Modding pfp chamber
- Thread starter Robbie8984
- Start date
- Location
- South Florida
Looks like Christian machines his own ends.
@Big Kahuna this has not been done several times, removing the INNER chamber in PFP and run the outer and larger volumen chamber as wet pipe?
I have never seen it on the X, nor heard about it here
I did hear about it from a Aussie guy, i think he reeds here sometimes, runs a KDX with TPE 1105, said it made huge difference going from inner chamber wet, to outer chamber wet.
One of our guys in our riding group just made 2 pipes out of his, he has only testet the inner chamber, hope we soon get a review on the bigger outer chamber.
Will also get a picture of the outer chamber welded back together.
@AdzUK Did you guys test this back to back?
View attachment 342903View attachment 342902View attachment 342901View attachment 342900
Joemelia09
Rowdy Joe
- Location
- Nashville, TN
I have two pfp chambers that are cracked.
One is a triple oring HE chamber the other is a regular single oring chamber.
One is a triple oring HE chamber the other is a regular single oring chamber.
- Location
- South Florida
I didnt realize there was one with a triple oring.
soo powerband just moves up ?
Yes. If it’s exact same motor size. Sometime to point of no return. I was dealing with under 800cc motors. Not giants that pump more air
soo you did not pick up more power longer power etc etc ???
Yes more top end. Have you even seen a FPP type 8? That volume is huge compared to a B pipe. It’s still the king of Dyno HP for given 800cc superjet engine. type 9 was developed because it didn’t have the low end riders wanted. Also the tapers get screwed up a little because most manifolds don’t get cut in half and made bigger to match.
i have and you a correct, seemes like more pro freestyler goe wet pipe. With multibel injection points
This is why I like the r&d pipe, lots of injection points to use for your application. Being Somewhat of a fabricator myself, and now that tnt is scaling back handmade pipes, a custom chamber is something I'd like to try building eventually. Even out of just mild steel for starters.
- Location
- Minnesota
If anyone is interested in converting a FPP Type 8 Chamber into a Lay down (wet or dry) pipe, I have one available (chamber only) - $75.00 plus shipping.
As it has previously been mentioned, this pipe made more power on the dyno than any other pipe on the market but left a lot to be desired as far as bottom end on the sub 800cc motors that existed at the time.
Now that high compression/high timing advance 1000cc + motors are becoming more of the norm, I thought this chamber might be worth experimenting with, but reconfigured as a lay down style pipe.
My plans were to fabricate a new straight section off of the coupler to replace the 90 degree transition and to replace the stinger with an end similar to that found on the PFP.
As it sits, the chamber is ~23 in. across, so depending upon the width of your hull, it may need to be turned for clearance. This chamber will also likely eliminate just about every option for front mounted fuel tanks.
The Type 8 manifolds are the same as the PFP manifolds (aside from the water injection port that Factory pipe put in the bottom of the Type 8 manifolds).
As it has previously been mentioned, this pipe made more power on the dyno than any other pipe on the market but left a lot to be desired as far as bottom end on the sub 800cc motors that existed at the time.
Now that high compression/high timing advance 1000cc + motors are becoming more of the norm, I thought this chamber might be worth experimenting with, but reconfigured as a lay down style pipe.
My plans were to fabricate a new straight section off of the coupler to replace the 90 degree transition and to replace the stinger with an end similar to that found on the PFP.
As it sits, the chamber is ~23 in. across, so depending upon the width of your hull, it may need to be turned for clearance. This chamber will also likely eliminate just about every option for front mounted fuel tanks.
The Type 8 manifolds are the same as the PFP manifolds (aside from the water injection port that Factory pipe put in the bottom of the Type 8 manifolds).
Attachments
Last edited: