Gen 2: 2006-2007 New Turbo Project - Page 20 - Kawasaki ZX-10R.net
 35Likes
Reply
 
LinkBack Thread Tools Display Modes
post #191 of 197 Old 10-02-2017, 01:45 PM Thread Starter
GP Star
 
SpazOnaZX's Avatar
 
Join Date: Jul 2006
Location: S.V. Arizona
Posts: 2,628
Posting Frequency
        
Race Wars!

So, I got out to Race Wars first 1 mile pavement event last weekend. Race Wars is a group that has been doing 1/2 mile roll racing for a few years, almost exclusively in Arizona if I'm not mistaken. This event was held at Springerville's Municipal Airport in Arizona... about 7000' up in the White mountains.

The event was nice... mostly cars, and around 10 bikes. The S1000RR and the Hayabusa were well represented, and a couple of Kawi's to boot. The event was both 1/2 mile side-by-side roll racing AND 1 mile standing start. The runway was super nice out to the half mile, and then a little choppy from the 1/2 to the 1 mile. Shutdown was a little tight at 2700 feet long after the mile, but it turned out to be a non-issue with the headwind helping matters there.The weather was clear, bright, with absolutely evil headwinds that averaged a SUSTAINED 20-30 mph by the middle of the day. The real fun was the density altitude clocking in at a cool 9400+ feet, with temperatures nicely in the 70's.

Sadly, it didn't all go exactly according to plan. I had to do a few control passes to 'license up' before I could run the full mile flat out, one pass with an exit speed in the 140-160 range, and then one pass with an exit in the 160-180 range. Those two went well enough at 160.2 (oops) and 178.6, but the bike was getting alarmingly lean... at one point it was 13.0:1-13.2:1 at 13psi! Freaked out by that I turned on the closed-loop control above 7psi and aimed for 11.5:1 and when out to do a full blast. The following pass had a 26mph steady headwind and it went 182 in the half mile... got onto a choppy part of the runway after that, and ended up off the ground over one spot at over 190mph! Granted it was only a couple inches, but the air gets up under the fairing at that speed and it is really spooky. Trying to get back on the throttle in the choppy section after landing just resulted in back-to-back headshake and one sloppy shift, so I aborted the run and went back to check datalogs. The AFR's were in the 12.0-12.2 range, but the injector duty cycle was in the 98% range and the closed-loop correction was maxed out. After the initial "WTF?!?" wore off I brought up the fuel pressure curve and found the culprit: 30psi of fuel pressure at peak boost (13-14psi), and it was an inverse line with duty cycle even with a 1:1 regulator in the system. Verdict: fuel pump or filter was toast, and my fun was over.... and very, very lucky not to have a lunched motor. I'd like to thank ceramic coated tops of pistons and water injection for that little miracle, because it sure in the hell wasn't 91 octane pump gas helping me there.

Overall I was a little bummed, but 180+ half miles speeds in that headwind on a street legal, stock wheelbase, pump gas, 11 year old bike built & ridden by some loon in his garage cheered me up pretty good. I think with some arm and no wind that I might be able to build a 200mph, HALF MILE street machine.... I guess that's next years goal for the 10R. :)
GreenOne and thundercoupe9 like this.

Attack life... it's going to kill you anyway.

Last edited by SpazOnaZX; 10-02-2017 at 01:48 PM.
SpazOnaZX is offline  
Sponsored Links
Advertisement
 
post #192 of 197 Old 10-04-2017, 05:58 AM
GP Star
 
thundercoupe9's Avatar
 
Join Date: Apr 2012
Location: ST. LOUIS
Posts: 2,056
Posting Frequency
   
Good job loon hahahahaha.
SpazOnaZX likes this.

Last edited by thundercoupe9; 10-04-2017 at 06:09 AM.
thundercoupe9 is offline  
post #193 of 197 Old 10-04-2017, 03:08 PM Thread Starter
GP Star
 
SpazOnaZX's Avatar
 
Join Date: Jul 2006
Location: S.V. Arizona
Posts: 2,628
Posting Frequency
        
HaHa! Turbos are a blast... with any luck I can get this fuel delivery SNAFU re-worked before the end of the month... there are two open records (with 179 & 181 minimums) out at El Mirage I'd like to go smash. :)

Attack life... it's going to kill you anyway.

Last edited by SpazOnaZX; 10-04-2017 at 03:17 PM.
SpazOnaZX is offline  
 
post #194 of 197 Old 10-04-2017, 06:11 PM
GP Star
 
thundercoupe9's Avatar
 
Join Date: Apr 2012
Location: ST. LOUIS
Posts: 2,056
Posting Frequency
   
Quote:
Originally Posted by SpazOnaZX View Post
HaHa! Turbos are a blast... with any luck I can get this fuel delivery SNAFU re-worked before the end of the month... there are two open records (with 179 & 181 minimums) out at El Mirage I'd like to go smash. :)
Get er done, just keep the shiny side up.
thundercoupe9 is offline  
post #195 of 197 Old 10-17-2017, 04:20 PM Thread Starter
GP Star
 
SpazOnaZX's Avatar
 
Join Date: Jul 2006
Location: S.V. Arizona
Posts: 2,628
Posting Frequency
        
Gratuitous photo op

...snagged a couple of cool shots off the Race Wars FB page from the event... one starting line shot and one half mile shot. Credits to the photographer; they look good. :) The action shot is probably closer to 2500 feet out, so about 170 mph... but the front end is (still) just skimming the ground at 11ish psi.
Attached Thumbnails
Click image for larger version

Name:	Artsy Springerville shot.jpg
Views:	10
Size:	365.8 KB
ID:	405585   Click image for larger version

Name:	Springerville run.jpg
Views:	10
Size:	137.0 KB
ID:	405593  
GreenOne and Capncalyx like this.

Attack life... it's going to kill you anyway.
SpazOnaZX is offline  
post #196 of 197 Old 10-17-2017, 04:28 PM
GP Rider
 
Capncalyx's Avatar
 
Join Date: Nov 2011
Location: Indianapolis
Posts: 1,877
Posting Frequency
Images: 1
    
Good stuff man! Didnt you have a funky front fender you were going to run out there? IM too lazy to go back through the thread to look lol.

GenII Repped!

*Official winner of one Riflemans 1/5 insert

Every fortress falls, it is not the end. It aint if you fall, its how you rise that says who you really are.
- QOTSA

"if you want to be told today to fk off let me no I can help"
- Peter
Capncalyx is offline  
post #197 of 197 Old 10-17-2017, 06:25 PM Thread Starter
GP Star
 
SpazOnaZX's Avatar
 
Join Date: Jul 2006
Location: S.V. Arizona
Posts: 2,628
Posting Frequency
        
Quote:
Originally Posted by Capncalyx View Post
Good stuff man! Didnt you have a funky front fender you were going to run out there? IM too lazy to go back through the thread to look lol.

GenII Repped!
I do! But I honestly didn't get enough runs in to start testing it.... by the time I got the OK to go balls out the fuel filter had gone tits up. In truth, I'll have to work on that fender a bit... it's not legal for most of the class racing I'm in, and it hits everything with the bike lowered in street trim.... more work to do there!

Attack life... it's going to kill you anyway.
SpazOnaZX is offline  
Sponsored Links
Advertisement
 
Reply

Tags
diy, fast, megasquirt, tuning, turbo

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki ZX-10R.net 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









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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