HOW MUCH PSI OR WHP CAN STOCK GSR INJECTORS HANDLE
01-23-2007, 01:03 AM
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Re: HOW MUCH PSI OR WHP CAN STOCK GSR INJECTORS HANDLE (IT'S ME DAVID)
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.
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.
01-23-2007, 12:00 PM
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Re: HOW MUCH PSI OR WHP CAN STOCK GSR INJECTORS HANDLE (IT'S ME DAVID)
dude, if u cant cough up the 40$ for DSM 440's, then back away from the turbo.
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01-23-2007, 10:28 PM
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Re: HOW MUCH PSI OR WHP CAN STOCK GSR INJECTORS HANDLE (IT'S ME DAVID)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IT’S ME DAVID »</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
There are tons here for sale on HT... Browse the classifieds or better yet, use the search
01-25-2007, 01:41 PM
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Re: HOW MUCH PSI OR WHP CAN STOCK GSR INJECTORS HANDLE (IT'S ME DAVID)
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...
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...
01-25-2007, 02:02 PM
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Re: HOW MUCH PSI OR WHP CAN STOCK GSR INJECTORS HANDLE (uglyasscivic)
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
Modified by Paolo at 3:33 PM 1/25/2007
01-25-2007, 02:56 PM
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Re: HOW MUCH PSI OR WHP CAN STOCK GSR INJECTORS HANDLE (Paolo)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Paolo »</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
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
01-25-2007, 02:59 PM
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Re: HOW MUCH PSI OR WHP CAN STOCK GSR INJECTORS HANDLE (Blueprint)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blueprint »</TD></TR><TR><TD CLASS="quote">DONT BUY OLD USED INJECTORS FROM CARS 10 YEARS OLD ... 
</TD></TR></TABLE>
AMEN! Get some RC's.
</TD></TR></TABLE>AMEN! Get some RC's.
01-25-2007, 05:04 PM
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Re: HOW MUCH PSI OR WHP CAN STOCK GSR INJECTORS HANDLE (Blueprint)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blueprint »</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!
</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!
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