RG3 EPROM - Rev limit - MVAgusta.net
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post #1 of 24 (permalink) Old 09-24-2011, 11:39 AM Thread Starter
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RG3 EPROM - Rev limit

Hi all,

As in earlier post, i switched the standard cans on my 750 out for a set of silmoto's and an RG3 chip last week.

I've had the chance to take it out today, it sounds great, the throttle response seems considerably better, but i have noticed something that i wanted to check with you guys.

I expected it to increase the rev limiter, but I wasnt expecting how much it has - with the standard chip, the shift light came on at 12,200 and limiter kicked in at 12,700 - as is standard, i believe.

With the RG3 chip, the shift light doesn't even start until past 13k, and the rev limiter hadn't kicked in up to 14k, although the shift light was going nuts, and it was still pulling strong - my mechanical sympathy kicked in at this point, as I didnt want a piston in the face.

Whats the score here - what is the RG3 chip supposed to raise the rev limit to?

Thanks
Dale
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post #2 of 24 (permalink) Old 09-24-2011, 12:26 PM
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Hi Dale,I have a 2001 F4750s fitted with RG3's, At the same time I fitted the SPR down pipes which also came with another (identical chip). These were MV Special parts, the paperwork indicated the new chip would suit the exhaust and add 500 rpm to the rev limit.

Mine revs to 13,200 when the rev limiter light comes on and then the hard rev limiter a few rpm higher. I have never seen 14,000rpm indicated, that seems very high.

Regards jimboF4
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post #3 of 24 (permalink) Old 09-24-2011, 12:31 PM Thread Starter
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Hi Jimbo

Many thanks for the quick reply, that was my initial feeling on it. I'm fairly sure it was 14k rpm, although i have to admit, it was a very quick glance at the tacho!

Does your chip look like the following?



If so - im a little confused

Dale
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post #4 of 24 (permalink) Old 09-24-2011, 12:41 PM
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Nope, that is not an MV special parts chip. (But it is ina special parts plastic box) That chip was made by Casoli, an independent MV dealer a while back, think they have ceased trading now.

So not sure what they burned into your chip, if it was around 14k I would say that's a bit too high.


Edited to say does the chip have a paper stick-on label if so peel it back and see whats underneath.

jimboF4

Last edited by jimboF4; 09-24-2011 at 12:51 PM.
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post #5 of 24 (permalink) Old 09-24-2011, 01:00 PM Thread Starter
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Quote:
Originally Posted by jimboF4 View Post
Nope, that is not an MV special parts chip. (But it is ina special parts plastic box) That chip was made by Casoli, an independent MV dealer a while back, think they have ceased trading now.

So not sure what they burned into your chip, if it was around 14k I would say that's a bit too high.

jimboF4
Hmmm, thats an interesting one then, i thought that might have been the case, but wasnt sure if they were burned by Casoli or not.... I know the cans and chip came out of an F4 750 that was being put back to standard to be sold. It seems to run bloody well though, at least the seat of pants dyno feels good.

As i said, it was a glance, but it was definitely over 13.5k

Dale

Edit - it does indeed have a paper label on it - but i've been on the beer since getting back in, so I dont fancy taking the ECU out at the moment
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post #6 of 24 (permalink) Old 09-24-2011, 01:10 PM
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Hi Dale,

Its always beer-o-clock somewhere, wise move to leave the alone for now. I had some dealings with Casoli, they had a shop in north London a while ago, were into Ducati and MV when they launched the F4 750. They used to offer gutting of original exhausts and chips to suit. Even done a big bore kit at one time. Have not heard of them for at least five years now.

Cheers jimbo
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post #7 of 24 (permalink) Old 09-24-2011, 02:35 PM Thread Starter
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Try living in Newcastle mate, its always beer o'clock here

Sounds like I need to find someone with a Casoli chip and compare notes.
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post #8 of 24 (permalink) Old 09-25-2011, 04:12 PM
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Standard chips read 13100 rev limit, the most I have seen on any 750 chip is 13300 from an evo or spr - same limit.

Cheers
Adam



Quote:
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Try living in Newcastle mate, its always beer o'clock here

Sounds like I need to find someone with a Casoli chip and compare notes.
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post #9 of 24 (permalink) Old 09-26-2011, 10:53 AM Thread Starter
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Hi Merc,

Thanks for the update - looks like i will be putting the standard chip back in for the moment, i dont really want to lunch the engine, after all.

Jimbo - the casoli chip doesnt have anything under the label.... did casoli produce a hot chip by any chance - for race bikes or something similar?

Meanwhile, anyone got a legit rg3 / silmoto chip for sale?


Dale

Edit - think it might be a good idea to actually check the standard chip to make sure the rev counter isnt over-reading too......

Last edited by Deequeue; 09-26-2011 at 12:29 PM.
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post #10 of 24 (permalink) Old 09-26-2011, 01:13 PM Thread Starter
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Just been checking the MV FAQ - apparently the 750 Senna had a 13,900 hard limit, with SPR headers and RG3 cans on.
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