F4 750 water pump upgraded or not? - Page 3 - MVAgusta.net
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post #21 of 29 (permalink) Old 08-18-2018, 06:41 PM
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Quote:
Originally Posted by theknurl View Post
Ibgarrow;
Skip the silly fan mods, go to the source of the problem.....
The ECU.....just get a chip from Adam (merc07)
Fans come on earlier
Entire EBS system is eliminated
You'll get real fuel and fuel and ignition maps

All for the price of a chip

A twin radiator F4 has 40% more radiator core volume than a Ducati making the same or more power

Greetings theknurl,

How much is this ECU? I was offered a second hand Microtec ECU for £1000 from Chris at XBikes, but I didn't have the cash at the time, also I would of needed to pay for the dyno set up on top.

The reason why I prefer a manual fan over a lower temp to come on ECU setting is it gives me complete control including allowing for the weather.
Using the ECU what temp would you set for the fan to come on? On a reasonable day in the UK my F4 is running at about 72C I think. It will get hot very quickly in traffic/slow speed, and I have found it keeps a lot cooler for longer if I put the fan on before the Temp even starts to rise. If I let it get to 80C then put the fan on it struggles to cope and the temps remain higher for a lot longer.

My main concern is in trying to stop further heat damage to my fairing, or at best slow it down. What I wonder is the real temperature difference in the the fairing with the trapped hot air and the exhaust down pipes(which are very close to the body work in places) when the engine is showing 72C and say 82C when it's starting to get hot. I would guess even though I don't know that it is a lot more than the 10C difference between the 2 temps I stated.

Another aspect I like about the manual fan switch is it is a very cheap and easy mod that gives excellent results. But you are not as you say getting the best fuelling and maps that a top rate ECU set up can give. As Chris at XBikes informed me when he tried to improve my PCIII set up on the dyno "I am limited what I can do with this"

Last edited by MVBERT; 08-18-2018 at 06:53 PM.
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post #22 of 29 (permalink) Old 08-18-2018, 07:05 PM
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Thumbs up ?

MVBERT;
It's not an ECU, just the chip that goes into a 1.6M ECU....
Contact Adam (merc07) for more info

The fans on my '08 Brutale 910R come on at 85C and the bike will NOT go over 92C period.


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post #23 of 29 (permalink) Old 08-19-2018, 06:41 AM
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@MVBERT: The PC!!! is limited to only adjusting the fueling A/F mix. That will not help the heat issue.

The heat issue is exacerbated by improper ignition timing. The chip from merc07 can change this. Adding the reduced fan on temperature improves things without great expense.

This has been discussed many times in the Performance section of the forum.

Here is the main link to Merc07's discussion: https://www.mvagusta.net/forum/21-cu...-software.html
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post #24 of 29 (permalink) Old 08-19-2018, 07:32 AM
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Quote:
Originally Posted by theknurl View Post
MVBERT;
It's not an ECU, just the chip that goes into a 1.6M ECU....
Contact Adam (merc07) for more info

The fans on my '08 Brutale 910R come on at 85C and the bike will NOT go over 92C period.

Thanks for the info the Knurl.

Chris from XBikes explained the poor ignition timing adding to the heat issue, but I don't think he mention that he could flash the chip in my ECU, but may be I forgot, could give them a ring as they are 30 mins from me. If I remember correctly I think it may lower engine temps by 5C, which would be a fair help.

You Brutale has an 'enormous' benefit when it comes to the fans and heat, you have no fairing trapping the heat, or getting damaged by it. I don't even like my F4 to get to the temp you set your fans to come on at.
I have included two pics of F4 belly pans for sale on ebay with heat damage, I have seen many F4's like this. In fact I consider it to be normal over time unless you make a real effort. The belly pans takes the brunt of the damage. But the side panels can take a hit, in certain places.
I just bought a spare belly pan for £80 on ebay that needs professional repairs, there is an excellent spray shop 20 mins from me. I will play with different heat shields and glue this time.
So far my best efforts have slowed down the damage a lot but not halted it. One endeavours to persevere in this regard.
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Last edited by MVBERT; 08-19-2018 at 07:34 AM.
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post #25 of 29 (permalink) Old 08-22-2018, 08:03 AM
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Good luck man. Mine has started again. I ceramic coated and wrapped the exhaust headers, installed new heat shield and overlapped alittle on the fairing join and 8k later it was showing signs of heat damage again. These things look great, but what a shit design feature.

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post #26 of 29 (permalink) Old 08-22-2018, 08:16 AM
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...but you haven't fixed the timing issue...

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post #27 of 29 (permalink) Old 08-23-2018, 07:40 AM
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Well I had Adam write me a new chip also.

2000 F4 750
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post #28 of 29 (permalink) Old 08-23-2018, 07:48 AM
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Hmmm, that should have helped the timing issue.

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post #29 of 29 (permalink) Old 08-23-2018, 05:19 PM
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Overall the bike is alot cooler. Still nowhere as cool as a jap bike. I think it is just how close the right side headers are to the plastics on an early 750 that it is almost impossible not to have an issue with the plastics.

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