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4inch fernco on a 90mm TB...no?

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Old 01-04-2007, 11:45 AM
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Default 4inch fernco on a 90mm TB...no?

Searched a lot , saw a lot of people saying they used a 4inch X 3 (stock maf) fernco to replace the stock bellow. 4 inch is wayyyyyy too big to get a good seal over my TB. I cannot find a 3.5inch either so i guess i'm stuck to order it online.
Old 01-05-2007, 12:10 PM
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anyways..
Old 01-05-2007, 12:25 PM
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I use the stock bellow with stock MAF and 90mm TB, fits perfect.

Check out hightempsilicone.com or intakehoses.com. 3.5" ID seems to be the norm for 90mm/85mm stuff.
Old 01-05-2007, 12:39 PM
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Originally Posted by TheBlurLS1
I use the stock bellow with stock MAF and 90mm TB, fits perfect.

Check out hightempsilicone.com or intakehoses.com. 3.5" ID seems to be the norm for 90mm/85mm stuff.
I am and have been using the stock bellow. THe problem is... i have nozzles in it and i am ditching them for a 2 stage plate/dp setup...If i take the nozzles out, i will have holes in it which is no bueno
Old 01-05-2007, 01:20 PM
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Im'a buy a 3" x 12" when I finally decide to complete it.
I've got fernco to the stock with a coupler right now.

The 90mm threw me for a while until i found out the bigger diameter is the inner of the big throttle bodies. The outer diameter of the stock and the NW 90's are roughly the same or close enough.
The 3" fernco I used on the stocker fit just as well on the 90.
Looks janky tho right now.
Old 01-05-2007, 02:30 PM
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90 mm is about 3.5 inches, i just ordered a 3.5"x 12"peice of tubing along with 6 stainless steel t bolt clapms from racepartsolutions got here fast and will work great soon as i get some 3x5 elbows. my slp smooth bellow wouldnt fit my nw tb, so i dont know how 3" fernco would work unless it streches alot. i think im going to run a cone filter behind my front bumper( i got rid of everything taking up space in that area)i have the 4 inch fernco mod sitting in my garage theres no way it would seal without a spacer to go in between.
Old 01-05-2007, 06:57 PM
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Post up in the Tejas section, I'm sure someone around Kangwood has a stocker sitting in their gay-rahge with no holes in it. Hell, I'll bet Dragaholic will sell you one for $74.99.
Old 01-06-2007, 10:06 AM
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I use a 4" coupler from High Temp Silicone to connect everything to my stock throttle body, and it fits really well. I don't know how you guys are getting a 3" piece to fit...seems awfully small.
Old 01-06-2007, 10:26 AM
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Originally Posted by TheBlurLS1
Post up in the Tejas section, I'm sure someone around Kangwood has a stocker sitting in their gay-rahge with no holes in it. Hell, I'll bet Dragaholic will sell you one for $74.99.

haha i bet he sure does.That is a good idea though, thanks.
Old 01-06-2007, 04:16 PM
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I don't see how anything smaller than 4" fits. The OD of my 90mm is 4" and I use a 4" rubber hump hose to match that to a 4" OD aluminum pipe which goes to a 4" rubber coupler to connect to the lid.
Old 01-06-2007, 07:12 PM
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if you really want a red HItemp silicone coupler (5-6" long) in 3.5" ID i have one for sale. i was going to use it on my 90/90 setup but it was a little tight for me.



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