Official Turbo LSJ thread!!!
#7064
Well... Zip made 900 on it. Theoretically a larger plenum and shorter velocity stack runners (like mine) will perform better at high rpm.
I have to redesign the plenum on mine. Wasnt enough clearance. So I'm running a modified Saab IM I picked up on eBay for $99 till my custom one is done.
I have to redesign the plenum on mine. Wasnt enough clearance. So I'm running a modified Saab IM I picked up on eBay for $99 till my custom one is done.
Last edited by armcclure; 11-22-2013 at 10:53 AM.
#7069
According to general "turbo theory"
It's the best manifold available for someone who wants very strong low end grunt and midrange without completely tanking up top. I.E. 85% or more of lsj-t owners.
For top end, a large(er) plenum and short velocity stacked runners will help keep the g/cyl high up top, but due to increased volume will hurt spool slightly, and the short runners don't load the cylinders as well at low speeds.
Theoretically zzp would have made more power with a large plenum log style manifold. But that's theory.
So the perfect manifold is impossible. But for most people, the Saab will do very well.
It's the best manifold available for someone who wants very strong low end grunt and midrange without completely tanking up top. I.E. 85% or more of lsj-t owners.
For top end, a large(er) plenum and short velocity stacked runners will help keep the g/cyl high up top, but due to increased volume will hurt spool slightly, and the short runners don't load the cylinders as well at low speeds.
Theoretically zzp would have made more power with a large plenum log style manifold. But that's theory.
So the perfect manifold is impossible. But for most people, the Saab will do very well.
#7070
#7072
Im not worried about it, my IATs are low low and I run the RD Fabs manifold, I understand heat transfer, but anything metal will heat transfer which is all intake manifolds including saab, ttr, rd fabs, etc.
#7075
I have a phenolic spacer on it as well so the log style of RD Fabs works way better for me than the saab would. To me the saab isnt as clean of a setup as the RD Fabs , wish I could use a Magnus style manifold that the evos and DSMs get.