95.5 Toyota Tacoma 2rz boosted

Discussion in '1989-1995 Build-Up/Project Threads' started by TRfknD, Feb 2, 2010.

  1. Predracer

    Predracer Toyotaholic

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    Too awesome man! I can't wait to finish my 2rz build.
     
  2. TRfknD

    TRfknD Veteran

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    I can't wait either!!!:evil: I love seeing the 2rz swapped into other vehicles.
     
  3. rajzswap

    rajzswap Addict

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    Looks pretty quick man. Any runs down the track yet?
     
  4. TRfknD

    TRfknD Veteran

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    Not yet bro. But, a few of us are trying to go the 1/8 track here in Houston on the 28th. Hopefully the June 4th we can make it to the 1/4 mile track! I'll post vids and times when we head to the track.:waytogo:
     
  5. rajzswap

    rajzswap Addict

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    I still need to go to the track myself with my truck. I need better tires first before I do so to be safe. Looks good though man I like it. How much power can those stock 2rz blocks take before bending a rod or have engine failures?
     
  6. TRfknD

    TRfknD Veteran

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    Yes Sir I understand on getting better tires. Right now I'm at 7psi and planning on turning it up at the track up to 10psi. Stock 2rz blocks are good to around 10psi near 250-280hp maybe. But, replace the head gasket to a cometic hg and arp headstuds for some insurance and you are good to around 15-18psi on a good tune.

    There are a few guys on customtacos putting down 300-350 hp on a stock block. And some haven't even replaced the hg and head studs. I personally think its all in the tune. Not bad for a little 4cyl! hehehe

    You can check some vids on youtube on a taco putting down 300+ hp on stock internals and stock hg and head studs. I think the reason why we stick with the 2rz motor is due to the availability at junkyards and price. Much easier than finding a 1jz or 2jz.
     
  7. IronNam

    IronNam Grand Toyotaholic

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    I definitely approve of this.

    My end product shall have IFSandIRS coilovers going on. but it'll be a LONG time.... :tears:

    anyway, great build nonetheless
     
  8. TRfknD

    TRfknD Veteran

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    Thanks for the compliment! I can't wait till I get back from the sand box and I haven't even left yet! lol But, it will be fun when I get back and put on a bigger turbo and some internals for more BOOOOOSSSST! :evil:
     
  9. IronNam

    IronNam Grand Toyotaholic

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    how HUGE of a turbo do you plan to run? :D
    it'll probably suck in stray dogs and birds!
     
  10. TRfknD

    TRfknD Veteran

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    I might either go with the GT3076R or GT3582R. Somewhere along these turbos. I am going to replace the valve train, pistons, rods, and buy a good set of cams. I want to be able to up the boost to around 20-25 psi. But, drive it daily around 12-15psi. It should be fun! :evil:

    Vid of of the GT35 turbo:

    http://www.youtube.com/watch?v=-Ca0zhcDKlI

    Vid of GT3076R:

    http://www.youtube.com/watch?v=F9VSOJJBX_s&feature=related
     
  11. rajzswap

    rajzswap Addict

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    Go at least a gt35 if you are building the motor. You benefit more for a bigger turbo so you dont max it out. Theres a reason why we go turbo, More power so you might as well get a bigger turbo. Good videos though, Ive never got a chance to ride in a turbo tacoma but can imagine.
     
  12. Raffaelli

    Raffaelli Toyotaholic

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    Hey TR,

    im just curious, would a 3rz benifit greater than a 2rz?

    I dont know anything about them other than ones like .3L stroked. Care to share some light :lol:
     
  13. TRfknD

    TRfknD Veteran

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    Thanks for the recommendation. I love my turbo tacos! :evil:
     
  14. TRfknD

    TRfknD Veteran

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    Yup the 3rz motors have a longer stroke but isn't worth it. People who have swapped in or boosted the 3rz have experienced problems with rod knocks. It will hold for a while but the bottom end tends to fail big time.

    Here's a link to a guy who went through two 3rz motors trashing the bottom end. Check it out.

    http://www.customtacos.com/forum/showthread.php?t=141949&highlight=3rz

    That's why the fastest 2rz on the planet holds up good. Check out Luis Corujo from Paradise Racing.

    http://www.youtube.com/watch?v=QJ2opSYWBz4
     
  15. rajzswap

    rajzswap Addict

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    So, the 2.7l 3rz motor is practically a 2.4l 2rz but with the exception of more stroke and longer rods right? if true, then of course the STOCK 3rz will be weaker since the rods are longer and not made for boost, obviously. the 2rz is holding up better because its the opposite and has shorter rods and less throw in the crank making it a little bit more stronger in that area right?

    if you have a 3rz and a 2rz built with the same components the 2rz would still be stronger because of the rod length and less stroke meaning less moving parts being more balanced and more efficient then the 3rz.

    But the principle goes with all motors. Engines are just big air pumps with gasoline explosions in the combustion chamber, so the more heat, compression, and fuel being added will put more stress regardless in all areas of the motor, not just the rods and bottom end.

    (btw im not being a dick im just using theories on the information above to figure out the facts and learn/teach about this motor) :waytogo:


    Good videos though to show the true strength and power that toyota can offer. Has there been other 3rz motors that have been fully built and boosted and not explode?
     
  16. TRfknD

    TRfknD Veteran

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    No worries no offense taken. It's good information for everyone here. It's been discussed and beat to death on the customtacos website. So just stick with the 2rz if anyone is thinking about a tacoma motor swap.

    Yes there are a few 3rz motors that have been built. I know Lc engineering has a vid on youtube. Also, the peeps down under (Australia) boost the crap out of the tacoma motors. I think there are a few vids on youtube as well.
     
  17. rajzswap

    rajzswap Addict

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    Yeah I have read over some discussions on customtacos.....some things get out of hand over there sometimes :verdict_in:
     
  18. planemos

    planemos Toyotaholic

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    I used to have a 2.7L 4x4 Taco and that thing was awesome. For an engine you are keeping stock it rocks. Forged crankshaft I believe (Toyota's solution for the longer stroke?)
     
  19. IronNam

    IronNam Grand Toyotaholic

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    i wonder if you put 2rz shorter rods in the 3rz, that'll lower compression.... :D
     
  20. rajzswap

    rajzswap Addict

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    wouldnt work unfortunately. it would lower the compression so much that it probably wouldnt start and also be so short depending on length, that the rings and piston might come below the cylinder chamber lol. that would suck.
     

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