Why use a manifold on the right side when using a single turbo????
Thread Starter
TECH Addict
Joined: Jan 2002
Posts: 2,950
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From: Magee MS
Why use a manifold on the right side when using a single turbo???? I was just wondering why the '02 maniold was used instead of a actual header?
Does it unbalance the engine too much?
Josh S.
Does it unbalance the engine too much?
Josh S.
they're cheap!
the 00+ manifolds dont flow too terribly bad
they hold the exhaust energy in well
they don't crack
*note* this is not common among all single turbo set-ups.. some do come with tubular-style exhaust..just not for ls1's.. not yet.
the 00+ manifolds dont flow too terribly bad
they hold the exhaust energy in well
they don't crack
*note* this is not common among all single turbo set-ups.. some do come with tubular-style exhaust..just not for ls1's.. not yet.
TECH Enthusiast
Joined: Nov 2001
Posts: 650
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From: Toronto, Canada
There's a lot on controversy in this area about manifolds vs. headers. My personal opinion is I prefer the header, I have a Mac mid-length header on the passenger side and it helped a great deal with some of my exhaust flow and heat issues it also reduced my exhaust back pressure signifigantly.
CAVEAT: I have a large displacement motor and velocity is an issue for me. On a stock displacement motor with low boost the problems with back pressure will likely be manageable.
The newer single turbo kits that I have seen all come with a full header on both sides and can support higher boost levels. My new design employs this style as well with a new and relocated cross-over running into a y-pipe into the turbo. My T74 can easilly support higher HP with lower boost and less back pressure.
BTW, if you are looking into a custom kit and want improved turbo response, make sure you look into a turbo that uses an off-center housing. These new housing's extend life and improve early response and low boost, they are also not as prone to stall.
CAVEAT: I have a large displacement motor and velocity is an issue for me. On a stock displacement motor with low boost the problems with back pressure will likely be manageable.
The newer single turbo kits that I have seen all come with a full header on both sides and can support higher boost levels. My new design employs this style as well with a new and relocated cross-over running into a y-pipe into the turbo. My T74 can easilly support higher HP with lower boost and less back pressure.
BTW, if you are looking into a custom kit and want improved turbo response, make sure you look into a turbo that uses an off-center housing. These new housing's extend life and improve early response and low boost, they are also not as prone to stall.
TECH Enthusiast
Joined: Nov 2001
Posts: 650
Likes: 0
From: Toronto, Canada
Originally Posted by slow
cost.
if you do a search, somebody on this forum, or the otehr site, converted from the manifold, to a shorty mac (i think) header, and had noticable gains.
Ryan.
if you do a search, somebody on this forum, or the otehr site, converted from the manifold, to a shorty mac (i think) header, and had noticable gains.
Ryan.
Originally Posted by Warbird
That would be me
I remember following your posts when you were in the process of it, and got good results.
Ryan.
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