Gen 3 intake on a Gen 2 - Air routing question

DrumrBoy · Jun 24, 2011

I believe I can exchange 70 ftlb of torque for 100+ HP on the build being done by switching to a Gen 3 intake from the long tube torquemonsters on the Gen 2. So I'm gonna give it a try.

Has anyone done this conversion (or even seen such enough to know how air is routed to the Gen 3 intake under the hood of a Gen 2 car?

I'm thinking its pretty straightforward, just a round (oval?) K&N on the snout with enough downpipe to get the air cleaner close to the NACA duct.....but then again it might be more complicated for reasons I'm not appreciating. E.g. One might have to create a new airbox to surround the Gen 3 inlet or something....)

Anyone who's seen it, please advise. (I don't have the motor back yet, just trying to prepare)

Thanks

JohnnyViper · Jun 24, 2011

interesting, one possible pitfall is a change in air fuel ratio

DrumrBoy · Jun 24, 2011

That would be possible if you just swapped intakes.....this is a GTSR motor that's being rebuilt from the block up, new cam, heads, valvetrain, new fuel system, new intake, new tuning.....so they'll get the A/F worked out fine.

On this end I have a Gen 2 car with no engine and an HMS CF airbox that worked fine for the Gen 2 intake, but will have to come out to accommodate the Gen 3....I'm trying to figure out whether I need to fab something or just snorkel the Gen 3 intake with a filter.

KingSnake97 · Jun 24, 2011

You can fab up a nice one. I have the gen 3 on my gts . I have to get you some photos. When I had the paxton s/c it looked sweet, but know I'm going a difrent route. If You stayed in illinois as I do try Nastyperformance.com they can custome make you one also.

DrumrBoy · Jun 24, 2011

Thanks KingSnake, I used to be in Park Ridge but Atlanta is a lot warmer in the winter ;-)

If you can scare up some pix I'd really appreciate it. I'm trying to get the car ready for the engine when it arrives....and get it back on the track ASAP.

KNG SNKE · Jun 24, 2011

It has been done on here many times before but I am having problems finding the links to the photos.

Russ M · Jun 24, 2011

Assuming this is a turbo car then its just a matter of changing your charge pipe post intercooler. If its N/A then you will be lucky to get 20hp and loose considerably more torque.

DrumrBoy · Jun 26, 2011

Its NA but I'm not just swapping intakes....heads, cam, rotating assy, tune etc. I'll post before and after numbers but with everything else changing it wont be an apples to apples comparison. I'm just trying to figure out the geometry of the intake tubing (which'd be easy if I had the engine in the same place as the car)

KingSnake97 · Jun 27, 2011

DrumrBoy do a youtube search for "GREAD Tuning Viper Build walk around on Dyno " Mine looks like that one once I get a working camera I will get you some ASAP.

Russ M · Jun 27, 2011

DrumrBoy said:
Its NA but I'm not just swapping intakes....heads, cam, rotating assy, tune etc. I'll post before and after numbers but with everything else changing it wont be an apples to apples comparison. I'm just trying to figure out the geometry of the intake tubing (which'd be easy if I had the engine in the same place as the car)

Ok this helps.

A nice setup would be to run an oval pipe to the block off plate that sits on top of the fascia. Cut a hole in the plate just big enough to run the pipe through and have a large air filter just in front of the radiator. It would take a good fabricator to make something like that but it would get you cool air and fit nice.

Gen 3 intake on a Gen 2 - Air routing question

DrumrBoy

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DrumrBoy

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KingSnake97

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Russ M

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DrumrBoy

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