Forced Induction 91 Escort GT Turbo Build

Discussion in '2nd Gen 1991-1996 1.8L DOHC' started by DKHayes117, Jan 28, 2017.

  1. DKHayes117

    DKHayes117 FEOA Member

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    Hi all, I bought a 91 escort gt a few months ago, and I've since decided to put a turbo on it. This thread will be dedicated to documenting the process. Thoughts, comments, suggestions are welcome. I started off with a mainly stock engine. The car came with a body kit, k sport coilovers, 17 inch wheels, 2.5 inch exhaust with a header, and a fried computer. The heater core gave out and shorted the computer out. I replaced the computer and drove it a few weeks, which lead me to want to go stand alone. I installed a megasquirt stand alone and deleted the VAF using the built in map sensor on the MS. Even with this and a cold air intake, I wasn't happy with the performance. Turbo here i come!!! Luckily, my dad owns a junk yard and has 4 or 5 gt's. I pulled another 91 gt engine to build while i drive my car until I'm ready to swap. Here are a few photos of my car before upgrades and the engine I'm getting ready to build. Stay tuned for more pics!!

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  2. DKHayes117

    DKHayes117 FEOA Member

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    I got the motor completely broke down. I took the block, crank and pistons as a unit, along with the valve cover, head, and oil pan to a local guy to be cleaned. He is going to work the head, and go through the block assembly. While I'm waiting on it to get done, I ordered a new Mullen oil pump (USA made), and an Aisin water pump. I also ordered 515cc fuel injectors and a Kemso high flow fuel pump. I can't wait to get the block back so I can start assembly!
  3. DKHayes117

    DKHayes117 FEOA Member

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    Fuel Pump Upgrade

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  4. DKHayes117

    DKHayes117 FEOA Member

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    I'd like some opinions on the turbo i should use. I have located a new vj20 manifold as well as a new vj33 turbo. I dont know if itll direct bolt up to the vj20 manifold. I figured it should. Vj20 turbos are pretty much impossible to find from what ive found. I found vj11 but its very pricey. I could build a custom adaptor and use a t25 or t3 turbo. Im looking to manage the 210hp mark at the crank. Any comments suggestions or ideas?
  5. neuspeedescort

    neuspeedescort FEOA Member

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    make your life simple and just do a small t3 to begin with. skip the VJ series. if you have access to a second motor just get a turbo header built. if you're looking at only wanting 210hp. you're going to be very surprised. the gtx will do 210 to the wheels with the proper tune and bolt-ons.
  6. DKHayes117

    DKHayes117 FEOA Member

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    you've convinced me to not go with the VJ turbo, after many considerations that is. I think I am going to go with a t3 Turbonetics turbo with .48 trim. This t3 turbo is rated for 150-325hp. Should be perfect for my +200hp project. Also I'm going to use the vj20 header, it'll be the easier to modify the mounting plate on the header than make an entire custom header. Note that I will modify the header myself, I have all the metal working equipment and skills to do so. While I'm working on my engine, I'm also customizing the interior and exterior of the car. I'll upload some photos this week when I can.
  7. DKHayes117

    DKHayes117 FEOA Member

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    I need some enlightenment on the bp engine block. I'm trying to figure out the difference between the bp-1 and bp-2 blocks. I've done a lot of searching online, but I keep getting mixed information. Can anyone one tell me the real story? I've seen that the bp2 block is the bpd, but i'm not convinced this is the case. Also can you add the mazda MBSP (main bearing support plate) to the blocks. My main caps have the threaded holes for the mbsp. Thanks!
  8. Ocramzeej

    Ocramzeej FEOA Donator

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    I don't know the answer you're looking for here, but I'd check out clubprotege, they've got a pretty good repository of BP experts there.
  9. DKHayes117

    DKHayes117 FEOA Member

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    Haven't posted in a while, been busy trying afford all my parts. I'm getting really close to start putting every thing together. Recent purchases includes a Mishimoto intercooler, brand new ss turbo header from the 323 gtx, remanufactured garrett t3/t4b turbo .50 ar compressor 50mm inducer 72 mm exducer, .48ar exhaust 65mm inducer 46mm exducer. rated for 200-380hp, a ss t3 flange for adapting manifold from vj20 flange, and a full gasket/bearing kit to put the motor together. Also have 01 miata 10.5:1 turbo pistons, and CXracing h beam rods. I'm getting really itchy, can't wait to get this thing in!

    upload_2017-5-12_22-10-9.png
  10. neuspeedescort

    neuspeedescort FEOA Member

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    what do you plan on tuning it with? 10.5:1 compression and a t3? sounds like a mix of detonation and scattered bottom end components. i honestly wish you the best but that kind of compression and CFM is going to take some real dyno time to get dialed in.
  11. DKHayes117

    DKHayes117 FEOA Member

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    Its a small t3 turbo plus im only going to run 10lbs of boost. Turnsout the pistons are 10:1 and are listed as bp z3 turbo pistons. Bpz3-11-sa0. Still think its too high! Escort is 9 to 1 right?
  12. neuspeedescort

    neuspeedescort FEOA Member

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    as long as you keep the boost low. but the thing is boost is a secondary number CFM is the real factor. it's like what HP is to torque. 10:1 is better. i also reread you other posts and it looks like you have megasquirt. that will be good.

    i will be running 9.5:1 in my car once built. however i have a rather large turbo. i also have haltech ems. the only reason i went 9.5 instead of the stock 9.2 is piston availability and my hot side is a .63. so i will be getting hit by a freight train at around 3800 rpms.
  13. DKHayes117

    DKHayes117 FEOA Member

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    Im going to ask Danny O'day what he thinks. He is a known drag racer who lives about 20 min from me. He really knows his stuff, and I"m sure he can give a definitive answer on the matter. Not that I don't believe you, more info is always better.
    neuspeedescort likes this.
  14. DKHayes117

    DKHayes117 FEOA Member

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    Danny advised me to go lower on compression like you said. I guess I'll go 8.5 to 9:1. I really don't want to go forged pistons due to price, cylinder wear, cold slap, and oil consumption. I just don't know if stock cast pistons will stand the boost. Only going to run 10 psi though. On another note here are some more pics...
  15. DKHayes117

    DKHayes117 FEOA Member

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    forged rods with arp2000 bolts
  16. DKHayes117

    DKHayes117 FEOA Member

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  17. DKHayes117

    DKHayes117 FEOA Member

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  18. DKHayes117

    DKHayes117 FEOA Member

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  19. TheSilverShredder

    TheSilverShredder FEOA Donator

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    Stock pistons should be fine. Carlos at BP Performace Specialty made 500hp on stock block. You'll blow up the transmission before you have trouble with the block :)


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  20. TheSilverShredder

    TheSilverShredder FEOA Donator

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    Also, where did you find the flange for GTX/VJ20 to T3?


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