Direct Injection!

Lug · 03-19-2009, 02:08 PM

Quote:

Originally Posted by Brazilbro

Doesnt adding D.I. make it harder to upgrade your fuel system? Isnt that the problem they are having with the BMW I-135 running out of fuel past 6k

I'm no expert but I assumed you still used injectors and could just swap to larger ones. Then your only limit is the flow rate of the fuel pump itself.

azn370z · 03-21-2009, 03:02 PM

Maybe the 40th anniversary model will get the direct injection when in comes out in Jan? The 35th anniversary model got the new v6 while the other z didn't until the following year.

ianthegreat · 12-23-2009, 08:43 AM

QUOTE=Brazilbro;45183]Doesnt adding D.I. make it harder to upgrade your fuel system? Isnt that the problem they are having with the BMW I-135 running out of fuel past 6k[/QUOTE]

Yes, it makes regulating fuel much more difficult. Custom intake manifolds can solve this, but you're looking at a completely new control system/ecu for the car. Horse Power Freaks are known to do this and are working on a package for the 335i currently.

The n54 isn't necessarily running out of fuel past any rpm range, you're probably thinking of turbo efficiency. So far the n54 is limited to around 440rwhp in it's current set up (stock turbos). Time will tell if they can push that limit with the stock turbos/fuel system. One company has ported the stock turbos and achieved 500rwhp+ on the stock system, but I think that's pushing it a bit.

In reality, turbo upgrades are right around the corner with all the new flashes available. Hope this helps! :]

Additionally, a SC'd or Turbo'd VQ with DI -

LiquidZ · 03-19-2009, 07:13 AM

Direct-injected VQ engines coming from Infiniti, Q45 successor on the ropes?

Educ8r · 03-19-2009, 01:32 PM

"The direct-injection V6 is also expected to find it’s way in to the G37 model once it is due for a mid-cycle refresh. And you can be sure the same powerplant will be used in a mid-cycle update for the 370Z."

Source

iceman21_23 · 03-22-2009, 02:11 AM

2012 model with had D.I. the nismo model will also have the D.I. but that is all

Asheth · 03-22-2009, 03:48 AM

Quote:

Originally Posted by iceman21_23

2012 model with had D.I. the nismo model will also have the D.I. but that is all

Yea I agree here it said the Z would have it for its refresh. Which about 3 years so that means the new G's will probably have about the same performance numbers as the Z when they get D.I.

zZSportZz · 03-22-2009, 08:05 AM

In three years it will be time to purchase a new Z anyway

I had my last vehicle for 1 year 9 months lol.

WShade · 03-22-2009, 11:15 AM

Quote:

Originally Posted by zZSportZz

In three years it will be time to purchase a new Z anyway

4 years or about 50K miles and I will be ready just as well.

alan93rsa · 03-22-2009, 07:14 PM

If the same fuel pump woes follow the Z with direct injection then I am happy not to have it. I kept waiting for the fuel pump to fail on my 335.

ianthegreat · 12-23-2009, 08:47 AM

Quote:

Originally Posted by alan93rsa

If the same fuel pump woes follow the Z with direct injection then I am happy not to have it. I kept waiting for the fuel pump to fail on my 335.

haha +1

i'm actually dreading this as I'm at 34k original HPFP. I'm just waiting for it to die so I can reinstall my mods

355890 · 03-22-2009, 09:07 PM

Direct Injection is fantastic. High fuel pumps and upgrades galore. This is old technology....surprised this is not on an 09 vehicle at this point in time, especially such vehicles as the Z. I would be surprised if this is not include in the 2010 model year.

tvfreakazoid · 03-23-2009, 02:25 AM

I agree it should of came with it. Hopefully it will come in the 2010 model.

Quote:

Originally Posted by 355890

Direct Injection is fantastic. High fuel pumps and upgrades galore. This is old technology....surprised this is not on an 09 vehicle at this point in time, especially such vehicles as the Z. I would be surprised if this is not include in the 2010 model year.

JoeyD · 03-23-2009, 12:08 PM

My Mazdaspeed6 was DI. I wasn't impressed (at least not by the fuel system).

Mr. C · 07-12-2009, 12:39 AM

Nissan Green Program 2010
Green Car Congress: Nissan Announces Green Program 2010; Aggressive Plan Includes Clean Diesel, Fuel Efficiency, Hybrids, Plug-in Hybrids and EVs

"Combining direct injection gasoline engine with Variable Valve Event & Lift System (VEL) for V6 and V8 engines."

I'm patiently waiting for DI and more aftermarket offerings

03-21-2009, 03:02 PM	#2 (permalink)
azn370z A True Z Fanatic Join Date: Nov 2008 Location: Seattle Posts: 1,722 Drives: z34 - R1 Rep Power: 490	Maybe the 40th anniversary model will get the direct injection when in comes out in Jan? The 35th anniversary model got the new v6 while the other z didn't until the following year. __________________ 2010 k23 H&R sport springs / Spc rear camber arms / SSR SP1 / Berk cbe / Varis cf lip / Nismo S-Tune side skirts

12-23-2009, 08:43 AM	#3 (permalink)
ianthegreat Base Member Join Date: Mar 2009 Location: TEXAS Posts: 171 Drives: 08 335i, 86 Ranger Rep Power: 17	QUOTE=Brazilbro;45183]Doesnt adding D.I. make it harder to upgrade your fuel system? Isnt that the problem they are having with the BMW I-135 running out of fuel past 6k[/QUOTE] Yes, it makes regulating fuel much more difficult. Custom intake manifolds can solve this, but you're looking at a completely new control system/ecu for the car. Horse Power Freaks are known to do this and are working on a package for the 335i currently. The n54 isn't necessarily running out of fuel past any rpm range, you're probably thinking of turbo efficiency. So far the n54 is limited to around 440rwhp in it's current set up (stock turbos). Time will tell if they can push that limit with the stock turbos/fuel system. One company has ported the stock turbos and achieved 500rwhp+ on the stock system, but I think that's pushing it a bit. In reality, turbo upgrades are right around the corner with all the new flashes available. Hope this helps! :] Additionally, a SC'd or Turbo'd VQ with DI - __________________ JB4 - Helix FMIC - Forge Diverter Valves - UR CAI - RR Downpipes - Bastuck Exhaust - Devils Own Stage 2 Meth Kit - Fully Catless - 423whp 489wtq Last edited by ianthegreat; 12-23-2009 at 08:53 AM.

03-19-2009, 01:32 PM	#5 (permalink)
Educ8r Enthusiast Member Join Date: Nov 2008 Location: Houston Posts: 397 Drives: a car Rep Power: 17	"The direct-injection V6 is also expected to find it’s way in to the G37 model once it is due for a mid-cycle refresh. And you can be sure the same powerplant will be used in a mid-cycle update for the 370Z." Source __________________ imagination + creativity = endless possibilities

03-22-2009, 07:14 PM	#10 (permalink)
alan93rsa Enthusiast Member Join Date: Feb 2009 Location: Ohio Posts: 412 Drives: 16 Cayman GT4 Red Rep Power: 221	If the same fuel pump woes follow the Z with direct injection then I am happy not to have it. I kept waiting for the fuel pump to fail on my 335. __________________ 16 Cayman GT4, Carmine Red, Buckets, PCCB etc.

03-23-2009, 12:08 PM	#14 (permalink)
JoeyD Enthusiast Member Join Date: Jan 2009 Location: Raeford, NC Posts: 305 Drives: 09 NISMO 370Z Rep Power: 187	My Mazdaspeed6 was DI. I wasn't impressed (at least not by the fuel system). __________________ When was the last time you did 230MPH in something with 4 seats?

03-19-2009, 07:13 AM	#4 (permalink)
LiquidZ A True Z Fanatic Join Date: Nov 2008 Location: Columbus, OH Posts: 1,940 Drives: Mag. Black 2009 370Z Rep Power: 705	Direct-injected VQ engines coming from Infiniti, Q45 successor on the ropes?

03-22-2009, 02:11 AM	#6 (permalink)
iceman21_23 Track Member Join Date: Jan 2009 Location: league city, tx Posts: 757 Drives: 09' Solid Red 370z Rep Power: 18	2012 model with had D.I. the nismo model will also have the D.I. but that is all

03-22-2009, 08:05 AM	#8 (permalink)
zZSportZz A True Z Fanatic Join Date: Mar 2009 Location: Maryland Posts: 1,095 Drives: 370z Blk on Blk 6MT Rep Power: 19	In three years it will be time to purchase a new Z anyway I had my last vehicle for 1 year 9 months lol.

03-22-2009, 09:07 PM	#12 (permalink)
355890 Enthusiast Member Join Date: Mar 2009 Location: Austin, Texas Posts: 416 Drives: GP Z Base+Sport (6m) Rep Power: 542	Direct Injection is fantastic. High fuel pumps and upgrades galore. This is old technology....surprised this is not on an 09 vehicle at this point in time, especially such vehicles as the Z. I would be surprised if this is not include in the 2010 model year.

07-12-2009, 12:39 AM	#15 (permalink)
Mr. C Base Member Join Date: Jul 2009 Location: Texas Posts: 7 Drives: 2009 G37 7A Rep Power: 17	Nissan Green Program 2010 Green Car Congress: Nissan Announces Green Program 2010; Aggressive Plan Includes Clean Diesel, Fuel Efficiency, Hybrids, Plug-in Hybrids and EVs "Combining direct injection gasoline engine with Variable Valve Event & Lift System (VEL) for V6 and V8 engines." I'm patiently waiting for DI and more aftermarket offerings

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