Don't forget to get an engine oil cooler

 

I would be careful that is pretty lean if it is done on pump gas

Also do you have a graph with SAE instead of the STD correction? STD usually has higher numbers then a SAE corrected chart.

 

I was searching for something in the forum, and passed by ur post.

Sam is a nice guy good luck on ur project, and thanks for shearing it with us here in the forum

 

Yeah, I cant wait. Hopefully next Saturday. Aug. 23. That would be a 3 week turnaround!

 

Just a quick update on my project car:

Bad News first:

* We had a heck of time getting the correct engine bearings from Nissan. That was at least 1.5 week delay.

* The car failed to start! The JWT flywheel, which turns out to be a multi-car flywheel, should have two roll pin holes which line up to the crankshaft of the z32 and z33 respectively. For some reason my flywheel only had one which turned out to be incorrect. Off came the tranny and upon closer inspection of the flywheel the other hole was epoxyed over! We used a stock clutch and flywheel until my Exedy arrives.


Good news:


* After the flywheel issues were sorted out the car started right up! Good idle considering that this was just a base map loaded onto the FCON.

* The upgraded wastegate actuators look pretty! Nice and shiny as they were polished. BTW, they work well too.

* Our APS plenum did not look all that bad.

* IMHO, the APS exhaust sounds great!

* About 250 miles on the car with base map, got boost to about 13lbs which the stock clutch is no match for the power the car is already making. Good news indeed!



Things added to the project:

* 2005 Track Model (300hp) intake runners

* Exedy Carbon Clutch/Flywheel

* A LARGE Greddy oil cooler(300zx or Supra, forgot which) was installed.


To Do List:

* Trying to find a place for the oil catch can.

* My Clearcorner.com rears lamps should be done fairly soon.

* Change my sig.

Finally here are some terrible pictures that I took with my cell phone:

 

Another updated on my project car.

I have a definitive answer on what the APS TT kit fuel system can sustain. We maxed out the injectors at ~12psi. At 8.5:1 compression and 12psi we are pushing around 480whp. This is a decent number but there is yet some work to be done.

It looks like it is time for a new fuel system! We are spec'ing out a complete fuel system solution for 550+whp. In the mean time, I should have my car back in my hands this weekend for a two week break in period.

What are the other high horsepower Z's using as a fuel system? I know 1000cc injectors seem to be a must. FCON should have no problem controlling idle with these. Upgraded fuel rails and fuel return. What about the fuel pump? Is a Walbro 255 enough or do you need a secondary fuel pump?

 

It looks as if the Walbro 255 is good up to 650whp. As far as drop in injectors go there are a few options: RC 550's(good to 550+whp) 650's(up to 650whp) and I am the guinea pig using the mototron(siemens deka) 60lb(good up to about the same as the RC 650's). I was maxing out the RC 440's at 9psi with ported head and cams on a built motor(which rated at 3 bar are about the same as the injectors in the APS kit which are rated at 3.5 bar).

 

jdx if you aren't using the unichip, all you will need are larger injectors. I believe the aps tt comes w/ the 255lph walbro and a quasi-return system. If money isn't a concern (which doesn't seem to be), then get phunk's big fuel system w/ rails and return line. You will still need bigger injectors, if 550 is your goal, i'd get 650's to keep them within their duty cycle.

 

Don't get me wrong, money is a concern but I am not going to cut corners


So the fuel pump with the APS TT kit should handle up to 650whp?


Things to do for fuel system:

* Upgrade fuel injectors to RC 650cc/min
* Upgrade fuel rail
* Upgrade fuel return

Did I get it all?

 

Yep, indeed if the pump is the 255lph walbro then you shoudl be good to go... sharif will hopefully chime in and affirm.

 

okay let me get this straight....if I want to go higher than 12psi on the APS kit, all I have to do is get bigger injectors? The rest of the fuel system would be okay at say, 550+whp? OR, to be safe I should just get a complete new fuel return system like phunk's or aam's?

 

I think to be safe your should run a new fuel return system. The reason I listed seperate components of the fuel system is because the tuner (GT Motorsports) will be building a custom one for my application.

 

Eh, that's what I figured, damn. Oh well, I'd hate to spend all of this and cheap out at the fuel part. I know that the fuel system is obviously one of the least important parts of a turbo and everything lol.....

 

+1 I have the AAM but I think the CJM is better, on paper that is. My fuel system was a headache but I got one of the first ones where the elbow on the return line in the bucket wasn't drilled out. Go with Phunk's system and you won't be sorry.

 

+2 on CJM fuel system. I am very happy with mine. I believe he also has one with 1000cc injectors. PM him to find out.

 

At very high boost levels, the fuel pressure regulator should be placed at the end of the rail...AFTER the injectors have sucked down their fuel requirements. The APS and many factory applications use a tank located FPR and return, but this is done for safety, cost reduction, and other factors that arent very relevant to this discussion.

Upgraded lines, fuel rail, a full return fuel system, with the FPR and return line starting from the engine bay, in a post-fuel-rail location is the proper setup. And of course the upgraded injectors you spoke of. Hope that helps.

 

You know what...I never noticed that! I was wondering why these numbers were MUCH higher than typical for 6-7psi...I believe. Standard correction does result in materially higher numbers than SAE correction.

But nonetheless...great numbers....but I agree...I little too lean for my preference, especially if running carppy 91 octane CA fuel.

 

Finally got the car home tonight. We still have some issue with idle fluctation when the AC is on.

The new fuel system is in the works and should be done in a few weeks.

Here is the dyno plot:




BTW, the difference is night and day between the my previous mod and this. The car pulls and pulls and pulls to redline. An unbelievable feeling of torque as the turbos kick in.

A definite thumbs up and a recommended mod for you serious power junkies.

 

Here are some exterior and interior pics. More engine bay and underneath pictures when I can get the car onto a lift.

Exterior pics...











Interior Pics...

 

nice, very very nice interior in addition to the awesome numbers

keep up the good work friend, car looks great.