Overheating With Cozey Map

Yesterday my temp reached 154 with the therm light flashing, this is the hottest the bike has been since owning it and daily riding it for 6 months (03 vtec). I live in phoenix (hot) and during my daily commute home the bike normally runs in the 235 ish range. Yesterday it was around 109 outside and instead of just cruising, I was keeping the rpm's in the vtec range getting through traffic (I love the sound of my LV).
After 20 mins of this she overheats. Right away I bring it up a gear and lower the rpms and the temps drop back in the ok range. After it dropped back into the 230's I brought the rpm's back up again and the temps start going up.
Last weekend I did load Cozey's map into my PC.
Otherwise the bike runs great with this map, I just cannot get on the bike in afternoon traffic. I do not want to switch back to my old map as the power delivery is not as smooth (twitchy); however it does not overheat with it.
Has anyone else had overheating issues with this map?

It's 109 degrees out, you're thrashing it in traffic, and the engine overheats? It sounds like you're just asking too much of your poor viffer in the heat.

Runnig in traffic with temps over 85� I keep the rpm's down in the 4 to 5K area, and it still wants to stay near 220�...... where as normally I'd stay above 5k if I'm going at least 55mph...... You might want to check/change water and same with the thermostat.

Yeah maybe im expecting too much, however I did not have the issue with the previous map. This weekend Im going to put new fluid in with water wetter and check the therm to see if that helps.

[image: View Post]Monk, on Aug 19 2009, 09:35 AM, said:

Runnig in traffic with temps over 85� I keep the rpm's down in the 4 to 5K area, and it still wants to stay near 220�...... where as normally I'd stay above 5k if I'm going at least 55mph...... You might want to check/change water and same with the thermostat.

Mine heats up really fast down here (MS) in any kind of stop/start traffic. Even on hot days with all the humidity getting into VTEC much will make the temps go up.

I rode Monday night and at the one light I hit temps ran up to 210 by the time the light turned green. After a few miles went back down.

You might want to PM Cozey, and see what he has to say about it.....

I doubt Coyze's map has anything to do with this problem as it Richens almost every aspect of the Map and more fuel equels cooler running not hotter! Stock maps are nitoriously Lean contributing to higher engine temps in general. :blush:

I would look to the T-stat as others mentioned for your solution. :cool:

I think I know why it is running hotter with Cozye's map.

My guess is that you're so happy with the better throttle response and VTEC transition, that you're running more RPM's than you were with the stock map!

Seriously...

[image: View Post]Baileyrock, on Aug 19 2009, 11:24 AM, said:

I doubt Coyze's map has anything to do with this problem as it Richens almost every aspect of the Map and more fuel equels cooler running not hotter! Stock maps are nitoriously Lean contributing to higher engine temps in general. :blush:

I would look to the T-stat as others mentioned for your solution. :cool:
Aren't You suppose to be riding the Rockies, or do you have your PC mounted......... :biggrin:

I think you are right, it is alot more fun to ride now and it sound really nice in vtec so I tend to leave it there as much as possible.... ;p

[image: View Post]Ryanme17, on Aug 19 2009, 10:52 AM, said:

I think I know why it is running hotter with Cozye's map.

My guess is that you're so happy with the better throttle response and VTEC transition, that you're running more RPM's than you were with the stock map!

Seriously...

Yesterday in DC

100 degress ambient
+or- 110 asphalt temp

In stop in go traffic, it went up to 144 and stayed there

Once moving, varied between 120-133

[image: View Post]Baileyrock, on Aug 19 2009, 10:24 AM, said:

I doubt Coyze's map has anything to do with this problem as it Richens almost every aspect of the Map and more fuel equels cooler running not hotter! Stock maps are nitoriously Lean contributing to higher engine temps in general. :blush:

I would look to the T-stat as others mentioned for your solution. :cool:

Depends on what map was in the PCIII before, it may have been richer then the Coyze map. Changing to the Coyze map may have actually leaned it out from previous settings. After all, it didn't seem to run that hot before changing the map, .....or so it seems.

I was using the "M111-008 LeoVince slip-ons (sound insert removed), Stock or aftermarket air filter " map from the pc site.

[image: View Post]coderighter, on Aug 19 2009, 01:22 PM, said:

[image: View Post]Baileyrock, on Aug 19 2009, 10:24 AM, said:

I doubt Coyze's map has anything to do with this problem as it Richens almost every aspect of the Map and more fuel equels cooler running not hotter! Stock maps are nitoriously Lean contributing to higher engine temps in general. :blush:

I would look to the T-stat as others mentioned for your solution. :cool:

Depends on what map was in the PCIII before, it may have been richer then the Coyze map. Changing to the Coyze map may have actually leaned it out from previous settings. After all, it didn't seem to run that hot before changing the map, .....or so it seems.

[image: View Post]rosshh, on Aug 19 2009, 01:29 PM, said:

I was using the "M111-008 LeoVince slip-ons (sound insert removed), Stock or aftermarket air filter " map from the pc site.

[image: View Post]coderighter, on Aug 19 2009, 01:22 PM, said:

[image: View Post]Baileyrock, on Aug 19 2009, 10:24 AM, said:

I doubt Coyze's map has anything to do with this problem as it Richens almost every aspect of the Map and more fuel equels cooler running not hotter! Stock maps are nitoriously Lean contributing to higher engine temps in general. :blush:

I would look to the T-stat as others mentioned for your solution. :cool:

Depends on what map was in the PCIII before, it may have been richer then the Coyze map. Changing to the Coyze map may have actually leaned it out from previous settings. After all, it didn't seem to run that hot before changing the map, .....or so it seems.

The map you were running before was leaner in most areas, so the Coyze map should NOT have "caused" the problem. Like Baileyrock said double check the T-state on top of the other things you mentioned trying.

Thanks for the help, I will replace the tstat first.

[image: View Post]coderighter, on Aug 19 2009, 01:44 PM, said:

[image: View Post]rosshh, on Aug 19 2009, 01:29 PM, said:

I was using the "M111-008 LeoVince slip-ons (sound insert removed), Stock or aftermarket air filter " map from the pc site.

[image: View Post]coderighter, on Aug 19 2009, 01:22 PM, said:

[image: View Post]Baileyrock, on Aug 19 2009, 10:24 AM, said:

I doubt Coyze's map has anything to do with this problem as it Richens almost every aspect of the Map and more fuel equels cooler running not hotter! Stock maps are nitoriously Lean contributing to higher engine temps in general. :blush:

I would look to the T-stat as others mentioned for your solution. :cool:

Depends on what map was in the PCIII before, it may have been richer then the Coyze map. Changing to the Coyze map may have actually leaned it out from previous settings. After all, it didn't seem to run that hot before changing the map, .....or so it seems.

The map you were running before was leaner in most areas, so the Coyze map should have "caused" the problem. Like Baileyrock said double check the T-state on top of the other things you mentioned trying.

[image: View Post]rosshh, on Aug 19 2009, 02:49 PM, said:

Thanks for the help, I will replace the tstat first.

Check the Tstat before you replace it. It is located in the bottom of the V of the engine, and is a huge PITA to get to.

Let your bike warm up to 150-160 degrees F and feel the lines running to the radiators. If they are cool, you don't need to replace the Tstat, if they are hot, you do.

Checked the lines and they are cool, yesterday it did not go above 239 on the commute but I took it a little easier. I guess when its hot out I just need to lay off of it a bit. :dry:

[image: View Post]Ryanme17, on Aug 19 2009, 07:41 PM, said:

[image: View Post]rosshh, on Aug 19 2009, 02:49 PM, said:

Thanks for the help, I will replace the tstat first.

Check the Tstat before you replace it. It is located in the bottom of the V of the engine, and is a huge PITA to get to.

Let your bike warm up to 150-160 degrees F and feel the lines running to the radiators. If they are cool, you don't need to replace the Tstat, if they are hot, you do.

[image: View Post]rosshh, on Aug 20 2009, 08:08 AM, said:

Checked the lines and they are cool, yesterday it did not go above 239 on the commute but I took it a little easier. I guess when its hot out I just need to lay off of it a bit. :dry:

If your cooling system isn't performing up to par, check out this thread with lots of options:

http://www.vfrdiscus...;hl=overheating

There are a lot of different factors, even the wrong oil could make a difference...