Horsepower is flatlined from 4,800-5,500. Need opinions
Registered User
Joined: Jun 2002
Posts: 2,456
From: sarasota, fl
Originally posted by JSK333
You don't think the primaries/collectors are choking it off too early?
They seem small for the heads and turbo you're running. 215 AFRs, the RR version, right (don't know since the flow #s you quoted seem low)?
You don't think the primaries/collectors are choking it off too early?
They seem small for the heads and turbo you're running. 215 AFRs, the RR version, right (don't know since the flow #s you quoted seem low)?
ive seen mustang guys making over 800rwhp with 1 5/8 primaries and 2 1/2 crossover
but i would guess thats pretty much maxing out that size pipe.
West South Central Moderator / Special Guest
Joined: Dec 1998
Posts: 1,650
From: Coppell, TX USA
i've been told that 1 5/8th primaries and 2.5 collector is good for around 1000rwhp.
remember, on a turbo setup the exhaust system is "in boost" also, probably 2:1 on his setup!
remember, on a turbo setup the exhaust system is "in boost" also, probably 2:1 on his setup!
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