TOP END ON A UNRESTRICTED CB1100

[flynrider]

Guth no concerned this was on a closed course

Stretched her legs for the first time, I didn't lose any body parts no tank slapper just smooth acceleration. 4th gear at 9000 rpm's is 132mph and 5th gear still pulls pretty hard until I buried the speedo at 140. I think the bike can do 150 without question. The bike was as smooth as can be didn't scare me at all. I did have my cut down EX shield which i tucked behind in case it decided to leave me. I did do my air-box mod today and fuel mileage is back up to 54, i think it helped because the bike was running rich.
Came home and gave her hug, did i mention how much a like this bike

Full yoshi exhaust ordered and on its way then down to PA for some dyno time.

Wow. Thanks for being the pioneer, CIP! Given the hp output from the various stock dyno runs, I was expecting a top end more in the neighborhood of 135-140 mph. Do you think the ECU flash is factor here? On the stock dyno runs, power tends to peak around 7300.

[Ridem32_imp]

I will try it got a dragstrip about 15 miles from me
With my new app on my phone with gps I can prove my top speed when I get my ECU back on.

[flynrider]

If one of you "reflashed" guys get near a drag strip, it sure would be cool to know what she'll do in a quarter, I'm convinced the 11.7 that Cycle World recorded was achieved while bouncing off of the speed limiter. I'm thinking this bike is potentially mid to low 11's unrestricted.

I don't think there's any doubt about that. I remember seeing their 0-100 mph times looked really good, but the quarter mile times seemed off. The published terminal speed for the 1/4 mi. run was 110 (IIRC), which is a bit of a hint.

[davidsargee_imp]

Agreed, I thought the e.t. doesn't match the speed as well. The bike was topped out, I wonder for how long? I rode mine today on a fresh oil change, passed a semi on the freeway with a 70mph Roll-on. The bike felt like a rocket, jumped out to 95 in no time, and wanted plenty more. Felt very strong. My old h-2 was really tricked out to run 11.2, but the terminal speed on those runs was usually 118 to 120mph.

Sent from my SPH-L900 using Tapatalk

[the Ferret]

Ridem..your speedo buries at 120. You will have to rely on GPS for top speed

[dBuster_imp]

Now we need a source for a replacement speedometer, one that will go up to say 200 mph...

That way when a cop pulls you over saying you were doing 150 you can correct him and tell him "no actually it was more like 162. You might want to get your equipment calibrated."

Sent from my XT1055 using Tapatalk

[Ridem32_imp]

I got my iPhone ready with my new GPS speedometer app

[rboe]

Cool beans on the speedo, I have not had a GPS on mine yet so it's nice to know. I've "tested" my Griso's speedo against the road side radar speed indicators and its' within a mile per hour of that.

[Red Mist_imp]

CIP57 -

can you tell me what is the mod you did for the bike does 150? thx

Where have you been, man?

Guth no concerned this was on a closed course

Stretched her legs for the first time, I didn't lose any body parts no tank slapper just smooth acceleration. 4th gear at 9000 rpm's is 132mph and 5th gear still pulls pretty hard until I buried the speedo at 140. I think the bike can do 150 without question. The bike was as smooth as can be didn't scare me at all. I did have my cut down EX shield which i tucked behind in case it decided to leave me. I did do my air-box mod today and fuel mileage is back up to 54, i think it helped because the bike was running rich.
Came home and gave her hug, did i mention how much a like this bike

Full yoshi exhaust ordered and on its way then down to PA for some dyno time.

Wow. Thanks for being the pioneer, CIP! Given the hp output from the various stock dyno runs, I was expecting a top end more in the neighborhood of 135-140 mph. Do you think the ECU flash is factor here? On the stock dyno runs, power tends to peak around 7300.

Wow. Thanks for being the pioneer, CIP! Given the hp output from the various stock dyno runs, I was expecting a top end more in the neighborhood of 135-140 mph. Do you think the ECU flash is factor here? On the stock dyno runs, power tends to peak around 7300. +1 on that, thank you very much for going out on a limb and trying this. If you are pulling 140+ that means the bike's top end power has been substantially improved, as it takes a lot of HP to push a big barn door like the CB1100 through the air. I'm not surprised, I've felt for some time the engine was seriously detuned. 88 HP from an 1140? That engine could make 120 HP easily without mechanical mods, methinks.

Now we need a source for a replacement speedometer, one that will go up to say 200 mph...

That way when a cop pulls you over saying you were doing 150 you can correct him and tell him "no actually it was more like 162. You might want to get your equipment calibrated."

Sent from my XT1055 using Tapatalk

I disagree. What we need is a source for "vintage" 85-mph speedometers. Then we could honestly say we didn't know how fast we were going.

[the Ferret]

I disagree. What we need is a source for "vintage" 85-mph speedometers. Then we could honestly say we didn't know how fast we were going.ROFL

I'm thinking Joan Claybrook may have a garage full she isn't using