probably a newbee question but....

The_new · #1 (**permalink**) 02-28-2006, 11:21 AM

On account

of the turbo is under the motor is not bad for it...like the water on the road or snow in winter...??? is not better take a top mount manifol???

thank all for reply to my basic question!!!

TweakinE36 · #2 (**permalink**) 03-01-2006, 09:20 AM

The turbo in most applications, is pretty snugged away, and the front air dam will difuse alot of anything that is coming at it. Rain, or snow for that matter, hitting up against it will do nothing but melt, or sizzle do to the high heat the actual turbocharger produces.

The_new · #3 (**permalink**) 03-01-2006, 07:05 PM

ok thank's but the top mount is better or not??

Highboosted · #4 (**permalink**) 03-01-2006, 09:58 PM

Doesn't matter as far as output.

getting it close to the exhaust ports is more important for output/spool. My rear turbo is squeezed in between the firewall and the cylinder head, because it's really close to the ports, therefor maximizing the exhaust's heat and velocity energy to reduce spool times (Peak TQ is at 2,700 RPM for me, 15 psi, ~310 lb/ft). Makes changing it a bitch, but I get better at avoiding bruises every time I have to do it. From the manifold's I have seen for BMW's, the tubular under-mount headers seem to me as the best design, but it kinda interferes with the motor mount, and hard to get to.

MrBlonde · #5 (**permalink**) 03-02-2006, 07:32 AM

Top Mount is heaps better.