Triumphrat

jimmy4871 · 02-15-2010, 07:26 PM

I purchased the tuneboy product last july in the group buy, I have an 08 America and have done several uploads and modifications to the fuel map in that time. I have just had it in for the 10k service and the service guy tells me my ecu is corrupted and they can't upload/download anything. I was wondering if anyone knows if there is a way to restore a factory tune or maybe some sort of system reset? The service guy is telling me I need to buy a new ecu (sounds expensive), I'm saying it's under warranty but they say with an aftermarket tune they didn't install, I have voided the warranty. Any help or advice would be greatly appreciated.

Forchetto · 02-15-2010, 07:32 PM

If it's working right, why do they want to upload/download anything?. What might have happened is that the code number they use to access the software for diagnostics is not longer responding.

Does the tuneboy software have its own access code?. They can use that for diagnostics then, although the Official Triumph tool might not work.

jimmy4871 · 02-15-2010, 08:21 PM

Thanks Forchetto for your prompt reply, I just got a call from the service guy telling me they reset it. I spent a bit of time quizzing him, but he couldn't tell me much except you can't make any mods to your airbox (including an aftermarket filter K&N etc) or block the AI, in fact you can't do anything to an efi bonnie except put on genuine trumpy parts TOR's are about as good as you get these bikes to run.

I'd be keen to hear from anyone with dyno evidence to show a contrary result.

blight · 02-15-2010, 10:11 PM

Quote:

Originally Posted by jimmy4871

Thanks Forchetto for your prompt reply, I just got a call from the service guy telling me they reset it. I spent a bit of time quizzing him, but he couldn't tell me much except you can't make any mods to your airbox (including an aftermarket filter K&N etc) or block the AI, in fact you can't do anything to an efi bonnie except put on genuine trumpy parts TOR's are about as good as you get these bikes to run.
I'd be keen to hear from anyone with dyno evidence to show a contrary result.

That's surprising news! I can see them telling you that, but only to preserve your warranty... that's only fair.

But, it seems to me that after warranty, if you free up the intake and exhaust restrictions that the O2 sensor would take over and adjust the map (or pulse width at least) to keep the A/F mixture correct. Kinda like when you change altitude... the EFI is supposed to compensate for the mixture rich vs. lean and correct it as necessary.

(I know there are other variables, such as atmospheric pressure, ambient air temp, etc.)

If you can't "hot-rod" an EFI Hinckley twin, then I think a pair of new carbs might be on your Birthday wish list!

Let's hear from somebody with a (intake-exhaust and AI) modded EFI twin, and like you said... with some real dyno or drag numbers?

Cheers,
BLIGHT

RedBird · 02-15-2010, 10:47 PM

Sure works great on an EFI Tiger1050.

SOCALTHRUX · 02-16-2010, 12:05 AM

I've not had any issues modding my bike other than one particular tuneboy tune won't take for some reason. removing the AI on an EFI is not a good idea, everything else is a go. Just be aware tuneboy's customer service after the sale lacks huge.

dkreidel · 02-16-2010, 03:16 AM

Quote:

Originally Posted by SOCALTHRUX

I've not had any issues modding my bike other than one particular tuneboy tune won't take for some reason. removing the AI on an EFI is not a good idea, everything else is a go. Just be aware tuneboy's customer service after the sale lacks huge.

I have two EFI Bonnies with the AI removed, O2 sensors unplugged and revised fuel maps via Power Commanders. Both bikes have been on the dyno and make about 4 HP more than stock, and have vastly improved throttle response - no low throttle "snatchiness"

Dick

PieMan · 02-16-2010, 03:25 AM

It is correct that if you carry out airbox mods with an EFI bike, you should have a dyno run and custom tune. The Arrow 2-2, 2-1 and Aftermarket Pipes tunes are in the region of 15%-20% to lean from 3/4 throttle up.

SOCALTHRUX · 02-16-2010, 03:35 AM

Quote:

Originally Posted by dkreidel

I have two EFI Bonnies with the AI removed, O2 sensors unplugged and revised fuel maps via Power Commanders. Both bikes have been on the dyno and make about 4 HP more than stock, and have vastly improved throttle response - no low throttle "snatchiness"

Dick

Most likely your gains were due to the re-tune and not the removal of the AI. All the info I've gathered from several sources say there's no net power gained from the removal of these devices on an EFI bike. When they are removed, it really screws with the fueling, most cases you will need to dump way more fuel to compensate/fool the ECM. Air injection has been around for some time and definitely serves a purpose on EFI engines. Some vehicles get a gain and some don't. I might be new to tuneboy software, but the effects were drastic when set on a dyno. I made more power with them in and a re-tune.

SOCALTHRUX · 02-16-2010, 03:41 AM

Quote:

Originally Posted by PieMan

It is correct that if you carry out airbox mods with an EFI bike, you should have a dyno run and custom tune. The Arrow 2-2, 2-1 and Aftermarket Pipes tunes are in the region of 15%-20% to lean from 3/4 throttle up.

Sorry to hijack your thread OP!!! Which is the least lean to start out with as a base tune? At 3/4 throttle up, aren't we in open loop and just using the fixed/commanded A/F tab values?