BRP / headman 1 3/4" mid length how much power they good for?
Thread Starter
Member
Joined: Jul 2005
Posts: 372
Likes: 0
From: Indianapolis,IN
Car: 1991 B4C Camaro RS
Engine: 370 lsx ls3 heads victor jr w/carb
Transmission: TH400 w/brake coan 8"4500-4800 stal
Axle/Gears: Moser 9" locker w/ 4.11's
BRP / headman 1 3/4" mid length how much power they good for?
370 lsx carbed
Ported victor jr l92 /ls3 intake
Ported/milled ls3 heads
235*/251* .621"/.631"110lsa. Eps camis should peak at 7200rpm
Flattop pistons 11.25:1 compression
850 proform carb.
What are your guys opinion. Should make around 600fwhp.
Exhaust is going to be 3" duals. With turndorns right behind driver. Short exhaust.
Will these be choking the engine?
Can't find a set of used hawks headers.
http://www.brphotrods.com/mm5/mercha...gory_Code=CNV1
Ported victor jr l92 /ls3 intake
Ported/milled ls3 heads
235*/251* .621"/.631"110lsa. Eps camis should peak at 7200rpm
Flattop pistons 11.25:1 compression
850 proform carb.
What are your guys opinion. Should make around 600fwhp.
Exhaust is going to be 3" duals. With turndorns right behind driver. Short exhaust.
Will these be choking the engine?
Can't find a set of used hawks headers.
http://www.brphotrods.com/mm5/mercha...gory_Code=CNV1
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iTrader: (5)
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: BRP / headman 1 3/4" mid length how much power they good for?
buy the 1 7/8" headers at least in long tubes, those shorties will choke the engine.
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: BRP / headman 1 3/4" mid length how much power they good for?
With a better collector I dont think they would hurt too bad with dual 3" being so short. Lsx can get away with larger headers tho. Think you'd need abit more cam than that to hit 7200 rpm peak but still should make power either way.
Senior Member
Joined: Jun 2001
Posts: 922
Likes: 33
From: Kansas
Car: 91 Z28
Engine: 6.0L LQ9
Transmission: T56
Axle/Gears: Dana 44 3.92
Re: BRP / headman 1 3/4" mid length how much power they good for?
sounds noisy to me....i love my brp lsx swap mids. i'm not as cammed as your combo, but i don't think its holding much back and i neck down to 2.5" pipe in my y. great quality on their product. i've always been pleased with hedmans headers.
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