ridingred Posted January 14, 2013 Share Posted January 14, 2013 Ok, so I know with the HRC kits a replacement T vent comes with it, but i was wondering what size drill bit you guys are using on these, and if there is a noticeable increase in power from such a simple mod. thanks. Quote 05, 13:1 JE, 02 crf cam, full hmf, razr tt tires, rath sway bar, lowering link in the rear, triple rate rebuilds on front. Link to comment Share on other sites More sharing options...
woodwardspecialties Posted January 15, 2013 Share Posted January 15, 2013 no power increase. it just allows the crankcase pressure to vent 1 Quote Check out our website and shopping cart: Woodward Specialties The site has been completely redesigned and updated with thousands of products, more being added daily! Use discount code: 450RHQ Paypal can be sent to: Paul@woodwardspecialties.com Email me- Paul@woodwardspecialties.com Please: If you have questions, PM or email me [broken External Image]:http://img.photobucket.com/albums/v3.../woodward1.gif Link to comment Share on other sites More sharing options...
bvet4dog Posted January 15, 2013 Share Posted January 15, 2013 I can see why honda made a new T breather to go with hrc power up kit. I didnt get one... what sizes drill bit should i use? I wouldnt know how much i need to cut out, so that's why i asked on sizes on the bit. Quote 07 trx450r http://450rhq.com/data/MetaMirrorCache/cd3b5c0a9ec786930d0a92290fd034b5.jpg Link to comment Share on other sites More sharing options...
alanbmx Posted January 17, 2013 Share Posted January 17, 2013 I think I used a 3/8 reamer on mine, I read somewhere to just make the hole the same size as the largest diameter hole on the tee, if that makes sense 1 Quote http://450rhq.com/data/MetaMirrorCache/92ac89484251c63d73340458b54ac18b.jpg By alanbmx at 2012-04-16 Link to comment Share on other sites More sharing options...
ridingred Posted January 17, 2013 Author Share Posted January 17, 2013 thanks alan. I'm gonna see if a 3/8 bit goes into the biggest hole and if so i'll just drill the rest out. Quote 05, 13:1 JE, 02 crf cam, full hmf, razr tt tires, rath sway bar, lowering link in the rear, triple rate rebuilds on front. Link to comment Share on other sites More sharing options...
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