FJowners.com

General Category => General Discussion => What did you do to your FJ today? => Topic started by: aviationfred on August 21, 2014, 07:51:33 PM

Title: RPM exhaust installed
Post by: aviationfred on August 21, 2014, 07:51:33 PM
Received the new RPM exhaust today.  :yahoo: :dance2: :music:

Install is fairly easy. Everything fit perfectly. One thing Randy instructed was, before the first start up, wipe the complete exhaust down with acetone so any finger prints do not get burned into the stainless steel.

Here is how it sounds. The jetting will need to be adjusted, you can hear a few little back fires.

http://youtu.be/Wtf4u7SlkZQ (http://youtu.be/Wtf4u7SlkZQ)


(http://i119.photobucket.com/albums/o145/aviationfred/RPMexhaust_zpsf91975af.jpg) (http://s119.photobucket.com/user/aviationfred/media/RPMexhaust_zpsf91975af.jpg.html)

(http://i119.photobucket.com/albums/o145/aviationfred/RPM1exhaust_zps12307442.jpg) (http://s119.photobucket.com/user/aviationfred/media/RPM1exhaust_zps12307442.jpg.html)

(http://i119.photobucket.com/albums/o145/aviationfred/RPM2Exhaust_zps7320bed5.jpg) (http://s119.photobucket.com/user/aviationfred/media/RPM2Exhaust_zps7320bed5.jpg.html)

Fred
Title: Re: RPM exhaust installed
Post by: cclase on August 21, 2014, 08:03:29 PM
Fred, looks and sounds great!
Chris
Title: Re: RPM exhaust installed
Post by: charleygofast on August 21, 2014, 09:22:01 PM
Very nice! Kinda reminds me of my Yoshimura. Can you change oil without removing it Fred?                                                                                              Vroom, vroom! Charley.
Title: Re: RPM exhaust installed
Post by: aviationfred on August 21, 2014, 09:42:18 PM
Quote from: charleygofast on August 21, 2014, 09:22:01 PM
Very nice! Kinda reminds me of my Yoshimura. Can you change oil without removing it Fred?                                                                                              Vroom, vroom! Charley.

Yes, the oil can be changed WITHOUT removing the exhaust.  :good2:

If the exhaust does need to come off. It takes longer to remove my lower cowling than it does to remove the exhaust. The complete exhaust is held on with springs.

I don't think this part of the exhaust has been addressed in ANY previous post. The really unique thing with this exhaust is the head mounting. This exhaust uses a spigot type of head mounting. Small spigots, about 3 inches long get bolted to the head. The head pipes slide onto the spigots and are held on by springs. To remove the head pipes, remove the springs and the pipes slide right off. You should NEVER need to replace the exhaust gaskets again.  :yahoo:

Fred
Title: Re: RPM exhaust installed
Post by: airheadPete on August 21, 2014, 10:13:20 PM
Lovely, just lovely...  :good2:
One of these days in the not too distant future. :i_am_so_happy:
Title: Re: RPM exhaust installed
Post by: Firehawk068 on August 21, 2014, 11:05:56 PM
Looks and sounds great!
I'm impressed!
Title: Re: RPM exhaust installed
Post by: charleygofast on August 22, 2014, 06:48:02 AM
Quote from: aviationfred on August 21, 2014, 09:42:18 PM
Quote from: charleygofast on August 21, 2014, 09:22:01 PM
Very nice! Kinda reminds me of my Yoshimura. Can you change oil without removing it Fred?                                                                                              Vroom, vroom! Charley.

Yes, the oil can be changed WITHOUT removing the exhaust.  :good2:

If the exhaust does need to come off. It takes longer to remove my lower cowling than it does to remove the exhaust. The complete exhaust is held on with springs.

I don't think this part of the exhaust has been addressed in ANY previous post. The really unique thing with this exhaust is the head mounting. This exhaust uses a spigot type of head mounting. Small spigots, about 3 inches long get bolted to the head. The head pipes slide onto the spigots and are held on by springs. To remove the head pipes, remove the springs and the pipes slide right off. You should NEVER need to replace the exhaust gaskets again.  :yahoo:

Fred
How sweet is that! RPM...better FJ products for a better FJ world!  Cheers to Randy and you too Fred!       :drinks:
Title: Re: RPM exhaust installed
Post by: ribbert on August 22, 2014, 08:44:29 AM
Fred, any chance of that close up 3/4 shot of the front of the can?  BTW, that looks and sounds really cool.

Thanks

Noel
Title: Re: RPM exhaust installed
Post by: aviationfred on August 22, 2014, 09:37:12 AM
Quote from: ribbert on August 22, 2014, 08:44:29 AM
Fred, any chance of that close up 3/4 shot of the front of the can?  BTW, that looks and sounds really cool.

Thanks

Noel

Noel,

I will post a few more photos this afternoon.

Fred
Title: Re: RPM exhaust installed
Post by: racerrad8 on August 22, 2014, 10:32:03 AM
Quote from: ribbert on August 22, 2014, 08:44:29 AM
Fred, any chance of that close up 3/4 shot of the front of the can? 
Noel
Quote from: ribbert on August 18, 2014, 08:31:57 AM
Fred, I'm sure you won't need any encouragement but could you post some reasonably close up photos 3/4's on from the front and the back.
Noel

Noel, I see you have asked this question a couple times of Fred, what are you looking for in the photo?

Is there some information I can provide for you or maybe get the picture you are asking for.

Randy - RPM
Title: Re: RPM exhaust installed
Post by: aviationfred on August 22, 2014, 05:34:03 PM
Quote from: ribbert on August 22, 2014, 08:44:29 AM
Fred, any chance of that close up 3/4 shot of the front of the can?  BTW, that looks and sounds really cool.

Thanks

Noel

Noel,

Here are a few more photos ...


(http://i119.photobucket.com/albums/o145/aviationfred/temporary_zpsdfb48f67.jpg) (http://s119.photobucket.com/user/aviationfred/media/temporary_zpsdfb48f67.jpg.html)

(http://i119.photobucket.com/albums/o145/aviationfred/temporary_zps55c246c3.jpg) (http://s119.photobucket.com/user/aviationfred/media/temporary_zps55c246c3.jpg.html)

(http://i119.photobucket.com/albums/o145/aviationfred/temporary_zps9e133f67.jpg) (http://s119.photobucket.com/user/aviationfred/media/temporary_zps9e133f67.jpg.html)

(http://i119.photobucket.com/albums/o145/aviationfred/temporary_zps3586e3c4.jpg) (http://s119.photobucket.com/user/aviationfred/media/temporary_zps3586e3c4.jpg.html)

Fred
Title: Re: RPM exhaust installed
Post by: ribbert on August 22, 2014, 09:23:26 PM
Quote from: racerrad8 on August 22, 2014, 10:32:03 AM

Noel, I see you have asked this question a couple times of Fred, what are you looking for in the photo?


Is there some information I can provide for you or maybe get the picture you are asking for.

Randy - RPM

Firstly Randy, I can feel the tranquility at your cabin from here. You are a lucky man to have such a place of your own to escape to, and in such magnificent country. I think having no services connected would only make it better.

Back to business, the reason I was interested in the detail of the muffler was this:

(https://farm4.staticflickr.com/3917/14976686636_fae0228b39_c.jpg)

I was curious to seen how robust the construction was. The original photos seemed to show the skin fitting proud of the end cap but I can now see this is not the case. There appears to be a rolled seam such as the one above.

I have the back of my bike raised, the exhausts as high and inboard as possible and my suspension set very firm.

I don't go looking for quite these sort of angles but it does happen from time to time and I was wondering if the photo would give some idea on how it would stand up to the odd scrape.

Noel
Title: Re: RPM exhaust installed
Post by: aviationfred on August 22, 2014, 10:04:46 PM
Noel,

Some serious lean angles to scrape your cans.

The solution is to buy Randy's exhaust and I can Guarantee that you can make all the left hand curves and NEVER scrape your can.  :drinks:

Fred
Title: Re: RPM exhaust installed
Post by: FJ_Hooligan on August 22, 2014, 10:05:07 PM
Fred,
Are those the Buell foot pegs?
Title: Re: RPM exhaust installed
Post by: aviationfred on August 22, 2014, 11:51:48 PM
Quote from: FJ_Hooligan on August 22, 2014, 10:05:07 PM
Fred,
Are those the Buell foot pegs?


They are R1 lowering pegs. The OEM peg holder bracket has to be modified slightly.

http://www.ebay.com/itm/230990498208?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT (http://www.ebay.com/itm/230990498208?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT)

Fred
Title: Re: RPM exhaust installed
Post by: motohorseman on August 23, 2014, 07:11:00 AM
Sounds a lot better than this Ruckus with a "RPM" exhaust -

https://www.youtube.com/watch?v=hFVbgKYpyjw (https://www.youtube.com/watch?v=hFVbgKYpyjw)

Looks better too!
Title: Re: RPM exhaust installed
Post by: Tuneforkfreak on August 23, 2014, 09:37:15 AM
That exhaust is really nice, those guys are amazing. Those foot pegs are definitely on my to do list, a few inches would make a major difference for me.
Title: Re: RPM exhaust installed
Post by: racerrad8 on August 23, 2014, 02:11:19 PM
Quote from: ribbert on August 22, 2014, 09:23:26 PM
I have the back of my bike raised, the exhausts as high and inboard as possible and my suspension set very firm.

I don't go looking for quite these sort of angles but it does happen from time to time and I was wondering if the photo would give some idea on how it would stand up to the odd scrape.

Noel

What diameter are your cans now?

Are you putting the RPM suspension parts on that bike or another?

I can offer to you that my first WCR I attended my 86 had no suspension modifications and my pegs were dragging a lot. The 2nd WCR as well as the Colorado rally I had the RPM fork valves installed and only dragged the pegs on very tight corners after letting the front settle back getting back to the throttle.

After the RPM shock was installed I have not dragged a foot peg again and I am riding harder & faster than ever.

Now, the 93 I acquired and have been riding just basically as a commuter had the R/T fork valves and rear shock adjusted to max preload and shorter dog bones to raise the rear. I went with a ride with son on his R6 and Keary (windancer) earlier this summer and it was dragging pegs and was a very uncomfortable ride.

I added all of the RPM suspension products before my trip this past week but still running bias ply tires on the stock ABS wheels. Not a peg touched the ground and the bike was much more stable during the performance riding in the twisties. Once I make some adjustments to the freeway ride will be "magic carpet ride" smooth, but upgrade wheels arrived yesterday and radials will be installed first before I really start dialing it in.

If you still think the muffler could drag on right hand corners, then the RPM megaphone muffler will never touch the ground while turning.
(http://i1215.photobucket.com/albums/cc517/racerrad8/001_zps836d8b6d.jpg~original) (http://s1215.photobucket.com/user/racerrad8/media/001_zps836d8b6d.jpg.html)

Randy - RPM
Title: Re: RPM exhaust installed
Post by: Mike Ramos on August 24, 2014, 02:38:57 AM
To whom it may concern,

Re: dragging mufflers & pipes - on the 1991 FJ with the wide wheels & improves brakes but with the stock shock and heavy duty springs in the forks, the foot peg dragged regularly and the side of the chin fairing also touched down from time to time. 

Once the RPM Fork Valves and rear shock were installed nothing ever touched down.  After parking the '91 with 170,000 miles, I purchased the [not quite as nice as Conlon's] 1992 and have rode it just over 30,000 miles without a mark on the undercarriage.  Just about a year ago the prototype exhaust from RPM was installed along with the carbon fiber muffler and there is not a scratch on anything.

I ride under a variety of conditions and many different types of roads; perhaps the fun factor is difficult to quantify yet to state it has increased dramatically is not an overstatement.
   
While I take riding motorcycles very seriously, with the improvements in handling and added usable power, I may be riding harder but it is almost nonchalant. 

javascript:void(0);

Ride safe,

Mike Ramos.
Title: Re: RPM exhaust installed
Post by: ribbert on August 24, 2014, 06:49:43 AM
Quote from: Mike Ramos on August 24, 2014, 02:38:57 AM
To whom it may concern,

Re: dragging mufflers & pipes - on the 1991 FJ with the wide wheels & improves brakes but with the stock shock and heavy duty springs in the forks, the foot peg dragged regularly and the side of the chin fairing also touched down from time to time. 

Once the RPM Fork Valves and rear shock were installed nothing ever touched down.  After parking the '91 with 170,000 miles, I purchased the [not quite as nice as Conlon's] 1992 and have rode it just over 30,000 miles without a mark on the undercarriage.  Just about a year ago the prototype exhaust from RPM was installed along with the carbon fiber muffler and there is not a scratch on anything.

I ride under a variety of conditions and many different types of roads; perhaps the fun factor is difficult to quantify yet to state it has increased dramatically is not an overstatement.
   
While I take riding motorcycles very seriously, with the improvements in handling and added usable power, I may be riding harder but it is almost nonchalant. 

javascript:void(0);

Ride safe,

Mike Ramos.


Mike (and Randy), that's all good and well but can you give me something a little more technical, like why?  I don't understand. Smoothing out the ride generally means more suspension travel.

From whom it concerned.
Title: Re: RPM exhaust installed
Post by: ribbert on August 24, 2014, 08:31:08 AM
Quote from: racerrad8 on August 23, 2014, 02:11:19 PM
Quote from: ribbert on August 22, 2014, 09:23:26 PM
I have the back of my bike raised, the exhausts as high and inboard as possible and my suspension set very firm.

I don't go looking for quite these sort of angles but it does happen from time to time and I was wondering if the photo would give some idea on how it would stand up to the odd scrape.

Noel

What diameter are your cans now?

Are you putting the RPM suspension parts on that bike or another?

If you still think the muffler could drag on right hand corners, then the RPM megaphone muffler will never touch the ground while turning.

Randy - RPM

Thanks for the response, the cans are Delkevic ovals which I'm sure you've seen in your workshop.

(https://farm9.staticflickr.com/8246/8492314288_a6bc694946_z.jpg)

Yes, the suspension is for this bike.

Haha, you're absolutely right, scraping the megaphone on my bike would never be a problem, personal taste, but I do like the look of the others.

Like Mike, this happens occasionally too and is a little unnerving as it is nearer the centre of the bike and has no spring it unlike all the other bits, hitting a bump at this point wouldn't end well.

(https://farm6.staticflickr.com/5268/5686768623_655da54115_z.jpg)

I have already posted the query I have as to how RPM suspension overcomes this in response to Mike Ramos' post.

Noel
Title: Re: RPM exhaust installed
Post by: racerrad8 on August 24, 2014, 10:53:00 AM
Quote from: ribbert on August 24, 2014, 06:49:43 AM
Mike (and Randy), that's all good and well but can you give me something a little more technical, like why?  I don't understand. Smoothing out the ride generally means more suspension travel.
It is well documented how the RPM suspension controls the spring oscillation (compression/rebound) much more effectively due to proper shim stack valving and patented technology over any other shock. The valving operation for the fork valves is identical as compared to the rear shock

RPM suspension valving explained (http://www.fjowners.com/index.php?topic=6114.msg53971#msg53971)
Re: Let the fun begin...RPM Rear Shock (http://www.fjowners.com/index.php?topic=7469.msg66801#msg66801)
RPM fork valves explained (http://www.fjowners.com/index.php?topic=7486.0)

There are many more posts about the RPM suspension as well, these are just the most comprehensive.

If you have more suspension questions lets take them over to the appropriate thread list above.

What are you waiting for, you have the RPM suspension parts you need to upgrade your suspension sitting in your garage, bolt that stuff on and you can feel the difference for yourself.


Now back to the proper topic if this thread:

Nope, I have never seen a set of those cans, that is why I was asking about the diameter. Now looking at the picture, what is the center line distance to the bottom or better yet to the point of contact on the other muffler.

Randy - RPM
Title: Re: RPM exhaust installed
Post by: aviationfred on August 24, 2014, 05:20:17 PM
For those that are wanting to reduce the weight of their FJ's. Randy has stated the weight difference of the RPM exhaust over the stock system. A 21.7 pound weight reduction. I already had a Vance & Hines SS2r 4-1 system. The RPM exhaust with the Titanium muffler weighs 7.3 pounds less than the Vance & Hines.

(http://i119.photobucket.com/albums/o145/aviationfred/2b4ffa87-f450-4397-b13b-7ec19c4d5571_zps92b9f8c1.jpg) (http://s119.photobucket.com/user/aviationfred/media/2b4ffa87-f450-4397-b13b-7ec19c4d5571_zps92b9f8c1.jpg.html)

(http://i119.photobucket.com/albums/o145/aviationfred/RPMexhaust_zpsf91975af.jpg) (http://s119.photobucket.com/user/aviationfred/media/RPMexhaust_zpsf91975af.jpg.html)

Fred
Title: Re: RPM exhaust installed
Post by: racerrad8 on August 24, 2014, 07:10:55 PM
Fred,

Thanks for posting the two shots like that, those pictures also illustrate the difference of fitment of the two systems. You can see how low the V&H system is and how tight I was able to get the RPM system.

If you look at the photo below of the system mounted on my bike you can see how everything is tucked nicely within the chin fairing.

(http://i1215.photobucket.com/albums/cc517/racerrad8/003_zps7d58c1ca.jpg~original) (http://s1215.photobucket.com/user/racerrad8/media/003_zps7d58c1ca.jpg.html)

If you look closely at the lower front edge of the chin fairing you can see the two places where my old 4-1 header used to hit it as it hung out the bottom of the chin fairing.

Quote from: aviationfred on August 21, 2014, 09:42:18 PM
If the exhaust does need to come off. It takes longer to remove my lower cowling than it does to remove the exhaust. The complete exhaust is held on with springs.
This was done for all those "anonymous" polishers out there so they can keep them cleaned up really easy...

Randy - RPM
Title: Re: RPM exhaust installed
Post by: Mike Ramos on August 25, 2014, 01:16:02 AM

Re:  RPM. Exhaust (take two)...

To whom it may concern aka to anyone interested in the RPM exhaust/mufflers.

The picture posted by Noel of the bolt that holds the rear of chin fairing seems to be more of a height problem rather than a lean angle issue.  An impact such as pictured and described is often caused by hard acceleration at modest lean angles, causing the rear end to lower and thus impact the tarmac when a bump is incurred.  Really nothing new and the problem is addressed nicely by the updated shock. 

The scraping which I initially described was higher up and more on the side of the chin fairing caused not by impacting the road surface after hitting a bump but when touching down through the turn.  I would not call it unnerving as it was expected and anticipated, although not especially welcome.

It should be noted that my ride height remains almost stock; I have always had the adjustable dog bones and experimented with different ride heights.  Raising the rear changes the geometry & dynamics of the handling; compromising positive aspects of handling qualities inherent in the FJ.  This is one of the benefits the RPM suspension, although the ride height is not raised, there is no dragging of anything.  The exhaust is tucked in nicely (review the pictures and comments of Fred) as is the muffler.

With regards to the suspension from RPM I believe that the travel of the suspension is the same.  Although it may be counter intuitive, the insistence that a softer ride ("smoothing out the ride") somehow means more suspension travel is incorrect.  However this and other technical questions can me answered best by the gentleman from RPM.

I do believe that these are my final comments on this subject so I trust the questions/reservations have been addressed.

Ride safe,

Mike Ramos.

Title: Re: RPM exhaust installed
Post by: ribbert on August 27, 2014, 10:25:42 AM
Mike, you have, amongst other things, accused me of not having a sense of humour. Nothing could be further from the truth, maybe I just didn't get yours, but I'm tuned into it in now and the following is a fine example.

Quote from: Mike Ramos on August 25, 2014, 01:16:02 AM

The picture posted by Noel of the bolt that holds the rear of chin fairing seems to be more of a height problem rather than a lean angle issue.  An impact such as pictured and described is often caused by hard acceleration at modest lean angles, causing the rear end to lower and thus impact the tarmac when a bump is incurred.  Really nothing new................ 

The scraping which I initially described was higher up and more on the side of the chin fairing caused not by impacting the road surface after hitting a bump but when touching down through the turn.  I would not call it unnerving as it was expected and anticipated, although not especially welcome.

Mike Ramos.

In the unlikely event that you were serious and see yourself as the forum forensic scrapeologist, it is presumptuous of you to suggest what I was doing at the time. As Frank would say, you don't have the data. You do not know about my bike, my riding, the roads, the corners, the road surface, the suspension set up, the height, the speed, the throttle position, the load, the lean etc. You can only make such statements about your own experience (ref Frank). If you failed to set up your own machine properly, short of fitting new suspension, you can't assume others have the same problem.

I will take your post in the spirit in which it was offered.



Quote from: Mike Ramos on April 15, 2014, 11:46:19 AM

Ride safe, stay in good humor & keep smiling,

Midget.

I will!

Quote from: Mike Ramos on June 09, 2014, 07:52:27 AM

Keep smiling, remember to laugh at ourselves once in awhile & ride safe,

Midget.

I agree.

Noel