Log style manifolds
Log style manifolds just curious what everyone thinks of log style manifolds? I am in the works of a turbo 370 Miata. its kinda tight and stainless works headers arent really in my budget. i can put together some log style manifolds with 1.75" primaries and 2.5" collectors. someone on here mentioned too high EGTs (isnt that good for turbos anyway?) and inefficient design. anyone here built a set yet?
theres a blue TT Trans Am that runs logs, I'll try and find the thread.....
here ya go https://ls1tech.com/forums/forced-in...a-build-4.html
here ya go https://ls1tech.com/forums/forced-in...a-build-4.html
Last edited by IT_SS; Jul 28, 2010 at 12:04 PM.
I was kinda curious about logs myself. Especially have a stock manifold in stock postion one side having the pipe swing around to the passnger side, connect and have the passengerside primarys meet the single pipe then to turbo. Is that what u mean? I'd like to see some power numbers from that style
Trending Topics
Staging Lane
Joined: Sep 2009
Posts: 63
Likes: 0
I was kinda curious about logs myself. Especially have a stock manifold in stock postion one side having the pipe swing around to the passnger side, connect and have the passengerside primarys meet the single pipe then to turbo. Is that what u mean? I'd like to see some power numbers from that style
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
On The Tree
Joined: Mar 2006
Posts: 150
Likes: 0
I was kinda curious about logs myself. Especially have a stock manifold in stock postion one side having the pipe swing around to the passnger side, connect and have the passengerside primarys meet the single pipe then to turbo. Is that what u mean? I'd like to see some power numbers from that style
I have a set of LS1 header flanges and i could easily build a set of logs for my upcoming 91mm build. I am thinking of building a set tubular headers but that is too much commitment.
On The Tree
Joined: Mar 2006
Posts: 150
Likes: 0
You can’t blame the back pressure on the log manifolds
If your taking your readings from under the turbo inlet flange.
The cause of the back pressure is always down stream
of where your reading from.
It could be the turbine is too small, the A/R is too small
or the exhaust system may not flow enough.
But you can’t blame it on the log headers.
Not trying to bust your *****, just trying to help.
If your taking your readings from under the turbo inlet flange.
The cause of the back pressure is always down stream
of where your reading from.
It could be the turbine is too small, the A/R is too small
or the exhaust system may not flow enough.
But you can’t blame it on the log headers.
Not trying to bust your *****, just trying to help.
On The Tree
Joined: May 2010
Posts: 108
Likes: 0
From: MI
naw is cool man I can use any help but I all ready did all that stuff and is left is the logs I got a 5" dp right now dump right down I went from a a/r .96 to a 1.32 with the biggs wheel I can get got a gt4788 and it did help for sure but still the back psi is still to high so idk wut eles to chg but the logs wut I could do is put it on the logs and see wut the back psi reads from there
grand nationals been boosted over 2 decades ago and they came stock with log style setup
ive ran a Log setup for my truck made good power, i also fabbed a log setup for a Fbody as well
ive ran a Log setup for my truck made good power, i also fabbed a log setup for a Fbody as well
On The Tree
Joined: May 2010
Posts: 108
Likes: 0
From: MI
the thing I like about my log headers is I can get to all the spark plugs and thay fits real nice my car does make good power for sure and the gt4788 r know for back psi prob but a lot of people on here told me the logs had something to do with my back psi hope this helps
