My review of Daniel Deussen Tuning

Jolly Roger V4 said:

I resemble that remark Steve.....

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Me too haha

Steven31371 said:

Of course they did, but also how much are they nerfing the bike for street ride-ability for the average middle aged Joe that buys these

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I would bet most of the tuning for making a homologated street bike is set around noise and emission constraints, especially when you're making (a claimed) 214 HP with 1103cc from the factory.

bp_SFV4 said:

I would bet most of the tuning for making a homologated street bike is set around noise and emission constraints, especially when you making (a claimed) 214 HP with 1103cc from the factory.

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Yeah for sure, Honda is open about the reason the Fireblade is so nerfed for the US market, and the reason the power kicks in so hard at 8k rpm and it’s so weak below that is specifically because of sound requirements in the US

What really suprises me is the fuel economy being so bad with only 26 degrees of overlap. The 1198 when the cams are timed appropriately have overlap in the 40's but they'll still give 45 mpg at an 80-90 mph cruise. I have to be utterly flogging the 1198 to get it into the 30's on a public road. Part of the issue with the v4's is the need to meet current nox requirements. Stoich gives the best nox. All that fuel aids driveability. The 1198's (and 998, 1098's) were rude as delivered due to the hydrocarbon requirements. Some tuning would fix that (still not all that happy under 3K). In the west we get E10. E10 has a stoich of around 14.1. So all market bikes (which mine is designated as such) are effectively 5% lean as delivered in the US west. Still poor fuel economy. To travel in the US west without gas becoming a pain you need 160-170 a tank typically. The two worse roads are actually shorter about 140 miles (ca 36 and Id 12- lola pass) because they're both all corners with short straights, and more importantly unpatrolled on weekdays. And southern utah hanksville to blanding. On the euro 4 V4's the oxygen sensors have control of fueling to 7500 rpm or 40% throttle opening. So to fix fuel economy at any level you have to turn the sensors off and map. I tried to offset the oxygen sensors but didn't achieve much. And to get the highspeed cruise rpm reasonable the bike is geared 17/36. Still is 6250 in sixth at 100 (or 14500 in 1st). 1198 is 5k at a 100. The only 17 tooth front I could find is from red racing in italy. That's part of the reason I've mapped race 3 (full power) into all race maps. Not such a good idea with the stock 15/42 gearing.

I know, right?!?!?

I must be lucky, mine goes extremely well. No complaints and all the power I could ever need for the street. Even the stock gearing is ok! Id say Ducati engineers got it spot on