Interested to know how much psi they can handle..I wanna bost only about 7-10 psi on a stock gsr but kinda cheap to install and purchase injectors..

 

I would recomend you not try it.

 

You should upgrade your injectors but I willl tell you how much the stockers are capable of supporting so you wont need to ask ever again. lol

First you need to convert cc's/min into lbs/hr.

240cc / 10.5 = 22.8 lbs/hr

Now you multiply lbs/hr x your desired duty cycle the divide that by the BSFC. (Brake Specific Fuel Consumption) The BSFC is usually .60 for forced induction and .50 for NA combinations. We will do .50 just for the hell of it. Then multiply that by the total # of injectors.

So,

Injector size 22.8 x Duty Cycle 100% / .50 BSFC = 45hp per injector
45hp x 4 injectors = 180hp

Your answer is not enough fuel. If you get a 12:1 FMU you will be able to support more hp but lets face it, its 2007, not 1998, things have changed ALOT and your friends will make fun of you if your car has a big ugly blue FMU under your hood.

Get some injectors.

 

Thanks courtney..that aint enough fuel at all..

 

dude, if u cant cough up the 40$ for DSM 440's, then back away from the turbo.

 

I heard about those dsm injectors where can i get me some..also heard u need a sesister box..

 

180 crank......

LOL

 

glad to see someone still using their efi101 handbook

 

dont cheap out or you're going to break things quickly....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IT’S ME DAVID &raquo;</TD></TR><TR><TD CLASS="quote">I heard about those dsm injectors where can i get me some..also heard u need a sesister box..</TD></TR></TABLE>


There are tons here for sale on HT... Browse the classifieds or better yet, use the search

 

Found some thanks guys..

 

http://videos.streetfire.net/s...1.htm
my video

um.. you should buy new injector.. just because you know they are working fine and are new so they all flow perfect.... i ran into problem with bad injector and boy did i hate it.. couldn't figure out what was wrong with my car. but yea.. no more than 200whp for you. so your head can understand... just buy new injector.. you can't go wrong with it... ****... you need to tune it .... another 300 to 500 right there.. lol...

 

DONT BUY OLD USED INJECTORS FROM CARS 10 YEARS OLD ...

 

how do u know what the lb/hr is , in order to do the calculation for the injectors, i have 440 cc, how do i convert how much WHP they are good for, thanks for the help


Modified by Paolo at 3:33 PM 1/25/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Paolo &raquo;</TD></TR><TR><TD CLASS="quote">how do u know what the lb/hr is , in order to do the calculation for the injectors, i have 440 cc, how do i convert how much WHP they are good for, thanks for the help


Modified by Paolo at 3:33 PM 1/25/2007</TD></TR></TABLE>'

http://www.robietherobot.com/s...e.htm

440cc / 5 = 88 ea X 4 = 352 HP

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blueprint &raquo;</TD></TR><TR><TD CLASS="quote">DONT BUY OLD USED INJECTORS FROM CARS 10 YEARS OLD ... </TD></TR></TABLE>

AMEN! Get some RC's.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blueprint &raquo;</TD></TR><TR><TD CLASS="quote">DONT BUY OLD USED INJECTORS FROM CARS 10 YEARS OLD ... </TD></TR></TABLE>


Why not?

You can get them cleaned, balanced, etc all that good stuff and it will work fine. I have the blue tops...Been running them for over 2 years on my original motor @ 158,xxx and counting. Stock head and bottom end, no internal work. 260WHP; my only car daily driven and abused.

For anyone who's on some budget and would like to save any way they can, USED injectors will work!