smoothrideronli

Stock rear tire pressure for the rear Dunlop on my 2008 CBR1000RR is 42 psi. Doesnt that seem a bit high? I havent really experimented with different tire pressures just yet, but I never saw a stock pressure that high.

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ConqSoft

Yep, that's correct. Been that way since the 929.

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smoothrideronli

Never noticed that...I always ran between 32 and 36 in the rear.

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phobe

Stick with that on the street. Bit lower for the track.

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ConqSoft

On my 929 I ran 42 rear, 35 front and got 10k miles out of a set of BT010's

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smoothrideronli

Not really concerned with longevity, more concerned with grip.

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SheepOfBlue

I ran 36/42 last weekend. I never felt a bit of slip. Sure I could have slid the rear a bit if I wanted to uber speed but the street is not the place for that. I have found at the extremely slow sheep grazing speed (vs the just slow track graze velocity) that the RR has plenty of grip with lots left over. I am even fixing to mount a set of Avon tires to test them. I would give up a bit of grip for significant mileage gains and have heard good things on the old Avons.

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jose_jimenez

Sticky for the street, and still safe for potholes/road irregularities, etc, is 34 in the front, 36 in the rear. It's what a lot of guys use. 36/42, like conq said, has been that way since the 929. That is the mfr rec'd pressure, but it's also meant for liability reasons, IE 2 up riding.

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jose_jimenez

Also, smooth, seems as if the reported problems with the new blade have been hearsay.
Clutches are working great, and stock cranks are fine. The 10,200 RPM power ceiling is a EPA noise issue. Won't be long now until EDR or someone else figures how how to add that missing power back and you'll be close to 165 RWHP. EDR thinks 180RWHP with a full system, and custom map or close to there. That is pretty amazing on a stock motor, with reliability. That is what colin's VTR was making at the rear wheel when he won the deal in 2002.

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phobe

Really, you mean it isn't a steaming ugly pile?

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jose_jimenez

It ain't that good to look at by a long stretch but I don't ever recall making comments about anything but looks Herman

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luvtolean

Funny how subjective looks are.

It's my favorite since the 954...but my lady hates it.

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phobe

To me the look is purposeful... no fluff, no tackiness. The anti-Kawi

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luvtolean

Exactly. No flash...but it looks so damned serious.

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Someone needs to present the facts and the physics rather than just the rhetoric. Poor old Carmelo doesn't understand the physics of a motorcycle. - Jerry Burgess, on spec tires and changing engine rules

jose_jimenez

Probably, it's definitely function over form. And it did look like ass in the initial pics, for some reason it doesn't photograph well at all. They had one in my local stealer, the red/black one, on a stand with a dummy on board, and it looks the business so I concede

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smoothrideronli

Never was worried about the alleged problems...more about the missing top end horsepower. As far as the EPA noise issue I am not sure I buy that one...if EPA measures noise at half of peak power RPM it would be measured at about 5000-5300RPM. My exhaust valve opens and gets noticablye louder at 4000RPM. Either way my biggest concern is getting the power back, not too concerned with why they did it.

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jose_jimenez

Here you go dude.

American Honda Issues Statement Regarding State Of Tune Of U.S.-Market CBR1000RR News Article // RoadracingWorld.com

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luvtolean

I have to wonder if the EPA pushed them to this "solution".

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Someone needs to present the facts and the physics rather than just the rhetoric. Poor old Carmelo doesn't understand the physics of a motorcycle. - Jerry Burgess, on spec tires and changing engine rules

jose_jimenez

Who knows. There are people racing these bikes with no ill effects so I think the bike is good. Timdog from another site is a reputable engine builder in the biz in England. He said at the NW200 and TT, nobody had any problems. Looks like the bike is the real deal. Various tuners are trying to crack the ECU to try and get the missing 10 HP back.

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luvtolean

I was referring to noise only, I doubted the crank thing very much from the beginning.

"Cracking" the ECU is much harder to do, and will be done to less bikes, than taking a pig muffler and tossing it in the trash.

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Someone needs to present the facts and the physics rather than just the rhetoric. Poor old Carmelo doesn't understand the physics of a motorcycle. - Jerry Burgess, on spec tires and changing engine rules

Shenders1

This may have been discussed earlier, apologies if so - But do we know if Honda accomplished this purely through ECU trickery, or if the US-spec bike has hardware differences (cams, etc).

ccwilli3

it just needs a stronger powerband, that's all.

if the 2004-2005 and 2006-2007 CBRs are any indicator, I would point to ECU shenanigans as the source of the reduction.

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TCD

It's time to go back to carbs...

jose_jimenez

ECU. They changed the timing.

Someone will sort it out soon, Dynojet has, for the most part, you just have to buy a PCIII and the ignition module. And that is more of a band-aid way of fixing it. DK or someone else will sort it out, bike has only been here in the states for a few months.

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luvtolean

Ew.

Part of the reason I bought the 929 was FI...

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TCD

Yeah, me too. I was just thinking it would be easier to get the performance back from a machine with them. As the ECU's get more complicated, it will be more difficult to get around B.S. like this. Of course, there will usually be the aftermarket but that is never guaranteed.

TCD

Also, I was taking a stab at "Electronics are ruining motorcycling".

phobe

Wouldn't it have made more sense to tune a soft spot at 6000RPM rather than castrate the top end? I guess this way gives them some "free" horsepower to beef the stats of the 2010 evolution.

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