INJECTORS: VQ30DE vs. VQ30DE-K vs. VQ35DE?
08-21-2003, 11:09 PM
#1
INJECTORS: VQ30DE vs. VQ30DE-K vs. VQ35DE?
VQ30DEs are running 370cc Z32 injectors.
VQ35DEs are running 440cc injectors using E-manage in the Greddy TT car. I know that
SR20DETs and RB25DETs are running Blitz 550cc with a JWT or similar ECU.
So, my question is WHAT injectors fit a VQ30DE-K? Also, can someone explain what's the difference between the different Maxima injectors physically? Is there ANYthing similar physically that *might* fit, but offers a higher flow rate?
Last, if the E-manage in the 350Z is able to control 440cc injectors, couldn't it work for other Maximas?
VQ35DEs are running 440cc injectors using E-manage in the Greddy TT car. I know that
SR20DETs and RB25DETs are running Blitz 550cc with a JWT or similar ECU.
So, my question is WHAT injectors fit a VQ30DE-K? Also, can someone explain what's the difference between the different Maxima injectors physically? Is there ANYthing similar physically that *might* fit, but offers a higher flow rate?
Last, if the E-manage in the 350Z is able to control 440cc injectors, couldn't it work for other Maximas?
08-22-2003, 04:47 AM
#2
Senior Member
Join Date: Sep 2000
Posts: 1,452
Re: INJECTORS: VQ30DE vs. VQ30DE-K vs. VQ35DE?
I haven't done research on it yet but I was going to try 440cc injectors in my car when I pick up the eManage. I don't intend to get enough HP to make use of 550cc's but I want a little more umph than say, 370cc's. I was going to check if RC Engineering had them available and pick them up directly from them. Anyone want to help me out and tell me which ones I'm looking for? 
I don't know if maxima injectors are saturated or peak and hold. I was going to ask RC when I called them but I suppose knowing prior would help make sure I don't end up with junk that won't fit my car. Assuming they fit, they SHOULD work because it's the same engine as the 2002+ max.
I don't know if maxima injectors are saturated or peak and hold. I was going to ask RC when I called them but I suppose knowing prior would help make sure I don't end up with junk that won't fit my car. Assuming they fit, they SHOULD work because it's the same engine as the 2002+ max.
08-22-2003, 09:26 AM
#3
Re: Re: INJECTORS: VQ30DE vs. VQ30DE-K vs. VQ35DE?
Originally posted by ereet
I haven't done research on it yet but I was going to try 440cc injectors in my car when I pick up the eManage. I don't intend to get enough HP to make use of 550cc's but I want a little more umph than say, 370cc's. I was going to check if RC Engineering had them available and pick them up directly from them. Anyone want to help me out and tell me which ones I'm looking for? I don't know if maxima injectors are saturated or peak and hold. I was going to ask RC when I called them but I suppose knowing prior would help make sure I don't end up with junk that won't fit my car. Assuming they fit, they SHOULD work because it's the same engine as the 2002+ max.
I haven't done research on it yet but I was going to try 440cc injectors in my car when I pick up the eManage. I don't intend to get enough HP to make use of 550cc's but I want a little more umph than say, 370cc's. I was going to check if RC Engineering had them available and pick them up directly from them. Anyone want to help me out and tell me which ones I'm looking for?
I don't know if maxima injectors are saturated or peak and hold. I was going to ask RC when I called them but I suppose knowing prior would help make sure I don't end up with junk that won't fit my car. Assuming they fit, they SHOULD work because it's the same engine as the 2002+ max.
08-24-2003, 06:27 PM
#4
Any injector that fits in a VQ35DE (FWD versions at least) will fit in a VQ30DE-K. The '02 Maxima injectors are 315cc @ 3.5 bar and 270cc at 3.0 bar. Technically you could buy '03 Cobra 39 pound injectors from Ford for a faily cheap $40-$50 each and use different connectors. I can get them cheaper than that.
08-24-2003, 08:00 PM
#5
Originally posted by SR20DEN
Any injector that fits in a VQ35DE (FWD versions at least) will fit in a VQ30DE-K. The '02 Maxima injectors are 315cc @ 3.5 bar and 270cc at 3.0 bar. Technically you could buy '03 Cobra 39 pound injectors from Ford for a faily cheap $40-$50 each and use different connectors. I can get them cheaper than that.
Any injector that fits in a VQ35DE (FWD versions at least) will fit in a VQ30DE-K. The '02 Maxima injectors are 315cc @ 3.5 bar and 270cc at 3.0 bar. Technically you could buy '03 Cobra 39 pound injectors from Ford for a faily cheap $40-$50 each and use different connectors. I can get them cheaper than that.
But that brings me to erret's question....
our injectors are ________________ ??? saturated or peak and hold
Those are the two choices, unless they are something else then I am lost like a ball in tall weeds
08-25-2003, 09:44 AM
#7
Originally posted by SR20DEN
Any injector that fits in a VQ35DE (FWD versions at least) will fit in a VQ30DE-K. The '02 Maxima injectors are 315cc @ 3.5 bar and 270cc at 3.0 bar. Technically you could buy '03 Cobra 39 pound injectors from Ford for a faily cheap $40-$50 each and use different connectors. I can get them cheaper than that.
Any injector that fits in a VQ35DE (FWD versions at least) will fit in a VQ30DE-K. The '02 Maxima injectors are 315cc @ 3.5 bar and 270cc at 3.0 bar. Technically you could buy '03 Cobra 39 pound injectors from Ford for a faily cheap $40-$50 each and use different connectors. I can get them cheaper than that.
For some reason I thought before you had said the VQ30DE-K injectors were different then either VQ30DE or VQ35DE.
I believe the -K injectors are 240cc, but I'm not sure at what psi(34psi?).
-K idle fuel pressure is 34psi and with vacuum hose disconnected it's 43psi(WOT?).So PHYSICALLY the Cobra injectors will fit, just the connectors need to be modified? What about the impedance difference? Concern?
08-25-2003, 12:29 PM
#10
Originally posted by IceY2K1
So what would swapping from -K to VQ35 injectors buy you?
The ECU might accept 240cc->270cc.
So what would swapping from -K to VQ35 injectors buy you?
The ECU might accept 240cc->270cc.
08-25-2003, 12:43 PM
#11
Originally posted by SR20DEN
If they are really 240cc in the -K then the ECU should be able to adjust the fuel trims to make the 270cc infectors work.
If they are really 240cc in the -K then the ECU should be able to adjust the fuel trims to make the 270cc infectors work.
08-25-2003, 04:12 PM
#13
Senior Member
Join Date: Sep 2000
Posts: 1,452
Originally posted by SR20DEN
[B]They're peak and hold, top feed.
The original VQ30DE injectors are saturated. That is why you cna use the 300ZX TT 370cc injectors in them.[B]
[B]They're peak and hold, top feed.
The original VQ30DE injectors are saturated. That is why you cna use the 300ZX TT 370cc injectors in them.[B]
??????So the injectors in my 97 VQ30DE are saturated? Or peak and hold?
08-26-2003, 11:00 AM
#14
Originally posted by ereet
?????? ??????
So the injectors in my 97 VQ30DE are saturated? Or peak and hold?
??????
??????So the injectors in my 97 VQ30DE are saturated? Or peak and hold?
Seems like 300Z non-turbo and turbo used different types and 95-96 300Z injectors are different also.
I'd make DAMN sure you don't mix them up or you'll have problems.
09-03-2003, 04:39 PM
#15
*update*
According to DAVEB:
SR Sentra, VQ30DE-K, and VQ35DE 350Z ONLY injectors are the same part numbers.
So, the VQ35 Maxima injectors are unique, but the -K injectors are the same as the 350Z. Looks like whatever injectors the GReddy TT 350Z is using with the E-manage *MIGHT* be an option for the VQ30DE-K guys.
VQ35 Maxima owners are the ones left out.
SR Sentra, VQ30DE-K, and VQ35DE 350Z ONLY injectors are the same part numbers.
So, the VQ35 Maxima injectors are unique, but the -K injectors are the same as the 350Z. Looks like whatever injectors the GReddy TT 350Z is using with the E-manage *MIGHT* be an option for the VQ30DE-K guys.
VQ35 Maxima owners are the ones left out.
09-03-2003, 06:27 PM
#16
Supporting Maxima.org Member
Join Date: Nov 2000
Posts: 1,275
Originally Posted by IceY2K1
According to DAVEB:
SR Sentra, VQ30DE-K, and VQ35DE 350Z ONLY injectors are the same part numbers.
So, the VQ35 Maxima injectors are unique, but the -K injectors are the same as the 350Z. Looks like whatever injectors the GReddy TT 350Z is using with the E-manage *MIGHT* be an option for the VQ30DE-K guys.
VQ35 Maxima owners are the ones left out.
SR Sentra, VQ30DE-K, and VQ35DE 350Z ONLY injectors are the same part numbers.
So, the VQ35 Maxima injectors are unique, but the -K injectors are the same as the 350Z. Looks like whatever injectors the GReddy TT 350Z is using with the E-manage *MIGHT* be an option for the VQ30DE-K guys.
VQ35 Maxima owners are the ones left out.
Thats worth checkin into... a little off topic but the advertisement for the CustomMaxima Stage 2 turbo kit claims to include bigger injectors for the 99-01 maximas. So obviously Greg has been working w/some company to produce injectors for the 00-01 Max's too! When I called to inquire as to whether or not I could buy them separately, I didnt really get a definitive answer. I was told to check back in 2 weeks. Maybe someone else can grlle them and see what the story is w/the custommaxima injectors.
Deac
09-03-2003, 06:58 PM
#17
Originally Posted by Deac
Thats worth checkin into... a little off topic but the advertisement for the CustomMaxima Stage 2 turbo kit claims to include bigger injectors for the 99-01 maximas. So obviously Greg has been working w/some company to produce injectors for the 00-01 Max's too! When I called to inquire as to whether or not I could buy them separately, I didnt really get a definitive answer. I was told to check back in 2 weeks. Maybe someone else can grlle them and see what the story is w/the custommaxima injectors.
Deac
Deac
http://www.turbomagazine.com/features/0307tur_350z/
Tuning is accomplished with leading-edge electronics, namely a GReddy e-Manage piggyback computer and a PRofec e-01 boost controller outfitted with a trick e-Manage programmer. The e-Manage commands upgraded 440cc RC Engineering injectors designed to fit the OE intake manifold and get the power flowing while keeping factory-spec duty cycles. A Trust Japan technician familiar with the e-Manage system was flown over to whip the twin-turbo VQ35DE into shape. GReddy's Mike Chung reports that "Surprisingly, the turbocharged Z took the e-Manage very well, although we weren't successful in getting the ignition control feature to work. We took the tuning very slow because of the V6's high compression of 10.3:1. Little by little, the car began to run better and better. We finally figured about 5.6 psi should be within a safe limit through the factory catalytic converters, while still making a big punch in the power department."
WE NEED TO TRY THESE!
09-03-2003, 07:00 PM
#18
OR a GReddy Rebic IV Sub-Injector Controller...$586
http://www.tornactive.com/pd_greddy_rebic.cfm
http://www.tornactive.com/pd_greddy_rebic.cfm
The Rebic IV is designed to help add additional fuel to any force induction system. Install additional injector(s) on your charge pipe or intake and program the Rebic IV to contorl the new dutty cycle This unit works independently form any other system, this means it can supplement your main system (factory, stand-alone, even carburetors.) Control 1 to 8 sub-injectors, by tuning in a fuel map from three adjustable parameters: Boost, RPM, and Injector Duty Cycle.
09-04-2003, 07:39 AM
#20
Originally Posted by IceY2K1
According to DAVEB:
SR Sentra, VQ30DE-K, and VQ35DE 350Z ONLY injectors are the same part numbers.
So, the VQ35 Maxima injectors are unique, but the -K injectors are the same as the 350Z. Looks like whatever injectors the GReddy TT 350Z is using with the E-manage *MIGHT* be an option for the VQ30DE-K guys.
VQ35 Maxima owners are the ones left out.
SR Sentra, VQ30DE-K, and VQ35DE 350Z ONLY injectors are the same part numbers.
So, the VQ35 Maxima injectors are unique, but the -K injectors are the same as the 350Z. Looks like whatever injectors the GReddy TT 350Z is using with the E-manage *MIGHT* be an option for the VQ30DE-K guys.
VQ35 Maxima owners are the ones left out.
What? 350Z uses 240cc injectors?
09-04-2003, 05:05 PM
#23
****UPDATE****
Originally Posted by DAVEB
Alex-
That's still pretty much true, except our new parts disc says SR20DE Sentras now have a different part #. Also "2004.5" 350Z's have a new part # from 10/03 & later. We have parts listings for cars that don't exist yet!
-David
That's still pretty much true, except our new parts disc says SR20DE Sentras now have a different part #. Also "2004.5" 350Z's have a new part # from 10/03 & later. We have parts listings for cars that don't exist yet!
-David
09-04-2003, 09:55 PM
#24
my tuner did a flow test for my stock injectors on the VQ35DE on my Z.. we only got something like 300 ish.. and with my TT kit we saw 95% duty cycle with the stock boost on the turbos..
we swapped em out with 400 and upped the boost and then we took some more measurements and saw a 90% duty cycle.. damn... so i think the next move for us is to go 500 or 550s to get some 'play room'
luckily for me, the Z ecu can be tuned for larger injectors.
we swapped em out with 400 and upped the boost and then we took some more measurements and saw a 90% duty cycle.. damn... so i think the next move for us is to go 500 or 550s to get some 'play room'
luckily for me, the Z ecu can be tuned for larger injectors.
09-04-2003, 10:01 PM
#25
Originally Posted by Chebosto
my tuner did a flow test for my stock injectors on the VQ35DE on my Z.. we only got something like 300 ish.. and with my TT kit we saw 95% duty cycle with the stock boost on the turbos..
we swapped em out with 400 and upped the boost and then we took some more measurements and saw a 90% duty cycle.. damn... so i think the next move for us is to go 500 or 550s to get some 'play room'
luckily for me, the Z ecu can be tuned for larger injectors.
we swapped em out with 400 and upped the boost and then we took some more measurements and saw a 90% duty cycle.. damn... so i think the next move for us is to go 500 or 550s to get some 'play room'
luckily for me, the Z ecu can be tuned for larger injectors.
300cc/min? And if so at what fuel pressure? Can you get us a picture of the injectors and fuel rail?
09-09-2003, 03:39 PM
#27
Originally Posted by Chebosto
i think it was 95% at 80psi? i have to double check..
240cc injectors@43.5psi increased to 80psi
80/43.5=1.839
sqrt(1.839)=1.356
1.356*240=325.47cc@80psi
Supposedly, 40% more fuel is the max additional flow by bumping fuel pressure, so that would mean 240cc injectors could flow ~336cc.
09-09-2003, 09:19 PM
#28
http://bigdogjonx.com:81/fullpics/turbo/injectors/
This shows how the 5th gen injectors are. Very clear and upclose shots.
Sorry I posted this already in one of the other threads, but its more appropiate here.
Dixit
This shows how the 5th gen injectors are. Very clear and upclose shots.
Sorry I posted this already in one of the other threads, but its more appropiate here.
Dixit
)
10-02-2003, 04:29 PM
#31
Can you put them back up for comparison?
The pics aren't showing.
The pics aren't showing.
Originally Posted by BigDogJonx
http://bigdogjonx.com:81/fullpics/turbo/injectors/
This shows how the 5th gen injectors are. Very clear and upclose shots.
Sorry I posted this already in one of the other threads, but its more appropiate here.
Dixit
This shows how the 5th gen injectors are. Very clear and upclose shots.
Sorry I posted this already in one of the other threads, but its more appropiate here.
Dixit
10-02-2003, 04:50 PM
#33
I'm betting it's my fuking firewall and that port 80 ish.
Anyways, throw a couple of them on Cardomain, so I can compare if you don't mind.
Anyways, throw a couple of them on Cardomain, so I can compare if you don't mind.
Originally Posted by BigDogJonx
There working here..... let me know if they still aint, we can put it on another site.
Dixit
Dixit
10-02-2003, 04:56 PM
#34
http://users.adelphia.net/~dsuthar/t.../injector1.jpg
http://users.adelphia.net/~dsuthar/t.../injector2.jpg
http://users.adelphia.net/~dsuthar/t.../injector3.jpg
http://users.adelphia.net/~dsuthar/t.../injector4.jpg
Here just for you.....
Shiet, these look almost identical. Too bad the injector on the Z didnt have the part #
Dixit
http://users.adelphia.net/~dsuthar/t.../injector2.jpg
http://users.adelphia.net/~dsuthar/t.../injector3.jpg
http://users.adelphia.net/~dsuthar/t.../injector4.jpg
Here just for you.....
Shiet, these look almost identical. Too bad the injector on the Z didnt have the part #Dixit
10-02-2003, 05:19 PM
#35
Dude...they're the same! Except the 350Z are 
purple.
I've found AT LEAST four websites saying BOTH the 350Z and 2K-2K1 use BOSCH C1000-112886 injectors. Not to mention DAVEB has been saying they're the SAME part numbers all along.
Let the games begin! Now we need to find out if RC Engineering is making 3XX injectors for the 350Z or if they are only making 440cc that will require an eManage.
purple.I've found AT LEAST four websites saying BOTH the 350Z and 2K-2K1 use BOSCH C1000-112886 injectors. Not to mention DAVEB has been saying they're the SAME part numbers all along.
Let the games begin! Now we need to find out if RC Engineering is making 3XX injectors for the 350Z or if they are only making 440cc that will require an eManage.
10-03-2003, 09:12 AM
#37
The Cobra ones are 315-400cc, right?
Not the 350Z ones.
Not the 350Z ones.
Originally Posted by SR20DEN
Those injectors are the same color (IIRC) as the ones in the '03 Cobra. Those are probably over 315cc. I would say closer to 400cc.
10-03-2003, 10:36 AM
#38
Originally Posted by IceY2K1
The Cobra ones are 315-400cc, right?
Not the 350Z ones.
Not the 350Z ones.
The '03+ Cobra injectors are 39#
10-03-2003, 10:49 AM
#39
THEY'RE THE SAME 240CC INJECTORS AS THE 2K-2K1 MAXIMA HAS, SO GET OVER IT!!!!!! 
Also, Cheston pretty much confirmed that with his flow testing. 3xx cc at 80psi would mean 240ish cc injectors.
Originally Posted by SR20DEN
I said those.. meaning those 350Z injectors. I refuse to beleive they would be smaller than what is in the Maxima. It makes no logical sense what soever.
The '03+ Cobra injectors are 39#
The '03+ Cobra injectors are 39#
10-03-2003, 11:01 AM
#40
Originally Posted by IceY2K1
THEY'RE THE SAME 240CC INJECTORS AS THE 2K-2K1 MAXIMA HAS, SO GET OVER IT!!!!!! Also, Cheston pretty much confirmed that with his flow testing. 3xx cc at 80psi would mean 240ish cc injectors.
The Z injectors also use a JECS number as well.