strikerfj40

What are some easy hp upgrades. Is the RB exhaust and FCD really worth it?

Phantomkid

the stock exhaust is very restrictive free up the exhaust will allow for quicker and better boost. will need the fcd and the wastegate does not flow great you will need to port it if you have a better flowing exhaust. that is a good upgrade.

jboze84

Don't do all of those upgrades without upgrading your secondary injectors and fuel pump. The stock fuel system can barely handle stock boost levels.... This is probably the number one reason why so many fc motors pop so quickly

strikerfj40

Reading FAQ's and upgraded fuel pump seems to be #1

K-Tune

iTrader: (26)

stop MAKING threads and start READING them.

Boosted11

iTrader: (11)

Do you really need upgraded secondaries and fuel pump to get aftermarket exhaust? Never heard that before.

arghx

iTrader: (3)

the short answer is yes. the long answer is, it depends how much your boost climbs from that exhaust and how good your stock fuel system is running.

t24todd

iTrader: (7)

plenty of threads on this..at least 2-3 a week. its easy to get hp from s4. doing it right can be costly. like everyone stated above.

upgrade fuel pump(walbro 255)
Rtech(1.7)
RB full exhaust
ported wastegate
720 or 850cc secondaries
cleaned primaries
possible short ram
new plugs/wires
boost gauge
All basically one big step process done right though..and of course car should run great before these mods(tune up)
these mods cost round $1700 though

rx7 FC TII

iTrader: (3)

^^ thats exactly what you need.

Roen

iTrader: (2)

RB full exhaust plus Rtek 2.0 computer seems to be the best way to go.

blwn rtr 89'

iTrader: (5)

its better to upgrade than refurbish!

real life isnt like gt3

arghx

iTrader: (3)

you can do it for way cheaper than that. you can get a used, non RB exhaust, full turboback, for probably like $600-800. you can get away with an SAFC and FCD, both would be about $150 used or less. two 720's used in good condition are like $100 or less, cleaning primaries is cheap... I'd say $1000 is possible if you get good deals. maybe less.

you will need a wideband or time on the dyno to make sure your AFR's are ok though.

blwn rtr 89'

iTrader: (5)

you can build one for $30

Roen

iTrader: (2)

Go with the rtek, then at least you can tune fuel and TIMING.........best compromise for cheap. And you get the benefits of the FCD.

bboyclo

Is it better to port the stock wastegate or buy an ebay one for $70? does the FD wastegate fit and is it better?

siguy2k

iTrader: (3)

^yeah but he didnt specify which series. I was under the impression that they only make the rtek for the s4's correct?

Roen

iTrader: (2)

you, sir, are correct.

My assumption was S4, since that is the majority of TII's on this board.

bboyclo

but the racing beat REV is already $825 by itself though

freemanrx7

I just finished my major upgrades. Took awhile

Get and s5 turbo manifold and hotside-Port the wastegate
Cone type filter with TID
Full RB system.

With the ported s5 hotside you will have no boost creep problems.
I run 5.5lbs of boost and it's plenty of power. Anything more and you have to touch the fuel injectors.DO NOT upgrade with out the ported wastegate. Do these mods first then you have some basic covered. You may also want to do safety mods-such as the replacing the fuel pulsation dampner,replacing coolant hose and vacum hoses. A tune should be done first if not done recently.