Tuning question : GSXR.com Forum : Suzuki GSX-R Forums
 
» Insurance
» Suzuki GSX-R Prices
» Sponsors
Go Back   GSXR.com > Tech > Tech and performance chat.

Reply
 
Thread Tools Display Modes
Old 02-21-2013, 11:17 PM   #1
FastLivin
Squid
 
Join Date: Feb 2012
Location: St. Charles, MO
Posts: 14
Default Tuning question

First off i will start with the bike. Its a 2011 750 with a Yoshi slip-on and a dynojet pc5.

Yesterday i took on the project of cutting off my cat and replacing it with a midpipe. All went well except one thing. Now that the cat is gone, when i first start up the bike the rpms will bounce a little and make the bike sound cammed for the first 20 seconds or so until it warms up a little. I can only assume that means it needs to be re-tuned. I have yet to have a day to ride it on the streets and see how the tune is that way. My question is, being short on money, can i go about tuning it without putting it on the dyno? How would i go about doing that and where can i get that info? Ive google searched for different tunes for the bike and PC but ive come up short handed. Any help would be appreciated. Thanks.
FastLivin is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-22-2013, 12:03 AM   #2
Bry
The Honey Badger
 
Bry's Avatar
 
Join Date: Feb 2010
Location: Tampa, FL
Posts: 11,530
Default

Don't you have the auto-tune for the PC5?
__________________
Quote:
Originally Posted by JohnPaul View Post
buncha fat fawks in here...you dont need a liter bike, you need jenny craig
2011 ZX10R
Akra Full System<>Guhls ECU Flash<>PC5
Yoshi FE<>Puig DB

07 750
Bry is offline   Reply With Quote
Old 02-22-2013, 12:48 AM   #3
Bala
Pro Racer
 
Bala's Avatar
 
Join Date: Jul 2012
Location: Qld Australia
Posts: 2,623
Default

Quote:
when i first start up the bike the rpms will bounce a little and make the bike sound cammed for the first 20 seconds or so until it warms up a little.
Yep mine does that. Educated guessing, the ECU will make the bike run rich as its cold, just like a choke with carbs, as it warms up it leans out to normal idle mixture.

It will run a little different with the cat off but is quite possible it was like it before and that you just did not notice.
__________________
Quote:
Mona is the champ. It's like a tactical hit, bam there it is then gone with out a trace.
Bala is offline   Reply With Quote
Old 02-22-2013, 03:36 AM   #4
Geoffro5
Novice
 
Geoffro5's Avatar
 
Join Date: May 2011
Location: Gold coast Queensland Australia
Posts: 47
Default Tuning question

I love that cammy sound bud.....
Mine does it, K9 750 with a TRC Yoshi slip on, cat eliminated, PCV , K & N air filter , brisk spark plugs and I've had my computer flashed.....
But that sound is awesome, love it....
Oh and I run her on 100 octane fuel..


Sent from Motorcycle.com App
Geoffro5 is offline   Reply With Quote
Old 02-22-2013, 05:28 AM   #5
sic81
Rider
 
sic81's Avatar
 
Join Date: Nov 2012
Location: Hammond,la
Posts: 216
Default

My k4 600 does that too. I only have a k&n and shortened fmf.
sic81 is offline   Reply With Quote
Old 02-22-2013, 08:53 AM   #6
josjera
Pro Racer
 
josjera's Avatar
 
Join Date: May 2011
Location: Central Jersey
Posts: 5,190
Default

did you mess with the set valve at all? If so, there's extra work you need to do on top of that

I also have a 750L1...been researching
__________________
2011 GSX-R 750L1
Quote:
Originally Posted by Kimbroly View Post
hey darth has a mouth.. he just has to reach awkwardly under his helmet.... don't you star wars?
josjera is offline   Reply With Quote
Old 02-22-2013, 12:45 PM   #7
Minh Lai
Novice
 
Join Date: Sep 2012
Location: British Columbia
Posts: 83
Default Tuning question

Geoffro5 where did you find the 100 octane fuel ? I could not see it anywhere


Sent from Motorcycle.com Free App
Minh Lai is offline   Reply With Quote
Old 02-22-2013, 11:26 PM   #8
FastLivin
Squid
 
Join Date: Feb 2012
Location: St. Charles, MO
Posts: 14
Default

I was told the PC5 does have auto tune so maybe the bike just needs to be rode a little bit? And dont get me wrong, i love the cammed sound as well but not if its gonna cause the bike to run in any way that it shouldnt lol
FastLivin is offline   Reply With Quote
Old 02-23-2013, 03:57 AM   #9
GIX7FIDDY
Rider
 
Join Date: Dec 2006
Location: Memphis, Tn
Posts: 395
Default

Quote:
Originally Posted by FastLivin View Post
I was told the PC5 does have auto tune so maybe the bike just needs to be rode a little bit? And dont get me wrong, i love the cammed sound as well but not if its gonna cause the bike to run in any way that it shouldnt lol
is the auto tune installed on the bike at the moment?
__________________
BMC, M4, TRE, F/R SS brake lines, -1, bazzaz afm

Old: 01 750
New: K6 1000
GIX7FIDDY is offline   Reply With Quote
Old 02-23-2013, 09:53 PM   #10
FastLivin
Squid
 
Join Date: Feb 2012
Location: St. Charles, MO
Posts: 14
Default

Quote:
Originally Posted by GIX7FIDDY View Post
is the auto tune installed on the bike at the moment?
The PC is installed already but not an auto tune. When i was told about it, i was under the impression that the PC had auto tune built into it. I didnt think that was true but it could be.
FastLivin is offline   Reply With Quote
Old 02-24-2013, 06:30 AM   #11
GIX7FIDDY
Rider
 
Join Date: Dec 2006
Location: Memphis, Tn
Posts: 395
Default

Quote:
Originally Posted by FastLivin View Post
The PC is installed already but not an auto tune. When i was told about it, i was under the impression that the PC had auto tune built into it. I didnt think that was true but it could be.
the auto tune is a seperate peice of hardware that works with the pcv. you will need to purchase it if you don't have it.
__________________
BMC, M4, TRE, F/R SS brake lines, -1, bazzaz afm

Old: 01 750
New: K6 1000
GIX7FIDDY is offline   Reply With Quote
Old 02-24-2013, 08:59 AM   #12
pswamp605
Pro Racer
 
pswamp605's Avatar
 
Join Date: Oct 2008
Location: SE GA
Posts: 3,666
Default

As said, the auto tune is separate, you will need to have a bung welded into the exhaust and then hook that up to the pc5. It measures the air gas ratio in the exhaust and adjust accordingly.

You can go to power commander.com and download tunes for your bike. All you need is the computer and a mini USB cord.
__________________
06 1000
5.69@128.9
8.90@155

....zoom zoom bishes
pswamp605 is offline   Reply With Quote
Old 05-06-2013, 05:13 PM   #13
Geoffro5
Novice
 
Geoffro5's Avatar
 
Join Date: May 2011
Location: Gold coast Queensland Australia
Posts: 47
Default

I'm in Australia in south east Queensland and I get the 100 octane fuel from two servos , one at mudgereebah at the other in terranorra in northern NSW......! My bike loves it


Sent from Motorcycle.com App
Geoffro5 is offline   Reply With Quote
Old 05-07-2013, 08:40 PM   #14
Minh Lai
Novice
 
Join Date: Sep 2012
Location: British Columbia
Posts: 83
Default

I think my gsxr loves 100 too but can't find it anywhere in north america


Sent from Motorcycle.com Free App
Minh Lai is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 01:57 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2007 2008 GSXR.com
Motorcycle News, Videos and Reviews
Honda Grom Forum Harley Davidson Forum Honda 600RR Kawasaki Forum Yamaha R6 Forum Yamaha FZ-09 Forum
1199 Panigale Forum Roadglide Forum Honda CBR1000 Forum Vulcan Forum Yamaha R1 Forum Yamaha R3 Forum
Ducati Monster Forum Harley Forums Honda CBR250R Forum ZX10R Forum Star Raider Forum Yamaha Viking Forum
Suzuki GSXR Forum V-Rod Forums Honda Shadow Forum Kawasaki Motorcycle Forum Star Warrior Forum KTM Duke 390 Forum
SV650 Forum BMW S1000RR Forum Honda Fury Forum Kawasaki Versys Forum Drag Racing Forum Ducati 899 Panigale Forum
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes BMW NineT Forum
Volusia Forum BMW F800 Forum Triumph 675 Forum MV Agusta Forum HD Street Forum Suzuki GW250 Forum
Yamaha Motorcycles Victory Gunner Forum Honda Vultus Forum HD LiveWire Forum