hey guys you all know ive got tons of parts lying around well over the years i acquired some injectors that ive always thought were the m45 kit 310cc's... well, id like to make sure they are so i dont blow my ish up when i install the blower lol
the way i see it... stock has 5 (smaller) holes in a star pattern in the center of the injector. these others im assuming that are the 310's have 4 (larger) holes in a square pattern in the center of the injector. they look identical to the other ones only difference i see is these holes for the spray pattern.
that correct?
also, anybody know what the max output is on these things? right now i have the unorthodox UD crank pulley on and the 2.5" snout pulley on the blower. hoping to be close to what a 2.7 or 2.8 snout pulley would be as far as boost goes.
![](http://i139.photobucket.com/albums/q289/fast97z24/zyasig5.jpg)
I choose the technology built for land speed records... not the technology built to save on emissions and gas mileage.
-Z Yaaaa- wrote:stock has 5 (smaller) holes in a star pattern in the center of the injector. these others im assuming that are the 310's have 4 (larger) holes in a square pattern in the center of the injector. they look identical to the other ones only difference i see is these holes for the spray pattern.
that correct?
Yes, that would be correct
![](http://www.lasergrave.net/luke/jbo/jbo_sig.jpg)
2010 Subaru Impreza WRX Limited
1999 Cavalier Z24 Supercharged
1999 Grand AM SE (Beater Car)
1997 GMC Sierra
2007 Honda CBR 600RR
2005 Honda TRX450R
I should look at my 310s...
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
I can look at the set I have in my toolbox drawer tonight if you want Brad.
As for fuel - not sure. I keep watching GMSC injectors clip pretty bad at high rpms on boost levels over 6-7 psi. I've also managed to tune a car with 8 psi on the GMSC and secret cams and it had enough fuel to redline. I find those injectors are very hit and miss for fuel.
-Chris-
-Sweetness-
-Turbocharged-
Slowly but surely may some day win this race...
^^^ yep. i checked they are the right number thats in the book. shoulda just did that in the first place. my bad.
they must be right cuz i beat the ever living piss out of it last night and it didnt blow up so.. hehe
![](http://i139.photobucket.com/albums/q289/fast97z24/zyasig5.jpg)
I choose the technology built for land speed records... not the technology built to save on emissions and gas mileage.
I used 310's with a stock flash, and stock crank pulley back in the day for around 30K... You'll be safe.
Unless YOU mess with the tune in a bad way.
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
well im seeing a 98% duty cycle on these poor 310's. i just purchased the gmpp stage 2 LSJ 48# ones for it though so those should help. meth kit will also be along shortly. then i can put the OS crank pulley on and finally play with the big boys LOL
only seeing 147kpa (6.6) so im kind of wondering why they are so maxed out. i know its running rich though, tail pipe and plugs are jet black. does having the blower ported make that much of a difference in the boost levels?
![](http://i139.photobucket.com/albums/q289/fast97z24/zyasig5.jpg)
I choose the technology built for land speed records... not the technology built to save on emissions and gas mileage.
-Z Yaaaa- wrote:well im seeing a 98% duty cycle on these poor 310's. i just purchased the gmpp stage 2 LSJ 48# ones for it though so those should help. meth kit will also be along shortly. then i can put the OS crank pulley on and finally play with the big boys LOL
only seeing 147kpa (6.6) so im kind of wondering why they are so maxed out. i know its running rich though, tail pipe and plugs are jet black. does having the blower ported make that much of a difference in the boost levels?
remember it is less about psi and more about cfm.
I saw around a 1.5 psi drop when my blower got ported. Also the hotter the air the less molecules.
FU Tuning
right but im on 2.5 snout... youd think itd do like 8 or 9 psi if the OS crank is getting people up to 11-15.
![](http://i139.photobucket.com/albums/q289/fast97z24/zyasig5.jpg)
I choose the technology built for land speed records... not the technology built to save on emissions and gas mileage.