Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.
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Old 09-21-2004, 05:06 AM
  #41  
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So Hal are you runing 355cc injectors ? Or did you just change the injector size on your standalone in order to fool the computer into runing leaner ? Why do you run a FMU with a stand alone ? What kinda stand alone are you runing ? Does it still have all the emissions controlls built in- like EVAP and missfire monitoring ? I'm currious as in IL they do readiness code testing and MIL testing, if the codes are not set or you have a check engine light then they fail ya.
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Old 09-21-2004, 05:45 AM
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Originally Posted by BlackBIRDVQ
So Hal are you runing 355cc injectors ? Or did you just change the injector size on your standalone in order to fool the computer into runing leaner ? Why do you run a FMU with a stand alone ? What kinda stand alone are you runing ? Does it still have all the emissions controlls built in- like EVAP and missfire monitoring ? I'm currious as in IL they do readiness code testing and MIL testing, if the codes are not set or you have a check engine light then they fail ya.
He is running e-manage because I was see him on e-manage yahoo group. He has been asking a lot of questions lately.
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Old 09-21-2004, 05:52 AM
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So your running an FMU and 555's? Are you still on a single fuel pump? If so watch the fuel pressue it may drop off when you start cranking up the boost
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Old 09-21-2004, 11:30 AM
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Originally Posted by MardiGrasMax
So your running an FMU and 555's? Are you still on a single fuel pump? If so watch the fuel pressue it may drop off when you start cranking up the boost
So would it be a good idea to get a secondary inline pump also when you wanna crank it up per say
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Old 09-21-2004, 12:53 PM
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Nope, dual in tank Walbro
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Old 09-21-2004, 01:11 PM
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Originally Posted by MardiGrasMax
Nope, dual in tank Walbro
Have you done this? I am afraid of the higher fuel pressure running my walbro out of fuel at a lower hp... and couldnt think any easy way to drop in another walbro, but hadn't given it too much thought. If i run into this problem, I'll probably just go fuel cell w/ my old paxton/aeromotive 1000+hp pump
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Old 09-21-2004, 01:11 PM
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Cool!

What scan tool can I use on a 89 Maxima? Who makes it and approximate cost?
So the Warbo pump (like the GN's Have) works?
Factory Fuel pressure regulator or aftermarket?

Awsome setup.!!!!
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Old 09-21-2004, 02:09 PM
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The GS34X pump can support upto 720cc/min if you crank up the voltage to 16V: http://www.stealth316.com/2-fuelpumpguide.htm


It can support 550cc/min, if you upgrade the wiring and your charging system can provide 13.5V or more depending on your fuel pressure needs.
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Old 09-21-2004, 02:13 PM
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Nissan Consult. Seen them for on ebay for oh.. a few thousand. Your maxima is OBDI. This is before the Gov't mandated universal diagnostics for all automakers (all 1996+ automobiles are obdII compliant and can use obdII scan tools)

Originally Posted by Boosted Maxima
What scan tool can I use on a 89 Maxima? Who makes it and approximate cost?
So the Warbo pump (like the GN's Have) works?
Factory Fuel pressure regulator or aftermarket?

Awsome setup.!!!!
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Old 09-21-2004, 02:16 PM
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I've only seen a Consult-I on eBay, have you seen a Consult-II?

Let me know if you do.

Originally Posted by Jeff92se
Nissan Consult. Seen them for on ebay for oh.. a few thousand. Your maxima is OBDI. This is before the Gov't mandated universal diagnostics for all automakers (all 1996+ automobiles are obdII compliant and can use obdII scan tools)
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Old 09-21-2004, 02:17 PM
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Why would you want one?? I mean they are cool but not $$$$ cool!
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Old 09-21-2004, 02:19 PM
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Yes, but depends on the cards included and if you can download updates from the Nissanusa website or not.
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Old 09-21-2004, 04:48 PM
  #53  
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I must have Hal mixed up with another Maxima.org member who is going to be or is runing a stand alone and gonna sell it for some .org memebers. Even with Emanage you should be able to ditch the FMU. I have a 240 with a KA runing 555s and TTZ MAF at 400WHP with no problem on stock ECU and Emanage- I just finished tuning it for my friend as no shops around this area know WTF they are doing with Nissans and cost him an engine.
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Old 09-21-2004, 04:57 PM
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400whp on a KA...damn.

Can you explain how you squeeze 400whp out of four 555s withOUT a FMU?

Even at 100% duty cycle and NA stringent 0.50 BSFC, that's not possible.
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Old 09-21-2004, 05:19 PM
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I run 4 bar of fuel pressure Nismo FPR with a Walbro in-tank, on Tomei 555cc injectors pulling air in via a Z32 TT MAF. You can get 300WHP from a set of 370ccs at 4 bar of fuel pressure. I do that daily with my G20 on a T25 turbo.
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Old 09-21-2004, 05:29 PM
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[email protected] --->640cc/min, which using again 100% DC and NA stringent 0.5 BSFC is good for 487bhp or 415whp assuming 15% drivetrain loss.

Alright, that's close, but damn close.
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Old 09-21-2004, 05:34 PM
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Okay I rounded off the 400WHP # its actually 387WHP, but its very close to 400WHP, and I'm sure if I where to get the turbo extrude honed it would hit 400WHP at that same boost I actually run 61psi on the KA and my SR. Works like a charm and the injectors have been happy for a long time now, no problems. Lets see 740cc injectors for 500 bux, or Nismo FPR for 90 bux... ehh I take the FPR
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Old 09-21-2004, 05:40 PM
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"400WHP" does sound better then "387HWP"....LOL.

Hmmn....61psi all the time and no leaks, fuel pump crap outs, etc....

Interesting...very interesting.
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Old 09-21-2004, 06:21 PM
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Originally Posted by hlh0501
Update for anyone who cares:

I found out my pressure switch for MEVI has failed, it is allowing some vacuum to creep by... so my MEVI is always open right now. I have to get a new one and throw it on - then it's off to the dyno (and/or maybe track) for baseline numbers
I am curious as to when you want your mevi open and when you want it closed. I went ahead and got rid of my VI. I finally got it to work using a check valve and vacuum canister, but dyno numbers show a drastic decrease in torque when VI is open as apposed to it being closed all the time.


Originally Posted by hlh0501
I did have something weird happen earlier, the car slowly started running more and more rich , even idling. It got to the point it was choking just sitting at a red light, AF dropped to 9:1 and eventually got to "TOO RICH" on the wideband.
It's interesting that you have had this problem. I have had this exact same problem, but was able to 'cure' it by shutting off the car for a few minutes. I thought it was my secondary fuel pump that was causing the problem. Since we don't have the same fuel setup, maybe its e-manage related...who knows.


Also, can I get a link to the e-manage forum spanishrice is referring to.
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Old 09-21-2004, 08:27 PM
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Originally Posted by pimpjuice
I am curious as to when you want your mevi open and when you want it closed.

Since we don't have the same fuel setup, maybe its e-manage related...who knows.

Also, can I get a link to the e-manage forum spanishrice is referring to.
http://autos.groups.yahoo.com/group/emanage/

I played with it tonight, and the difference between a 4000 and 5000rpm changeover made 4mph diff. in the 1/4. Best I've found is around 5200ish to allow vacuum to it allowing it to open.

I doubt its emanage related, bc even when I connected the MAF back to stock (no emanage) and left all tables at 0 it was loading up extremely bad. I think my FMU is gone.
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Old 09-21-2004, 10:24 PM
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Wideband log:
Made some changes tonight, and went a little too rich, but nonetheless
Steady 10.x af under boost
Cruises at ~13.5, and idles around 14.


Emanage log:
shows rpm in red, +MAP in black, retard in yellow, fuel in blue


MUST PUT SPRAY BACK ON!!!
1.3 second respool on shifts, ahhhh
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Old 09-21-2004, 11:10 PM
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Nice....

Are those two spikes to ~13.1 on your AFR when you first go to WOT?
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Old 09-22-2004, 02:42 AM
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[QUOTE=hlh0501]Wideband log:
Made some changes tonight, and went a little too rich, but nonetheless
Steady 10.x af under boost
Cruises at ~13.5, and idles around 14.


QUOTE]

Is this at wide open throttle, what are the spikes from. I don't like those 13:1 or higher spikes, make my car go boom.
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Old 09-22-2004, 06:12 AM
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Originally Posted by IceY2K1
Nice....

Are those two spikes to ~13.1 on your AFR when you first go to WOT?
I've seen the afr do that during shifting.
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Old 09-22-2004, 06:41 AM
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Originally Posted by Stephen Max
I've seen the afr do that during shifting.
would it do that in an automatic since the throttle plate does not close all the way?
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Old 09-22-2004, 06:50 AM
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Originally Posted by IceY2K1
Nice....

Are those two spikes to ~13.1 on your AFR when you first go to WOT?
those are when I lifted for the shift... then when I come back into it WOT, you see the 11.5 spike as it settles back into the 10s.

I guess I should have stated, the two flat lines are 3rd and 4th gear. and right before that, where it bounces from 12->10->12 is 2nd gear spinning like crazy as I tried to feather the gas.
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Old 09-22-2004, 08:54 AM
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I thought that at first, but figured it would go rich, since you have an open atomosphere BOV, ie metered air is released, so there is excess fuel.
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Old 09-22-2004, 10:06 AM
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Originally Posted by hlh0501
Wideband log:
Made some changes tonight, and went a little too rich, but nonetheless
Steady 10.x af under boost
I notice you say you went a little too rich. What AF are you trying to tune for?

I try for a steady 11.5
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Old 09-22-2004, 06:02 PM
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Ice, my MAF is after the BOV, so no metered air is released

I had it tuned to 11.8 (my goal) and tinkering plus a FP problem had me to 10.5 last night.
I think it is near 11.0 now
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Old 09-22-2004, 06:09 PM
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When will the turbo Y pipes be availible ??? I'm ready to do some nasty things to my new engine on the engine stand.
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Old 09-22-2004, 06:13 PM
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Originally Posted by hlh0501
Ice, my MAF is after the BOV, so no metered air is released
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Old 09-23-2004, 06:06 AM
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jez, once youre done with the "new" dek, do you want to tinker with your ae vi and my de?
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Old 09-23-2004, 06:44 PM
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slimer, I got home yesterday and the dude revoked my bid- as I was the only bidder. Looks like every auction he had up was a fluke. It showed alot of diff engines for sale n stuff but nothing went through. But I am getting another DE-K so I can do some tinkering to it internally before I put it in the car.
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Old 09-24-2004, 04:48 AM
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Originally Posted by BlackBIRDVQ
slimer, I got home yesterday and the dude revoked my bid- as I was the only bidder. Looks like every auction he had up was a fluke. It showed alot of diff engines for sale n stuff but nothing went through. But I am getting another DE-K so I can do some tinkering to it internally before I put it in the car.
aww thats bull****. Report him.
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