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Old 07-02-2022, 08:58 PM   #1
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1981 28' Airstream 280
Lino Lakes , MN
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1981 Excella 280 Fuel Injection

Before I can get to the fun RV renovation stuff I am still working on the drive train. I tried having the carburetor rebuilt professionally twice. The motor ran better but would die after a half an hour of running. Every time I drove I was anxious that it would die and strand me again. That was no good for an RV.
I decided to drop the big bucks and install a Holley Sniper fuel injection system including a new fuel pump and regulator. I had already dropped the tank and had it cleaned and coated. So the fuel system is all new. As long as I was at it I replaced the distributor, plugs, and wires. So the ignition system is all new. I hired a mechanic to do the work on the side at his home for a cost of $4,000 for parts and labor. It's not very difficult to install but I just didn't want to do it.
The result is a reliable engine that starts every time, isn't effected by heat, is quieter, and has noticeably more power. Best of all is the peace of mind while driving.
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Old 07-03-2022, 07:31 PM   #2
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1982 27' Excella
Harrisburg , Oregon
Join Date: Dec 2020
Posts: 201
Going to fuel injection is a great choice. I've heard only good things said and written about Holley fuel injection replacement kits. I'm glad you got a good result too.

Have you seen the motorhome sections here at Air Forums? Check out https://www.airforums.com/forums/f156/. You may find more in common there than here in the Excella trailer sections, although I enjoy reading your threads.

Well done,
Scott
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Old 07-04-2022, 08:05 AM   #3
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1981 28' Airstream 280
Lino Lakes , MN
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Thank you for that information. I wondered why I wasn't getting many comments. I posted under the correct year and Excella. But never noticed it said trailer.
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Old 10-07-2022, 09:19 AM   #4
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1979 24' Airstream Excella 24
Middleburg , VA
Join Date: Dec 2020
Posts: 14
Hi Schriens, i was wondering how the Sniper FI was working out? I have a 79 Excella 24' with a Quadrajunk that hasn't been touched for 40+ years. It's running OK, but was considering FI to make it more reliable. Also, what model kit did you use? Thanks
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Old 10-08-2022, 06:08 PM   #5
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1981 28' Airstream 280
Lino Lakes , MN
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I bought 510-550-867K from Jegs. Summit has them too. There is a couple of other colors you can get. All around $1700. I bought the kit to basically replace all of the fuel system. As long as I was at it I bought a distributor from Auto Zone. I’m still happy with it but haven’t taken it on a long trip yet.
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Old 10-09-2022, 04:01 PM   #6
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1979 24' Airstream Excella 24
Middleburg , VA
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Excellent, thanks for the info. Looks like another project for the list!
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Old 05-22-2024, 02:19 PM   #7
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1981 28' Airstream 280
Black Diamond , Washington
Join Date: Jul 2011
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I see this is an older post, But I have the same year/model i bought in Denver and drove home to Seattle. its tuned for altitude in Denver and instead of re tuning im looking at getting the sniper EFI. how has it worked out for you?
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Old 05-23-2024, 07:32 AM   #8
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1981 28' Airstream 280
Lino Lakes , MN
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Sniper follow up

Actually it's a good time for a follow up on the Sniper. It worked well at first but then it started running worse. I even sent it back to Holley for testing. They said it was good. The local performance shops said they won't work on Snipers. That "they are junk". I was really bummed......... until I figured out that I had Accessary power instead of Ignition power running to the Sniper. So every time I'd turn the key to Start the power would cut off to the Sniper. (The Holley technician helped find this mistake) Once I ran the proper power it has ran great. I'm in Minnesota and I've driven it in temperatures from the 20's to the 80's with no issues. I just got it road worthy after two years of renovation so I haven't experience extreme conditions but so far I am very happy with the Sniper.
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Old 05-24-2024, 01:08 AM   #9
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1981 28' Airstream 280
Black Diamond , Washington
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Interesting, did you do the install yourself? I’ve watched the YouTube video on HOLLEY’s website selling these and it doesn’t look to terrible, but I’m on the fence. I like to travel to altitude and sea level and would like the benefits of EFI. I appreciate you responding, not a lot of these around so your info is helpful.
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Old 05-25-2024, 07:48 AM   #10
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1981 28' Airstream 280
Lino Lakes , MN
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I did not do the install myself. I found a local mechanic who does work on the side at his home. Since I had did a lot of rewiring under the dash I "helped" him find the power. Neither one of caught that it should have been ignition power the first time. It's not very hard to install the hardware, new lines, electric pump, filters. I just wanted to focus on restoring the RV part and was happy to farm out working on the motor.
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Old 05-26-2024, 03:10 PM   #11
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1981 28' Airstream 280
Black Diamond , Washington
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Awesome, I appreciate the information buddy, love mine and in the process of just making it my reliable home on wheels. Thanks again for getting back to me��
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