355 - New 355 (2.7) Bosch Fuel Injectors... | FerrariChat

355 New 355 (2.7) Bosch Fuel Injectors...

Discussion in '348/355' started by F1ScuderiaTifosi, May 30, 2020.

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  1. F1ScuderiaTifosi

    Mar 16, 2015
    131
    Hill Country TEXAS
    Full Name:
    JB
    Good afternoon everyone,

    I thought I'd give y'all a heads up just in case any of y'all are looking for new OEM Bosch (0280155003) Fuel/Electro-Injectors for your 2.7 or any other Ferrari model that utilizes Ferrari part number 149316...

    I'm the kind of guy that prefers to prevent problems before they happen. Knowing that my baby is 25 years old I've decided to plan a near-future fuel pump refresh (ethanol breakdown of components, concerns) so I figured I'd do a fuel injector refresh while I'm at it.

    Unfortunately I found that they are unavailable from Ricambi and saw that they were fairly hard to come by unless I were to purchase used ones and have them rebuilt by a reputable outfit. I began cross referencing and found that Porsche uses Bosch 0280155003 fuel injectors under Porsche part number 94460612000. I did some searching and found that Porsche of Marin had them for $169 a piece so I purchased a set along with a new set of Ferrari O.R. Gaskets (133902) and Injectors Retaining Clips (144763) from Ricambi.

    Maybe y'all know about the fuel injector cross referencing or maybe not but I thought I'd post about it any way, just in case. I'll be having my used ones rebuilt then shelved for the future. Probably by Fuel Injection Corp. in Tracy, CA. unless one of y'all advise I shouldn't for some reason.

    Now if only I could find a new pair of Bosch 0280213012 (Ferrari 154916) Air Flow Meters, LOL!

    Have a good and safe one y'all!

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  2. audi_328

    audi_328 Formula 3
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    Jul 13, 2005
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    That's all good info to have, especially the cross-reference of part numbers...as a Ferrari part, they're not cheap.

    Curious, though, why wouldn't you want to have the existing injectors refurbished? Honest question, always thought a quality refurbished injector was basically good as new. Interesting you got your injectors from Marin Porsche, reminded me I use Marren Fuel Injection when I need injectors serviced.
     
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  3. F1ScuderiaTifosi

    Mar 16, 2015
    131
    Hill Country TEXAS
    Full Name:
    JB
    As stated, I am having the current set rebuilt/refurbished but I don't want the extended vehicle downtime so I'm going to install the new set immediately after I backflush the fuel rails. After I have the current set rebuilt/refurbished I'm going to have them available on my shelf for future refresh work.

    I'll look into Marren, thanks for the tip!
     
  4. audi_328

    audi_328 Formula 3
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    Jul 13, 2005
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    Sorry, I missed that part!

    I like Marren, I believe their website is fuelinjectors.com. Reasonable prices, quick turnaround, I found out about them through recommendations in the Porsche community.

    Good luck with your refresh :)
     
  5. Qavion

    Qavion F1 World Champ
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    Feb 20, 2015
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    Seems like a bargain. Most Google searches show the Porsche injectors at far higher prices and many sites show unavailable. Not suitable for the 5.2 unfortunately.
     
  6. vvassallo

    vvassallo F1 Veteran
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    Aug 4, 2006
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    Vince V
    That is a very expensive way to go. O-Side Tiger has an eBay site and they can get you a set of replacements for about the cost of one OEM part. Better yet, they have 4 holes for better fuel atomization. I have had them in my car, a 348, for years. They can provide a set for just about any vehicle. You should get a set just to have them around as a spare in case another stock injector goes south.
     
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  7. F1ScuderiaTifosi

    Mar 16, 2015
    131
    Hill Country TEXAS
    Full Name:
    JB
    All good no worries! Marren looks good. I'll contact them once I have the old ones out. Thanks again!
     
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  8. F1ScuderiaTifosi

    Mar 16, 2015
    131
    Hill Country TEXAS
    Full Name:
    JB
    This was the lowest price I could find on-line. Are the ones for the 5.2 still readily available?
     
  9. F1ScuderiaTifosi

    Mar 16, 2015
    131
    Hill Country TEXAS
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    JB
    Good to know. Thanks!
     
  10. Qavion

    Qavion F1 World Champ
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    Feb 20, 2015
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    Haven't checked (until now)... Seems like the situation is the same. Getting harder to find. Ferrari part number 162613 (obsolete Bosch P/N 0280150449?). Eurospares ... "subject to availability" and UKP470.63 each! (U$580) ... Used is more expensive than your new 2.7's. Superformance UKP247

    It looks like Five O Motorsports offer aftermarket types, but I recall there was a debate over the use of them.

    https://www.fiveomotorsport.com/211u288-ferrari-maranello-355-456-550/
     
  11. F1ScuderiaTifosi

    Mar 16, 2015
    131
    Hill Country TEXAS
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    JB

    Bro, your cross reference part number is listed on that website!... Porsche 99360612000 (OEM so it's Bosch)

    Porsche Marin lists it for $248 per injector! That's much much better than $580, LOL!

    You can name your next child after me for saving you a considerable amount of $$$, LOL!
     
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  12. F1ScuderiaTifosi

    Mar 16, 2015
    131
    Hill Country TEXAS
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    JB
    Try to see if your current injectors show 0280150449 or 0280150786 before you order though. The Porsche 99360612000 part number looks to coincide with the Bosch 0280150786 :D
     
  13. m.stojanovic

    m.stojanovic F1 Rookie
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    Dec 22, 2011
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    According to the info I have, the 355 injectors are as follows:

    2.7 0 280 155 013 15.4 Ohm Single Spray; 0 280 155 003 appears to be identical to 013, all parameters are same and both have 291 ml/min static flow at 3 Bar
    2.7 0 280 155 869 14.4 Ohm Dual Spray, slightly higher flow than the above two, 305 ml/min static flow at 3 Bar (I do not know the VIN/year of change)

    5.2 0 280 150 449 15.9 Ohm Dual Spray, 267 ml/min static flow at 3 Bar
    possible alternative:
    5.2 0 280 150 786 15.9 Ohm Single Spray, 260 ml/min static flow at 3 Bar (but it has single spray pattern)
     
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  14. F1ScuderiaTifosi

    Mar 16, 2015
    131
    Hill Country TEXAS
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    JB
    This is great technical and compatibility information. Thanks for posting this.
     
  15. Qavion

    Qavion F1 World Champ
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    Did you notice on the fiveomotorsport website that their aftermarket ones are "4 hole". Do they mean "quad spray"?

    Would a different spray pattern mess with the combustion, particularly during open loop operation when all the sensors are not being used to control fuel/air ratio?
     
  16. F1ScuderiaTifosi

    Mar 16, 2015
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    JB
    Thats a good question. I'd like to know the answer as well. :)
     
  17. SoCal1

    SoCal1 F1 Veteran
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    Jun 14, 2011
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    I have 10 or so sets of all different kind of injectors. Think I am running 355 2.7 injectors in my 348. Need to get them checked for flow rates. The 4 hole ones I could not get lean enough they ran rich even with ECU mods. Flow test is your friend do not believe the givin ratings on aftermarket stuff
    Five0 stuff was pretty decent have a few from them
     
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  18. m.stojanovic

    m.stojanovic F1 Rookie
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    Dec 22, 2011
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    The 348 2.7 injectors have the flow of ~200 ml/min which is considerably lower than the 2.7 355's ~300 ml/min. The table below shows that the 348's injectors are identical to the Porsche's injectors, Bosch 0 280 150 731 or 0 280 150 730 (the two look identical). As the injectors sold for Porsches are also very expensive, one possible much cheaper alternative are the GM injectors shown at the bottom. These appear on Ebay at $50 to $100 brand new.
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  19. m.stojanovic

    m.stojanovic F1 Rookie
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    I don't think there is any noticeable difference between single and twin spray in the case of injectors of lower flows. I wouldn't go for twin spray on the 348 with 200 ml/min flow; perhaps justified on the 355 with 300 ml/min flow. 4 hole means quad spray - probably only good for very high flow injectors like on highly modified race engines where they go to as high as 1000 ml/min.
     
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  20. F1ScuderiaTifosi

    Mar 16, 2015
    131
    Hill Country TEXAS
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    JB
    Just for knowledge sake... Do you know of possible alternatives for the Bosch 0 280 155 003?
     
  21. m.stojanovic

    m.stojanovic F1 Rookie
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    Dec 22, 2011
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    I have a table showing possible alternatives to 0 280 155 869 which seems to be used on some later 355 2.7 engines. This injector has similar flow as the earlier 0 280 155 013 or the identical 0 280 155 003 but it has twin spray. The shown Audi injector has 12 Ohm resistance so it may not really be suitable (possible overload of the ECU's switching circuitry). This table shows somewhat different "operating pressures" of the injectors but another table that I have shows that they are all rated at 300 kPa (3.0 Bar).
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