New JP-1 pipe lost all top end HELP

[SuperMaxx83]

well i bought a jp-1 pipe and installed it on my ofna lx comp and now i have no top end at all just all low end and my ? is what can i do to get some top end back without loosing to much low end i am going to try to go up 1 tooth on my clutch and try that and se if it werks but i would like some suggestions and see if they werk also

 

[CorradoPsi]

you bought the wrong pipe if you want top end, should have got a JP-2

 

[Revo Rancher]

That or the 056.

 

[CorradoPsi]

do you mean 053, which is a mid range pipe, or the 086 which is a top end pipe?

 

[mx125]

i used my jp-1 pipe with my force .26 and it worked excellent, my .26 has a ported & polished carb, polished rear exhaust, mod con rod and shaft.

 

[vbgagnon]

CHange the header and you should be fine.

 

[savagefan04]

i was going to ask about the header....
which one are u using? the U shaped one that came with the pipe or another? i heard that using the more C shaped header give u better performance. I haven't tried that, so i can't speak for the truthfulness....

 

[Plaidfish]

depends on the mill you're using it for....from what I see that U shaped header isn't good for the .21 race engines but it rocks on the .26 and larger engines...also high RPM engines it seems to dog real bad...but those are things I noticed affecting bottom end not top.....try the CB and see what you get...I noticed some screamin top end when I went from a 13 to a 14t CB on a P5...

 

[SuperMaxx83]

i got what i wanted from the pipe i just lost all top end and i dont think its the header but i will try thaat and see if it werks but untill then i will try the cb thanx guys

 

[Da Hellion]

shorter header

 

[Revo Rancher]

Yeah, caught my typo Corrado. I did mean the 053 pipe. I feel that pipe gives the best alll around power, mostly mid-range, for the OFNA .26's.

I use a JP-1 pipe on my Hyper 7 8 port PCR. It helped a lot on the low end as that motor is all RPM and top end power out of the box.

Try the JP-2 or the 086 if you still want more top end, but really the .26 OFNA misses out on mid range power. Also, double check your header/pipe coupler length. Plaid probably can tell you what the best length is for the JP-1 pipe to add more top end.

 

[Plaidfish]

I wouldn't know what header to use to give it more top end other than the u shaped one it comes with....I was not liking that header on my .21 mills cause it didn't give the low end pop I was hoping to get.....I swapped the U for a standard .063 header and it makes all th elow end snap I want now....since I tried that I've been playing w/ headers and seeing what affect they have on the engines I'm playing with....from what I've seen the U shape is definately the way to go for high revving mills and larger than .21s.....for .21s w/ a lot of low end use the short bent headers.....the tuning was alot easier for me when I use the header/mill matching I described above.....

 

[Revo Rancher]

Hey, PLaid, have you ever experimented with changing the length of the header/pipe coupler?

 

[Plaidfish]

only on my T-maxxes...makes a huge difference...shorter gives some serious low end out of the 2.5 mill.......I hacked about 1/4-1/2" off the header one day and man it was jumping out of the turns like a kangaroo....

 

[SuperMaxx83]

thanx guys i will tryt he header and see if it werks for me but if not then i will do the clutch setup i said be4

 

[kyosho138]

You wont loose all of the top end by changeing a pipe.. Try chang your tune. But you should buy a pipe setted for the size of your track not based on engine. People get confused with that.

 

[spatulator]

I disagree, I originally mated a 63 pipe with my sh 2004xb. Performance was OK but something was lacking. I love a 63 pipe, I am all about low end torque but after trying a 86 pipe with the same engine I realized it was the wrong pipe for the engine. The 86 is a mid/high end pipe but matched with this engine it enhances low end grunt as well as top end. RB recommends an 86 pipe with their ws7II reguardless of track size, so I think most engines will get optimum performance from 1 specific pipe.