[finnishkid]

has anyone port matched the exhaust ports to the gaskets at home and is it worth the little porting. i know there are companies that you can send the heads to, but i dont wanna pay the money and was just gonna match the ports to the gaskets. any pros or cons for doing this at home.

 

[RVTMAVERICK]

Well, IMHO with this question and NO other info. about your RC51... (is it stock? What mods. do you have done, Full Headers Exhaust system, or Slip-Ons, Thorsten or Turn-One AirBoX?) it really is up to you... Are you running her on the Street, Track day machine or both, RACE only?

IF You are wanting High HP#s, Look else where, meaning another MC. IF You want a Killer MC in the corners and good all around handlin' FUN machine... look into doing forks, shock, Rims, and AirBox! :twocents

Now, again My:twocents IF you are at point working on the "heads" anyway... then sure why not... but "I" would Not just go and dive in, just to do this. As a matter of fact.. I have above mentioned mods. ++ and I have NOT messed with the heads.

I Hope this Helps,..?

Peace Jeff

 

[vanillagorilla]

Cylinder Head Porting Basics - Popular Hot Rodding Magazine

Cylinder Head Porting Mistakes - Engine Masters Magazine

Porting Cylinder Heads by Engine Masters Magazine

lots of info on there even more if you search a little the basics are there and you can def get good increase on your own with basic tools...

be careful take your time and plan your attack/technique before you do it

 

[selfinfliction]

the machinist that does all of my car work ported the heads on the bike. he did a cheap $50 job on it and said that the shape of the ports from the factory was perfect, he just smoothed it out a bit. don't get someone hogging those ports out cause you may end up losing power.

 

[Trace]

Don't get someone hogging those ports out cause you may end up losing power.

That is the truest statement ever posted on the entire Internet! :rockon

I've done a lot of heads, but I remember my first attempt on a 340 Mopar in 1973. I hogged and hogged and hogged...and had the WORST performing engine imaginable. It would begin to pull at 6500, just about the time the valves floated. Below those revs it was a dog. Now, most 60's vintage auto motors could use some headwork, because they weren't really designed for pure performance, such that even the Hemi and the Rat had lots of production and--more importantly--architecture compromises. But the RC motor was designed from day one for maximized performance across a broad range of revs and conditons. I've looked at our heads, and I'm awed by how good the OEM stuff is. Simply amazing! Yes, healthy power gains can be made on our beloved bikes, but it has to be a total system improvement and it has to be done right using known (HRC or Hord or such) mods and you need to spend money. Don't hog it!!

 

[HRCules]

Hell yeah Trace ! Brings back memories of 'misspent youth' smoothing out intake and head ports on my friend's 428SCJ in a '70 Mach 1 . He wanted to go hog wild with the grinder but I insisted on smooth and steady . I was right . Sweet engine with enough torque to pull stumps .:rockon He eventually found a Holman-Moody intake at a swap-meet and we installed that ! Surprisingly , my Boss 302 didn't need any work .