Maximum Boost - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

RacerBoi · 10-29-2002, 10:28 AM

I know this question has probably been answered before but so has about 75% of the questions being asked... So no telling me to search or flames would be appreciated. I would just like to know what would be the maximum boost I could run with stock injectors on a KA with an intercooler. Thanks again.

*Jeff240sx* · 10-29-2002, 10:46 AM

You can run a little over 4 psi on stock injectors without doing anything.  And depending on how risky you wanna be, you can get way up there.  The highest I know of is someone running 9 psi on an RRFPR and walbro fuel pump.  I wouldn't do this, but that guy is happy with his setup.
-Jeff

stil bil · 10-29-2002, 11:23 AM

hey jeff what have you done fuel wise, i see that you have the tial wastegate that is set at 6.5 psi, and dont see a boost controller on the list so are you running that on stock fuel?

Kreator · 10-29-2002, 06:39 PM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (stil bil @ Oct. 29 2002,12:23)</td></tr><tr><td id="QUOTE">hey jeff what have you done fuel wise, i see that you have the tial wastegate that is set at 6.5 psi, and dont see a boost controller on the list so are you running that on stock fuel?</td></tr></table><span id='postcolor'>
Uhh those 3 things have nothing in common. He uses a spring set at 6.5 psi. Boost controller lets u run more than a spring, but u can never run less than that. And iirc he is running it on stock injectors and searching for sr 370cc ones.

*Jeff240sx* · 10-30-2002, 12:16 AM

Woot!  He looked at my page!
Yea.  I moved like 200 miles from home, have no job, live by myself, and am generally poor.  So I haven't done anything fuel-wise.  
Then I have a crunched front end that needs to be fixed, an auto tranny that needs to be put out of it's misery, and am a boostaholic.  So I'm working on it.
But my system (untill summer) will either be:
a) afc and 370cc injectors, or
b) ecu reprogram (enjuku if I ever get around to calling them) and 370cc injectors.
-Jeff

10-29-2002, 10:28 AM	#1
RacerBoi Leaky Injector Join Date: Jul 2002 Location: Annapolis, MD Age: 41 Posts: 130 Trader Rating: (0) Feedback Score: 0 reviews	I know this question has probably been answered before but so has about 75% of the questions being asked... So no telling me to search or flames would be appreciated. I would just like to know what would be the maximum boost I could run with stock injectors on a KA with an intercooler. Thanks again. __________________ '98 240SX -s13 -> s14 Injen intake swap -B&M Short Shifter

10-29-2002, 10:46 AM	#2
Jeff240sx I hate you too... Join Date: Jul 2001 Location: Tampa, FL Age: 42 Posts: 5,828 Trader Rating: (0) Rides Gallery: Jeff240sx Feedback Score: 0 reviews	You can run a little over 4 psi on stock injectors without doing anything.  And depending on how risky you wanna be, you can get way up there.  The highest I know of is someone running 9 psi on an RRFPR and walbro fuel pump.  I wouldn't do this, but that guy is happy with his setup. -Jeff __________________ Whatup?

10-29-2002, 11:23 AM	#3
stil bil Zilvia Junkie Join Date: Jun 2002 Location: Texas Age: 43 Posts: 320 Trader Rating: (0) Feedback Score: 0 reviews	hey jeff what have you done fuel wise, i see that you have the tial wastegate that is set at 6.5 psi, and dont see a boost controller on the list so are you running that on stock fuel? __________________ DUDE I'M GETTING A TURBO!!

10-29-2002, 06:39 PM	#4
Kreator Nissanaholic! Join Date: Mar 2002 Location: MD Age: 41 Posts: 1,975 Trader Rating: (0) Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (stil bil @ Oct. 29 2002,12:23)</td></tr><tr><td id="QUOTE">hey jeff what have you done fuel wise, i see that you have the tial wastegate that is set at 6.5 psi, and dont see a boost controller on the list so are you running that on stock fuel?</td></tr></table><span id='postcolor'> Uhh those 3 things have nothing in common. He uses a spring set at 6.5 psi. Boost controller lets u run more than a spring, but u can never run less than that. And iirc he is running it on stock injectors and searching for sr 370cc ones. __________________ кто болеет за Зенит, у того всегда стоит!

10-30-2002, 12:16 AM	#5
Jeff240sx I hate you too... Join Date: Jul 2001 Location: Tampa, FL Age: 42 Posts: 5,828 Trader Rating: (0) Rides Gallery: Jeff240sx Feedback Score: 0 reviews	Woot!  He looked at my page! Yea.  I moved like 200 miles from home, have no job, live by myself, and am generally poor.  So I haven't done anything fuel-wise.   Then I have a crunched front end that needs to be fixed, an auto tranny that needs to be put out of it's misery, and am a boostaholic.  So I'm working on it. But my system (untill summer) will either be: a) afc and 370cc injectors, or b) ecu reprogram (enjuku if I ever get around to calling them) and 370cc injectors. -Jeff __________________ Whatup?