port and polish

[wanta450]

what are some good places to send a 400 head out to to get a port and polish job done

ATP, they are good enough to do jeremy lawsons motor work.

http://www.allterrainperformance.com/

[hypersnyper6947]

I called ATP several times to do my jetting and they didnt call back untill i had already had it done by someone else.

[wanta450]

bump theres gotta be more

[400exrider_88]

twisted powersports in bloomington, illinois.

[katch26]

site sponsor c&d

I'm tellin goyu go with ATP. I hear so many good things from them in 4 stroke porting and they are easy to talk to. Nice people.

[hypersnyper6947]

Yes they were very nice when i actually got a hold of them, i think they were changing offices at the time. If i port and polish i will use them, they are located in apopka fl. They had good prices too.

Do u have to rejet after port and polish, also how much can you gain off just that alone.

[brian76708]

yes you have to rejet after a port and polish job

[mooseracerX]

http://moto-xperts.com/

[hypersnyper6947]

Originally posted by brian76708
yes you have to rejet after a port and polish job

Yea i figured since your flowing more air fuel etc...

Has anyone done a p&p job, with similar mods to me, if so how much of a power improvement was it? Can you really feel the power increase? Does p&p loose reliability, or do anything that can potentially hurt your engine in the long or short run, heat etc....

Im thinking of doing this for my next mod, along with ASV clutch lever(pull is so light with this) and steering stabilizer.

[wanta450]

anyone

[Honda#4]

I had C&D Racing do my port job and I must say i'm impressed at how much flow and response I get even though I dont have a 450r carb yet, the power is great and its a very smooth delivery.

I have a 416 11:1 comp with a stg 2 cam and I feel that the P&P hasnt lost any performance anywhere. Well worth every penny I think.

[hypersnyper6947]

Originally posted by Honda#4
I have a 416 11:1 comp with a stg 2 cam and I feel that the P&P hasnt lost any performance anywhere. Well worth every penny I think.

Hasnt lost any performance??

Isnt it supposed to gain some performance, can you explain this a little better? If im spending money to have someone port and polish i would expect to gain performance, so in order for it to be well worth the money i would want to be more powerful after the P&P.

[Honda#4]

Thats what I intended it to come out as,Yes it has gained alot of performance. I feel it made the best performance at 1/4 throttle to 1/2 throttle, just brauping the throttle you can feel it flows better because of how much snap there is.

You wont regret having it thats for sure.

[hypersnyper6947]

if you dont mind me asking how much is it to get that done, if you dont feel right posting $$ you can pm me.

Thanks

[Honda#4]

Its ok it was $175

[hypersnyper6947]

Thats not bad at all

[Honda#4]

Nope not at all, Colby does great work and im very pleased at what I got outta my machine. Except now I gotta buy a new clutch LOL.

[Ntensweapon]

Originally posted by Honda#4
I had C&D Racing do my port job and I must say i'm impressed at how much flow and response I get even though I dont have a 450r carb yet, the power is great and its a very smooth delivery.

I have a 416 11:1 comp with a stg 2 cam and I feel that the P&P hasnt lost any performance anywhere. Well worth every penny I think.



Get the carb Bro!! You will not be disappointed. He have similar mods in our engines. It woke my bike up big time.


On port and polish. The only time it will be a loss is when its done wrong! IMO its very important to give it to someone who knows whats going on. All the companies mentioned so far are competant.

[geezy]

$175 wow i paid$250 at tm motorsport with a 5 angle valve cut

[Honda#4]

I plan on buying a carb and other stuff soon but after I get married in 3 weeks first before I can spend any more money on the quad.

[krt400ex]

i heard that Chad502ex from this side does great work. hes in maryland i believe. he did MR Big's 450R and that thing is a beast