So I've been emailing back and forth with Adam from RX7Specialites in Calgary, AB about a 20b N/A build. It seems like he wants me to do a ton of extra things that I don't know if I need or not. Basically, I'm going to be building a fun street car that I will take to HPDE once in a while. What I want is a large streetported 9.7:1, balanced to 9000RPM engine. He wants me to go with new housings and says new rotors are a necessity. Do I really need all of this for a 300whp N/A build?
He suggested the following in an email...
Quote:
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New 13B housings, new S5 rotors, 20b hardened gears, Lighten, clearance and balance rotating assy (which I will do) Oil mods incl HP race oil reg. Bridge porting 20b (pri and sec) $1117.50 (incl std intake port and polish, exhaust porting and bridge work).
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I figured a standard 9.7:1 build with S5 rotors, a LARGE street port and balancing would be good. Should I be doing oil mods? Race bearings? Scalping the rotors? He suggested a bridge port... not sure if I want to go that extreme.
I know he knows what he's talking about and I'm sure it would be a KILLER engine. But... it's all about dollars and cents.
What do I need to build a 350whp ITB'd street ported 20b?
I'm going to be runnign a Microtech, have some equal length headers built by a friend who is a fab king and most likely use the Hinson subframe with their bumpsteer kit.
Any input would be appreciated.
Thanks...
Aaron from Canada