Post by
ken240sx »
https://forums.nicoclub.com/ken240sx-u27409.html
Sun Jun 22, 2008 12:22 pm
I'm bringing this thread back to state that side mounts are great. BMW uses some sidemount manis on their newer 3 series and it makes the turbo's sit about 1 1/2" from the exhaust ports, which helps reduce the lag a little.
I'd say bottom mounts allow for a little better engine temps and clearance issues with the DP, MC, strut bar, hood, etc.Top mounts allow for much better access to the turbo and easier disassembly, but have more problems with clearances and melting ****.The advantage of the tubular manifold is when it is truly equal length. The equal length allows the exhaust pulses to not interfere and bunch up to create hot spots. In theory a true equal length tubular mani should allow for slightly better spool than a log, but if the log mani if quality and it allows for the turbo to sit close to the head so exhaust doesn't travel as far, it will aid in spool up time.I'd say a quality equal length and a quality log are not going to be that much different for spool up times, logs tend to last longer cause many are made out of thicker, stronger metal.I'd also like to put out that a cheap-average log mani probably won't perform as well as a cheap-average equal length(tubular).
+1 for having a sidemount Jookmasta