Advanced Forced Induction & N/A Engine Tuning This forum is brought to you by Racing Greed in Port Coquitlam.
Supercharger vs Turbocharger vs NA? Hondata vs Megasquirt? 94oct vs 87oct? Through technical discussion, let's find out what will the best option for you...
 |
 | 
10-08-2009, 10:55 PM
|
#1 | | RS Lurker, I don't post!
Join Date: Oct 2009 Location: home
Posts: 3
Thanked 0 Times in 0 Posts
Failed 0 Times in 0 Posts
| injector size for turbo
heyo I have #28 (294cc) injectors and #19 (192cc) injectors im running a 50 trim turbo and only 6psi, but at the moment 4psi until i fix the tune, anywho what should I use, should i use the small or bigger ones. Im running a not so good tune on a 2.8mfi do you think the #19 will be alright with my application
thanx
the #28 are in the car its running a little rich and bogging, should try both and see which ones i like, I do have a AFR
_________________
| 
|  | |
10-09-2009, 02:18 PM
|
#2 | | 2x Variable Nockenwellen Steuerung
Join Date: Oct 2002 Location: N49.2 W122.1
Posts: 6,176
Thanked 1,174 Times in 704 Posts
Failed 67 Times in 51 Posts
|
You also need the duty cycle.. also what kind of ECU you are running.. or what kind of car you are running.
In the end, you need to know the turbo size.. cfm etc.. so you can optimize for the best hp for the volume of air you are pushing.. so a lot of specifications and some math required.
| |
| | |
10-10-2009, 02:27 PM
|
#3 | | Need my Daily Fix of RS
Join Date: Feb 2003 Location: B.C.
Posts: 274
Thanked 5 Times in 2 Posts
Failed 0 Times in 0 Posts
|
I would go with the bigger injectors and a good tune. An experienced tuner can tune with the bigger injectors and still get a good idle and throttle response. Of course, this all depends on ecu, car... some other factors.
| |
| | |
10-10-2009, 05:17 PM
|
#4 | | 14 dolla balla & Bradford Chow aint got nothing on me!
Join Date: Oct 2006 Location: Vancouver
Posts: 624
Thanked 39 Times in 24 Posts
Failed 154 Times in 64 Posts
|
6psi? why even boost.
| |
| | |
10-11-2009, 12:29 AM
|
#5 | | Need my Daily Fix of RS
Join Date: Apr 2008 Location: GVRD
Posts: 256
Thanked 34 Times in 9 Posts
Failed 1 Time in 1 Post
|
Some factory management systems have enough headroom as stock to support 5-7psi, that might mean 40+hp. Not totally pointless, but relatively.
I can say even 28's are entirely to small for basically any 4 cylinder turbo motor.
__________________
1983 Volvo 240 Wagon. S80 T6 Swap.
541whp/467wtq, SpeedPro Dynojet Quote:
Originally Posted by dizzystar  I am better than everyone, you, your brothers, sisters, fathers, moms, even your fucking dogs. I can drive all drivetrain platforms and all types of industrial machinery, and I got a fucking nuclear sub, yeah thats right, a fucking nuclear sub.
fuck you, and all your shit.
this is revscene in it's entirety. /thread. | | |
| | |
10-12-2009, 11:22 PM
|
#6 | | Proud to be called a RS Regular!
Join Date: Nov 2008 Location: Vancouver
Posts: 120
Thanked 8 Times in 6 Posts
Failed 0 Times in 0 Posts
|
He has a 2.8liter v6
hoping to make something like 100hp over stock
I told him 28 lbs aren't very big anyways but other opinions are always nice I suppose..
| |
| | |
10-15-2009, 12:48 AM
|
#7 | | Wunder? Wonder?? Wander???
Join Date: Mar 2006 Location: Coquitlam
Posts: 214
Thanked 0 Times in 0 Posts
Failed 0 Times in 0 Posts
|
750CC and tuned with something other than a piggyback. You need to have the injectors scaled properly and have proper fuel control, otherwise kiss your motor goodbye.
| |
| | |
10-16-2009, 02:37 AM
|
#8 | | RS controls my life!
Join Date: Jan 2003 Location: Langley
Posts: 799
Thanked 284 Times in 52 Posts
Failed 3 Times in 3 Posts
|
28# injectors on a 6 cylinder turbo car will be good for about 250hp. However you can't just swap around injectors without calibrating the ecu. The best way to choose fuel injector sizes is to pick the smallest size injector that will satisfy the power your car will reach. It will make it much easier to tune. You definately don't need 750cc injectors for the power you're going to be making.
__________________
S14 240SX: 2JZ swap/w BorgWarner S366 Turbo/hks264's/Haltech E11 / 626rwhp and 523rwtq @24 psi
Shawn | |
| | |
10-17-2009, 01:54 AM
|
#9 | | Wunder? Wonder?? Wander???
Join Date: Mar 2006 Location: Coquitlam
Posts: 214
Thanked 0 Times in 0 Posts
Failed 0 Times in 0 Posts
|
Oh yes, I failed to notice 6 psi. I assumed with a 50 trim there would be loftier ambitions. 6 PSI with the 50 = snooze.
| |
| | |
Posting Rules
| You may not post new threads You may not post replies You may not post attachments You may not edit your posts
HTML code is Off
| | |
All times are GMT -8. The time now is 03:48 AM.
|
You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!
The banners on the left side and below do not show for registered users!
