Feuerraeder

Like whats the technical reason for an equal length manifold being so great? Is it a pulse tuning thing?

ceemarun

i'd like to know also....

BoostedSi

I think you can gain more power with it..

-Racer X-

lol...better cfm's better flow.

intekragsr

better spool time? Less likely to spike? Correct me, but these are the things that would make sense to me. i dunno

ecoli

Better spoolup and they can charge you a lot more for it...

Daniel

someone posted a LONG message from another board about exhaust piping and affects it has on turbochargers. the idea of equal length manifolds was mentioned, and i think the author said they were better because the pulses of exhaust gas would reach the turbine at the same time ... or something like that.

Daniel

here, i found the message on another board:

As for primary lengths on turbo headers, it is advantageous to use equal-length primaries to time the arrival of the pulses at the turbine equally and to keep cylinder reversion balanced across all cylinders. This will improve boost response and the engine's VE. Equal-length is often difficult to achieve due to tight packaging, fabrication difficulty, and the desire to have runners of the shortest possible length.

Feuerraeder

thanks daniel