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Alternative Port EFI Intakes This board is for tech discussions and questions about aftermarket port EFI such as the HSR, MR, SR, BBK, FIRST, etc.

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Old 04-27-2009, 06:18 PM   #251
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Re: single plane EFI manifold

In general, it will make things work better... OTOH, if you're not great at tuning you may not notice the difference and even if you do, there is always the concern of things coming loose inside the intake tract and getting ingested into the engine.
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Old 04-27-2009, 07:36 PM   #252
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Re: single plane EFI manifold

Well I dont see how the divider will break loose I just want to be on the safest side of things when I put some boost at this motor. I want the best distribution possible and from my research, the single plane is the way to go. Front mounted TB setups always have a distribution problem unless you make a custom tapered plenum which I dont have ability to do and dont want to pay for a custom sheet manifold
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Old 04-27-2009, 08:21 PM   #253
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Re: single plane EFI manifold

well, the divider doesn't stand much chance getting ingested, but whatever you use to locate it might. Also, it wouldn't take much motion from a divider like that to totally screw up airflow to a few cylinders.
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Old 04-27-2009, 09:08 PM   #254
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Re: single plane EFI manifold

So basically no matter what you try to do, your damned if you do, damned if you dont?

I guess i'm just gonna run a typical elbow/tb setup and let it eat. Try to tune the leanest cylinder
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Old 04-27-2009, 11:11 PM   #255
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Re: single plane EFI manifold

Why wouldnt you just weld in the divider? no change of movement or ingestion, i wouldnt do it any other way. As for the TB id use a 58mm oem style, not the LS.
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Old 04-28-2009, 07:41 AM   #256
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Re: single plane EFI manifold

I'm leaning towards the elbow with the 58mm TPI tb i already have. I have heard a few quality issues with this elbow tho, but we'll see
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Old 04-28-2009, 08:56 AM   #257
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Re: single plane EFI manifold

Quote:
Originally Posted by Orr89RocZ View Post
I'm leaning towards the elbow with the 58mm TPI tb i already have. I have heard a few quality issues with this elbow tho, but we'll see
If I decide to take the blower off the car I may use the edelbrock elbow for the LSx throttle body.

I like the blower but, it doesn't create a whole lot of boost, and with the air filter positioned next to the header, and the static compression ratio of the motor I often wonder if the car wouldn't make as much power with just more advance and the filter located in the front picking up cool air.

Though people have said it will make more power with the blower, I still wonder. I should take it out tonight and do a wot blast to 6000 to get an idea of how much boost this powerdyne is actually making.

This is of course, assuming the car is not sold this weekend. I'm half hoping it is so I can start a '67 firebird, or '69 vette project.

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Old 04-29-2009, 12:18 AM   #258
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Re: single plane EFI manifold

i made a post a while back about that "hot air intake" the chargers pick up. probably shoulda put it in the fab board but oh well. http://www.thirdgen.org/techboard/po...-warm-air.html (prochargers like warm air!)

what problems are people having with the elbows?
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Old 08-27-2009, 05:33 AM   #259
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Re: single plane EFI manifold

Quote:
Originally Posted by kairles View Post
yeah its the low profile elbow in black

I WANT
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Old 08-27-2009, 09:32 AM   #260
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Re: single plane EFI manifold

Does that thing fit under the stock hood OK? I have that manifold, but with a low profile carb hat and 1000 CFM progressive TB, and I had to hack out the supports to get it to clear, especially where the MAF is. Gets kinda tight as teh hood slopes down.







Last edited by dimented24x7; 08-27-2009 at 09:41 AM.
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1992, 406, air, camaro, cold, efi, half, intakes, lt1, plane, putting, sbc, single, top, z28
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