Fuel injectors question. - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

afishl1 · 06-04-2015, 12:27 AM

Lol, so even at max everything, 2000cc I imagine would cover it? 2000cc gonna be anymore difficult to tune with than 1000cc?

cdrazic93 · 06-04-2015, 12:38 AM

Quote:

Originally Posted by CSG Mike

5000CC injectors.... could theoretically pump enough fuel for 3800hp on a 4 cylinder engine.

because turbo(s) so big, you need an aviation license for that jet...er i mean "car".

afishl1 · 06-04-2015, 12:47 AM

Yes, jet turbine

#maverick# · 06-04-2015, 05:05 AM

It may be a little big for your goals. If those 900s are DW injectors, Id advise you against getting injectors from DW. Everyone I know with DW injectors has had nothing but problems.

afishl1 · 06-04-2015, 06:39 AM

What do u recommend?

#maverick# · 06-04-2015, 11:27 AM

I like IDs, however FICs are great too

Illuminaughty · 06-04-2015, 03:28 PM

Quote:

Originally Posted by afishl1

I heard there actually are 5000cc injectors... say everything was built to the max, crazy big turbo, think you'd ever need that? What's the biggest you'd need? For lower applications would a 1000cc work better/more efficiently than a 5000cc?
Don't know exactly what I'm gonna do, may do some crazy stuff down the road and wouldn't want to have to swap out again.

From my understanding, there is a minimum pulse width that injectors can run. So they're always squirting at 1000cc/min, you just leave them open less time to dump less fuel. I'd guess that for the 5000cc/min injectors even at the smallest pulse width you'd be swallowing a ton of fuel or have really unpredictable fuel flow.

After typing out the above comment I took to google to make sure I wasn't spewing non-sense and found a fantastic article. Check this out.
http://injectordynamics.com/articles/low-pulse-tech/

Sportsguy83 · 06-04-2015, 05:25 PM

Quote:

Originally Posted by #maverick#

It may be a little big for your goals. If those 900s are DW injectors, Id advise you against getting injectors from DW. Everyone I know with DW injectors has had nothing but problems.

Same experience here...

I recommend ID's too, very consistent.

#maverick# · 06-04-2015, 10:34 PM

Quote:

Originally Posted by Sportsguy83

Same experience here...

I recommend ID's too, very consistent.

Yea their pumps are great but they dropped the ball on those injectors, always having little issues

BirgeyT1 · 06-04-2015, 11:12 PM

Glad to see you guys like ID's! But I may be partial

xxscaxx · 06-05-2015, 02:32 PM

The only little annoying thing about ID's is they are a taller injector, which makes longer bolts and spacers a necessity...and then the injector covers are a tight fit. Just a FYI.

BirgeyT1 · 06-05-2015, 03:35 PM

Quote:

Originally Posted by xxscaxx

The only little annoying thing about ID's is they are a taller injector, which makes longer bolts and spacers a necessity...and then the injector covers are a tight fit. Just a FYI.

If you go with the ID850's it's not an issue since they use the compact body but, yes, the ID1000's do require fuel rail spacers.

Sportsguy83 · 06-05-2015, 04:31 PM

I'll take taller injectors and spacers any and every day over oem fit injectors that aren't consistent. One day they behave X way, 2 days later they behave Y way and are hard to tune.

Just another point of view.

afishl1 · 06-05-2015, 10:59 PM

Are the fic injectors taller/need spacers?

06-04-2015, 05:05 AM	#18
#maverick# Senior Member Join Date: May 2014 Drives: 2006 Pontiac GP (SOLD), 2014 FR-S Location: Chicago Posts: 378 Thanks: 296 Thanked 145 Times in 113 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	It may be a little big for your goals. If those 900s are DW injectors, Id advise you against getting injectors from DW. Everyone I know with DW injectors has had nothing but problems. __________________ "Project cars are like New Years Eve. Endless preparation, hype, a sleepless night of fun, followed promptly by massive headaches and regret." - Anonymous

06-04-2015, 11:27 AM	#20
#maverick# Senior Member Join Date: May 2014 Drives: 2006 Pontiac GP (SOLD), 2014 FR-S Location: Chicago Posts: 378 Thanks: 296 Thanked 145 Times in 113 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I like IDs, however FICs are great too __________________ "Project cars are like New Years Eve. Endless preparation, hype, a sleepless night of fun, followed promptly by massive headaches and regret." - Anonymous

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06-04-2015, 12:27 AM	#15
afishl1 Member Join Date: Feb 2013 Drives: Raven FRS MT Location: Los Angeles Posts: 70 Thanks: 11 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Lol, so even at max everything, 2000cc I imagine would cover it? 2000cc gonna be anymore difficult to tune with than 1000cc?

06-04-2015, 12:47 AM	#17
afishl1 Member Join Date: Feb 2013 Drives: Raven FRS MT Location: Los Angeles Posts: 70 Thanks: 11 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Yes, jet turbine

06-04-2015, 06:39 AM	#19
afishl1 Member Join Date: Feb 2013 Drives: Raven FRS MT Location: Los Angeles Posts: 70 Thanks: 11 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	What do u recommend?

06-05-2015, 02:32 PM	#25
xxscaxx Senior Member Join Date: Jul 2012 Drives: 2013 SWP BRZ Location: New York Posts: 2,240 Thanks: 458 Thanked 878 Times in 556 Posts Mentioned: 34 Post(s) Tagged: 0 Thread(s)	The only little annoying thing about ID's is they are a taller injector, which makes longer bolts and spacers a necessity...and then the injector covers are a tight fit. Just a FYI.

06-05-2015, 10:59 PM	#28
afishl1 Member Join Date: Feb 2013 Drives: Raven FRS MT Location: Los Angeles Posts: 70 Thanks: 11 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Are the fic injectors taller/need spacers?

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