4efte forged build guidance needed

Discussion in 'ENGINE' started by Harry1994gt, Nov 30, 2018.

  1. Harry1994gt

    Harry1994gt Member

    So ive fixed up all my electricals and am now at the point i can start work on my engine, i have found a local machine shop who i have spoken with today and started planning my build, what i want is to build this engine to take abuse on the track and drag strip and id like to be able to increse power over the years to keep it fun, id be heppy with 300-400hp,

    i am going to be doing alot of the work myself with the help of some mechanic friends, the machine shop asked me what i wanted done and i wasnt exactly sure, what he offered was the following

    Acid dip
    test it for cracks,
    check cylinder roundness,
    deck it,
    bore+hone it,
    new oil galley plugs and clean galleys

    and replace any core plugs and notch it out to fit the forged rods

    He said he could do whatever i want so my question is ,what do i want?

    I am in australia and plan on using wossener forged pistons and pec rods, link just because they are available and affordable

    https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com.au/ulk/itm/323165326048

    He asked what id like done to the crank and heads also which i could use advice on?

    Ive read toyota bearings are the best way to go over ACL or others but im not even sure if they are available, also what headgasket and thickness should i aim for?

    Im keen to start purchasing all the parts for this engine but i need to be sure as ill likely be buying from overseas,

    thanks again for everyones input
     
    SKINY likes this.
  2. SKINY

    SKINY Registered User +

    when i was planning on building my gt4 engine the plan was,
    block bored decked honed checked and cleaned, head checked for tolerance and skimmed, valves and seals replaced, new oil and water pump, full engine gasket set, crank checked and all bottom end bearings from Toyota, you can get them still no bother. Head gasket i was going to use the steel gasket from the later model gt4 as they can and have been proved to take it.
    wouldn't be sure about starlet head gaskets but I've read enough people have issues with some of the aftermarket ones.

    should help a bit but ultimately you want to build it to want you need so id say have a good yarn and get to know what all does what with your tuner :)
     
    Harry1994gt likes this.
  3. Padders_GT

    Padders_GT Member

    You might find using aftermarket bearings such as ACL, King etc you might not get the correct oil clearance if you are staying standard.

    Toyota do different sized standard bearings. I recently gave them part numbers of the bearings I needed and it was around £350....that was just for the mains!!

    Don't forget you might have to grind the block to allow for the forged con rods.
     
    Harry1994gt and SKINY like this.
  4. Jay

    Jay Admin

    Yeah, I dont see any red flags with the plans but the toyota bearings can be pricey. You could be fancy and lighten or knife-edge the crank but there aren't huge gains to be had from the endeavour. Still sounds cool though..

    So long as it all looks good in there a solid bottom end with forged rods and pistons is a good base to start from.
     
    Harry1994gt and SKINY like this.
  5. H_D

    H_D Paid Member

    The block does not need to notched if you are using PEC rods. I have built 3 engines with PEC rods and none of them needed notching. Also stick to genuine bearings. I would stay under 400hp as wossner piston wrist pins are only rated to 100hp per cylinder and they dont have a thicker wrist pin option.
     
    Harry1994gt likes this.
  6. Padders_GT

    Padders_GT Member

    I think it was something ridiculous like £500 for the mains and big end bearings from Toyota. I don't know how they can get away with charging that short of money, crazy.
     
    Harry1994gt likes this.
  7. H_D

    H_D Paid Member

    Full set of bearings and thrust washers was approx £250 from toyota
     
  8. SKINY

    SKINY Registered User +

    pretty sure ive seen them for under 100£ full set
     
  9. Padders_GT

    Padders_GT Member

    Strange. I only rang 3 weeks ago.....
     
  10. Padders_GT

    Padders_GT Member

    Not Toyota genuine bearings you haven't ha!
     
  11. SKINY

    SKINY Registered User +

  12. H_D

    H_D Paid Member

    I didnt use taiho bearings i used toyota bearings. I cant upload my reciept
     
  13. Padders_GT

    Padders_GT Member

    Jay likes this.
  14. Padders_GT

    Padders_GT Member

    If you want to get the CORRECT journal oil clearance the only way is through Toyota. They are the only ones who supply the various STD sized bearings.

    If you are going to regrind the crank then yes, any .25mm will be fine as you can adjust the clearance when grinding.
     
    SKINY likes this.
  15. SKINY

    SKINY Registered User +

  16. Jay

    Jay Admin

  17. Jay

    Jay Admin

  18. Padders_GT

    Padders_GT Member

    At last, someone understands me...I thought I was typing in hebrew
     
    SKINY and Jay like this.
  19. Jay

    Jay Admin

    He's not stupid he's just slow - always gets there in the end lol :D
     
    SKINY likes this.
  20. SKINY

    SKINY Registered User +

    type in whatever language you want bud for i have Google Translate :p
    my whole point is are Toyota not supplied by Tiaho ?? As they state ?
    its my condition :p
     

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