TC88 Bolt in Cam and stage I Dyno Run : V-Twin Forum: Harley Davidson Forums

JL1173 · 04-29-2008, 05:31 AM

I managed to scan the before Tuning and after Tuning Runs. The numbers are not too bad. You can see the baseline run was too rich. I havent had a chance to see if gas mileage has improved yet. The PCIII map will be on its way as soon as I have time if anyone is interested.

MaineUltraClassic · 04-29-2008, 06:35 AM

I'd set the rev-limiter back to 5500...........no need to run it to 6250 since the power is not gaining anything past 5500.

Steve

JL1173 · 04-29-2008, 04:41 PM

I am not crazy about my torque, it should be higher. I am suspecting I was only tuned well enough. I have been talking to fred eno "Dr dyno" and plan to meet up with him to check the dealerships work. Even though the bike is running perfect which is a relative term. He thinks there is more.

MaineUltraClassic · 04-29-2008, 07:35 PM

When I had my Stage 1 88" dynoed, it showed 72hp and 78tq. That was with Rinehart True Duals, Ness Big Sucker, and a PCIIIusb with my stock 88" motor.

Numbers are hard to go by alone, every dyno reads different, so what you think you should be getting compared to what you are showing on the dyno could be the samething, but the numbers will fool you.

Adding just cams to a 88" motor will not make a huge night/day difference, it will move the powerband a bit, but won't blow your socks off. The compression in a stock 88" is too low to make most cams work well and the heads don't flow as good as they could.

Steve

JL1173 · 04-29-2008, 08:45 PM

Thats exactly what it did. There is definately more power available uphill and in 5th at highway speeds. It smoothed out the top end by shifting the band. I havent had a chance to pull the map off the unit because I dont have a lap top. The dealership dont want to give it up like tuning is a big magical secret. The super sert I was going to go with was not working with the 03ecm so we had to use the PCIII so atleast now I can copy my map. Maybe it will come in handy for someone who has the same set up. I was on your site and see you went with the TW26's I was looking at them. The power comes in at 1800rpm or so. I am trying to steer my buddy into those. He is a solo rider and his bike is stripped down.

ceraaa42 · 05-13-2008, 02:03 AM

As I'm sure you know the exhaust is hurting you some. They do look and sound good though even if kinda loud.

You could put in a .030 head gasket without spending a bunch of money and it should help some. You could also clean the paint out of the ports and combustion chamber, then lap the valves for about $14 bucks for new valve seals. Takes about 4 hours of time and it will also help.

Chris