| Author | Message | ||
     Duggram |
My question is would switching to a forced air cooling system be an advantage for an 1125 club racer? When I was at the Jan '09 WERA race in Vegas the Latus team was there. Ronnie Sainer, the crew chief told me that when they switched to whatever forced air cooling system they were using, their operating temps dropped 20 degrees. I remember a comment in these forums from Trevor of FlexiGlass that with their side panels you get better cooling and loose 15 pounds by removing the fan system. When you look at the cooling system on the 1125RR (the one I saw was in the Dec RRW), it looks like the radiators are turned sideways (facing airflow). I like the looks of this system and hopefully it’s the same one EBR will be selling. I like the idea of running cooler especially since almost all of my riding is in southern New Mexico. But I want to know what the disadvantages would be for a club racer. | ||
| Esa |
Do you know if it is ok to disconnect the fans if ...say running sprint races? Does it require a resistor plug or something to fool the ECM that the fan units are still connected ? I'm interested in doing this with the stock radiator cover set up....to shave some weight. Also, do know of anybody who sells just the radiator covers in fiberglass ? | ||
| Strongbad |
It is ok to remove them as long as you don't leave the bike idling for extended periods or do a lot of low speed driving with it. The ECM will throw a diagnostic code if they are removed, but it won't affect how the bike runs, it will just show the light and store the code. | ||
| Manxboy |
Duggram. I have two 1125R race bikes, one with stock bodywork and one with the Flexiglass set up. In hot summer temps you will struggle to keep the stock set up below 210 degrees! I would strongly recommend not removing the fans, you get a red flag situation and sit on the grid for a while the temp will be sky high. At a track day @ Jennings in November I could hardly get enough heat in the bike with the Flexiglass setup! It was running around 175 degrees...... This is the setup if it's in your budget. Peak power is made at 185 to 195 degrees. | ||
| Duggram |
Manx, I thought about the scenario where you get caught on the grid idling. Why not hit the kill switch, let it cool while waiting and then restart it? Either the EBR radiator package or the Flexiglass system will be in my budget later this spring. Are the Flexiglass panels easy to setup? Do the radiators stay in the stock position? That's one advantage I see with the EBR/Buell system. Their radiators are mounted perpendicular to the side of the bike. Air goes straight in to the radiators without having to be ducted. Also, do you know if the race ECM will throw the same red light error when the fan is disconnected? | ||
| Strongbad |
The race ECM allows you to enable/disable any of the diagnostics for the bike. Also, the flexiglass bodywork does work much better at speed than the stock flow, however, you will still run very hot if you are idling or doing a lot of low speed driving. The flexiglass is a pain to install, you definately have to take your time and fit everything properly. The radiators stay in basically the same place, but the overflow bottle, BAS, and ECM need to be relocated and a lot of care needs to be taken to shield the hoses from rough fiberglass edges. Besides the work to fit it, the bodywork is very functional and considerably lighter than stock. | ||
| Duggram |
OK, I have the race ECM. The map in it right now came from Dris at Twin Motorcycles (I have the Torque Hammer that Dris sells). Is there a way for me to turn off selected diagnostics without disturbing the map Dris gave me? | ||
| Strongbad |
Yes. What you need to do is open the standard project in PCM Tool and connect to the ecm. Open one of the calibrations that was provided on the CD and then do a receive all. Now save the cal as something else so that you have a back-up in case something gets screwed up. After backing it up, look for the window labeled "Diagnostics". In that window are all of the diagnostic enable bytes, (EDiag), current codes, (CDiag), and historic codes (HDiag). By double clicking on the different EDiag bytes in the work column you can see what diagnostics are available to turn on and off, 1 is enabled and 0 is disabled. Make your changes and send them to the ECM using the "S" key. This ensures that you are only changing the values that you currently have selected and not inadvertently making other changes. When your done, you can save the cal again with a new name so that you have a backup of the new changes as well. Hope this was clear. If not, send me a PM and I'll get you my phone number if you have other questions. | ||
| Duggram |
Nice tutorial! I installed the map on the race ECM last May but your instructions bring it all back to me. Thank you. Some time this weekend or next I'll give this a try. Sounds like it shouldn't be a problem though. Thank you. (Message edited by duggram on January 12, 2010) | ||
| Manxboy |
"Manx, I thought about the scenario where you get caught on the grid idling. Why not hit the kill switch, let it cool while waiting and then restart it?" I'd still leave those fans on Duggram. If you shut an engine off when it's at 210 degrees and turn it back on 5 minutes later, it likely will be at 220 degrees plus, the engine will just "cook" itself whilst turned off. This is were the fans would be doing a good job for you. I think the weight saving of two fan motors would be minimal. As Strongbad said even with the Flexiglass setup a long time idling could be an issue to. Good luck with your racing, and hope to bump in to you somewhere. | ||
| Duggram |
At Arroyo Seco in southern New Mexico, what I consider my home track, you see a lot of those cheap square fans. At first I thought it was for the riders, but they're used on the bikes. I have an extension cord with a three plug end on it that i use for my tire warmers. I'll just plug my fan into it too, and point it at the front of my bike like the others do. Also, like I mentioned before, the Latus team uses either the Flexiglass setup or something like it, and they report cooler running temps. I think I can work this out. We'll see. BTW I'm not so sure I want to go to Florida. Lived there a couple years before I was 10. Don't like your bugs! But if you want to wander over to New Mexico some time, I'd look forward to that. | ||
| Manxboy |
The portable fan is a good idea, also Ronnie @ Latus definitely runs the Flexiglass setup. This setup works good on my bike. Oh also, after a couple of years you get used to the bugs.... |
