Engine Rebuild 101 - Page 10 - Speedzilla Motorcycle Message Forums
Reply
 
LinkBack Thread Tools Display Modes
post #181 of 211 (permalink) Old 05-08-2008, 01:34 AM Thread Starter
Senior Member
 
gpz11's Avatar
 
Join Date: Oct 2005
Location: Aurora, Il
Posts: 876
Yes, I got the 1/2" or12.7mm one.

Also here is the dyno chart comparing the various dyno runs of my bike.

Top Green line - Original motor, ported heads, Mori airbox, Yosh full system - 134 hp

Next blue line - Freshly built motor, Wiseco pistons, ported heads, Mori airbox, Akro Ti full system - 133 hp

Red line - stock motor, U4 fuel, Mori airbox, Yosh full system - 123 hp

Bottom blue line - stock motor, pump gas, Mori airbox, Yosh full system - 124 hp

If you notice the stock motor with U4 actually made less hp than with pump gas BUT check out the midrange, much better.

We are going to do more after this Friday's practice. I'm not going to be racing this weekend, only practicing.
Attached Images
File Type: pdf RC51 Dyno comparison.pdf (52.1 KB, 662 views)

'07 SV650, '04 FZ1, '02 RC51, '97 XR400, '85 XR4Ti
gpz11 is offline  
Sponsored Links
Advertisement
 
post #182 of 211 (permalink) Old 05-08-2008, 01:42 AM
WSMC #51, CVRA #51
 
dstewart's Avatar
 
Join Date: Sep 2007
Location: Lake Hughes, CA
Posts: 696
Looks like the stock motor with U4 could have benefited from some ignition timing adjustments.
dstewart is offline  
post #183 of 211 (permalink) Old 06-04-2008, 04:24 AM
WSMC #51, CVRA #51
 
dstewart's Avatar
 
Join Date: Sep 2007
Location: Lake Hughes, CA
Posts: 696
Any further Development work?
dstewart is offline  
 
post #184 of 211 (permalink) Old 06-04-2008, 04:55 AM
 
Join Date: Feb 2006
Posts: 393
It was being raced on Saturday. Nice shade of blue, also.
Super Dave is offline  
post #185 of 211 (permalink) Old 06-09-2008, 02:20 PM Thread Starter
Senior Member
 
gpz11's Avatar
 
Join Date: Oct 2005
Location: Aurora, Il
Posts: 876
Nope, I've been concentrating on getting our Moto-ST bike ready for the Road America round. We survived the rain storms and finished. This was our first endurance race and our goal was to finish and not be last. We accomplished both goals!

I have to get with Brian to see when I can get it over there.

Quote:
Originally Posted by dstewart View Post
Any further Development work?

'07 SV650, '04 FZ1, '02 RC51, '97 XR400, '85 XR4Ti
gpz11 is offline  
post #186 of 211 (permalink) Old 08-13-2008, 04:31 AM
WSMC #51, CVRA #51
 
dstewart's Avatar
 
Join Date: Sep 2007
Location: Lake Hughes, CA
Posts: 696
Just curious hows the bike holding up after a few races? Any updates? Did you get the breather res and oil situated.
dstewart is offline  
post #187 of 211 (permalink) Old 08-13-2008, 12:48 PM Thread Starter
Senior Member
 
gpz11's Avatar
 
Join Date: Oct 2005
Location: Aurora, Il
Posts: 876
Unfortunately, not much. However, I am supposed to call my dyno guy today about getting her in there to do the Yosh vs. Akro comparison. He's been stupid busy with his other customers.

I will be running her in the CCS races next weekend at Blackhawk. There is a CCS Team Challenge there so we'll be playing with the SV also.

For the breather, I'm going to fill the existing bottle with foam and see how that does.

'07 SV650, '04 FZ1, '02 RC51, '97 XR400, '85 XR4Ti
gpz11 is offline  
post #188 of 211 (permalink) Old 08-13-2008, 02:41 PM
Senior Member
 
wingnutt's Avatar
 
Join Date: Apr 2005
Location: mound minn.
Posts: 6,304
Send a message via Yahoo to wingnutt
Quote:
Originally Posted by gpz11 View Post

For the breather, I'm going to fill the existing bottle with foam and see how that does.
Mine was installed @ silverback industries where I had the bike tuned. Fred ran A large tube up-to the bottle now located where the stock battery was and the small tube down to the tub.

Are you having issues ?
Attached Images
 


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
"03 RC"
and a new litter
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


I should REALLY wear a condum
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
wingnutt is offline  
post #189 of 211 (permalink) Old 08-14-2008, 01:50 AM Thread Starter
Senior Member
 
gpz11's Avatar
 
Join Date: Oct 2005
Location: Aurora, Il
Posts: 876
Quote:
Originally Posted by wingnutt View Post
Mine was installed @ silverback industries where I had the bike tuned. Fred ran A large tube up-to the bottle now located where the stock battery was and the small tube down to the tub.

Are you having issues ?
Yeah, when we were at Road America, the oil was blowing out of the bottle down the subframe and the frame. The bottle was only about 1/8 full at the time. We just sealed up around the hose and cracked the lid open and it was all good.

I'm going to put some foam in the bottle to keep all the oil inside and not on the frame.

'07 SV650, '04 FZ1, '02 RC51, '97 XR400, '85 XR4Ti
gpz11 is offline  
post #190 of 211 (permalink) Old 07-18-2010, 06:54 PM
Senior Member
 
RC51Stunna's Avatar
 
Join Date: Apr 2003
Location: San Diego, CA
Posts: 3,019
Send a message via AIM to RC51Stunna
Quote:
Originally Posted by wingnutt View Post
Mine was installed @ silverback industries where I had the bike tuned. Fred ran A large tube up-to the bottle now located where the stock battery was and the small tube down to the tub.

Are you having issues ?
Tom, have you had any issues with your Krank-vent?

GPZ, are you still riding the RC?


Stunna


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
RC51Stunna is offline  
post #191 of 211 (permalink) Old 07-18-2010, 07:10 PM
Senior Member
 
RC51Stunna's Avatar
 
Join Date: Apr 2003
Location: San Diego, CA
Posts: 3,019
Send a message via AIM to RC51Stunna
Quote:
Originally Posted by jhord View Post
You'll have to get a little creative if you use a stock airbox. With something like the Durbahn airbox, just use a longer hose off the catch tank into the airbox and fit the Corsa breather valve onto the hose inside, very easy. It works great but first time you shut off the bike with the valve hooked up and it makes this big "squeeeeeeeek" noise as the vacuum in the engine goes away, it will freak you out.
Hey JD,

Can you explain how adding the corsa breather valve to the hose inside the airbox helps?
Seems like it might be a good way to keep the oil-mist out, while allowing the crankcase vent air in, but if you already have a catch tank in place, what is the benefit of this?

View Product

Thanks in advance,

Stunna


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
RC51Stunna is offline  
post #192 of 211 (permalink) Old 07-19-2010, 01:14 PM Thread Starter
Senior Member
 
gpz11's Avatar
 
Join Date: Oct 2005
Location: Aurora, Il
Posts: 876
Quote:
Originally Posted by RC51Stunna View Post
Tom, have you had any issues with your Krank-vent?

GPZ, are you still riding the RC?


Stunna
Well, I've still got it but as for riding it, not too much.

It's time for my 51 to move onto another owner. Hopefully to win another championship for them. So far, everybody who's owned this bike has won a championship with it.

I've got to get it out of the trailer, clean it up, and post up an ad.

Since the rebuild, I've probably only done a handful of races and track days. We were doing more on the endurance bike and I'd just bring the 51 along with to practice on. Well, a few of the other guys have bounced their heads off the pavement too many times and no longer are allowed to race. So even the endurance bikes are sitting. I've got one SV with the engine in pieces ready to go back together with a superbike level engine. Just haven't had the ambition to do it.

'07 SV650, '04 FZ1, '02 RC51, '97 XR400, '85 XR4Ti
gpz11 is offline  
post #193 of 211 (permalink) Old 07-19-2010, 01:41 PM
Senior Member
 
nomo's Avatar
 
Join Date: Jan 2006
Posts: 2,868
Quote:
Originally Posted by gpz11 View Post
Well, I've still got it but as for riding it, not too much.

It's time for my 51 to move onto another owner. Hopefully to win another championship for them. So far, everybody who's owned this bike has won a championship with it.

I've got to get it out of the trailer, clean it up, and post up an ad.

Since the rebuild, I've probably only done a handful of races and track days. We were doing more on the endurance bike and I'd just bring the 51 along with to practice on. Well, a few of the other guys have bounced their heads off the pavement too many times and no longer are allowed to race. So even the endurance bikes are sitting. I've got one SV with the engine in pieces ready to go back together with a superbike level engine. Just haven't had the ambition to do it.
Just like the RC51 in general .
nomo is offline  
post #194 of 211 (permalink) Old 07-20-2010, 12:34 AM
Senior Member
 
Join Date: Jan 2007
Posts: 4,632
Quote:
Originally Posted by nomo View Post
Just like the RC51 in general .
and quite unlike the RC that came before it, lol
mikstr is offline  
post #195 of 211 (permalink) Old 07-20-2010, 02:32 AM
Senior Member
 
RC51Stunna's Avatar
 
Join Date: Apr 2003
Location: San Diego, CA
Posts: 3,019
Send a message via AIM to RC51Stunna
I know exactly how that feels, I haven't been able to ride mine for more than a year now.

Sorry to hear about your decision to let her go, but hopefully someone can bring it back to life and make use of all the good work you did on it.

Have you thought about parting it out?

Stunna

Quote:
Originally Posted by gpz11 View Post
Well, I've still got it but as for riding it, not too much.

It's time for my 51 to move onto another owner. Hopefully to win another championship for them. So far, everybody who's owned this bike has won a championship with it.

I've got to get it out of the trailer, clean it up, and post up an ad.

Since the rebuild, I've probably only done a handful of races and track days. We were doing more on the endurance bike and I'd just bring the 51 along with to practice on. Well, a few of the other guys have bounced their heads off the pavement too many times and no longer are allowed to race. So even the endurance bikes are sitting. I've got one SV with the engine in pieces ready to go back together with a superbike level engine. Just haven't had the ambition to do it.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
RC51Stunna is offline  
post #196 of 211 (permalink) Old 10-13-2010, 04:08 AM
Senior Member
 
whitw wings's Avatar
 
Join Date: Oct 2006
Location: Golden Valley, MN
Posts: 4,805
Entire thread was just read and I have a few questions before my purchase.
Kurt


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
whitw wings is offline  
post #197 of 211 (permalink) Old 05-29-2012, 05:57 AM
Senior Member
 
whitw wings's Avatar
 
Join Date: Oct 2006
Location: Golden Valley, MN
Posts: 4,805
Thread alive with new engine, exhaust and McGyver mods installed. Ducati of MNPLS has it's hands full with me this week!


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
whitw wings is offline  
post #198 of 211 (permalink) Old 05-29-2012, 12:08 PM
Big Thymer
 
bensexcessbikes's Avatar
 
Join Date: Nov 2008
Location: Albany, NY
Posts: 2,100
Quote:
Originally Posted by whitw wings View Post
Thread alive with new engine, exhaust and McGyver mods installed. Ducati of MNPLS has it's hands full with me this week!
I was wondering how long this was going to take.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
bensexcessbikes is offline  
post #199 of 211 (permalink) Old 05-29-2012, 12:49 PM
Senior Member
 
wingnutt's Avatar
 
Join Date: Apr 2005
Location: mound minn.
Posts: 6,304
Send a message via Yahoo to wingnutt
Quote:
Originally Posted by whitw wings View Post
Thread alive with new engine, exhaust and McGyver mods installed. Ducati of MNPLS has it's hands full with me this week!
Kurt the charts before and after will suprise you

I can't wait for you to try and describe the tune

Blackies on exit


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
"03 RC"
and a new litter
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


I should REALLY wear a condum
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
wingnutt is offline  
post #200 of 211 (permalink) Old 05-30-2012, 04:32 AM
Senior Member
 
whitw wings's Avatar
 
Join Date: Oct 2006
Location: Golden Valley, MN
Posts: 4,805
Those damn front mounts have kept the temp below 170 over 20 tuning runs for fuel and timing (pc3r model) and 7 power pulls.

I will throw a pc3usb on between next race and the July race for those interested in the maps were creating for the ladybird exhaust. I wanted to make 2 quality maps for you all to use for these set ups. I would recommend motor work and not just basic bolt on's. I was lucky to find a motor that was built for reliability race SEASON after season on pump 93 octane.

I won't post numbers until it's all smoothed out but man, it's pretty close now!

HRC wiring harness
Yoyodyne slipper clutch
Moriwaki airbox
Wiseco pistons
Cases ported to HRC specs
Transmission undercut by Fast by Gast (up / down)
Falicon Supercrank Cylinders coated by Millennium Technologies
Cylinder heads ported by Alex Fornelli


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
whitw wings is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Speedzilla Motorcycle Message Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome