Dobeck TFI/no mods/ping

[Shardy]

I have read quite a bit about using A TFI on Nomads with mods. My bike is all stock. Will the Dobeck solve the ping problem I have even though I am using 93 octane?

Steve
08 Marine Blue Nomad

[Jeffsmountainauto]

Haven't used that one, but it is adjustable. If your bike is pining due to being lean, I would say so, Once it's adjusted properly. I have the cobra powrpro AT recently installed on an 06 nomad 1600 and my bike hasn't pinged since. It was pretty bad before, especially when the weather was good and warm out.

[duneseven]

Yes mine would still ping with the tfi at high altitude on hot days unless I ran super plus these bikes are all different in this regard so results are unknown. I had just switched to the cobra power pro but wrecked so I can not speak to its performance

[eagle]

My bike came with "Debaffled" stock pipes. The bike pinged like crazy. I then added a Doebeck TFI and that solved the problem for the most part. Then I changed the exhaust to an aftermarket type and that helped even more. However if I am cruising at about 70 MPH and suddenly accelerate, the bike will still start to ping.
Others have said the same about sudden accelerating at over 70 MPH.

[VulcanE]

Originally Posted by eagle

My bike came with "Debaffled" stock pipes. The bike pinged like crazy. I then added a Doebeck TFI and that solved the problem for the most part. Then I changed the exhaust to an aftermarket type and that helped even more. However if I am cruising at about 70 MPH and suddenly accelerate, the bike will still start to ping.
Others have said the same about sudden accelerating at over 70 MPH.

Sounds like you need to do a little adjusting on the 2nd pod, that's what it is for.

On the original question, if a TFI is adjusted correctly, it WILL eliminate pinging due to lean conditions (on a stock or lightly modified bike), and it will work in conjunction with the atmospheric sensor and automatically adjust for elevation changes. I've been running the TFI for the past 8 years on my bike since it was new, and IMHO, it is the best one out there, especially for the price.

[Shardy]

Just what I needed to know! Thanks!

[Cajunrider]

The TFI alone on my debaffled '07 Nomad eliminated 90% of the ping. After adding the V&H baggers it was even better. Then came the open right side intake. I couldn't make it ping after all three and used 87 octane fuel exclusively. The TFI alone will also eliminate the stumbling between 1st and 2nd gear if you have that issue. Either way, you can't go wrong.

[rickyboy]

It sounds like you have a handle on your pinging problem.
I never had an issue with pinging really........

I have debaffled stock pipes, duel "caddman" { the 2nd/left side mostly for esthetics } but the cross over tube is still on the bike for all the difference that makes. Each side has the 360 K&N open air filter, and I have the TFI installed. I'm not sure how much elevation makes with FI engines but my settings are as follows.
The numbers on this drawing below are a little hard to read but by the clock positions they're from Left to right
1:30
4:00
Off
9:00


In short, I wouldn't hesitate installing the TFI. It works great for our inherently lean Vulcans.

[Shardy]

I may end up doing the bafflectomy, but that's probably all for right now. Since I ride well over 20K miles per year, 87 octane can save me quite a bit. I am assuming one can reset the TFI if mods are made to a bike, right?

[Cajunrider]

Absolutely.

[rickyboy]

Sure it can be adjusted Shardy. But I'd do the debaffleing sooner rather than later if it were me. Especially for all the time it takes. I think it took me all of 1/2 an hour which included getting the drill and hole saw set up and put away. Remember to use a good sharp hole saw blade.
The more air going in,..... the more you want it to be displaced.
Good luck !!

[cactusjack]

Originally Posted by Shardy

I may end up doing the bafflectomy, but that's probably all for right now. Since I ride well over 20K miles per year, 87 octane can save me quite a bit. I am assuming one can reset the TFI if mods are made to a bike, right?

The bafflectomy only changes the tone of the exhaust a little bit. It does not add performance or increase exhaust efficiency. The key to "waking up" these bikes is to do the big three: intake, exhaust, and fuel processor.

[rickyboy]

Originally Posted by cactusjack

The bafflectomy only changes the tone of the exhaust a little bit. It does not add performance or increase exhaust efficiency. The key to "waking up" these bikes is to do the big three: intake, exhaust, and fuel processor.

Scott, so In your opinion, removal of the baffles doesn't increase the air flow ...out of the system?? I think it does...less restriction?? Did it do as good of a job as say someone who installs different pipes Vance and Hines ......probably not but,......

[Shardy]

Originally Posted by cactusjack

The bafflectomy only changes the tone of the exhaust a little bit. It does not add performance or increase exhaust efficiency. The key to "waking up" these bikes is to do the big three: intake, exhaust, and fuel processor.

O.K., so here's a question. Can you increase exhaust efficiency without making your bike sound like a Harley. ( oops, I meant freight train?) If so, who makes them? I kind of like quiet at my age.

[cactusjack]

Originally Posted by rickyboy

Scott, so In your opinion, removal of the baffles doesn't increase the air flow ...out of the system?? I think it does...less restriction?? Did it do as good of a job as say someone who installs different pipes Vance and Hines ......probably not but,......

The problem is the stock exhaust is already restricted before it gets to the muffler. The 1500/1600 stock exhaust is not an efficient design with the goat belly and the small diameter tubing. Gutting the goat belly accomplishes nothing because you still have the smaller diameter pipe.

No, I do not believe a debaffled stock exhaust system is as good or efficient as an aftermarket system. A 1-3/4" pipe flows more than a 1" pipe. That fact can't be changed.