General For General 240sx/Silvia (s-chassis) discussions.

dohc vs sohc?

Old Nov 14, 2002 | 09:13 PM
  #1  
azian21485's Avatar
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dohc vs sohc?

i've heard the sohc has a wider power band and lighter flywheel which helps it keep up and sometimes even beat dohc ka's...i noe mileage and driving plays a major role but many dohc owners admit to losing to sohc several times when they hav similar mods...wat u guys think? i dunno enuff about these engines to really come to my own conclusion..
Old Nov 15, 2002 | 12:52 AM
  #2  
nismo240sxse's Avatar
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yea, ive been reading this argument on another forum, got me smiling. the argument claims that the sohc beats dohcs cause it has a lighter flywheel and a lighter engine. but i cant back it up, i havent raced anyone with my sohc as of yet.
Old Nov 17, 2002 | 06:24 AM
  #3  
Silviaspeed's Avatar
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From: Long Island, NY
I raced a SOHC owner twice, and beat him both times. I guess it depends on the driver really. Oh and by the way the race wasn't even close.

I had: Injen intake and extension. Full Greddy exhaust. UR underdrive pulley.

He had: Injen intake. Apexi' N1 exhaust (cat-back).
OBX short shifter. JWT programmed ECU.
Old Nov 17, 2002 | 07:05 AM
  #4  
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From: Dirty Jerzey
My friend has an sohc coupe... i have the dohc coupe... maybe i can get him to run it with me and we'll see what happens. I think i would spank him silly with my mods but stock vs stock... his car is really strong compared to how mine was (maybe because he has a 5spd). I know for some all motor applications if you really wanted to tune those sohc's, they whip some serious A$$! PDM has wicked cam setups for sohc, which produce way more power than any dohc cam package i've seen. I'm gonna see if i can get him to give me a run at it, ill post the results.
Old Nov 17, 2002 | 04:21 PM
  #5  
azian21485's Avatar
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Originally posted by drifties151
My friend has an sohc coupe... i have the dohc coupe... maybe i can get him to run it with me and we'll see what happens. I think i would spank him silly with my mods but stock vs stock... his car is really strong compared to how mine was (maybe because he has a 5spd). I know for some all motor applications if you really wanted to tune those sohc's, they whip some serious A$$! PDM has wicked cam setups for sohc, which produce way more power than any dohc cam package i've seen. I'm gonna see if i can get him to give me a run at it, ill post the results.
cool i'd really like to noe the results..anyways does anyone noe the differences between the sohc and dohc motors? like flywheel... compression..anyhing?
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