Admin 3" Long Tube Intakes
 

Anyone have any experience with the Admin 3" Long Tube Intakes?

AdminTuning Infiniti G37 Nissan 370Z VQ37VHR 3" Long Tube Intake System

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I was talking to Eddie from Real Auto Dynamics about CAI today and he mentioned this system. I hadn't come across it from my research here on the forum, but after he mentioned it I did come across a post or two. Hoping to hear more about it.

I'm really SHOCKED given how everyone on this forum says: "the stock airbox is engineered to flow very efficiently"

Which makes me wonder:

A) The stock airbox is bs and so are the above claims

B) The Tune is really where the power is made, which could be accomplished on both the stock airbox with some dropin k/n's, and if so, then whynot just skip the intake and just get a tune entirely, especially if you can get 85% of the same result and keep the stock airbox???

C) An aftermarket intake actually is NEEDED with a tune in order to see real gains.

Someone please educate me on this, as last time I looked under the hood, it's not an 8.0 ltr Viper motor sitting there.

I don't think most people on the forum think that. If you look at the list of performance addons by forum members it is obvious that a CAI is one of the first to do.

Actually, there's been more than a few dyno sheets that show that drop in filters and maf tubes paired with the stock airbox will get you 90% of the gains of a long tube intake, at 25% of the cost.

I agree with your reasoning Chuck. This topic is about the Admin 3" long tubes however and I think you can't get the 90% of the gains with drop ins and maf tubes. I heard big numbers were gained with these even over other popular CAI's.
They are pricey though as you mentioned.

The problem with a 3" intake is the bottleneck at the throttle body. I'm sure these would show gains if you hog out the entire intake tract and then tune for it. Otherwise I can't see them doing much beyond a standard diameter CAI.

There is a fine line between velocity and volume. Go too big and loose both. Like the Chuckster said. You will have a bottle neck at the throttle bodies. Think the best bet to use these with enlarged throttle bodies to take advantage of them.

I see the EPS Throttle Body Upgrade kit is to 70” mm (2.75”). It would be great to match this with the AAM 2.75” intake . From there, what would be the next logical addition(s) ? I am new to car mechanics and only know what I've been trying to absorb through the forum.

I have been drawn in to going the route of Synolimit's kit with the manifolds. His throttle body goes to 63" mm (2.5") though. I am left with questions, due to my ignorance I assume. Perhaps 2.5" is large enough and not to worry about larger porting?

It's a rabbit hole I don't know if you want to go down. It gets pricey. After a cai, test pipes or LTH's ($), cat back, tune. That's where you pick up the most bang for your buck. After that, the prices increase greatly for little hp increase. When you have done the before mention add-ons. Next would be throttle bodies, port matching the intakes, cams. Do all of this. You're about 1/2 the price of a Stage 1 TT kit that will almost double the hp.

Thank you for your insight. I appreciate it.

Thanks for everyones response, apologizes if I derailed the OP. Personally I'm going for the pmaf tubes/k&n combo, save the $ for a tune.

More like an infinite hole

Once you start down that hole. There is no 12 step program for recovery. Just bankruptcy.

I have Synolimit’s setup with AAM’s intake on my car and I got gains with a tune. The key is matching the diameters so there is consistency in the airflow throughout the intake tract to keep the flow smooth. I looked at the EPS TBs and 70mm looked great but the manifold can’t go to 70mm and EPS uses an adapter to neck down to 58mm for the manifold. So where is the benefit? Synolimit’s setup is consistently 63mm (2.5 inches) which is as large as one can go. A 3-inch intake will not supply any more air than a 2.75 inch because it’s not being asked too (in a NA engine). The total vacuum demand starts in the manifold and whatever volume it can demand is all you need until you start forcing air.

It's the same reason I didnt jump on the EPS TB's. With the Z1 Intakes having a 2.5" inner diameter, it matched stock ported throttle bodies perfectly. Maybe if there was an aftermarket intake manifold with larger throttle body inlets.