Test pipe diameter ? JDM header 2.5" and 2.25" b-pipe

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10-28-2002, 07:08 AM

pinota

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Test pipe diameter ? JDM header 2.5" and 2.25" b-pipe

Hello,

I need to replace my cat converter cause it´s ruined.
I have a DC JDM header 2.5" colector and a 2.25" b-pipe.

What diameter should i use to do a test pipe, 2.5" or 2.25" ?
Wich pipe diameter will give me more hp, what benefits and disadvantages of pipe diameter.

Thanks in advance.

Pinota

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10-28-2002, 07:14 AM

sackdz

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Re: Test pipe diameter ? JDM header 2.5" and 2.25" b-pipe (pinota)

Quote:

Hello,

Wich pipe diameter will give me more hp, what benefits and disadvantages of pipe diameter.

Thanks in advance.

Pinota

Wow, you're still using a 2.25" exhaust? Get rid of that thing, it's only holding you back.

[e]

Quote:

DC JDM 4-1 /custom twinloop exaust 60mm/Supersprint B-pipe 60mm

Is that the bpipe you're talking about?

Does the flange measure @ 2.25"? The exhuast is 60mm = 2.36"

[ee]Use a 2.5" testpipe.

[Modified by sackdz, 11:21 AM 10/28/2002]

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10-28-2002, 10:44 AM

pinota

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Re: Test pipe diameter ? JDM header 2.5" and 2.25" b-pipe (sackdz)

Quote:

DC JDM 4-1 /custom twinloop exaust 60mm/Supersprint B-pipe 60mm

Is that the bpipe you're talking about?
Does the flange measure @ 2.25"? The exhuast is 60mm = 2.36"
Use a 2.5" testpipe.

Yes, the b-pipe and the exaust pipe diameter is 60.5mm, the b-pipe flange is 57mm internal. I have in the cat converter a custom flange of 60mm internal.

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