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Twin Turbo Honda

Discussion in 'Forced Induction' started by Canuck 93 Civic Si, Mar 12, 2003.

  1. Canuck 93 Civic Si

    Canuck 93 Civic Si Senior Member

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    Im about to get myself a new engine to build up on my spare time but i havnt been able to find a suitable T3 from the scrap yards so i was thinking, why not put on two small tubos in somehow? It will mean more tube bending and welding ( no problem ) but what do you all think? Will there be any forseeable problems? I was thinking of arranging them in series like the 3rd gen Rx7 so that there is very little lag and i can get the big boost that i want when i get moving along. And i do like the sound of a Twin Turbo Civic.

    I could call it the TTC and get a sticker that says Ride the Rocket :p . Toronto people will know what im talking about there.
     
  2. asmallsol

    asmallsol Super Moderator

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    TT's in a civic or any Inline engine is not the smartest idea. You will not see as big as gains and it will run pretty un-effecintly.
     
  3. Canuck 93 Civic Si

    Canuck 93 Civic Si Senior Member

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    How do Skylines do it so well?
     
  4. closedhood97

    closedhood97 Member

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    I'm with asmallsol. The better plan is twin-charging. A roots type supercharger like the JRSC and a large turbo. The blower makes boost at low rpms and then the turbo spools up and make tons of top end. I've seen a dyno pull of a type r make 450hp/450tq with over 400 ft-lbs by 5000 rpm. The packaging is alot easier and twin turbos don't make sense on a I-4 engine. If you have the money the twin-charger setup seem badass but a well-engineered turbo setup would make more power than I could ever use.
     
  5. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Uh.. a good turbo setup will make that exact same amount of power without a supercharger to restrict it at higher revs. Been reading too many magazines lately huh?

    :kick:
     
  6. Canuck 93 Civic Si

    Canuck 93 Civic Si Senior Member

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    Ya I saw that one too. It did seem pretty cool bet what Calesta said makes allot of sense. It would be kinda hard for the poor turbo to push past those rotors in the blower.

    I just did a bit of looking and found a video clip of a TT Civic pulling a 10.59 pass. :) pretty cool but i couldnt find anything else about the setup. :(
     
  7. liquid00meth

    liquid00meth Senior Member

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    if im not mistaken the advantage of a TT is having a separate turbo for each cylinder line in a V engine. In an inline engine, yes your getting more CFMs, but it's inefficient and does the same thing that could be accomplished with a bigger hybrid turbo.


    This is my thinking, I could be wrong.
     
  8. Canuck 93 Civic Si

    Canuck 93 Civic Si Senior Member

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    Someone tell me something encouraging..... please :)
     
  9. SolReaver

    SolReaver Senior Member

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    2 turbos is double dA bLinG bLang y0!!!1!1

    ~WeRd~
     
  10. K2e2vin

    K2e2vin Senior Member

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    where did yall get TT on an inline is bad??? yall think the design of the engine effects the turbo but the piping on the v engine would be different on each side unless you are using two custom turbos that oppose each other when facing the same direction. The design of inlines make them more powerful than V engines. but the best configuration is a flat engine, or a rotary.

    The whole point of the TT is for a faster spool up, but there will be added weight and space would be cramped.

    For the supercharger and turbo setup, its impossible to use a roots blower. You can use a centrifugal blower with some sort of 3-way check valve.
     
  11. liquid00meth

    liquid00meth Senior Member

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    :withstupid:
     
  12. Canuck 93 Civic Si

    Canuck 93 Civic Si Senior Member

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    Thanks yo!

    BTW all things considered the most powerfull engine configuration is a radial and the V comes in a close second, then flat. Dont get me wrong honda inlines still own, but just look and the Vs honda made in its F1 glory days... 1000 BHP anyone
     
  13. TommyTheCat

    TommyTheCat Gonzo Scientist

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    Dude, you can't compare an f1 engine (of any design) to a street-legal engine. It's like saying "inline is bad because dragsters with v-10's, turbo, nitrous, and only eat alchohol at 10 gal/sec run at 3000+ hp".

    And TT's on skylines are stock. Just like a supra, and just like an FD Rx7. Everyone that drags switches to a single unit turbo(unless it's in a V config).
     
  14. Canuck 93 Civic Si

    Canuck 93 Civic Si Senior Member

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    Im not comparing F1 technology to street cars, im simply stating the fact that all engines arent created equal ( duh ) and the setups with the best power to weight ratio are:

    1st Radial
    2nd Vee
    3rd Horizontally Opposed
    4th Inline

    This is of course not considering elements such as VTEC, FI or NOS but the point is some engines are able to produce more displacement without adding on that much extra weight. i.e and extra crank journals for one or two additional cylinders.
     
  15. pissedoffsol

    pissedoffsol RETIRED

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    a TT setup on a honda motor is pointless.

    What makes a turbo boost? exhaust flow. if you split that exahust flow in half, you double your spool time.
    so now, you lag to 5-6000 on a small turbo, just because there's not enough flow to push it.
     
  16. K2e2vin

    K2e2vin Senior Member

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    i guess youll have to use even smaller turbos, but i have already seen TT on a honda, one on the street to. The whole point of TT is get very high pressure faster.

    Dragsters dont use single turbo, autoX does. When using TT the sudden burst of pressure causes traction loss.
     
  17. pissedoffsol

    pissedoffsol RETIRED

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    ummm no. if you go to an even smaller turbo, your still going to have less potential for output.

    TT is for 6 cly's and over- and even better on V-style motors.

    i personally have ordered the equivelent of a t3/t61 turbo. t3 side for decent spool, and a t61 compressor for huge total output. 600 horse, here i come.
     
  18. Toxis

    Toxis Junior Member

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    That sounds like a great turbine you found there pissedoffsol, where'd you happen to find one of them? 600hp is NUTS in a honda but not crazy. hehehehhe
     
  19. blitzcivicsi

    blitzcivicsi Junior Member

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    i think that the twin turbo would be decient for performance but for show use it will be bad ass and it would be mainly for looks and would score you some good points
     
  20. Sprocker

    Sprocker Senior Member

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    No offense but looks come second to performance in my book! I admit I also have spent too much on looks and but the performance always takes priority at least for me. But good luck either way!
     
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