Slowest Tuner in Virginia

hombre

Nitrous
Joined
Dec 31, 2006
Messages
1,021
OK, I spent about 6 hours today dyno tuning my IC SC R3 with the new headers on it... and I'm only half way done. I'm actually learning to do the tuning (doing the step tests and fuel changes myself) under the watchful tutelage of our trained tuner. Naturally, my learning process adds to the time, but I never realized before how much 200 Ft Lbs of torque heats an eddy brake up... until it needs a cool down period. Not a bad thing, 'cause the bike needs a cool down period too at the larger throttle openings.

No doubt the numerous fans in the dyno room would be sufficient for "normal" bikes, but big HP & TQ mean big heat... and I been heatin' things up good today! In the small dyno room, the supercharger whine sends chills up my spine... can't hear it when actually riding. I've made some big (to me) addtions to fuel in mid-range thus far... hoping for final results tomorrow.

I'm now officially the "slowest tuner in Virginia"... and unbelievably I had a "spectator" offer me $50,000 for my bike today. Not for sale.
 
hombre, maybe the slowest tuner ( a short lived title I'm sure ), but certainly not the slowest rocket. Befor ya know it, you'll be dynoin' your blue beast in your sleep.. take care and ride safe. xhdskip
 
well hurry up and figure it out, so I can get my cams and come up and have you finish the tune for cams and 3-1 pipe...


 
REGULATOR said:
well hurry up and figure it out, so I can get my cams and come up and have you finish the tune for cams and 3-1 pipe...


Click to expand...

Chad

I won't be tuning your bike even after I learn. You want Dylan to tune your bike... he has the training and certification. I'm using a PC3 to tune mine right now... then Dylan and I will go back with TuneBoy for timing changes.

Give Dylan a bit more time to get more TuneBoy experience... so he doesn't spend time "learning" TuneBoy on your bike.
 
hombre said:
I'm now officially the "slowest tuner in Virginia"... and unbelievably I had a "spectator" offer me $50,000 for my bike today. Not for sale.
Click to expand...

There's no accounting for the people with more money than brains.......
 
Glad to hear you didn't sell your bike, Hombre. Keep up the interesting work.
 
Tuning is not fast, nor easy. A quickie tune is likely only done at WOT, neglecting the load and throttle where the bike spends most of its time. There is a good deal of difference in a quick tune, and a full on mapping job.

It is good to see you spending the time to fully map your forced inducted R3 on an eddy current brake... the results will be worth the effort. Your bike has ventured far from stock, and the stock tuning was not perfect. However, don't expect the final results to be "perfect" at low throttle positions on the road. On the road, the bike is loaded a bit differently than on a dyno - eddy current or especially inertial types.

Later, a couple of hours spent with a wide band UEGO with logging on the road, and the bike will be even better.

Learning a few in's and out's of tuning is always time well spent (and generally a lot of fun). You are well on the road to knowhere.
 
W. Tripp said:
Learning a few in's and out's of tuning is always time well spent (and generally a lot of fun). You are well on the road to knowhere.
Click to expand...

WT, you're way more fun than that other old schooler. As we both know, KNOWHERE is where it's at.

I spent another 6 hours today and I'm still not done, but I do believe 6 hours tomorrow should finish her up. The step tests at higher throttle openings make BIG HEAT, and she's seriously screaming at 7200 RPM. I'm seeing some healthy gains... also chewing some serious Pirelli.
 
Yep, heat and LOTS of it. It takes a good bit of heat and load to leave knurling on the tire like that from the drum on an EC997.

Watch the tire temps and pressures, your tuner should be using an IR thermometer on the bike regularly, have him check the tires as well... if he is not already doing it. Big torque does things that a lot of guys are not used to seeing, and can screw with rpm and load ratios a bit.

What coolant mix are you running? In the summer, I tend to use 25% EG coolant to 75% distilled water and a touch of Water Wetter or 3-4 drops of Soft Soap as a surfactant (breaks down the coolant surface tension and cools more predictably). It also tend to make tuning a bit easier, and still protects against electrolysis and cold temps down to about 15-20˚ F.
 
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