5th Generation Maxima (2000-2003) Learn more about the 5th Generation Maxima, including the VQ30DE-K and VQ35DE engines.

extended redline with stock injecters? ur not getting all the powerr!

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Old Jul 26, 2011 | 07:23 AM
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extended redline with stock injecters? ur not getting all the powerr!

on the sentra forum where they do vq swaps and go far beyond what us maxima guys go with our motors have found out that with an extended redline with stock injectors you are not making all the power you should ... since the stock injecters max out their duty cycle in those rpms... idk if its true but this guy has a team built track car that they dynoed with and without stock injecters.... upgrading to 350z inj. will give you the most power uptop heres the thread if any1 wants to discuss lol

http://www.b15u.com/2j-racing/20897-...-injector.html
Old Jul 26, 2011 | 08:05 AM
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I didn't click the link. But unless your making around 270whp at 7200rpm+, Dek/350z injectors will be fine. Also, remember that unless cams and/or a modded IM is installed, that amount of power at 6500rpm+ is damn near impossible.
Old Jul 26, 2011 | 08:15 AM
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350z/g35 injectors are affordable as well. And they flow more on the vq35 then the stock ones.
Old Jul 26, 2011 | 08:19 AM
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I have some stock 350z injectors for sale if your interested.
Old Jul 26, 2011 | 08:27 AM
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I was told you should not extend rev limiter unless you get stronger rod bolts so that you dont throw the rods. I would never do that without having that done. Some 350z injectors would makes sense as well. I heard it was even pointless to extend limiter without SSIM AND cams......so why do it if you don't have these things?
Old Jul 26, 2011 | 09:08 AM
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^^ rod bolts? never heard of that... i kno people that dont upgrade them and their fine... well when u extend the redline its obvious u need the ssim lol i kno u make power with ssim and extended redline...but their saying ull make power...but not all the power u shuld without different injecters
Old Jul 26, 2011 | 09:42 AM
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What is going on in here...
Old Jul 26, 2011 | 09:49 AM
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Thread title and description are a little vague in this thread.

regarding the first line in the post in the link: Stock Maxima injectors will not support 300whp... I stopped reading after that


essential1 = I agree.


in other news:
Re: extended rev limit +VQ35 and rod bolts, I'm not even going to begin, as this should be common knowledge on here at this point.


7100-7200 = Ok w/ stock, anything above that and ARP RB's seem like a good idea.

Last edited by NmexMAX; Jul 26, 2011 at 09:52 AM.
Old Jul 26, 2011 | 02:17 PM
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^^ ur probably thinking 300whp to the wheels ofa dyno... in this case no... they sed 280 to the wheels is most likely above 300whp at the crank...so ur actually maxing out the stock injecters
Old Jul 26, 2011 | 08:50 PM
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The injectors probably start to get a little warm at the high RPM's. I know at least one car (auto) That made close to 240WHP and was hitting around 75% injector pulse. Once you start getting above that it is time to think about upgrading a little to keep them cool, because yes you lose power when they are warm.
Old Jul 27, 2011 | 06:34 AM
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Originally Posted by maxima dude
^^ ur probably thinking 300whp to the wheels ofa dyno... in this case no... they sed 280 to the wheels is most likely above 300whp at the crank...so ur actually maxing out the stock injecters
wat

Originally Posted by Me
regarding the first line in the post in the link: Stock Maxima injectors will not support 300whp... I stopped reading after that
Thats what the thread says What are YOU saying?
Old Jul 27, 2011 | 07:22 AM
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If I was going to raise the rev limit to 7500rpm and do it RIGHT I would get:

SSIM
Cams
rod bolts
maybe even a spring job too (just to be safe)

That's if you want to do it safe.
Old Jul 27, 2011 | 08:00 AM
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Originally Posted by ranmas2004
If I was going to raise the rev limit to 7500rpm and do it RIGHT I would get:

SSIM
Cams
rod bolts
a spring+shim job too (just to be safe)
350z injectors
Minor head porting
A good tuning solution (EMU aint that great...)

That's if you want to do it safe.
Fixed.....
Old Jul 27, 2011 | 11:01 AM
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How many of us on here do shyt right? Srsly?
Old Jul 27, 2011 | 11:09 AM
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None, all of them are trying to participate in the game...

This is a game for ballers and only ballers can participate.
Old Jul 27, 2011 | 11:11 AM
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Originally Posted by aackshun
None, all of them are trying to participate in the game...

This is a game for ballers and only ballers can participate.
Ballerism vs stupidity = TS-Fspec + SAFCII

It was because at the time of my purchases (F-Spec+SAFCII), UTEC/EMU weren't very popular ...
Old Jul 27, 2011 | 11:19 AM
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Originally Posted by NmexMAX
Ballerism vs stupidity = TS-Fspec + SAFCII

It was because at the time of my purchases (F-Spec+SAFCII), UTEC/EMU weren't very popular ...
TSF is balling in my opinion. I know some people who would do very bad things to get their hands on one... Especially for an Auto.

I was getting at the guys who only use EMU, or just VAFC2.....
Old Jul 27, 2011 | 11:21 AM
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Originally Posted by aackshun
TSF is balling in my opinion. I know some people who would do very bad things to get their hands on one... Especially for an Auto.

I was getting at the guys who use EMU, or just VAFC2.....
Actually now that I think of it, in order to get what I've got, (aside from direct timing control) I would need at least an EB and a V-Manage (Z33 CVTC maps). huh, I guess I'm not as dumb as I sound or look ...
Old Jul 27, 2011 | 11:23 AM
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Originally Posted by NmexMAX
Actually now that I think of it, in order to get what I've got, (aside from direct timing control) I would need at least an EB and a V-Manage (Z33 CVTC maps). huh, I guess I'm not as dumb as I sound or look ...
And you'd STILL have a stock ECU, which is not grounds for participating

Only exception to having all of this is having the n*ts to tune by tape, sheer madness.

Last edited by aackshun; Jul 27, 2011 at 11:26 AM.
Old Jul 27, 2011 | 11:28 AM
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Originally Posted by aackshun
And you'd STILL have a stock ECU, which is not grounds for participating

Only exception to having all of this is having the n*ts to tune by tape, sheer madness.
That's what the SAFC or in the semi baller case the EMB is for.
Old Jul 27, 2011 | 11:47 AM
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Why waste the effort? I'd just tune by tape or leave my o2s unplugged
Old Jul 27, 2011 | 12:02 PM
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Originally Posted by aackshun
Why waste the effort? I'd just tune by tape or leave my o2s unplugged
The A33 MAF is a little different than the A32, is it still possible?
Old Aug 4, 2011 | 10:24 AM
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So that says mine are barely hitting 60% duty cycle.
Old Aug 4, 2011 | 11:03 AM
  #24  
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Originally Posted by McSteve


So that says mine are barely hitting 60% duty cycle.
You realize you have Z33 injectors, albeit @ a lower FP, and 2987cc vs 3498cc (VQ30 vs VQ35) also?

VQ30DE-K: 290cc @ 3.0 BAR (FBJC100)
VQ35DE: 315cc @ 3.5 BAR (FBJC101, FWD versions)

VQ35DE: 335cc @ 3.5 BAR (FBJC100, 350z etc.)
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