The setup on my new engine will be as followed: all bolt-ons with a big street port, Power FC, and walbro high flow. Should I go with bigger primaries or just upgrade my secondaries. I will be tuning for 12 psi. max boost. on stock twins. BTW, I have done a search, but would like some more opinions on this. Thank you

 

Primaries are fine. All you need to do is upgrade your secondaries.


Lemme know whats going on with those 550's as well... Im waiting on you

 

Hi Ted,

yeah, at only 12 psi you'll be ok w/12 or 1300 secondaries and stock prim's. Here are some good links to find out if your injectors and punk will support your horsepower goals:

http://www.maxcooper.com/rx7/how-to/...tem/calcs.html

and

http://www.stealth316.com/2-fuelpumpguide.htm

take it easy--

 

Now that I have a PFC, and some extra 850cc injectors, plus a tuning day setup with Steve Kan, should I install 850cc injectors in my primary, or just skip it, and go to 1300cc in my secondaries ?

I'm thinking about 12-13psi of boost on the stock twins max.

This is for a daily car, that I use on track days and on autox.

:-) neil

Here's my current setup:

NEW engine with 5K miles on it
ARC SMIC
'99 SPEC intake duct with STOCK airbox
Supra TT fuel-pump
Efini Y-Pipe
JDM downpipe (no pre-cat)
High-flow metallic cat w/air-tube
Magnaflow resonator
TRUST muffler
PFC with RX7Store base tune for above (injectors at 80% duty-cycle at WOT)
currently idle surges when below 40-F, otherwise fine