mild steel intake manifold?

alex_in_az · 08-01-2020, 10:00 PM

I can't seem to find a manifold that'll work with my Nibbi PE30 on my TBR7. is there some reason why I can't just fabricate one from mild steel plate and tubing? I'd make it from aluminum, but I can't weld aluminum with my set up

TheChairman · 08-01-2020, 10:24 PM

Go for it. If it works well, make a few. They'll probably sell.

The only issue I can think of is heat soak. Someone else here can probably chime in on whether they think that would be a problem.

franque · 08-02-2020, 05:11 AM

You might want to get a phenolic spacer between the head and manifold, and make sure the inside of the manifold is smooth. Also make sure you use a gasket to keep it sealed up.

alex_in_az · 08-02-2020, 12:00 PM

Quote:

Originally Posted by TheChairman

Go for it. If it works well, make a few. They'll probably sell.

The only issue I can think of is heat soak. Someone else here can probably chime in on whether they think that would be a problem.

the Nibbi has a rubber hose type mount, so that should help mitigate heat soak

Goob · 08-03-2020, 08:42 PM

Quote:

Originally Posted by alex_in_az

I can't seem to find a manifold that'll work with my Nibbi PE30 on my TBR7. is there some reason why I can't just fabricate one from mild steel plate and tubing? I'd make it from aluminum, but I can't weld aluminum with my set up

Here is one you can get..or many others like it on Ebay or Amazon. This one was recommended by JerryHawk250 I think. Some are as little as $5, not sure if there is any quality difference.

https://www.amazon.com/exec/obidos/A...im/refuge08-20

twinmonkeys · 08-03-2020, 10:13 PM

I am using this one on my 2020 TBR granted I am running a PWK 30 not the Nibbi

NIBBI Orginal High Performance CQR Intake Manifold Air Joint Boot Connector For Motorcycle Motorcross Dirt Bike Kawasaki CQR250 CRF

It is 15.99 and is Prime. I trimmed maybe 1/4" and it fits and clears the frame. I have the Uni foam filter.

alex_in_az · 08-04-2020, 03:09 PM

Quote:

Originally Posted by twinmonkeys

I am using this one on my 2020 TBR granted I am running a PWK 30 not the Nibbi

NIBBI Orginal High Performance CQR Intake Manifold Air Joint Boot Connector For Motorcycle Motorcross Dirt Bike Kawasaki CQR250 CRF

It is 15.99 and is Prime. I trimmed maybe 1/4" and it fits and clears the frame. I have the Uni foam filter.

I have that intake manifold, where did you trim it to make it fit?

08-01-2020, 10:00 PM	#1
alex_in_az Join Date: Aug 2013 Location: Goodyear, Arizona Posts: 407	mild steel intake manifold? I can't seem to find a manifold that'll work with my Nibbi PE30 on my TBR7. is there some reason why I can't just fabricate one from mild steel plate and tubing? I'd make it from aluminum, but I can't weld aluminum with my set up __________________ 2020 Tao TBR7 9.3:1 PnP head CRF230F exhaust 4 degree advance key 290 degree cam Nibbi PE30 and cone filter Front fork brace
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08-01-2020, 10:24 PM	#2
TheChairman Join Date: May 2020 Location: Philadelphia Posts: 115	Go for it. If it works well, make a few. They'll probably sell. The only issue I can think of is heat soak. Someone else here can probably chime in on whether they think that would be a problem.
	0

08-02-2020, 05:11 AM	#3
franque Join Date: Nov 2017 Location: Marseille, France -> Conakry, Guinea Posts: 1,481	You might want to get a phenolic spacer between the head and manifold, and make sure the inside of the manifold is smooth. Also make sure you use a gasket to keep it sealed up.
	0

08-03-2020, 10:13 PM	#6
twinmonkeys Join Date: May 2020 Location: North Carolina Posts: 11	I am using this one on my 2020 TBR granted I am running a PWK 30 not the Nibbi NIBBI Orginal High Performance CQR Intake Manifold Air Joint Boot Connector For Motorcycle Motorcross Dirt Bike Kawasaki CQR250 CRF It is 15.99 and is Prime. I trimmed maybe 1/4" and it fits and clears the frame. I have the Uni foam filter.
	0