Exhaust header bash
Thread Starter
Joined: Oct 2001
Posts: 12,213
Likes: 1,140
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Exhaust header bash
Interesting
Joined: Jan 2002
Posts: 3,449
Likes: 7
From: LONDON, KY
Car: Camaro
Engine: Carbed L98
Transmission: TH350
Axle/Gears: 3.73
Re: Exhaust header bash
Yeah, I saw that this morning. They needed to do a test of going from a 3" flange to a 2.5" reducer pipe. I wonder what kind of difference it would have produced.
Joined: Jan 2013
Posts: 3,038
Likes: 52
From: Newtown, CT
Car: 1987 IROC Original Owner
Engine: LB9
Transmission: M39 MM5
Axle/Gears: G80 G92 J65
Re: Exhaust header bash
Saw that on PY too - amazing!
Now what about the mashed bottoms at the collector - how would it do then?
Now what about the mashed bottoms at the collector - how would it do then?
Supreme Member
iTrader: (9)
Joined: Sep 2001
Posts: 2,984
Likes: 37
From: North Central Indiana
Car: 86 IROC
Engine: 383
Transmission: TKO 600
Axle/Gears: 3.54 Dana 44 IRS
Re: Exhaust header bash
Well now I don't feel so bad about runnning Edelbrock headers on the '88.... Dyno Don just lost a sale! LOL
Thread Starter
Joined: Oct 2001
Posts: 12,213
Likes: 1,140
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Member



Joined: Aug 2004
Posts: 435
Likes: 83
From: Northern Arkansas
Car: 1982 MSE, 1988 S10 Blazer
Engine: 305 in both!
Transmission: 200c / Th700r4
Axle/Gears: 3:73 / 3.42
Re: Exhaust header bash
I would have believed no loss with some clearancing.........but those things are beat to CRAP!
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Joined: Sep 2004
Posts: 5,906
Likes: 240
From: Chicagoland Suburbs
Car: 1989 Trans Am GTA
Engine: LT1, AFR 195cc, 231/239 LE cam.
Transmission: M28 T56
Axle/Gears: 3.23 10bolt waiting to explode.
Re: Exhaust header bash
I for sure thought the way those headers ended up with make a difference, but what amounted to nothing was the result. The variance was within normal tolerances.
Thread Starter
Joined: Oct 2001
Posts: 12,213
Likes: 1,140
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Exhaust header bash
Yeah, with at least a collector on them it may have made a slight difference.
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