RUNS POSTED:

http://www.trx450r.org/forum/index.php?showtopic=72918













Well, the days are winding down to me finally having my motor put back together after the infamous lower rod bearing failure. I hope to have it back together and on a dyno in a month or so. It will be tuned at Sandtrax in Tulsa, Oklahoma. I have heard nothing but good things about this place and am happy with the service so far just from talking to Lonnie on the phone.

Here are the specs on the motor:

All new OEM bearings
New OEM Honda crankshaft
New tranny gears with "tranny mod" from MotoXperts
Hinson racing clutch basket
Tusk clutch with HD springs
Athena 100mm cylinder replated and honed to .001" piston to cyl wall clearance
Venom 14.25:1 100mm 2 ring piston
Venom ported head
+1mm KW valves in all 4 corners
KW dual valve spring kit
42mm carb w/ rat stack
Modded and shortened ESR intake
Will be running VP110 leaded

Now, I want some opinions on what cam to run. I have been a fan of the Hotcams. I like all around power and will be messing around in the dunes a lot. The stage 2 is at the top of the list right now. I like to drag race a lot so the stage 3 is appealing to me, also. BUT I do not want to sacrifice much low end just for the time I spend dragging. I have also been looking into the Web 208 but am not really sure where it will fall in compared to the HC stage 2 and 3. I guess realistically, I want something inbetween the stage 2 and 3 Hotcam.

I am hoping for somewhere in the 60hp range and would be very happy if I got there.

So, what are the guesses as far as power is concerned(will be running dyno tires) and what does everyone suggest for a cam?

Thanks for anyones opinions and I will be sure to post up the graph and numbers when all is said and done.

-Pat

I would say to run the stage 3 with the 490. I have a stage 3 and have more bottom end than needed. I wouldn't be worried about that. I have no experience with the 208, but it seems a lot more top end biased than the stage 3. Maybe you could look into an 04/05 HRC cam.

You have all the parts to make the HP you're looking for... But only the dyno will tell us that.

what the defference between the s2 and s3 1hp top and bottom?
rather then looking for something between them buy an adjustable cam gear and reatrd or advance the timing 2 degrees on either of the cams and you will be in between.

like dj450 said, i would go with the s3, you wont miss any bottom end with the 490

Thanks for the replies, guys. I am really leaning towards the stage 3.

I like the stage 3 with my setup. and with that bore job youll have plenty of bottum end power but if youre draggin most of the time like me youre gonna want the st3 instead of st2

I estimate that if you are able to come ride with us in february, you will kick my butt!

it should bust 60hp I would think though!

haha I really don't care about being the fastest out of any given group. I just want a reliable build that makes decent power. I want as many pieces as possible on this motor to be brand new. Plus it gives me a reason to upgrade everything while Im at it!

All depends on whos dyno you strap it on

I would stay away from KW valves...in the last 2 months I think I have heard of 4-5 engines blown from KW valve failure .. something about them being made in china now.. I would spend money and change that as to eliminate that hopefully. JMO.. other than that sounds like a nice build.

208 web

Hey Travis,

Could you explain why you think I should go with a 208?? I really don't know much about this cam. I have heard good reviews, but that's about it.

more pwr with less compression, in my build it revs faster,

i like it better, just my exp

After talking to many people, I have decided to go with the Hotcams Stage 2. I think it will work well for what I am looking for. It's all around performance and valve train preservation really apeal to me. I'm sure I will be giving up a few peak HP numbers, But will be happy with the overall power curve.

Thanks for everyones inputs.

Good luck on the valvetrain preservation. With the right combination of components there are alot of webs that will last along time. Not to mention will out perform the HC.

Thank you for your in depth and well thought out comment.

just curious, are you going from a relatively stock 06 to all of these mods?

were you just running the stock 06 cam in it before the rod bearing went?

You're very welcome.

When the rod bearing went I had about 10 hours on a Venom ported head and venom 470 14.25:1 compression. HRC cam. It had about 5 hours on the brand new top end when the rod bearing crapped the bed. Just bad timing on my part.

Prior to that I had about 200 hard hours on just the HRC kit with full exhaust.

I started experiencing horrible blow by and intelligently figured it was just bad rings on the stock piston. So, I figured it would be a good time to upgrade. I went with the venom 14.25:1 470 kit with ported head package. Turns out I was getting blow by from my rod bearing starting to go out and creating a less than appealing seal with the stock rings to stock cylinder. A new top end masked the blow by problem and was running well until the crank finally let go.

And that is where I am at today. A BRAND NEW bottom end and juust waiting on top end machine work to get finished so I can get her back together and on the dyno.

I am very excited to get this back together. After having a little girl and some financial problems, this has been a very long time coming. (it's been down over a year now) Luckily, I have some good friends that let me ride their machines every so often, so I haven't had TOTAL withdrawal. (YET.) There's nothing like riding your own bike, though. She took care of me for some long hard hours and I'm just trying to return the favor and give her as many new bearings/seals/parts as possible.

It has definitely been a long time for you. I blew mine up after you did and that was January of last year. Mine being down for a couple months killed me... I can't imagine being down for as long as you have been. Good luck on the new build.

Head came in today. Work was excellent, as always. John at Venom had my head on Wednesday last week and here it is Monday night installed and almost ready to go.

Waiting on the carb and a stator. Then add fluids and a short break in and off to the dyno!!

Decided to swap out my stage 2 for a stage 3. Hopefully I like this cam. I think the displacement and compression will make up for any bottom end loss I would get vs. the stage 2. The stage 2 just seemed to flatten out up top. A little too much for my liking. I am usually in the higher RPM's when I ride anyways so the stage 3 theoretically should be a better fit for me.

Cam will be here on Thursday and I plan to hit the dyno on Saturday. (3-9)

I am not really concerned with the 60 HP number as much anymore. I just want a good running reliable bike with decent power. The dyno is just a tuning tool and could probably hit 60 on one dyno and then read 55 on another. I have no idea what brand of dyno Sandtrax in Tulsa uses, btu I do know that the dyno operator is a way cool guy with tons of tuning knowledge.

Guess we'll see...

25hp 12tq

Yea..... On sand sharks and not strapped to the dyno!!!!!!!

Dyno moved to Thursday 3-12

I sure hope you can hit 60Hp with that motor.

-Kip

It would be nice.... As long as it is RELIABLE I don't care if it only puts down 55.

my bff lives in vinita and has used sandtrax for tuning. supposedly that dyno reads high. you may have some bragging rights and it may hit 62?? like you said though, 55 and it runs is good.

my bike only put down 54.7 and its fast.

This is the first I have heard about his dyno reading high. I have heard it reads pretty consistently with most Dynojets.

thats what he's saying. do you know what kind of dyno the shop at little sahara is?

I am not sure. I have heard some bad things about their tuning and customer service so I chose not to look into their dyno.

I have never heard one bad thing about Lonnie at Sandtrax. That is why I chose to go with him.

jerod and his buddies out there dont have anything bad to say either. just that the dyno was a little loose.

Dyno tonight. Can't wait.

What is the norm in the dyno room?? Should I post up graphs in here? Or make a new thread so people don't have to search through 3 pages to find graphs??

I'm thinking the later.

do the later, I wanna see what that thing turns

Yea I'm excited, too. For some reason to me it just doesnt feel like 60hp. Or even close to that. If I had to guess right now I would guess 57ish?? Who knows, maybe jetting is way off right now, maybe I just havent broken it in enough. Guess we'll see tonight.

Good luck!

Post a new topic with the graphs in the first post...I hate having to look through 16 pages to find one dyno graph that should have been posted at the beginning.

Also find out what a stock 450R makes on the dyno while you're there!

Ill do that for sure, Gary. Thanks

Any news?

59.1/37ish maybe 38. Cant remember exact torque. I will get the graphs off of my buddy hopefully later today and post em up on a new thread.

Stock 06TRX makes 36-37 hp on his dyno. I think thats pretty average.

Dang Pat, pretty good numbers. I hope you make it to the sand while we are there.

I've heard a few people complain about their dyno but in my opinion if there was ever a problem Lonnie would replace it. All the numbers I know of from there have been realistic, most people just assume they have way more than they do, i.e. Raptor from the local area factory 35 hp dude puts on a pipe and piston and talks 60+ needless to say he did'nt believe the dyno lol

I saw nothing wrong with his dyno. It started off at 57hp and was a little lean. They richened it up on the needle a little bit and the af was perfect and power went up to 59

Well congrats there buddy you got about as close as you could, now get up with Lonnie after April 25 and come down to Nashoba and run with us, the average in the pro class is around 50 hp, 1/4 mile red dirt oval, fun fun fun

Sounds like fun, man. Ive never done any type of racing really. Just dunes and whatever else I can find around this place. Still running the stock suspension, actually.

with the kind of power youre putting down just lower it, put on a set of slicks, get a sway bar, and youre ready. Lonnie brings a lot of guys from around OK City that run the indoor and national circuits and they have all done good, the only hard one to beat on the track is Lonnie (!@#$%^) that friggin hybrid he runs is unbelievable but as a racer he just dont make mistakes.
Seriously the most power I remember seeing last year was 61 hp on an LTR, and it was too much for him.
I plan to post on here when we get close to a date, and hope you do consider it, hell bring youre friends.
When we get a website put together I'll let you know about that too.

pat...... nice numbers.

i bet its get a heck of a curve. got a nice plateau on top of it. just like they should be. not a straight line to a peak.

how did that clutch hold????

Runs posted:

http://www.trx450r.org/forum/index.php?showtopic=72918

Nice runs, props to you and Venom.