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need advice for my turbo integra

Discussion in 'Integra' started by 98turboteg, Jul 25, 2007.

  1. 98turboteg

    98turboteg 98turboteg

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    hey guys i just finished turbocharging my 96 integra need some advice on how much boost to run. the motor is built: boared out .020 over, forged low compression pistons eagle rods crower cams titanium retainers and duel springs, block gaurd. and an ebay turbo kit. 60 trim. any help will be apreciated. thanks
     
  2. eg6sir

    eg6sir Supa Mod Moderator VIP

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    first thing.. get a real turbo kit and ditch the eBay junk..
     
  3. welfare

    welfare Ancient Member

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    /\/\Ouch :) he has a point tho, that turbo probably wont last very long

    Anyway, start it at around 8, don't go above 15 without engine management or you will have a bad day.
     
  4. civicious

    civicious FüK-VTEC VIP

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    First of all, nothing's all that wrong with ebay turbo kits. The main problem with them is that the people who buy them usually don't know everything that they need to know in order to properly set up a turbo kit, and in reality would probably ruin a more expensive kit as well. Most ebay kits don't come with any type of oil pressure restrictors, and when they're hooked up see the full oil pressure from the engine...which will cause the seals to blow out. First things first, buy yourself an oil pressure restrictor for $12 off of Ebay, and save your turbo. There's a guy on honda-tech/d-series.org running 10.80's on a turbo'd D16Y8 EG running an Ebay T3/T4. I'm personally going to be running an Ebay bigolfuckin'turbo on my non-vtec SOHC build.

    Now, granted, the turbo isn't the only thing included in the Ebay turbo kit. The manifolds tend to be cheaply assembled (however nothing that re-welding and bracing won't fix, which is free if you can weld and cheap if you take it somewhere like a muffler shop), and everyone has horror stories about how their friend's friend read online that someone's SSAC manifold cracked. I've personally seen an Inline Pro manifold crack and a guy's wastegate go bouncing down the track behind him. Again, it's a matter of 'if you set it up RIGHT, you can make it work'.

    Ebay BOV's are great, they're cheap and do what they're supposed to. Most of them, however, have 2 springs (a thick one and a thin one). You'll want to remove the thin one; to be 100% honest I'm not quite sure why, but I've learned from MANY hours of research online that they function better with the smaller spring removed.

    The only thing I wouldn't use from the ebay turbo kits is the wastegate. Those things just flat out suck. :p


    NOW, on to your original question: how much boost can you run. You can run as much boost as your turbo will make; if it's an Ebay kit then more than likely it's internally wastegated, and if so it'll give you 7-8psi without a boost controller. You can buy a manual boost controller, or make one yourself (look on c-speedracing.com, they have a great writeup on making a DIY boost controller for cheap). With your motor built like you're saying it is, you should be able to push a pretty decent amount of boost IF YOU HAVE IT PROPERLY TUNED. Especially considering that you've got a different compression ratio than stock, and you have different cams than the stock ecu program was designed for, you NEED to have it tuned; otherwise chances are you're going to toast your engine. The easiest /best thing to do would be to find a shop in your area that does dyno tuning and contact them, tell them your setup, and ask their advice. You'll probably spend around $800 or so for the tuning and decent engine management (i.e. Hondata), or the tuner might use a program like eCtune or Crome, which would be a bit cheaper. It all depends on the tuner's preferences.

    Whatever you do, with your setup do NOT try to run a stock ECU and a VAFC or an FMU, or any other hack like that; like I said, that's a sure-fire way to destroy your engine.


    ...and to the guy who said to not go above 15psi without any engine management, if you can get over even 5 psi without any type of modification to your fuel or ignition, I'll buy you a trophy. You can't do it. You just can't.
     
  5. welfare

    welfare Ancient Member

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    I said without engine management, not without nothing, with slightly bigger (DSM) injectors and an FMU you can get to 14-15 before the headgasket or someting else gives out.

    Other than that you put out alot of good information and I agree with all of it, keep up the good work man
     
  6. civicious

    civicious FüK-VTEC VIP

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    15psi with bigger injectors and an FMU on an otherwise stock ecu map is a recipe for disaster.
     
  7. welfare

    welfare Ancient Member

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    Im not disputing that, I'm just saying it can be done :)
     
  8. 98turboteg

    98turboteg 98turboteg

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    yea forgot to mention iv got 550 rc injectors, its dyno tuned and right now im running 6lbs. was thinking of raising it to 12 though
     
  9. 98turboteg

    98turboteg 98turboteg

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    and an external wastegate
     
  10. welfare

    welfare Ancient Member

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    explain dyno tuned, what management do you have?
     
  11. civicious

    civicious FüK-VTEC VIP

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    If you want to raise the boost after you've had it tuned, you're going to need it re-tuned.


    And like I said above, if you don't already have an oil restrictor, GET ONE. They're ten bucks, and they'll save your turbo.
     
  12. 98turboteg

    98turboteg 98turboteg

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    iv got about 4 hours of dyno time. its putting 211hp down at 5500 rpm's at 6lbs. as for managment i turned my car to obd1 and put a chip on the computer and had the tune guy do the rest. as you can probably tell i dont know to much about all this managment system stuff. first honda, sorry. o yea and the guy forgot that a had a built motor so he tuned it thinking it had stock internals. not sure if that makes a diffrence but im pretty sure it does so when i raise the boost hes gonna retune everything. o and yea i do need an oil pressure ristrictor. if you can think of anything else i might need please let me know. thanks
     
  13. 98turboteg

    98turboteg 98turboteg

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    anybody... anybody...
     
  14. SlushboxTeggy

    SlushboxTeggy It's only stupid if it doesn't work VIP

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    Not a bad first Honda at all. My first Honda is still automatic after all these years. Vodka and Toys>Car unfortunately. I like instant gratification.
     
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