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Best headers for a Vortech blower

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Old Mar 2, 2004 | 06:00 AM
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Default Best headers for a Vortech blower

Is it worth it to go to either a stepped header or 1-7/8 or should I just go with the standard 1-3/4 and be done with it?

I want to make the most power out of it. The car is getting a aftercooled vortech,probably 8-9 lbs, its an a4.

wasn't sure if i should ask this in the FI forum or not.

car is mostly stock but will have an aggressive cam for a blower. looking for at least 500 to the wheel when its all said and done.
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Old Mar 2, 2004 | 11:51 AM
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I would get the biggest headers I could find/afford.

I am running 1.875/2.000 step headers from Kooks that have 3.5 collectors.

I would run 1.875 full length headers, but I would run 1.75/1.875 step headers at a minimum if I was buying the stuff all new.
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Old Mar 2, 2004 | 08:03 PM
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i'd like to see a graph showing how much more power a 1-7/8 would make over a 1-3/4 on the same car.

My tuner suggested a stepped header as you did, but the cost of a stepped header didn't make sense enough for me to do it.

Hooker 1-3/4 coated headers it is, along with their offroad pipe and Magnaflow exhaust.
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Old Mar 3, 2004 | 11:04 AM
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One of my advisors for my setup runs NMRA and those guys consistently have gone faster with bigger headers, they now run 2.000/2.125 step headers on 306ci engines.
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Old Mar 3, 2004 | 06:53 PM
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that's cool. for me to get stepped headers or step up to t1-7/8 it would have cost me like an extra 1000 or so, just wasn't worth it to me for a few extra hp.

If ya got slips from a guy running 1-3/4 then going with a 1-7/8 I'd like to see that. Maybe down the road I'll switch for now I'm fine.

Believe me if I had a money tree I'd would get all the good **** done.

My car's not an all out drag car like yours. I really can't see THAT much of a difference on a basic starter level combination that I will have. Maybe if I was pushing more boost, had heads, built bottom end yada yada then yes.
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