Who Rode Today?

I rode today but didn’t take pics so I’m posting this one of my first busa that I found on my work computer

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Going with a diesel?
No 6.6 Liter GAS @ 10 K extra it would take 100,xxx miles to pay the difference in fuel by mpg of real world 9.7 for a diesel towing 16,xxx lb vs the gas towing same 16,xxx @ 7 mpg . Also extra expenses of filters / parts for a diesel plus the notorious nightmare history of all Brands engine / Fuel pump issues that can be upwards of 10K to repair . @ 401 hp / 464 Tq it will pull what we want in the 8500 to 12,000 lb range just fine. Our current rig is 48xx empty , and loaded 59xx . The two bikes add 1100 lb when we load them in the truck , and this puts out current half ton 5.3 L GMC at 80% of its max abilities . When the bikes are not with us the truck is low 60% of its tow capacity ( 10,800 lb for our Vin # )
New model is 14,500 bumper pull or 16,800 gooseneck so a 3700 lb gain while the replacement trailer should keep us in the high 60% to low 70% range taking bikes with us in a toy hauler .
My rule of thumb , and many others if your @ 80% of your trucks abilities towing all the time ( not for 1 tow ) then its time to look at a bigger truck / abilities .
 
No 6.6 Liter GAS @ 10 K extra it would take 100,xxx miles to pay the difference in fuel by mpg of real world 9.7 for a diesel towing 16,xxx lb vs the gas towing same 16,xxx @ 7 mpg . Also extra expenses of filters / parts for a diesel plus the notorious nightmare history of all Brands engine / Fuel pump issues that can be upwards of 10K to repair . @ 401 hp / 464 Tq it will pull what we want in the 8500 to 12,000 lb range just fine. Our current rig is 48xx empty , and loaded 59xx . The two bikes add 1100 lb when we load them in the truck , and this puts out current half ton 5.3 L GMC at 80% of its max abilities . When the bikes are not with us the truck is low 60% of its tow capacity ( 10,800 lb for our Vin # )
New model is 14,500 bumper pull or 16,800 gooseneck so a 3700 lb gain while the replacement trailer should keep us in the high 60% to low 70% range taking bikes with us in a toy hauler .
My rule of thumb , and many others if your @ 80% of your trucks abilities towing all the time ( not for 1 tow ) then its time to look at a bigger truck / abilities .
Yep, lots of calculations to be brought into the equation when it comes to hauling stuff....

My neighbor just bought a '20 F350 diesel, it's quite the truck. He hauls around a large duel axle trailer full of electrical stuff for his business. He has a fleet of those big Ford vans with diesels in them.
 
I went for a ride today, I've been tuning my Power Commander using my laptop and increasing the cell values in the 2000 to 4000rpm range at 0 to 2 percent throttle opening.
I've had a lean surge at slow speeds, minimum throttle, upper gears, for some time now, and I've been through my entire fuel system to be sure its not a component fault, even had the injectors tested and ultrasonically cleaned. . they came up like new in great condition.
So I've been incrementally changing the fuel mapping, uploading the revised map to the PC3, and then test riding to note the changes and improvement in the running at cruise throttle openings.

I've also been watching and noting the trip computer's readings, in kms per liter which gives me an idea of how lean or how rich it's running, and I'm not revving it over 5000rpm on these test rides.
I'm quite pleased with the results so far, have eliminated the surge altogether, but it's fuel consumption has increased a little more than I estimated it would.
It really needs to go on a Dyno with an O2 sensor jammed up its Akra to get an accurate idea of AFR and fueling right thru the entire rev range at different loadings. That will happen soon.
I was also able to help a guy pushing his VFR750 Honda uphill to a gas station, he was by himself, and had underestimated the fuel range on the bike, he had just restored the bike to pristine condition and this was it's maiden voyage.
I helped him push it the 500 yards to the gas station, he was very very happy!
He gassed it up, it started and he rode off waving to me.
Another deposit into my Heavenly bank account lol.

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I've had a lean surge at slow speeds, minimum throttle, upper gears, for some time now, and I've been through my entire fuel system to be sure its not a component fault, even had the injectors tested and ultrasonically cleaned.

Is the vacuum tuned across the cylinders? From an imbalance one may be lean and another rich, but the effects of the lean one will be felt, and such manifests at partial throttle. I am unsure but have wondered, if one idles it for a while would a laser thermometer indicate significant temperature differences across the header pipes to verify an imbalance?
 
Is the vacuum tuned across the cylinders? From an imbalance one may be lean and another rich, but the effects of the lean one will be felt, and such manifests at partial throttle. I am unsure but have wondered, if one idles it for a while would a laser thermometer indicate significant temperature differences across the header pipes to verify an imbalance?
Love the avatar wannabe, 'can I have some more sir?' lol.
Maybe this needs to go to the tuning/technical section rather than 'who rode today' but here it is anyway . . .
I've ultrasonically cleaned and balanced the throttle bodies with a vacuum balance gauge set (dial gauges)at idle (1100rpm) and it idles smoothly.
Fuel pressure and rate of delivery tested OK.
I've replaced the MAP sensor (IAP sensor in Suzuki speak) with a good working unit and tested it to eliminate that from being a problem, all the valve clearances are spot on, all the compressions and leak down tests are excellent, I've checked all the vacuum hoses for leaks, all ok. I've tested the TPS sensor for flat spots in it's readings as it sweeps through it's arc, and especiall around the 0-5 % area, all OK.
Re the header pipe temp measurement at idle, that is one thing I haven't done, but will definitely check that now that you've mentioned it.
Thanks for your input my friend, I'll let you know the results.
 
Great pics!!
I love that one of the 'Southern most point', where it says . .
'90 miles to Cuba', yeah, like people are gonna jump in their fizz boats and head on out there to visit and pick up a box of Havana Cigars! :laugh: :laugh: :laugh:
 
No 6.6 Liter GAS @ 10 K extra it would take 100,xxx miles to pay the difference in fuel by mpg of real world 9.7 for a diesel towing 16,xxx lb vs the gas towing same 16,xxx @ 7 mpg . Also extra expenses of filters / parts for a diesel plus the notorious nightmare history of all Brands engine / Fuel pump issues that can be upwards of 10K to repair . @ 401 hp / 464 Tq it will pull what we want in the 8500 to 12,000 lb range just fine. Our current rig is 48xx empty , and loaded 59xx . The two bikes add 1100 lb when we load them in the truck , and this puts out current half ton 5.3 L GMC at 80% of its max abilities . When the bikes are not with us the truck is low 60% of its tow capacity ( 10,800 lb for our Vin # )
New model is 14,500 bumper pull or 16,800 gooseneck so a 3700 lb gain while the replacement trailer should keep us in the high 60% to low 70% range taking bikes with us in a toy hauler .
My rule of thumb , and many others if your @ 80% of your trucks abilities towing all the time ( not for 1 tow ) then its time to look at a bigger truck / abilities .
Hi. My friend Timmy tows 47,000 combined with his Chevy 4500 with a 6.6 Duramax. He has a 52 ft double stack car trailer with living space. Any truck drivers on here? I pulled 740,000 lbs at 20 ft wide and 240 ft long.
 
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