port and polish

[Chivo450]

im in east texas looking for a good engine builder to talk to about a port and polish. kinda want to stay semi local, but not totally against sending it off. any help will b much appreciated. thnx

[yfzracer45]

RAGE in splendora TX

[Chivo450]

Thnx man

[XX700XX]

.ehsracing.com]EHS Racing Home Page ATV Air Box Quad Airbox[/url], he is in NC but does amazing work!!!!

[OSVALDO88]

MMAD is the way to go from what i heard and thats where il be sending mine

[Chivo450]

Where is mmad located

[OSVALDO88]

San diego california.its not local for you but from what iv reasearched it will be worth sending it to them

[Chivo450]

^^^this fella must think they r ok...lol. Ill have to check them out. I've seen their name on here a bunch.

[Chivo450]

I never expected to go from 45 to 60 with only porting. I just wanted the names of some known engine builders. P&P is not the only thing I have planned. I want to do wut I can and still run pump gas. I wrk too much to have to worry with buying race fuel. Obviously u r in the know on this stuff, wut would u recommend?

[rednbluerider]

Heres a graph from before and after with my porting. Mods before were

Dasa exhaust
FCI intake
CP pump gas piston
stock unbored carb

after oem valve dune port on original valve job.

http://img.photobucket.com/albums/v7...10125-1101.jpg

[manny530]

Originally Posted by mixxer

you know what would help people make up their minds on porting??

something that nobody EVER...and i mean EVER has to share...

and that would be the BEFORE and AFTER dyno graphs with porting being the ONLY change....

i have done is over and over again...from individuals ...to race teams... to engineering schools....

and lots of times i have given them a price break to cover their BEFORE dyno session...

higher compression (piston or head milling).... more radical cams....bigger carbs... oxy fuels....loud pipes...more displacement...etc...etc

all add up on the power scale....with or without porting, they all add....

in each and every single case, i have been able to develop porting that will add +10% power across the ENTIRE powerband.... no losses....only gains across the board...

i have developed and tested it for decades...and so have the people i have done work for....

if you had 50HP BEFORE.... you would have 55HP after....60 BEFORE... you would have 66 after.... with a full 10% power gain from idle to the rev limiter....

and all of that is without going up in valve size...stock size valves all around...

i know lots of shops and technically inept customers like you to think you will go from 45hp to 60 hp with only porting.... but that never has...and never will happen in our sport...no matter what they tell you....

haters gunna hate thats just how the world goes

Originally Posted by ldjbuff

Don't mind mixxer he is not a fan of MMAD. Go with whoever you can afford.

x2.......but per the new rules i will throw a site sponser out there Rossier Engineering - Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums (see terse im bein a good boy) but also along with MMAD there is OI, Kenz, Demon Ind an Venom coming from behind (sexual reference not intended but it is what it is)

[jaredp]

Thanks for the referral manny.

There are a few things to ask yourself when choosing a porter.
1 How long has this company been doing this type of porting?
2 Do they have a flowbench?
3 Will they stand behind the work they provided you?

[nvyfzfan]

mmad, oi, racers edge out of az are my top three in no order...

[nickmell]

I sent mine to r&r performance and they did a nice job on mine. Ill send you the link tho their website.

[junkie]

There are quite a few reputable porters West of the Mississippi:

KCT, Demon Ind, MMAD, OI, RE, Sparks, Hansen, etc.

[Chivo450]

Ok, gotta good list goin. Now to make some phone calls. Thnx guys