s15 injectors--s13 motor

[drifspecs13]

I have s13 redtop sr20det motor with stock 370cc/min injectors.Will the s15 444cc/min injectors drop right in? should I get the injectors with fuel rail. Is there any upgrades reguired when doing this.

Thanksss

[ItzGenX]

Yes they drop right in. Why spend on 444 when you can go straight to 555's?

[drifspecs13]

I've thought about the apexi 555's but a friend got a really good deal on 444's. Do you recommend anything else with the injector upgrade

[DonDonati88]

Did your friend purchase those 444's off the person who was selling em fromthe 240sx classified?

Also another question...if I put 555cc's in my s13 motor, what mods are recommended to take advanatge of the high hp limits? And what kinda hp am I looking at?

[ItzGenX]

well 555's will take you a pretty long way, there comes fuel tuning computers OR standalone engine management systems, there's turbo upgrades, oh and a must is you gotta have a fuel pump upgrade (to feed those 555's), i can go on forever. There's a lot of things to put into consideration when it comes to "upgrades". It all always comes down to budget and if you need it or not. 555's is the tip of the iceberg so i couldnt tell you how much power u'd make with them.

[lucky]

Awhh....be a real man and get some 850cc injectors. J/k You will need some type of fuel management if you go with the 555cc injectors. You may want to look into the HKS S-AFR. I have it in my current car and it's pretty nice. It's not as good looking as the Apex-i AFC but it has better tuning capabilities and it easier to use.

[Dori Dori]

On WRX's, only a couple of guys have come close to the limits of 555cc injectors. One of them puts out around 450hp to the wheels...that's a 4wd car. So basically, you should be able to run 400whp+ easy.

If I were you guys, I'd wait on Enjuku's top feed fuel rails to be released though. They are supposed to be very strong. They are also supposed be cheaper (with injectors). Top feed injectors are cheap.

[ItzGenX]

not necessarily 400+hp easily. I've seen some crude tuners with 555's max out their injectors at 350-380HP. That was at 98% duty cycle. Fine tuners are able to break the 400hp mark and still have headroom to grow.

[TruboostPerformance]

anyone know where to get the 444cc, or know of a price?

[Dori Dori]

That's really crude tuning!;)

Edit, OK, I change my statement...350 easy, 400+ nice tune.

[KRPSICHI3]

I have S15 Injectors for sale in the fuel rail. E-Mail me for a price. The shops here in Okinawa say S-15 Injectors are 480cc. Someone please correct me if I am wrong.