is no point in worrying about minute differences is bored vs. stroked, etc. motors in this case - larger cubes should help you spool up slightly sooner - but then you could just change the a/r ratio slightly and keep the same spool up with more top end boost.
Basically the answer to the question is the turbo you choose is going to be the over-riding factor determining all of that. Everything else is secondary.
