95dc2teg

Hey guys i have a 95 integra gsr with stock block pushing 7lbs of boost on a t3/t4 57trim .50 compressor/ .63 exhaust turbo. Im running DSM 440's right now I want to boost to 300-325 whp (and thats pretty much all i will go because ive read thats pretty much what stock block can handle) What sized injectors should i get 550? 650? also will the 440's hold up to 300-325whp?

95dc2teg

i have looked at phearble.net website and found this:

240cc = 180-190whp 310cc = 200-220whp 370cc = 220-280whp
440cc = 280-330whp 550cc = 330whp-380whp 660cc = 380whp-425whp
720cc = 425whp-475whp 880cc = 475whp-525whp 1000cc = 525whp-600whp

is this correct. because if it is then i dont need to get new injectors correct? I wanna get 300-325 whp without spending too much money, although i realize im going to need to get a 3 bar map, new wastegate spring, and walbro 255 fuel pump.

95dc2teg

bump

spoolin turbo s

i'd get 6** to be safe and not over run the injectors too much

95dc2teg

anymore input from anyone

Tippyman

I plan on getting 300 hp and bought some 680's. 550 would be the lowest I'd go. I've seen plenty of people making 300 on 550's, but not lower.

blinx9900

550's

Antilag

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">550's</TD></TR></TABLE>
I agree 550 will be plenty for ya, if your running a stock manifold and cams. My wife's old setup put down 325 whp @ 68% duty cycle w/ pump gas. 454 whp @ 90% duty cycle. w/ Red X 112octane. We were using the MSD 550 saturated injectors.

95dc2teg

what sized turbo was that on and how much psi? im looking to get 325 whp

PrecisionH23a

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95dc2teg &raquo;</TD></TR><TR><TD CLASS="quote">i have looked at phearble.net website and found this:

240cc = 180-190whp 310cc = 200-220whp 370cc = 220-280whp
440cc = 280-330whp 550cc = 330whp-380whp 660cc = 380whp-425whp
720cc = 425whp-475whp 880cc = 475whp-525whp 1000cc = 525whp-600whp

is this correct. because if it is then i dont need to get new injectors correct? I wanna get 300-325 whp without spending too much money, although i realize im going to need to get a 3 bar map, new wastegate spring, and walbro 255 fuel pump.</TD></TR></TABLE>

That sounds about right. Go with 550's.

Turbo-LS

iTrader: (4)

440-450 will get the job done but maxed. Its always better to run a larger injector and have room to grow. i personally tell everyone to get 1000cc's because 90% of people always go bigger in the future and there the same price as say a 650 or 750. EBAY direct from precision turbo 299 free shipping.

If you are 100% certain you will never go bigger then a 550cc should be plenty. Start with a base pressure of 50 psi. Better atomization of fuel at that pressure compared to stock.

aaronISthrowed

I'm using RC550s and i'm making 333whp. Leaves me only a little room to grow

Topdawgg

id just go with RC 750s and have a piece of mind

Antilag

550 should be plenty. The turbo we used was a Garrett t3/t4 57 trim .68 ar.

Schister66

RC550cc here and i'm in about the same power range as you