Come on I know someone can help Michael out.....

Black04SpecV wrote:

You can purchase a gauge from zeitronix which will work with the zt-2. If you get their MAP sensor as well, you can datalog boost levels too.

I have no clue if AEM A/F gauge will work with zeitronix, to my knowledge nobody tried it yet...

Are you still on stock fuel pump? How much boost are you running?

I know Zeitronix offers a gauge display and MAP sensor but I want to know if I can get away with NOT purchasing those items, as I already have a wideband gauge display and a boost sensor (currently in use by my GReddy Profec B)


Fuel pump is a Walbro 255, currently at ~12psi but will push up to ~14psi after the head gasket and block guard are installed.

Black04SpecV wrote:

mjeffries wrote:

Black04SpecV wrote:

You can purchase a gauge from zeitronix which will work with the zt-2. If you get their MAP sensor as well, you can datalog boost levels too.

I have no clue if AEM A/F gauge will work with zeitronix, to my knowledge nobody tried it yet...

Are you still on stock fuel pump? How much boost are you running?

I know Zeitronix offers a gauge display and MAP sensor but I want to know if I can get away with NOT purchasing those items, as I already have a wideband gauge display and a boost sensor (currently in use by my GReddy Profec B)


Fuel pump is a Walbro 255, currently at ~12psi but will push up to ~14psi after the head gasket and block guard are installed.

Can't help you there I have no experience with the zt-2 or profec-B.

Describe the fuel delivery issues? That can be anything from failing fuel pump, to clogged injectors, to failing fpr. I used to run 10psi on the stock fuel pump and fuel system without issues. The only thing upgraded in my fuel system were my 440cc injectors.

The fuel delivery issue:  Up until about a month ago the car ran like a champ.  Now if I go WOT I run lean.  Adding fuel through the AFC isn't going to fix the problem, only mask it.  I need to find time to get with my boy and check fuel pressure at the fuel rail, then troubleshoot from there.  I'll find the problem, just need to find the time.  My real question is would I benefit from an aftermarket FPR.

I'm not asking if an aftermarket FPR will fix my issue.  I stated in the original post that I will track down whatever the issue is and correct it.  My question about the FPR is; once my fuel system is back up to standard, what benefits can an aftermarket FPR provide and what modifications would be required to set it up.


Edit:  And for those who only read the last post and not the original post, I have the following questions:


Zeitronix ZT-2:  Can I use my AEM UEGO gauge display or do I have to purchase the Zeitronix gauge display?  Can I use my GReddy MAP sensor (also being used by my electronic boost controller) or do I need to purchase the Zeitronix MAP sensor?


My head will be off sometime soon for a head gasket and block guard install.  What else should I look into doing while the head is off?

Last edited by mjeffries (2008-09-19 17:43:12)

mjeffries wrote:

I don't want to turn this into a long post so I'll go straight for the highlights:

-I currently have an AEM UEGO wideband.  I want to datalog so I'm considering buying the Zeitronix ZT-2. 
1) The ZT-2 does not come with a gauge display so can I just continue to use my AEM display? 
2)  To log boost do I need to purchase the Zeitronix boost sensor or can I just use the sensor that my GReddy electronic boost controller is using?


-I am having fuel delivery problems at WOT.  Haven't had time to test fuel pressure at the fuel rail yet.  Of course I'm going to find the problem and correct it but while I'm screwing with the fuel system do you guys think it would be in my best interest to also upgrade the fuel pressure regulator?  I see a lot of people on this site are using the Aeromotive FPR.  Is it a direct replacement to the stock FPR?  If not, what kind of modification is required?


-I checked my compression the other day; saw 180psi, 175psi, 170psi, 175psi (from pass side to driver side).  I'm happy about that.  I already have an '07 head gasket and a block guard, just waiting to find the time to put them in. Is there anything else I should look into doing while I've got the head off of the car?


-I'm going to test my coilpacks soon..... as soon as I find out how and have the right equipment.  Never done that before.  Anyway, ASSUMING one (or more) of the coilpacks need to be replaced should I just go with OEM options or should I try to upgrade those as well? 


I just talked myself out of parting out the car, selling it and buying a 350Z.  With that in mind I really need to get this lil Sentra running right.  Any help would be appreciated.

Get a return line, and run it through the Aeromotive FPR.   It makes tuning these stupid things SOOOOOO much easier.

I'm sure nobody cares but I'll waste innanet space anyway;

Today I received a used Zeitronix ZT-2 I purchased off of eBay.  Also have a Zeitronix MAP sensor and EGT probe on the way as well as a vacuum distribution block.  I'm going to clean up my rats nest of vacuum hoses and begin datalogging via the ZT-2. 

An install of my 07 head gasket and block guard is soon to follow.  I'm also starting to study a few of the Megasquirt threads and trying to decide if it is right for me.

Someone tell me why the 07 HG is superior. Is it multi-layer or what?? I'm sure you know this man, but there's a good deal of work involved when removing the cylinder head. I had planned on upgrading to just head studs, block guard, and a mls headgasket, but after a good deal of thought I've just decided to wait until I have a set of forged rods and pistons and just do a full rebuild when I pull off the head.

Last edited by 05SpecVnBlack (2008-09-29 17:51:27)

you will need the fuel canister from the b15 SE for the return setup.

OMG!!  An update!!!  Holy schmoley!!!

Because I have very limited time right now to get hands-on with the car, this head gasket + block guard install is taking forever.  I started tearing things down two weeks ago and the head finally made it to a machine shop yesterday.  I started this project thinking that I could drive the beater truck (93 toyota pickup) while the car is down, like I usually do, but now the truck seems to be having serious problems and the pressure is on to get the car finished so I can free up time to fix the damn truck.  Crazy work schedule FTL.


Leverage, I has it.  Used a handle from my floor jack on the ratchet attached to the timing chain side.  Yes, that is a downpipe being used on the wrench holding the camshaft.  Improvise - Adapt and overcome.



My four very good friends; Suck, Squish, Bang and Blow.     - I also just noticed that three of the four are sexual.  Maybe that's just my perverted mind, idk.



Supertech block guard sitting in its new home. 


Let's hope I don't fuck up reassembling everything.

I had my engine sitting for six months without oil...

Flywheel bolts backed out and I was waiting for money to get it rebuilt...

When I was done rebuilding the engine, I just filled up with oil and went...

10k miles later no issues...

You might want to go through 3-4 oil changes as a pre-caution, but its unnecessary in my opinion...

Do it for peace of mind..Worth it IMO..But I do everything for peace of mind..LOL