308 Gtsi restoration+EFI....

Discussion in '308/328' started by MickyB, Feb 24, 2017.

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  1. MickyB

    MickyB Karting

    Aug 21, 2016
    64
    Hungary
    G. Pepper likes this.
  2. ATSAaron

    ATSAaron Formula Junior
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    Jun 1, 2004
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    Aaron Bunch
    Nice cam sensor! What did you add to the cam for a trigger?

    Aaron
     
  3. MickyB

    MickyB Karting

    Aug 21, 2016
    64
    Hungary
  4. Ferraripilot

    Ferraripilot F1 World Champ
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    I love this build! Where are you placing the air intake sensor?
     
  5. MickyB

    MickyB Karting

    Aug 21, 2016
    64
    Hungary
    it's going to be placed somewhere in the air box. The plan is to make one as the carbed airbox!
    It is a small issue compared to the others you see above.....
     
  6. MickyB

    MickyB Karting

    Aug 21, 2016
    64
    Hungary
    I bought the jenvey parts as they know what i need for this 308 setup, but i had to change 90% of the fuel and linkage parts to fit correctly
    or even to fit...
    But now the final self designed parts installed too. I went for the metal printing so they looks like an original factory casting piece
    I think it looks vintage too...
    It uses the factory needle bearing coming from the carbed 308 , so it moves like greased lightning....:)
    Hard to belive but it took 5-7 days to measure,design and test and redesign this the reach the final dimension....
    I'm going to syncronize those too so only a little fine tune needed when the engine is running.

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  8. Cirorsi

    Cirorsi Formula Junior
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    Steven
    That is fantastic, great job.
     
  9. Jakey

    Jakey Karting

    Feb 2, 2016
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    S.F. Bay area
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    Jim
    Hey MickyB,
    Looking really good. How much horsepower do you expect when this project is finished?

    Jim
     
  10. MickyB

    MickyB Karting

    Aug 21, 2016
    64
    Hungary
    I think 270-290 hp. I made some simulation which included some experience too So i came up with this
    config. I will make the running in session and the programing of the ecu on a Dyno dinamics rolling
    road which is top level in my experience.Will post result of course.
     
  11. Ferraripilot

    Ferraripilot F1 World Champ
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    Great progress. keep us going!

    what brand pistons are those you're using? and how many mm did you open the intake ports? and those camshafts look like Cat Cams, is that right? I ran Cat Cams in a motor and they were fantastic!
     
  12. MickyB

    MickyB Karting

    Aug 21, 2016
    64
    Hungary
    I used 1st oversized wossner pistons, as they are a bit softer then ross racing or je etc, so less clearence so less oil consumption and bit less noise,
    and i have a great discount on them as a reseller :cool:
    Also the same for the catcams, but i ordered a custom cams, as i like a relative short duration but bigger lift, and i use a very small exh cam
    as i think the exh valve, port etc...are too oversized for this engine.
    I focused on intake , compression and less drag/more efficient setup. Use high tech parts and small good shaped ports as possible, and
    small cams as possible.. High tech fuel injectors,ign coils, reasonable high performance ecu.
    As equal as possible every cylinder, timing etc......
     
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  13. hyenahf

    hyenahf Formula 3
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    #87 hyenahf, Feb 15, 2018
    Last edited: Feb 15, 2018
    this is great on how you will be hiding the fuel rails and injectors inside the V and under the airbox (factory i hope). the injectors angle may or may not be optimal placement but i think its well worth it to hide all the ungainly looking injectors and wires.

    it must have to been huge challenge to package all the components and linkage with in the V under that low profile airbox. 308 motors are perched up high leaving very little room under the rear deck lid compared the inverted gearbox cars like the 348

    fantastic job btw!
     
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  15. MickyB

    MickyB Karting

    Aug 21, 2016
    64
    Hungary
    Check this! They are in a fairly good position as the nose of them in the air stream.
    I measured on a dyno ,a 4 cyl 1.6L engine with an old and this type injector and we had 3-4 hp gain with this arrangement!
    Also needed a bit less injection duration and bit different timing. I use these as many as i can from then...
     

    Attached Files:

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  16. Ferraripilot

    Ferraripilot F1 World Champ
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    That is probably the best solution I've seen. As for the Cat Cams, their catalog 'sport' cams are really outstanding and streetable but only when used with higher compression, just for reference for anyone who might be reading or considering.


    I see the R8 Bosch coils you're using, I'm using very similar Bosch coils for this 911 2.8 engine receiving similar treatment as your 308 motor. It's surprisingly easy with 911 stuff though as there is so much out there!
     
  17. hyenahf

    hyenahf Formula 3
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    May 25, 2004
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    such and impressive installation. looking forward to see what your dyno curve will look like
     
  18. waymar

    waymar Formula Junior

    Sep 2, 2008
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    Wayne
    Early on you installed a crank pulley sensor to trigger the ignition. You also have a cam sensor. Is that for ignition also?
     
  19. waymar

    waymar Formula Junior

    Sep 2, 2008
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    Just did some research. COP & DIS now I understand.
     
  20. MickyB

    MickyB Karting

    Aug 21, 2016
    64
    Hungary
    Yes we use them a lot here, and fairly cheap too. it is good up to 150hp+/coil even on boosted, more then good for this.
     
  21. MickyB

    MickyB Karting

    Aug 21, 2016
    64
    Hungary
    yes it is needed for fuel injection timing and for individual cyl trim. the ecu has to know if the cyl is on firing stroke....
     

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