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Pro52R
08-20-2006, 11:38 PM
OK....


I tested my bike today...my buddy had a DB meter.


And all I have to say is...NOOOO WAY

I am not goin to pass..I am @ 114db just idling....


And @ half throttle I am @ 143.


How in the hell are they expecting us to race like that? I mean c'mon you cannot have anything done interanlly because your just goin to choke it out.

I mean yah the stock quads are fast...but ummmm..there are people who enjoy more power (as myself)

And this 96Db thing has got me flustered..I mean If there was another series I'd race it..Hell the GNCC gives you 102 @ lkeast.


A stock YFZ w/ the baffle out is like 99...so I mean WTF?


MAybe his meter was wrong..but dang my engine is just as loud...do i need a silencer on my engine too? (we all know those Dales scream..litterly)


So how are we supposed to make power if you can't make a peep?



And I know you guys will come on here and say.."well my stock this or that will smoek you"


Good..I am glad you can smoke me..but I like the extra power..its my sign of a job well done,lol

Fred823c
08-21-2006, 03:50 AM
I dont know about you, but I rarely find myself hitting 5th gear in those woods sections.. I think the only time power would matter is in a few ways... Holeshot, Passing someone and pasture runs.

Bringing them back to stock pipe isnt ment to bring down your skill.. Its about saving riding areas.

I wouldnt worry so much about your engine mods.. Suspension is where its at.

Spectech
08-21-2006, 08:15 AM
We all knew this was coming a year ago! We are just going to have to make do. Am i happy about it NO but that isn't going to change anything.

Pro52R
08-21-2006, 02:35 PM
well i already have the engine work...so I can't just go back.

The additional power is great for yes holeshots and pastures,...but Also it helps when you ahve a rough section..the additional power just skims across it..also I have waaay more torque to pull outta corners and such...so the engine work isn't just for top end..it6 really gives you that tractor stump pulling power

Spectech
08-21-2006, 03:24 PM
I can't see why even with motor work you can find a new quiet pipe you may have to get a fabricator invoved but that shouldn't be very tough. The only problem you will have if you can re-map your motor to the new pipe.


Let me know if you need help with a fabricator i rent space to one that is very good.

pdavis
08-21-2006, 06:50 PM
i know what you mean pro 52, the dale has just as much engine noise as exhaust and it doesnt help that the cyclinder head is 180 degrees from the "jap" quads, that just means that our exhaust is about 12-16" shorter than anyone elses, shorter=louder
blackwidow sells and full exaust for the big bore dales but they are 500 bills,
check with cannondale27 on cannondaleriders.com i think he will sell you cheap(dont like it)

and not everyone raced last year "to get ready" for the db check and i know of a couple of guys who have never raced before that are going to give it a try.... and i have filled them in on the db stuff....but what about the other people who are beginners and will be making their first race, and dont know about the db check, are they going to be sent home if they dont pass ???
not trying to bust stones here, just my .02

mudnuri
08-21-2006, 07:16 PM
Nah, nobody gets sent home. They will be dq'ed, though.

This is an issue I am very torn over. I come from a racing family and modifying for improved performance was/is something you just do. It seems we do everything we can to go faster. This usually meant the race machine was a loud beast. Free flowing exhaust on a modified engine was part of the build to get maximum performance.
Now, in our case, it seems everything has changed for the worse as far as land use anymore. There is always an excuse why I can't ride my quad anywhere.
This noise thing is just some other BS that is used against this hobby. I have a hard time believing someone complains about 1 day out of the year, maybe two days of a low rumble coming from the woods that are typically away from homes. It didn't happen anyway. All this change was for preventetive measures.
The powers that be made this a rule and now that is that. However, just like this change was made, proposals are made. Votes are tallied and rules are changed. It is a democracy. I feel 96dB is too low. But who am I. I do like the idea of a limit.
143 dB must hurt you, Joe LOL! With your engine mods, to meet the level and get it to run worth a darn is going to be? tough? Impossible?

pdavis
08-21-2006, 09:23 PM
143db...that is a tad to loud....but like joe said, the motor work is already done, so even a stock pipe on what joe has will still be loud

Pro52R
08-21-2006, 11:26 PM
I'll have to try the black widow...

Cdale27 said he just didn't like iot..so thats why it scared me away.....

But if I have to...

I was thinking maybe one of those Supertrapp IDS 2 pipes..i think they make em universal?


here we go..

http://www.supertrapp.com/product_sections/cat.asp?CatID=33

pdavis
08-22-2006, 07:04 PM
the problem with the blackwidow(fromwhat i was told) was that it leaks alot, that could be fixed though, since i have a stock motor, i might try the stock exhaust if i cant get my big gun to cooperate

Fred823c
08-22-2006, 10:08 PM
I just want to say that from what I was running before.. The HMF full system, bought it for a few hundred.. Sold it for 150 because I had no use for it anymore.. Talk about a loss !! It was only a few months old.

Pro52R
08-23-2006, 11:17 AM
how can the leaks be fixed?

blaster01
08-23-2006, 11:37 AM
Make sure your exhaust manifold mounting brackets are flush and you have good gaskets. Use a heat resistant gasket sealer and silicone applied at all the joint sections and screw holes. Sealer and silicone can be found at your local automotive supply store.

Albright
08-24-2006, 03:56 PM
just a reminder joe they want you to be 96 db but 97.5 will pass because there is a 1.5 db tolarance for error,do to changes in test conditions, equipment etc.

mudnuri
08-24-2006, 05:31 PM
As a Pro rider, how do you feel about this sound level and what did you have to do to comply with your racer?

Albright335
08-24-2006, 06:12 PM
Hi Brian,

The sound issue: let's face it - no one likes it or feels it is fair. BUT - I do think it is a necessity to save our riding areas - and FTR has given a year to comply. I do think the level established by FTR for XC is to low and should be a little closer to 98-100 (100 being MAX with no "give"). I think it would make it easier on everyone and still quiet down the events/quads/bikes.

I think 98 would have been a good start and would have been a step in the right direction (MX is 98) - then as things progress and land use and sound regulations become stricter then the number could have been lowered to 96. At least we would have been able to make the changes gradually...

HMF and I are partners...I currently run the Sport Series which has an available quiet core. I did not have this exhaust last year and have not been able to have it checked as of yet (using FTR's policy). Phil has been playing with it and it is substantially quieter with the core - so I am hoping this will pass. We will do what we can to pass with this system...if not I will use my stock exhaust for FTR and put the HMF on where the sound restrictions are no so restricting.

Jen

Luis
08-24-2006, 06:24 PM
I have the HMF sport with the quiet core, it is not that loud but it was 98-100 last time I got it tested ??? they had two diferent readings, same pipe same quiet core, same day enuff: I have my stock pipe ready if the reading is too high I just put it on, I'm not re-jetting it, I guess it will be reach, hope it works fine.

Tommy_98
08-24-2006, 07:11 PM
I hope they let people know prior to the race that they are too loud because,I'd hate to see you guys/gals get a good finish and then have it taken away because of a DQ.

Albright335
08-24-2006, 09:02 PM
I will be making it a point to get my quad checked before each and every race....spin:

Jen

mudnuri
08-25-2006, 12:50 PM
Me too.
I bought an aftermarket SA which is much more free flowing. Don't know if it will pass or not.
The stock SA is super restrictive. I still have it and will have it on hand if the other fails.

Spectech
08-25-2006, 01:43 PM
I just purchased the DMC afterburner quiet pipe its supposed to be under 96db.

Spectech
08-25-2006, 02:31 PM
I have the Hmf Ballance pipe now and i know it won't pass even with the quiet core.

Albright335
08-25-2006, 04:06 PM
luis you can get a different reading depending on engine temp,a cold engine will give a higher reading so make sure your quad is up to temp when you get checked.

phil

Pro52R
08-28-2006, 01:30 PM
also fresh packing

Luis
08-28-2006, 08:45 PM
luis you can get a different reading depending on engine temp,a cold engine will give a higher reading so make sure your quad is up to temp when you get checked.

phil
Good point Jen. I talked to the guys at HMF and they told me that I should be really close to 96db, I don't know how close am I, will see.

mudnuri
08-28-2006, 09:58 PM
Somebody told you can test at a stero shop. They usually have a meter.

kdeal
09-09-2006, 11:34 PM
OK....


I tested my bike today...my buddy had a DB meter.


And all I have to say is...NOOOO WAY

I am not goin to pass..I am @ 114db just idling....


And @ half throttle I am @ 143.


How in the hell are they expecting us to race like that? I mean c'mon you cannot have anything done interanlly because your just goin to choke it out.

I mean yah the stock quads are fast...but ummmm..there are people who enjoy more power (as myself)

And this 96Db thing has got me flustered..I mean If there was another series I'd race it..Hell the GNCC gives you 102 @ lkeast.


A stock YFZ w/ the baffle out is like 99...so I mean WTF?


MAybe his meter was wrong..but dang my engine is just as loud...do i need a silencer on my engine too? (we all know those Dales scream..litterly)


So how are we supposed to make power if you can't make a peep?



And I know you guys will come on here and say.."well my stock this or that will smoek you"


Good..I am glad you can smoke me..but I like the extra power..its my sign of a job well done,lol

The DB meter was probably too close to the quad or pointed in the wrong direction. The numbers you got are a little too high, even for the Dale. As for engine noise the biggest culprit is the straight cut gears under the clutch cover. We have been coating the inside of the side cover and clutch cover with a heavy duty silicone product that absorbs a lot of the sound that is made by the gears. The side covers are made of magnesium, if you could find a billet aluminum clutch cover it would help (they were originally made by R.I.S.). Almost all the aftermarket exhausts for the Dale can be fit with a quiet core, even the factory Ti exhaust system. enuff:

Pro52R
09-14-2006, 09:32 PM
maybe getting a 450r...

1st race..probably borrowing a Z400,lol

number5
09-29-2006, 10:12 PM
I just made the cut. I repacked right before practice. I seen I was the only two stroke in line and was suprised at how quiet the four stroke bikes sound at idle. I thought for sure I would not make it with the two stroke popping sound my bike makes at idle. What is that device they put on the fender?

pdavis
09-30-2006, 10:20 AM
that thing that they put on the fender will tell them the quad rpm through vibration...not rocket science but somewhat effective

kenz
09-30-2006, 10:25 AM
I just purchased the DMC afterburner quiet pipe its supposed to be under 96db.

Hey Spectech I have the DMC Afterburner Quiet full system on my Z400. The motor is stock and and there was about 12 hrs on the packing when I got tested at the QS in Orlando last weekend I came in at 91 DB.

There was definite improvement over the stock pipe. A little improvement in the low end, but the mid and upper RPMs are much better. If you rejetted for your HMF exhaust you may not even need to rejet for the DMC as it seems to flow pretty good. Also you can remove the quiet insert in about 2 minutes when sound isn't an issue.

OOPS... I see in another post you were already running the DMC. Man, that sucks it fell off. On your quad does it hang out past the grab bar? Cause it does on mine, makes it a pain to stand it on end.

Ken

digginfool
10-03-2006, 08:55 PM
I have CT Racing's pipe with the Supertrapp spark arrestor on a Raptor 660. I tested out at 94 dB in Orlando at the QS. I have 9 discs in.