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Max power Honda 5 speed can handle?

  #1  
Old 06-08-2013, 10:49 PM
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Default Max power Honda 5 speed can handle?

Just wondering out of curiosity, does anyone know how much power a factory Honda 5 speed can handle? My old man and I have been entertaining the idea of souping up a Honda of some variety, but we're just wondering how far you can reliably push a Honda gearbox before needing to beef it up.
 
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Old 06-09-2013, 06:38 AM
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From what I've read and remember from a few others, somewhere in the 350~400whp range and you start to have issues with a stock manaul trans. There are upgraded gears you can get to go above that.
 
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Old 06-09-2013, 08:30 AM
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I'm with poorman. About 400. The higher you go the shorter the life.
 
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Old 06-09-2013, 11:32 AM
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Thanks for the quick answers guys, that's plenty of capability for what we're looking to do.

Since we're on topic, has anyone ever used any additives in their gearbox? I ask because mine simply takes 10W-30 motor oil and there are a ton of additives made for that though I'm not sure if a gearbox would take as well to such things as an engine.
 
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Old 06-09-2013, 12:41 PM
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Personally I'm not a big fan of "additives".......ok yes I use seafoam in the gas about once a year.

For a manual trans.....if you want something other than engine oil. Either use Honda MTF or there is the Pennzoil Synchromesh.

"Rice" - have you ever run across "extralargenog" on HT? He was running close to 500 whp on a F engine in a 5th gen.
 

Last edited by poorman212; 06-09-2013 at 12:47 PM.
  #6  
Old 06-09-2013, 12:46 PM
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No I haven't heard of him. I haven't been on honda-tech in years. The transmissions for 5th gens are so cheap, who cares if you blow them up, $100 or less and you got a few more months of use!

I know there is a company that makes/made a dogbox gearbox for F and H series. Think it was in the $3,000 range if I remember correctly.
 
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