Rep Power: 239

im in the process of installing a turbo kit , and im concerned on the plastic intake manifold. i have heard of them cracking open. does any one have eperience in the max or safe zone of the factory intake is ? not going crazy on the boost,but putting the Q; out there ,because im sure ill keep going on upgrades down the road.just need the know the limitation of the factory intake. thank you .

 
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Paul from Dezod said one of his customers cracked his intake mani at like 12psi, i wouldnt bmp up the pressure until Dezod comes out with their intake mani

 
Rep Power: 608

I wouldn't worry about the stock IM cracking. If you are going to building somewhat high hp motor, then you should be more worried about flow.

 
Rep Power: 241

just find yourself a Y8 IM and you wont have to worry about it...or even an aftermarket Y8..

i have a separate question....since the Y8 mani can be made to fit...i wonder if any other D series mani will fit? i know on the D16A6 mani the water jacket is square i believe but i put a Y8 on my A6 and it worked fine.

 
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^^^^ I agree

 
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what is a y8 and how do you modify it to fit my em2. let me know if someone knows how to make this work. thanks

 
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It's the stock intake manifold from the D16Y8 (96-00 Civic Ex motors, IIRC)


It's pretty straight forward...Here's a link to a DIY
7th Generation Civic Intake Manifold Swap by Chimera

 
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I have seen the stocker crack on 10-12 PSI. So be aware Joe.

 
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anyone have word when using the stock y8 throttlebody, if you will need an "extender"?

 
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i was reading today that the y8 may not work with the d17a2 head and will only work with the d17a1. is this true?

 
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Please look at the link I posted before....And pay attention to the wire loom cover

 
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I've been contemplating recently about modifying the stock intake manifold to withstand more pressure from boosted situation. What If you were to wrap a continous strip of fiberglass around and around your manifold and then epoxy resined the entire thing to the manifold? I think it would be a good way to strengthen the manifold. (Now you might think I'm crazy, know this: Researchers are developing ways to make bridges for cars with fiberglass composite cores. Seriously, I saw it on discovery.)

 
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sounds good, but making it bond to the intake would be required i would think and that may be difficult to do.

 
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so do u recon that 8 psi should be ok on the stock mani for a daily driver

 
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Yes plenty of ppl boost at 8psi with no issues daily driven

 
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sweet

 
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any one here on this forum cracked a d17a2 plastic manifold from being boosted ? and if so , what psi are you running and hp. im going to be tuned at 12 psi and im alittle concerned about the intake mani. does any one make one ,and at a far cost. please help.

 
Rep Power: 279

actually i was discussing this with a local shop...plastic is actually the wave of the future maybe cause you dont have to port anything and its smooth, maybe just thicker plastic is needed..

and im sick of this y8 bullshit, why does everyone use a y8, the z6 flows a hell of a lot better...