OK guys I need a little bit of advice on what else I need to finally boost up safely.

My goal of the car is to *never* boost past 14 psi on stock turbos. At 15 psi the turbos are no longer efficient.

*I don't track the car but I do drive spiritedly.
*I will the keep the car at 10 psi for 80% of my driving, 18% at 12 psi, and 2% at 14 psi for fun
*My goal is to reach at least 300 RWHP @12 psi, but I would be static to reach 330 RWHP.

So far my go-fast mods are:
Mild Streetport
DP
MP
M2 CAI
PFS SMIC
Apex'i BOV
Boost controlled Via Profec Spec II (love it BTW) right now set at 9.5 psi for safety
High flow fuel pump

Now It's time for a catback (RB dual) and Apex'i Power FC.

Since it seems that the stock fuel system is only adequate up until 13psi , what else do I need? Injectors? 850's and 1300's or is that on overkill? as in just getting 1300's more than enough for my needs.

 

You should make 300 whp at 10 PSi with the mods you have.

 

A tuned PFC along with the catback should get you over 300 rwhp with what you have now.

Oh yeah, Do a search

 

Oh yeah, I meant with those.

 

You're at 300rwhp right now with the mods you have.

 

That's a little optimistic for stock ECU at 9.5psi, dont you think RX7Rage ?

 

hmmm yea..i missed the part where he said he had a stock catback and stock ecu
Put the pfc and catback then you're at 300 I hit exactly 300 rwhp with dp,mp,cb,intake, gforce ecu, avcr boost controller set to 11 psi and STOCK intercooler.

 

But what about the boost levels? Do I need anything else other than injectors for 14 psi?


On another note:

Hey Rx7Rage,
Do you find that the police want to take a look at your engine bay because of your hood?

I'm planing on getting a vented hood but I'm concerned about the attention.

 

Fortunately, my car is not a daily driver so I don't about that yet. lol But in the 3 years I've driven the car with a vented hood, I haven't had any trouble with cops.

 

https://www.rx7club.com/showthread.p...light=300+rwhp

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

EDIT: This is even a question in the FAQ's, #17

 

Look at my sig. I was having boost controller problems so I couldn't up the boost any more.

 

Thanks for the link.


I guess i should had thought more about my tittle,

Something of the sort:

What other mods do I need to support 14 psi properly. Am I forgetting anything? Any new advances?

ha ha live and learn.

 

not to start a war...but says who?

 

Montego-

I recently dyno'd my car (check the dyno & timesheet section) with just about every mod you can do and still hold the stock twins (non-seq).

 

^^ thanks

matty- inneficient as getting to the point that they create too much heat + stress on the stockers for long term use.

 

d

 

tons of people run 17, 18 or even 19psi
i dont see a problem with it especially if u are going to run it at the strip or for the occasional spirited driving. There is no data that backs up the 15psi is max claim. its heresay.