Trip to see the Wizard

[GoSlo]

Back up to 100 by the weekend, but the rain is done. pepper

Your rain is gone because you sent it up to Colorado and we're drowning in it. Over the last three days, we've gotten the equivalent of a full year's worth of moisture (6"-14" depending on where) and in some places more than that. Hope that heat you've got now works it's way up here to help dry things out a bit.

 

[PIGGI]

Your rain is gone because you sent it up to Colorado and we're drowning in it. Over the last three days, we've gotten the equivalent of a full year's worth of moisture (6"-14" depending on where) and in some places more than that. Hope that heat you've got now works it's way up here to help dry things out a bit.

Sorry bout that, we'd gladly swap weather with you. We only got half the rain we need for the year. :gah:

 

[Lizard]

For a short while.
How is the "heat" down your way?
Dennis

If you decided to get rid of the PV, I might be interested.

 

[seabiz]

That's a good testament to the SE254E cam Dennis. A butt load of bottom end torque that just doesn't quit like most torque cams and it is a qualified HD part that can be installed by every Harley Dealer without busting up your warranty.

After all that work we only did two things.

Replace the cams and trashed the PV for the TTS.

Took you 18 months to make up your mind, guess that's better than 2 years, right? :wave4:

Go easy on Tubby... don't want to break that drive belt. :gah:

Wiz, I spoke to my dealer about the SE245E (possible winter project) and he said it was a racing cam (crossed flags) and was not a warrantied part. Additionally, he said that if I had an engine problem that they could trace back to that cam, the warranty would not cover the engine repairs. Is that your understanding of that cam and the warranty?

The '14 trikes use a 255? which I believe would be covered under warranty for both part and engine.
What is your knowledge/feeling concerning that cam?

Thx!

 

[Lizard]

Seabiz, they are wrong. Not only is the 254 a drop in authorized street legal cam, it is even legal for the ESP. I called them and the 254 is specifically authorized by part number in their documentation. I put mine in about 2 months ago, so my info is fairly current.

 

[Mr.Wizard]

Yup... afraid Lizard is correct. They are street-legal cams.

Click this link -> Screamin' Eagle Twin Cam Performance Cam- SE-254E Cam Kit-25503-10 | Engines, Transmissions & Components | Official Harley-Davidson Online Store

Look under the More Info tab. You will see...These Screamin' Eagle® products are 50-state street-legal for sale and use on all vehicles, including those that are pollution controlled.

Also. The new 2014 bikes do not use the 255 cams. They use a similar cam profile to the 255 but not the 255. The 254E cam will outperform the 255's hands down.

I run the 254E cams in my 2013 TG and absolutely love them. They arean't a lumpy cam, give great low end manners but also full mid range torque. Get over 5000 RPM's the torque just doesn't want to quit. MPG is enhanced as well. I can get just about 40 taking it easy. Average is 38 playing around.

 

[seabiz]

Yup... afraid Lizard is correct. They are street-legal cams.

Click this link -> Screamin' Eagle Twin Cam Performance Cam- SE-254E Cam Kit-25503-10 | Engines, Transmissions & Components | Official Harley-Davidson Online Store

Look under the More Info tab. You will see...These Screamin' Eagle® products are 50-state street-legal for sale and use on all vehicles, including those that are pollution controlled.

Also. The new 2014 bikes do not use the 255 cams. They use a similar cam profile to the 255 but not the 255. The 254E cam will outperform the 255's hands down.

I run the 254E cams in my 2013 TG and absolutely love them. They arean't a lumpy cam, give great low end manners but also full mid range torque. Get over 5000 RPM's the torque just doesn't want to quit. MPG is enhanced as well. I can get just about 40 taking it easy. Average is 38 playing around.

Wiz, Lizard, Thanks so much for the reply. I guess I will have to educate them! So, Street Legal means that it won't hurt the warranty (as long as dealer installed)? Looks like that winter project will go forward (along with AIM 480 spring and Barnett Clutch Pak)! I have the TTS but haven't done the tune - another winter project. Have to get a Fullsac pipe first. Wiz, Lizard, I see you re-cored your CVO mufflers with the 1.75" Fullsac cores. I have the V&H Deluxe Trike Slip-ons (like Trike Monster Ovals with a 2" core); do you think those should/could be re-cored with the 1.75" Fullsac cores?
thx!

 

[Mr.Wizard]

Don't forget the Hayden tension adjuster.

Don't worry about the mufflers. Although a stock bike works great with baffles up to 1.75 and they give you the best experience with a bottom end cam... the 2.0 baffle will work but you may have a shift pop (not a decel pop) sometimes. Fullsac cores won't work with V&H mufflers.

 

[Lizard]

I absolutely defer to Wiz on this. He has much more experience than I do, and except for the comments about the 2" cores, I agree 100%. I can't say about the cores, not because I disagree, but because I don't know.

 

[Mr.Wizard]

It's actually fairly simple.

If we use the constant that exhaust back pressure = bottom end torque then we can use the opposite reaction of less exhaust back pressure = top end horsepower.

Riding a Harley we deal in torque values and less with horsepower. Riding a TG needs torque to move the mass while horsepower will keep the mass in motion.

Results are the smaller the baffle size the more mass you can start in motion. As you increase the baffle size the less energy you have to start the mass in motion but since the incoming air has more flow with higher RPM's and the bafflers are larger allowing air to leave the cylinders you hold the mass in motion.

There is a fine line between too much exhaust restriction (stock mufflers) and too little restriction (open baffles). This common line is the 1.75 baffle when combined with a proper tune. With more dynamic head pipes you will also create more air flow but the 1.75 baffle will restrict just enough. No decel or shift pop. Moving up the scale to 2.0 baffle you will get a small amount of shift pop about 3000 RPM's. Again moving up the scale to a 2.25 or even more the risk of decel pop or exhaust reversion come into play. Tuning this out is difficult to say the least.

I hoped to make this easy to understand but I'm going to toss in one more comment. There is no replacement for displacement. As you go up in cubic inches you should increase your baffle size to increase the air flow. Such as, a 110 can easily use the 2.0 and the 124's can easily use a 2.5 baffle. It's all retaliative and commonly reactive.