How were the 365 GT4, 400i and 412 engines mounted in the chassis? | FerrariChat

How were the 365 GT4, 400i and 412 engines mounted in the chassis?

Discussion in '365 GT4 2+2/400/412' started by miurasv, Jan 12, 2017.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. miurasv

    miurasv F1 World Champ

    Nov 19, 2008
    10,619
    Cardiff, UK
    Full Name:
    Steven Robertson
    Do these engines have similar engine mountings to the earlier 12 cylinder engines with 4 projecting feet extending from the side of the cylinder block or mounted in another way? Also are there any mounting points at the front and back of the engine that affix to the front firewall/bulkhead and front of the chassis? Thanks in advance for any replies.
     
  2. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
    14,382
    Canada
    Full Name:
    Newman
    2 mounts only that bolt onto the engine and not like the early V12's with cast in feet. Not set up to be a stressed member either.
     
  3. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
    14,382
    Canada
    Full Name:
    Newman
    I think its interesting that they only have a reaction rod on the bottom of the trans and rely on the 2 engine mounts, 2 rear diff mounts and torque tube to support the entire powertrain.
     
  4. miurasv

    miurasv F1 World Champ

    Nov 19, 2008
    10,619
    Cardiff, UK
    Full Name:
    Steven Robertson
    Fantastic, Paul. Thanks for your reply. I was hoping you'd see my question. My next question was going to be if these engines could be used as a stressed member. You must be psychic ha! These engines aren't really suitable to use in a P4 replica using the P4 chassis plans then due to the very fact that the P4 engine has mounting points on the cylinder heads that affix to the firewal/bulkhead tubes, 2 each side of the cylinder block and at the back of the engine as the engine is designed to be part of the chassis bringing strength to the structure.
     
  5. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
    14,382
    Canada
    Full Name:
    Newman
    I figured you were going there because the Norwood P4's use a 400 engine! Not sure how its mounted or what box is used but I would like to know! The cylinder heads do give the right look though even if its just cosmetic.
     
  6. miurasv

    miurasv F1 World Champ

    Nov 19, 2008
    10,619
    Cardiff, UK
    Full Name:
    Steven Robertson
    I was actually wondering how they overcame this problem when RM Wilson Engineering built the P4 replica that is said to have used the P4 plans to make their much publicised car using the 365 GT4 2+2 (or 400) engine as the way the engine is mounted is critical in bringing strength to the structure. They used a ZF box I believe. Perhaps they just used thicker tubing at the back?

    Here is the car: R M Wilson Engineering
     
  7. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
    14,382
    Canada
    Full Name:
    Newman
    It looks great (knowing nothing about a P4) but I would've added two dummy coil wires and ran them somewhere rather than leave the coils open like that. Would be nice to see the chassis in detail from underneath.
     
  8. miurasv

    miurasv F1 World Champ

    Nov 19, 2008
    10,619
    Cardiff, UK
    Full Name:
    Steven Robertson
    I see. Yes, it would be good to see how the engine is actually mounted. The P3 and P4 chassis had thinner tubes than earlier cars and used the engine as part of the structure so if the P4 chassis blueprints were to be used, a suitable engine designed to be a stressed member with mounting points in the critical areas would have to be used. Otherwise the required strength won't be achieved I'd have thought. Thanks again for your replies.
     
  9. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
    14,382
    Canada
    Full Name:
    Newman
    They would've had to make changes to the chassis to accept the engine and make it contribute to the structure so it cant look the same plus you pointed out the bellhousing bolt pattern on the P vs F1 engines.
     
  10. boxerman

    boxerman F1 World Champ
    Silver Subscribed

    May 27, 2004
    19,589
    FL
    Full Name:
    Sean
    What does an original p4 weigh?
     
  11. miurasv

    miurasv F1 World Champ

    Nov 19, 2008
    10,619
    Cardiff, UK
    Full Name:
    Steven Robertson
    Dry weight 792 KG.
     

Share This Page