What pipe should I get??????????

[chromepowder]

I am just coming to the final stages of building my first trike. Its an 86 250r with a +12 chrome swinger, marvin shaw hillshooter shock, Fully powdercoated and polished everything!!, new esr 370 engine with esr ignition hinson clutch and all the goodies and a 39mm pwk carb. My issue is what pipe to use. The guys at esr thought it was crazy to be putting an engine of that power in a trike to start off with and said that their atc5 pipe would not give the engine the full potential...Will I have to go with an out of frame pipe?? I have seen a few atc's with them and know of a few companies that make out of frame pipes. I have built this to ride in the oregon dunes as I am from canada and would want to take full advantage of the power capabilities of the engine....Thanx Ben

[wild200x]

i have a pipe made by a freind at cpi. it fits the r realy good with the 250 motor. but the pipe is a bit to large and only performs on my motor at the very top end. we both think it would work real well on a bigger bore motor. but idk if it would fit your motor? it is still brand new and looks killer but i cant use it for what i want...

[BigTBones]

my buddie had an FTZ out of frame pipe on his POLONDA ATC 250R! It seemed to work great! From the sounds of this motor I would think it would be ideal for a out of frame. I prefer In frame...Because an out of frame if you for some reason wreck than your forsure going to break, crack, or bend it! For an IN Frame i would recommend a CPI or a PAUL TURNER HIGH REV! Both Top end pipes!

[r250]

CT pipe

[NOS_350X]

Guys comon, The PTR, ESR and CT all are ment for slightly bult stockish motors they are all going to not perform that motor to the best of its capablities. OOF is going to be the only way to really pull the power right for the motor. The ESR will work with the porting the best (you got the esr cyl go with there pipe)

I have seen a esr pipe on a motor that size before it did just fine, But you dont knwo what your looseing before you go oof.

The CPI we dont really know to much about, I would say if your going Inframe go with the CPI, Or ESR, Your taking a bit more of a chance with the CPI. To really get the right power out of it go out of frame.

[chromepowder]

thank for all the info guys....who would you recommend for an out of frame then....and wild200x do you want to sell that cpi pipe?

[NOS_350X]

for the cpi pipe contact 3WheelerGod
He works for cpi and it the one that built wild200x's pipe.

[ScottZJ]

I love my PT pipe but with that much mods I think I custom job would give you more for what you need.

[chromepowder]

so who would you guys reccomend for an oof? Shearer, ftz....???

[3wheelergod]

Out of frame is the way to go for all out power. We can get 6-7 more ponies going out of frame than inframe. The inframe would be hard to build without your trike here for me to work on. OUt of frame would be quick and easy to do for you, let me know!

[Duner]

I ran the Paul Turner Hi Rev and it performed quite nicely on the 370. If your not wanting an out of frame I would highly recommand this pipe for your application. If you want the "most" out of it and dont mind the out of frame, spend the money on an out of frame. You can always change your gearing to fit your motor/pipe so dont worry about that. Who made your +12?

Also, if your wanting the most out of your combination, ditch the 39 and get a 41.5

[NOS_350X]

I ran the Paul Turner Hi Rev and it performed quite nicely on the 370. If your not wanting an out of frame I would highly recommand this pipe for your application. If you want the "most" out of it and dont mind the out of frame, spend the money on an out of frame. You can always change your gearing to fit your motor/pipe so dont worry about that. Who made your +12


That would leve me to belive, that eather would work, PTR, ESR, or CPI, They are all simular, and work extremely well with built stock ish motors. SO if the ptr worked good i would think the ESR would be jsut as good, Esr is also more known for bigbore bikes, I would think theres would react just as good if not better than the PTR.

Duner, Glad to see you chime in having acutal experience.

[Duner]

That would leve me to belive, that eather would work, PTR, ESR, or CPI, They are all simular, and work extremely well with built stock ish motors. SO if the ptr worked good i would think the ESR would be jsut as good, Esr is also more known for bigbore bikes, I would think theres would react just as good if not better than the PTR.

Duner, Glad to see you chime in having acutal experience.

Piranaha Pete has dyno tested quite a few inframe pipes on stock/big bore cylinders using LRD's dyno in the past, and he found the PT performed near the top of all testing. Now, this is just one situation, and I am not sure of the random conditions if any, just passing info along. For my combination, the PT has reached its limit, but with the 370 it worked pretty dame good. I would think your comments are right on base. The ESR pipe I believe is a little cheaper too.

btw, you should look at getting a cascade big bore silencer chromepowder if your planning on riding the Oregon dunes. The CSFX and the DM silencers are the only ones that I am aware of that have been proven to pass Oregon sound laws.

[NOS_350X]

ESR just started making new sclincers about 3 months ago, They should have no problem passing now and they are spark arrested..

[Duner]

ESR just started making new sclincers about 3 months ago, They should have no problem passing now and they are spark arrested..


This one?

http://www.eddie-sanders-racing.com/oscmax/product_info.php?cPath=1_15_64&products_id=127

Nick, Anything without a turn down I would need to see it to believe it. Have not seen one yet to pass on a big bore without a turn down. $175 bones if it does not pass. I would go with a "for sure thing"

[NOS_350X]

Yes, I though i read somewhere they where advartising, "it will pass anywhere" I could be wrong tho. Best best would be to call them.

[chromepowder]

I also have a big bore 4 stroke dirtbike taht I rode there last year...It is pretty loud...I found that the time of year we go...(end of october) there aren't many people there except on the weekends...I heard florence was more strict than horsefall and winchester but we didn't have any problems in the past(knock on wood). The only reason I wrote the esr off was cause I ot the impression from the guy at esr that #1 the 370 was too much motor for the bike and #2 because of this they have not made and atc pipe to accomodate that engine. I wanted to stick with esr cause they are the ones that built the engine....It is trx9 ported by the way....The funny thing is I dont even have the engine yet Its coming from arizona you guys may have seen it on ebay Item number: 150255119852. It was gonna be cheaper to buy this with trade of my old engine to the seller than to build a 310 330. Plus with goin with the +12 I still wanted some wheelie capabilities.

[Duner]

Are you buying just the cylinder or entire motor? If just the cylinder, who are you gonna have machine your cases? Also, ESR port work is not very good, I would recommand having it ported if you want to make good power. What crank are you going to run?

A 370 is NOT too much motor for your trike, especially if it only has 9 port work from ESR.

[chromepowder]

The guys at esr and the guy who sold it said it was a +70hp motor....does that sound about right? I thought esr was supposed to know their **** when it came to trx/atc motors??? why does their port work suck??

[Duner]

The guys at esr and the guy who sold it said it was a +70hp motor....does that sound about right? I thought esr was supposed to know their **** when it came to trx/atc motors??? why does their port work suck??


your running gas right?

[Duner]

ESR port work is nothing to write home about.

[badchevelleman66]

ESR port work is nothing to write home about.

no experience with esr's porting but nos350x's port job kicks ass

[chromepowder]

I kinda got the opinion that they were the 250r guys and know thier stuff....I guess you cant reall say a "generic" port job is better than a custom one all engines are different right.

[badchevelleman66]

I kinda got the opinion that they were the 250r guys and know thier stuff....I guess you cant reall say a "generic" port job is better than a custom one all engines are different right.


ESR is the best company as far as 250's go i believe
my porting is a hand copy of what they offer, im sure others on the board will speak of how fast my trike is of not having much done to it....... but i do go down and whoop some ass on the 330 esr built quads
but i would not use there atc5 pipe on that motor unless you really want an inframe pipe
esr or paul turner would be my choices if it were my bike
out of frame pipes would give you all your power potential but i believe they are drag only bikes and they SUCK lol jk

[225]

http://i64.photobucket.com/albums/h196/edog_02/100_4811.jpg

[chromepowder]

The reason that I am thinking oof is because I am only really going to be riding it at the oregon dunes..not in trails or rocks smashing it up...Its not my first choice but I do want to get the potential out of this engine.

[NOS_350X]

Esr's porting is verry, Umm Run of the mill, Its desingned to fit anyone. And easy to do, They do know there ****, but i hate to say YOU will never get anything from them worth a crap Neather will i or the next guy. You have to really know people, and as far as that goes They dont do much with the sprint cars, Thats where there FAST motors came from.
I have several shop cyl's from esr, But they arnt your typical cylinders, they have a TON of stuff, The cylinders i got you coudnt buy from them. Ill just say I came accrost them LOL right Eric?

[carothers]

From what I have heard, ESR's porting is hit and miss. I had them port mine, and as soon as I got it in the mail I took it to Arlen at LRD. He told me that he couldnt make it any better. Maybe mine was done on a Tuesday after some guy got back from a nooner with his girl.