UPGRADING CURRENT LS ECM SYSTEM

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craig haymaker
Posts: 141
Joined: Thu Apr 24, 2008 10:25 pm
Location: Pasco, WA.

UPGRADING CURRENT LS ECM SYSTEM

Post 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.
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Grand Canard
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Location: Lake Arthur, Louisiana

Re: UPGRADING CURRENT LS ECM SYSTEM

Post 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.
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"Work when you have to,
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Drink when you're thirsty
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craig haymaker
Posts: 141
Joined: Thu Apr 24, 2008 10:25 pm
Location: Pasco, WA.

Re: UPGRADING CURRENT LS ECM SYSTEM

Post 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.
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Oldun
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Location: New Zealand

Re: UPGRADING CURRENT LS ECM SYSTEM

Post 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!
My 100-proof woman
A bottle of 95-proof whiskey
A tank of 90-proof gas
And 502ci of V8 bike
:ridding:
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Grand Canard
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Re: UPGRADING CURRENT LS ECM SYSTEM

Post 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?
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"Work when you have to,
Quit when you can.
Follow your dream
Be your own man.
Drink when you're thirsty
Whoop when you're high.
Love a good woman...
Ride till you die."
Oldun
Posts: 225
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Location: New Zealand

Re: UPGRADING CURRENT LS ECM SYSTEM

Post 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.
My 100-proof woman
A bottle of 95-proof whiskey
A tank of 90-proof gas
And 502ci of V8 bike
:ridding:
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Grand Canard
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Location: Lake Arthur, Louisiana

Re: UPGRADING CURRENT LS ECM SYSTEM

Post 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
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"Work when you have to,
Quit when you can.
Follow your dream
Be your own man.
Drink when you're thirsty
Whoop when you're high.
Love a good woman...
Ride till you die."
Oldun
Posts: 225
Joined: Sun Jan 20, 2008 2:43 am
Location: New Zealand

Re: UPGRADING CURRENT LS ECM SYSTEM

Post by Oldun »

Thanks Ricky, appreciate the info.
My 100-proof woman
A bottle of 95-proof whiskey
A tank of 90-proof gas
And 502ci of V8 bike
:ridding:
Jack
Posts: 276
Joined: Thu Jan 14, 2016 6:31 am

Re: UPGRADING CURRENT LS ECM SYSTEM

Post 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.
1998 Wild One Custom - Homebuilt
Oldun
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Re: UPGRADING CURRENT LS ECM SYSTEM

Post 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.
My 100-proof woman
A bottle of 95-proof whiskey
A tank of 90-proof gas
And 502ci of V8 bike
:ridding:
Jack
Posts: 276
Joined: Thu Jan 14, 2016 6:31 am

Re: UPGRADING CURRENT LS ECM SYSTEM

Post 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.
1998 Wild One Custom - Homebuilt
randy burkey
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Re: UPGRADING CURRENT LS ECM SYSTEM

Post 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
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Oldun
Posts: 225
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Location: New Zealand

Re: UPGRADING CURRENT LS ECM SYSTEM

Post by Oldun »

I'm really looking forward to the Paris rally!
My 100-proof woman
A bottle of 95-proof whiskey
A tank of 90-proof gas
And 502ci of V8 bike
:ridding:
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