Page 1 of 1

UPGRADING CURRENT LS ECM SYSTEM

Posted: Fri Aug 12, 2016 9:09 am
by craig haymaker
I am putting this out here for all LS owners.
I have heard a suggestion, of considering an "upgrade" to the new Holly system, on my 2014 57 Chevy 485 trike !
Is this even a cost effective consideration ? New tank & paint, new wiring harness, the Holly EFI system and what else am I missing ? I am thinking that it would be cost prohibitive ! Craig H.

Re: UPGRADING CURRENT LS ECM SYSTEM

Posted: Fri Aug 12, 2016 10:33 am
by Grand Canard
You can do a basic upgrade which is just ECU and Harness, keep existing fuel tank, console , radiator, pump , etc.
it's ur call.

Re: UPGRADING CURRENT LS ECM SYSTEM

Posted: Fri Aug 12, 2016 12:18 pm
by craig haymaker
Ok cool Ricky, I'll talk to Brian and Gabe when we see him on Monday.. Thanks for the response, Craig H.

Re: UPGRADING CURRENT LS ECM SYSTEM

Posted: Fri Aug 12, 2016 6:41 pm
by Oldun
Grand Canard wrote:You can do a basic upgrade which is just ECU and Harness, keep existing fuel tank, console , radiator, pump , etc.
it's ur call.
Hi Ricky

May I ask if the factory does EFI upgrades to bikes in-house? Only reason for the question is that would save me a considerable amount of shipping costs, as I hope to have the '07 502 in Dyersburg i.e. for the Paris rally next month.

Thanks!

Re: UPGRADING CURRENT LS ECM SYSTEM

Posted: Sat Aug 13, 2016 12:40 pm
by Grand Canard
Oldun wrote:
Grand Canard wrote:You can do a basic upgrade which is just ECU and Harness, keep existing fuel tank, console , radiator, pump , etc.
it's ur call.
Hi Ricky

May I ask if the factory does EFI upgrades to bikes in-house? Only reason for the question is that would save me a considerable amount of shipping costs, as I hope to have the '07 502 in Dyersburg i.e. for the Paris rally next month.

Thanks!
Olson, I'm a bit confused with your post. You have a 502 which is carbureted, what ECU are you referring to?

Re: UPGRADING CURRENT LS ECM SYSTEM

Posted: Sat Aug 13, 2016 11:40 pm
by Oldun
Sorry Ricky and indeed I am confused. I had brain fade and didn't think of the difference between upgrading an ECU and retrofitting EFI... Tech is not my strong suit!

What I was trying to ask is - do you do a factory conversion from carbs to EFI; while I would have the bike in TN, that would save me shipping costs to and from Havasu.

Re: UPGRADING CURRENT LS ECM SYSTEM

Posted: Tue Aug 16, 2016 8:43 am
by Grand Canard
https://www.holley.com/local_speed_shops/
Oldun wrote:Sorry Ricky and indeed I am confused. I had brain fade and didn't think of the difference between upgrading an ECU and retrofitting EFI... Tech is not my strong suit!

What I was trying to ask is - do you do a factory conversion from carbs to EFI; while I would have the bike in TN, that would save me shipping costs to and from Havasu.
The factory doesn't but plenty of hot rod shops out there will happily install it for you.

https://www.holley.com/local_speed_shops/

http://www.fuelairspark.com/fas/efi-sys ... ectionhtml

Re: UPGRADING CURRENT LS ECM SYSTEM

Posted: Tue Aug 16, 2016 5:10 pm
by Oldun
Thanks Ricky, appreciate the info.

Re: UPGRADING CURRENT LS ECM SYSTEM

Posted: Wed Aug 17, 2016 5:50 am
by Jack
For what it's worth, I converted my carb bike to EFI (MSD Atomic) in a night. No special tools. Had the muffler shop weld the o2 bung on my exhaust the day before.

I had to go with the MSD because the other throttle bodies available wouldn't fit under my frame or the gas tank. Most of these installs are a few hours and then self learning after that.

Re: UPGRADING CURRENT LS ECM SYSTEM

Posted: Wed Aug 17, 2016 5:09 pm
by Oldun
Thanks Jack. But given my level of mechanical inexpertise & since it requires something other than anesthesia, incision, repaid, suturing... I think I'll go with the EFI experts at Havasu.

Re: UPGRADING CURRENT LS ECM SYSTEM

Posted: Wed Aug 17, 2016 5:57 pm
by Jack
Oldun wrote:Thanks Jack. But given my level of mechanical inexpertise & since it requires something other than anesthesia, incision, repaid, suturing... I think I'll go with the EFI experts at Havasu.
Understood... I guess my point is that any competent shop should be able to do the install in a day.

Re: UPGRADING CURRENT LS ECM SYSTEM

Posted: Wed Aug 17, 2016 8:03 pm
by randy burkey
Oldun,,I have nothing to add other than to hopefully meet you at the Paris rally..I'm the lucky guy with the pretty lady on the amber whiskey Harley street glide! Randy

Re: UPGRADING CURRENT LS ECM SYSTEM

Posted: Wed Aug 17, 2016 11:56 pm
by Oldun
I'm really looking forward to the Paris rally!