05 trx450r questions..

[crf250rdr]

looking at moving away from the ltr and gonna build an 05 trx450..anyways i rode one with a sparks cam, sparks exhaust, and a 13.5:1 piston and i felt like it didnt even compare to my ltr power wise..any tips on what id need to do to get the 450r power up there? maybe switching to an 07 or 08 450 cylinder head? no high comp piston stuff cause id like to steer away from it..

[brent701]

looking at moving away from the ltr and gonna build an 05 trx450..anyways i rode one with a sparks cam, sparks exhaust, and a 13.5:1 piston and i felt like it didnt even compare to my ltr power wise..any tips on what id need to do to get the 450r power up there? maybe switching to an 07 or 08 450 cylinder head? no high comp piston stuff cause id like to steer away from it..

really? IMO that is all rider error.
This was a stock vs stock dyno
Red-Honda
Green-LTR
the honda out pulls the LTR just about to red line. than the LTR peaks a little higher.


I sold my LTR to get a Honda and I never look back. I feel I should have done it a long time ago.
Stock vs stock Yeah the LTR handles better (50") but it's not costly to get the TRX up there.

I rode a 05 with a 13.5:1 pistion pump gas Hot cam stage 2, DASA and you handed my LTR it's ass power wise. You couldn't keep the rear tires from spinning.

[crf250rdr]

[QUOTE=brent701;43641]really? IMO that is all rider error.
This was a stock vs stock dyno
Red-Honda
Green-LTR
the honda out pulls the LTR just about to red line. than the LTR peaks a little higher.


I sold my LTR to get a Honda and I never look back. I feel I should have done it a long time ago.
Stock vs stock Yeah the LTR handles better (50") but it's not costly to get the TRX up there.

I rode a 05 with a 13.5:1 pistion pump gas Hot cam stage 2, DASA and you handed my LTR it's ass power wise. You couldn't keep the rear tires from spinning.[/QUOT

wasnt rider error, maybe the bike was just a peice..idk. i havent seen those numbers before..i thought ltrrs were around 40-44hp stock

[brent701]

wasnt rider error, maybe the bike was just a peice..idk. i havent seen those numbers before..i thought ltrrs were around 40-44hp stock

HP numbers do not mean a thing when the quads are dyno'd on two different dyno's

You see the smoothing number on the upper right side of the char? It says 5. Mine says 5. alot of other people will run a 4 on smoothing. It adjusts the HP/TQ numbers around. You could have a 70HP engine on one dyno but only show 60 on another dyno.

If you look at the chart i posted. The Honda out pulls the LTR just about through the whole useable power range.

cost vs cost (if you build a LTR suspension wise) you gonna be about the same cost if not more

I popped 2 trannys on my LTR gone through 2 heads. I have no had a problem(valve adjustment) on the Honda. It has 200+ hours and still runs strong

[D.A.D.]

looking at moving away from the ltr and gonna build an 05 trx450..anyways i rode one with a sparks cam, sparks exhaust, and a 13.5:1 piston and i felt like it didnt even compare to my ltr power wise..any tips on what id need to do to get the 450r power up there? maybe switching to an 07 or 08 450 cylinder head? no high comp piston stuff cause id like to steer away from it..

You can not put an 06 or newer head on 04-05 models. Cam and exhaust are your big power makers. Good luck

Rich

[crf250rdr]

HP numbers do not mean a thing when the quads are dyno'd on two different dyno's

You see the smoothing number on the upper right side of the char? It says 5. Mine says 5. alot of other people will run a 4 on smoothing. It adjusts the HP/TQ numbers around. You could have a 70HP engine on one dyno but only show 60 on another dyno.

If you look at the chart i posted. The Honda out pulls the LTR just about through the whole useable power range.

cost vs cost (if you build a LTR suspension wise) you gonna be about the same cost if not more

I popped 2 trannys on my LTR gone through 2 heads. I have no had a problem(valve adjustment) on the Honda. It has 200+ hours and still runs strong

yeah ive been through a head on my ltr too, so thats why im thinking about switching over..

You can not put an 06 or newer head on 04-05 models. Cam and exhaust are your big power makers. Good luck

Rich

i just read about that.. now it looks like ill be deciding what year i want

[brent701]

i just read about that.. now it looks like ill be deciding what year i want

From the info i have been gathering about the Honda's

04-05 have the better suspension geometery(sp)
04-05 have less power. Heads are harder to port than the 06+
04-05 have 14/38 gearing 06+ have 13/38 I think. I know a 09 does
06+ have more power and a FCR carb. Which you can put on the 04-05 with a few things to change around.
04-05 have the stronger tranny but weak Crank bearing(not all have the problem) mine hasn't(Honda made a updated bearing for this).. 06+ have stronger bearings, weak 3rd gear from what i am told
04-05 have a shorter swing arm
06+ are about 1" longer. You can run the 06+ swinger on the 04-05. I am running a 09. Helps in the corners

I picked a 2005 up for 2,000 bucks.
Hell there is a guy ion trx450r.org that says he has 400+ hours on his 05 TRX. Mine has about 200. and it almost time for a rebuild.

Get on bikebandit or service honda and compare prices.
LTR head is about $450
TRX head is $240
TRX jub is $203.
TRX crank/rod assy is $230(ish)

you break a case on the Honda, You can replace just that case.
You break a case on the LTR you need a whole case assy (Both cases)

[Trentk]

everything brent posted is accurate. Also most everyone builds race quads out of 04-05's and not 06+'s. Not sure why, you can do just as well with either.

if you want a reliable, high hp honda take it to DFR and get the head porting, cam and exhaust package that Rudy recommends. You will also need the better FCR carb. Should put down 55+ rwhp with 13:1 compression and be very reliable.
the 05 crank bearing problem is extremely annoying, mine eats a crank bearing every 12 months almost on the dot and I do the annoying slow oil changes too.

[lwrider20]

you can get about the same amount of hp out of an 04-05 vs 06 and up but the high hp 06's will require a lot more maintanence to keep them running.

[panici33]

I am going to throw my opinion in the mix because I ride Suzuki but I have ridden all brands. There is nothing wrong with the LTR and you can get the same amount of HP out of LTR as you can a Honda, or any other brand. The bottom line is you can have 10k into a motor, have a million hps, but if you can't ride for crap you lose every time. Its all about the type of racing you're doing too. I used to keep track of what the Pros were running but their quads are a "little" different than ours. The third round of the motocross nationals there wasn't a Honda in the top 5. Suzuki took 1 & 2, Creamer first and he has ridden other brands and done well.

The reason why the parts and maintenance of the TRX is cheaper than most quads is because its been around the longest, its less sophisticated than most other brands and Honda has made very little changes to the quad throughout the years. You will find cheaper parts for the TRX because there are soooo many of them.

And everyone on this forum rides a Honda, and in fact, the majority of the quad population in Arizona rides a Honda (that I never understood) so anytime the "brand war" pops up or there is some sort of brand comparison on here Honda wins with the numbers. And again, I have owned all brands, including a Honda, and I would buy another one. Would it be my next one, absolutely not. If I were in the market to buy a new quad...I would wait until Yamaha comes out with their reverse head YFZ450R because it's going to happen...Laeger already did it; now that is of course if you have about 8 or 9 grand to spare, but in my opinion the new YFZ450R is the quad to beat.

Off soap box now and sorry crf250rdr for not answering your question whatsoever