ITSWILL

iTrader: (12)

heres my specs

streetport
walbro 255
3in exhaust and downpipe
rtek7 2.1 +(safc if needed)
bnr stage 4 turbo 15 to 18 psi

Should I run 550 or 720 primaries

As for secondaries 1600s ???

Im shooting for 400 whp

Also will I need a new fuel rail and FPR?

gxl90rx7

iTrader: (1)

720cc primaries, 1000cc secondaries minimum.. i tried 1600's but had trouble tuning the transition, maybe if you can find some 1200's or something

boost_its_what_for_dinner

you wont need a safc since the rtek 2.1 requires a pda for the tuning device.
also i have hit the max of my 1000cc at 13 psi on 35r so id go 1200cc;s min.
fpr... rising rate aeromotive is what i have, i have stock rails but will be getting a new secondary rail when i upgrade to 1600's

ITSWILL

iTrader: (12)

The idea for the safc was for additional tuning if i need more fuel correction. but thanks for the recommendation.

gxl90rx7

iTrader: (1)

im still using the stock fuel rail and FPR with 1600's.. you just have to take a dremel to the top part to get them to fit. the stock fuel rail and FPR are fine, there is no way a walbro will outflow them

ITSWILL

iTrader: (12)

Are these what I need?

http://www.rx7store.net/product_p/bosch%201600cc.htm

gxl90rx7

iTrader: (1)

yep, but they are hard to tune. ever since the load-based staging "fix," rtek does not turn on the secondaries at a set boost level.. so its hard to figure out where to cut fuel in your maps. i would go with 1200's, they should be easier to tune

ITSWILL

iTrader: (12)

I couldn't find 1200s, so I just went ahead and bought those 1600s. Hopefuly I can get them to work out. Do you have any recommendations for what brand and where to buy the 720s. I saw the greddy ones buy what hoping to find something for about $100 or less each.

gxl90rx7

iTrader: (1)

Im using these:

http://www.rceng.com/Saturated-Injec...top-P64C6.aspx

high imp so you dont need resistors

ITSWILL

iTrader: (12)

I just ordered up a set, thanks for the info.

fredox19

iTrader: (8)

I don't think you would be able to go beyond 14psi, because of the AFM(which max out at 14psi). Currently you can't remove with the Rtek2.1

turbo2ltr

iTrader: (1)

You can, you just wont have any fuel/timing tunability above 15 psi...so its not really recommended..

ITSWILL

iTrader: (12)

could I run an SAFC on top of it for more fuel if I run more boost?

fredox19

iTrader: (8)

So your telling me that I can go 16psi(of course not on the stock turbo) on the AFM if I get the Rtek 2.1 and just get it tune?