TRX250R.ORG
Site Sponsors => LED Performance => Topic started by: ledperformance on September 18, 2013, 07:47:30 PM
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We now have LRD TRX 250B pipes! Unchromed costs $249.95. Chrome TRX 250B pipe costs $399.95. The chromed version will be available in 3-4 weeks. Pipe includes mounting brackets and spacer. The round silencer costs $195 unspark arrested and $225 for spark arrested. The oval silencers will be available soon and will cost $149.95.
(http://i779.photobucket.com/albums/yy79/ledperformance/LRD%20TRX%20250B%20Exhaust/IMG_0157_zps90c1cf3c.jpg) (http://s779.photobucket.com/user/ledperformance/media/LRD%20TRX%20250B%20Exhaust/IMG_0157_zps90c1cf3c.jpg.html)
(http://i779.photobucket.com/albums/yy79/ledperformance/LRD%20TRX%20250B%20Exhaust/IMG_0154_zps60f4f189.jpg) (http://s779.photobucket.com/user/ledperformance/media/LRD%20TRX%20250B%20Exhaust/IMG_0154_zps60f4f189.jpg.html)
(http://i779.photobucket.com/albums/yy79/ledperformance/LRD%20TRX%20250B%20Exhaust/IMG_0145_zps777d0bc9.jpg) (http://s779.photobucket.com/user/ledperformance/media/LRD%20TRX%20250B%20Exhaust/IMG_0145_zps777d0bc9.jpg.html)
(http://i779.photobucket.com/albums/yy79/ledperformance/Honda%20TRX250R%20Exhaust%20Systems/250rmuffler_zps8eb1661c.jpg) (http://s779.photobucket.com/user/ledperformance/media/Honda%20TRX250R%20Exhaust%20Systems/250rmuffler_zps8eb1661c.jpg.html)
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Is this a good pipe for mid to top and trail riding or is your other pipe a better option
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It is great for trail riding, sand dunes, and MX. Designed primarily for ported cylinders. Gives great acceleration. I have never had anyone unhappy with that pipe.
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Arlen what's the best way to seal the 2 sections? I've always used RTV silicone. These are great all around pipes!
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My favorite sealer is 3 Bond 1211. Apply sealer to the male part of the pipe. slide the back half over the front. A berm of sealer will form as you slide the pipe together. Wipe off the excess sealer and install the adjuster bolt. If you can let the sealer set up for a few hrs it is better.
The length adjustment allows you to move the powerband up or down in rpm. Longer gives more low end or shifts the powerband down in rpm. Shorter move the rpms higher or shift the powerband up in rpm.
The pipe were designed to work with our grand national engine kit in 1996. We were running 186' to 188' of exhaust port timing and the power peak was at about 7800 rpm. We found this to give the most acceleration out of the turns, while still giving good rev out. I have to give a lot of credit to Gary Denton for never letting me forget that acceleration is more important that peak hp. We used this pipe To win XC champions ships with Barry Hawk and Bill balance from 1992-2003.
This pipe was used to win over 25 National championships. We used this pipe to help Jeremiah Jones win the last 250 National championship on a 250R in 2003.
That philosophy developed on nation MX, TT and XC race tracks, applies to the sand. Pulling paddle tires up hill in the sand requires that same type of power.
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Great thanks for the tip, Arlen! Are the 350PV pipes in process as well? Is there much difference bw. stamped pipes and hand coned?
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I think I might have just found the pipe I want for my PC2000 engine.
Because I plan on going big bore this winter (330-350cc)....will you be offering a similar pipe for the bigger bore?
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Our big bore pipe is a lot better for the 330 and bigger engine. It is more that a 250 pipe with a big stinger. Our hand coned big bore is a good deal however at $350.00 unplated. It does require a big bore silencer. We can build the oval LRD big bore silencer for $149.95 which is less than the round style which is $195.00.
We only have enough stampings to build 5 of the LRD 350D pipes. We plan to build them this winter.
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Too bad you can't dedicate some stampings for a few zilla pipes. When the LRD pipes surface they don't last long and go for top $. - J
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We have stampings for LT 500 pipes. We just need a quad to fit them so we can build fixtures.
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I run a 250b pipe and love it for trail riding. Have tried many other pipes and like this one the best. Had a 330 big bore and tried the 350 pipe and liked the 250b pipe better on that motor.
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I have 2 of the old lrd 250b pipes and I love them, one on my ct265 motor in my lsr, and one on my ct310 ported by jms performance and its on my Walsh. But I want to build a 370pv 4mil stroker motor for mx and the dunes, unless you have a better idea Arlan. I will have to call you and talk about a motor.
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Please call me. I think that combination is a great idea.
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These pipes were designed to work with our grand national engine kit in 1996. We were running 186degrees to 188degrees of exhaust port timing and the power peak was at about 7800 rpm.
Thanks Arlen for sharing what ALL Pipe manufacturers should share...the best port timings for their pipe. Why but a Pipe that wasn't designed for the application at hand! I know Port timings are only the tip of the iceberg when designing pipes....so many different factors play a part in whether it's gonna work well or not.....but it's a good Starting point!
:o)
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What's the advantages of the round silencer? Are you going to make a spark arrested oval silencer? Do you have some photos of the internals of the spark arrested round silencer? I understand if you don't want to share all the details. Thanks
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Please call me. I think that combination is a great idea.
Thanks for taking time out of your day and talking with me Arlan, and hopefully we can do a engine in the coming future. Have a good one and keep up the good work sir.
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My experience with the LRD pipe on about 3 or 4 motors is this, it is a fantastic woods pipe and i love it in everything from technical to fast open trails. Not so good for apllications wanting focus on top end. As far as bottom-mid i have been completely happy. I would not hesitate to use this pipe on a gncc R!
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We have stampings for LT 500 pipes. We just need a quad to fit them so we can build fixtures.
I'll spread the word to my zilla forum and see if anyone is nearby!
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Can you compare the LRD pipe to your LED pipe? As why should one buy the LED over the old LRD or why one should go with the LRD over the LED.
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They are very close. The LED pipe is hand coned and is the C version that I built in 1998 or 99. The C pipe is similar to the B, but adds a little more top end. We do not plan to build the LED 250C pipe except for special order untill the 250B stamping are all gone. The C was the next revision of the B pipe, but never went into production untill I built a few of then starting in 2008.
Hand cone pipes are very labor intensive to build. They generally make more power than stampings.
The LRD 350 D pipe is a very good pipe also. The newer LED 350G pipe has a bigger head pipe and a fatter center section. The muffler is different also. We use a nozzle system in the muffler to more precisely control exhaust temperature in the pipe. The Hand coned LED pipe makes more peak hp than the old 350D but not enough to justify buying it if you have a good 350 d pipe on your Quad. The LED muffler would increase the power if you added it to the D pipe.
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Arlen do u have any pics of how close the pipe us to the frame in the front where it comes around by the a arms? I mounted my steering stabalizer down there and wsnted to see if there was room with this pioe also how much is shipping I have my cash finally
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Here are some pictures of the pipe mounted in the frame. Shipping is usually around $20.
(http://i779.photobucket.com/albums/yy79/ledperformance/250%20pipe%20mount/IMG_0177_zps5c03a30b.jpg) (http://s779.photobucket.com/user/ledperformance/media/250%20pipe%20mount/IMG_0177_zps5c03a30b.jpg.html)
(http://i779.photobucket.com/albums/yy79/ledperformance/250%20pipe%20mount/IMG_0176_zpsc3b6aaa1.jpg) (http://s779.photobucket.com/user/ledperformance/media/250%20pipe%20mount/IMG_0176_zpsc3b6aaa1.jpg.html)
(http://i779.photobucket.com/albums/yy79/ledperformance/250%20pipe%20mount/IMG_0175_zps4fc77c4d.jpg) (http://s779.photobucket.com/user/ledperformance/media/250%20pipe%20mount/IMG_0175_zps4fc77c4d.jpg.html)
(http://i779.photobucket.com/albums/yy79/ledperformance/250%20pipe%20mount/IMG_0173_zps96ff42b4.jpg) (http://s779.photobucket.com/user/ledperformance/media/250%20pipe%20mount/IMG_0173_zps96ff42b4.jpg.html)
(http://i779.photobucket.com/albums/yy79/ledperformance/250%20pipe%20mount/IMG_0172_zps7171a6f9.jpg) (http://s779.photobucket.com/user/ledperformance/media/250%20pipe%20mount/IMG_0172_zps7171a6f9.jpg.html)
(http://i779.photobucket.com/albums/yy79/ledperformance/250%20pipe%20mount/IMG_0171_zps837a4634.jpg) (http://s779.photobucket.com/user/ledperformance/media/250%20pipe%20mount/IMG_0171_zps837a4634.jpg.html)
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just wondering what the price on postage to Australia would be for a full exhaust system? (regular and express) thanks
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I know ve asked a lot of questions but how dose your pipe compare to a FMF fatty.
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Because the FMF pipe starts making power later it does not accelerate as well as the the LRD/LED Exhaust. For example on dyno test done with the Niks 250 PV engine the FMF pipe made about 10 hp less at 6000 rpm. The sparks MX pipe also made about 8 hp less. At 7000 rpm the the LRD pipe leads the FMF by about 7 hp. At 7500 rpm the LRD leads by about 6 hp. Comparing peak hp the LRD made a little over 2 hp more than the FMF. The FMF reved out farther. The FMF peaked about 400 rpm later.
This test was done in 2001 on a 265 PV engine I did for Keith Little. This was when we were doing engines for the Nac's team. Because I was focused on acceleration we concentrated on the low and mid range power. As the season progressed we increased the top end power and rev out so the engine would rev and peak at a higher rpm when retaining the same great acceleration. We would slightly alter the port timing for different tracks.
These test were done with exhaust port timing set with gate valve up of 192'. the sub ports were lower and the highest transfer was 126'. Compression was at 235 psi.
Remember its all about the combination. Pipes work the best in the combination they are designed for.
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Ok thanks ya im not concerend on peak hp I want usable hp
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I shoulda just bought the pipe when I had the money lol leason learnd the hard way again lol
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I just got one if arlans 350g hand coned pipes its not in the frame yet still lots of snow here but its a pretty sweet lookin pipe and it dwarfs my old fmf gold series in size
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I have a unported ct330 motor. what one of your pipes do you think would work good on this setup for dunes. I plan on talking to you when I need to go next bore size about porting it for the same.
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I would recommend our TRX 350G pipe and silencer for that combination.
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I just got one if arlans 350g hand coned pipes its not in the frame yet still lots of snow here but its a pretty sweet lookin pipe and it dwarfs my old fmf gold series in size
would like to see pics of it on the bike when you get it installed
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(http://forums.trx250r.org/vbulletin_imports/76_195_2017-04-18_2712.jpg)(http://forums.trx250r.org/vbulletin_imports/76_196_2017-04-18_8541.jpg)(http://forums.trx250r.org/vbulletin_imports/76_197_2017-04-18_4340.jpg)
heres my 350g installed on mine, fits awesome! everthing lines right up, i used rubber mounts on the silencer and the pipe as well
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That looks awesome
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I have a ct 330 with cr ignition not sure on the porting, but I will ride only mx. What pipe and silencer should I go with, not to concerned with overall top end, more into quickness? The 250b or 350g ? Silencer?
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The LED TRX 350G is the perfect pipe for what you are looking for. We have chrome pipes in stock. The chrome pipe and silencer is $695.00.
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thats a great looking pipe and silencer!
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I will be upgrading to a 310. What combination would you recommend for woods riding? Would the same combination work in the meantime until I perform the upgrade?
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Hey Arlen, I have one of the old LRD 350D Big Bore pipe and Silencer and I am looking to rechrome it. I was curious, who does your chrome work by chance? I would really like to get this pipe and the silencer tip and stinger rechromed. Thanks.
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Sorry the chromers we use will not rechrome old exhaust parts. Also the chrome they do is awesome, but the service is terrible. Turn around time is never less than 5 weeks.
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"We can build the oval LRD big bore silencer for $149.95 which is less than the round style which is $195.00.
We only have enough stampings to build 5 of the LRD 350D pipes. We plan to build them this winter"
Hey Arlen, do you have an LRD Big Bore Silencer and a LRD Big Bore Pipe in stock chromed? If not, are you planning on making any more of these and if you could are you able to post pictures of these? Thanks for your time.
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We now have LRD TRX 250B pipes! Unchromed costs $249.95. Chrome TRX 250B pipe costs $399.95. The chromed version will be available in 3-4 weeks. Pipe includes mounting brackets and spacer. The round silencer costs $195 unspark arrested and $225 for spark arrested. The oval silencers will be available soon and will cost $149.95.
(http://i779.photobucket.com/albums/yy79/ledperformance/LRD%20TRX%20250B%20Exhaust/IMG_0157_zps90c1cf3c.jpg) (http://s779.photobucket.com/user/ledperformance/media/LRD%20TRX%20250B%20Exhaust/IMG_0157_zps90c1cf3c.jpg.html)
Arlan, where are the silencers at on the LED website? They are either MIA or I'm looking in the wrong place. Btw - can't stop looking at my hand coned pipe and oval silencer. You do awesome work.
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(http://i779.photobucket.com/albums/yy79/ledperformance/LRD%20TRX%20250B%20Exhaust/IMG_0157_zps90c1cf3c.jpg) (http://s779.photobucket.com/user/ledperformance/media/LRD%20TRX%20250B%20Exhaust/IMG_0157_zps90c1cf3c.jpg.html)
Arlan, where are the silencers at on the LED website? They are either MIA or I'm looking in the wrong place. Btw - can't stop looking at my hand coned pipe and oval silencer. You do awesome work.
thought i I read where he said he lost his internet guy and his website hasn't been updated..
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Guess I might have to do it the old way and pick up the phone.
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Guess I might have to do it the old way and pick up the phone.
:rofl:hahaha Ya seems like phone communication is ancient way of communicating now a days lol
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I called Monday and 250B unchromed were gone
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I called Monday and 250B unchromed were gone
If they are gone then they are possibly gone for good. It may be hand coned from here on out.
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Arlen said if he got some more folks interested and paid, they would make another run of them in a couple months
(250B non chrome)
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Arlen said if he got some more folks interested and paid, they would make another run of them in a couple months
(250B non chrome)
Did he say how many = more folks? I'd be interested. It is either this pipe or a Duncan.
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I am reading all of this and am a little confused now. I just purchased a 1987 cylinder that has a 295 sleeve in it. It appears someone has attempted some port work , not sure who. My questions are: 1. Will my stock carb feed this ? 2. Do I need a BB pipe or will my FMF fatty that I have be ok? I will be running this next year in an XC series. I will be coming off of a 450R that I have raced XC for years now, so, I want all the torque that I can get out of this. Don't really have the $$ to buy a 310 kit. Any comments or recommendations are greatly appreciated.
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I am reading all of this and am a little confused now. I just purchased a 1987 cylinder that has a 295 sleeve in it. It appears someone has attempted some port work , not sure who. My questions are: 1. Will my stock carb feed this ? 2. Do I need a BB pipe or will my FMF fatty that I have be ok? I will be running this next year in an XC series. I will be coming off of a 450R that I have raced XC for years now, so, I want all the torque that I can get out of this. Don't really have the $$ to buy a 310 kit. Any comments or recommendations are greatly appreciated.
A 295 will not rerquire a BB pipe, especially if you're racing in XC.
I'd say a 37-38mm carb would be just about right for that motor.
Make sure you get that 295 OEM resleeve spec'd out by someone who knows them, they are very prone to blowing head gaskets. Did it come with an o-ring head?
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A 295 will not rerquire a BB pipe, especially if you're racing in XC.
I'd say a 37-38mm carb would be just about right for that motor.
Make sure you get that 295 OEM resleeve spec'd out by someone who knows them, they are very prone to blowing head gaskets. Did it come with an o-ring head?
Thats some good advice. Not to mention the price of a BB pipe is as expensive as a new BB from ESR
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It has a regular head gasket. No o-rings. I can pull the studs and have the flatness checked.
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What is better, gasket or o-rings?
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Oring is better. Better heat transfer and holds up to pressure a bit better. A little back ground, most builders buy a 300 sleeve and slap it in a stock cylinder. Most aftermarket sleeves run such a large outside diameter that it cuts into the water jacket. Different metals, when heated, expand at different rates, causing small separations between the aluminum and iron. This allows coolant to run down the outside of the sleeve and into the bottom end. Also they run stock head studs, which have big flanges on them. This does not allow enough mating surface for a tin head gasket to work. And not enough material to cut an oring groove into.
Its been years since I've talked to Arlan about his 300 kit for oem cylinders, but he was having a sleeve made that didn't cut into the water jackets, and he used a non flanged stud. He could run the cast iron a bit further out at the top of the sleeve, this gave enough room to cut an oring groove.
That was a rock solid kit. Barry Hawk and Bill Balance won many gncc races and championships with that motor
Best regards
-Jason
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I will have to post some pics of my cylinder. The head studs are not flanged. I hope I didn't buy a turd....