Special thanks to Matty for the quick replies to my many PMs, Ptatohed for the SCIFD, and also Mardigasmax, Stephenmax, Latinmax, and Maxima.org for having an inordinate amount of info on this board.

Mods List:

Mechanical:
- VQ35, VQ30 timing equipment, ARP rod bolts, no CVVT,
- Polished V2 Vortech S/C on Matty’s V1 Plate
- Bar/Plate IC (29*12*3), 3” IN/OUT
- Custom ported/polished Z33 intake, MD Spacer w/ thermal gaskets
- Custom all 3” aluminium piping
- Custom 3.5” CAI with KN filter
- 2.62” SC Pulley
- Blitz BOV
- NGK Iridium, 1 step colder, gapped to .036”
- Fidanza Flywheel and ACT clutch
- 2001 AE 5-speed VLSD
- Raxle Axles

Fuel:
- Return system on returnless rail
- Injectors RC Engr. 440 CC (@ 43 psi)
- Walbro 255 lph in-tank pump
- Aeromotive Universal AFPR (1:1 rising rate)
- Vortech FMU (4:1)

Exhaust:
- Custom 2.5” True dual
- Custom/severely modified Hotshot headers
- Flowmaster 3” Header Ball Flange, 3” collector , 2.5” pipe
- 2.5” Magnaflow X-pipe
- 2.5” Magnaflow Resonators

Electrical:
- J&S Safeguard w/ knock monitor
- Apexi SAFC
- Innovate XD-16 Wideband
- Z32 MAF
- Stock VQ30 ECU


Finally, I can say that I have way to much power for this chassis. I’ve put about 200 miles so far without any problems. The car runs pretty strong until fuel starvation becomes an issue. Even with a 4:1 FMU disk on my 440s (@ 65 psi), I am still hitting high 13 AF ratios as I approach redline. I don’t know how much boost I am making at redline since I am letting off to avoid leaning out, but I did see 12 psi at about 6,000 rpm. Haven’t decided what route to take to fix my AF issue, but either or a 6 :1 disk for my current FMU, a SFMU/Cartech, or a Kenne-Bell boost-a-pump ought to do the trick.

Needless to say, traction is an issue. Even with my heavy 17” Z33 wheels, both tires will violently spin at anything over 3500 in 2nd and they skip around all through 3rd gear…fun and scary all at once. Also to note, J&S did not detect knock at all in any of my tuning runs (outside temp was about 50F) . I suspect that NO timing pull will required considering the conservative stock VQ30 ECU timing for a VQ35 and that large IC. As an alternative, I can remove the IC and replace it with a 3” tube to attain an extra pound or two of boost, and lot more traction problems.


Anyway, here are a couple of pics:


ENGINE BAY








2.62 vs. 3.125

 

Excuse the e-tape on that beat bumper, it was an old one that I am using as a template for IC fitting….



SC to IC



IC to BOV


STOCK VQ35 injectors and RC 440s

 

Plenty of free flow, and yes, it is way to loud for my taste


Custom 3” collector and 2.5” exhaust pipe from front bank…


X-pipe and Wideband O2 bung


Okay, I tried to do a panorama of my exhaust….

 

That is one sick car bro. Have you had it dynoed yet?

 

Wow, nice car. I wish I could S/C my 5.5gen. I hope to see your car around houston.

 

Need some numbers

 

HOLY S*&#$. Get that ho to the track! I am curious (and not trying to be a smart *** because this is some of the most innovative stuff), but isn't the 2 90 degree bends in the exhaust somewhat restrictive. I can imagine it would be better this way versus single exhaust, but seems like it could be improved more. I can guess the answer is simply that it won't fit any other way. Correct me if I am wrong.

The day you decide to upgrade to the A33B ECU ... OMG ... I can't imagine what cVTC would do for this car. Heh ... some NISMO cams in here and you have to be running low 12's or break into the 11's.

PLEASE PLEASE get some video on this car.

 

Great job. Doesn't this make you the first VQ35 with a SC?? Looking forward to seeing your final numbers once you're completely tuned and hitting full boost.

 

vvvrrrrooommm ppppsssssssshhhhhhhhhh.

 

Very nice man. Thats a great thing your using my V1 plate kit

That car must be a monster !!!

Every think on emanage along with your J&S ??

-matt

 

**************SPEECHLESS**************Very nice!!!

 

First I have heard of with a true dual exhaust as well.


Major props, one sick setup!!!!

 

Excellent job man. Now hit the dyno.

 

Do you know what the duty cyle the injectors are running at?

 

holy sh[i]t that is a really nice setup..

 

Dyno dyno dyno!!

And hit the track also!

 

!!!!!!!!!!!!!!God Damn!!!!!!!!!!!!!! Better change those injectors, that baby is going to need more fuel.

 

About dynoing….I will dyno once I am completely tuned, hopefully within the next 2 or 3 weeks.

I haven’t been data logging (except A/F), so I don’t know injector duty cycle or the voltage my MAF is seeing, but I suspect that both of these are seeing their limits.

My J&S is currently not detecting any knocking, not even when I leaned out on the high end. I’ll see if the situation changes when I swap out the IC for a straight pipe.

I currently don’t experience any starting or part-throttle issues with these injectors. I will hold off on e-manage unless I absolutely need it for tuning. Based on my current setup, there isn’t much emanage can do if the injectors and MAF are maxed out.


As a rule of thumb 440s are good for 440whp….only the dyno will tell if I am really making that much power. During my street tuning, at 6,000 rpm I was pushing a bit over 65psi of fuel, with my SAFC at +50% and my A/F was still 13.9:1. I am hoping that 80 psi will do the trick, although Walbro’s fuel pump curve does not work to my advantage at such high pressure.

 

Hats off for doing all this yourself. I'm sure it makes good power. Not the prettiest engine bay but...still hats off.

 

sick setup.......

 

Time to roll some fenders, grab some spacers, and start trying to figure out how to cram serious rubber in there...

What are you doing for motor mounts and subframe bushings, and to stabilize the front LCAs? ES bushings, traction bars, Stage 2 LTB...? The stock stuff can't even prevent wheel hop on a bone stock 3.0 with a busted knock sensor. I can't imagine what it must be doing with your setup...

 

Major props! That is one mean beast!

 

Do you think he could fit the LTB's with his exhaust setup?

 

Hats off to you
I too want to see dyno for this beast.

 

Holy Sh*T Congrats and hats off to you. You are indeed the 1st 3.5 s/c 4th gen to my knowledge. I like the custom exhuast. All you need now is the EU and a used quaife to bring it to its full potential. The setup is sick., and original

 

Truly impressive. I can't wait to see some times and dynos for this thing. Good luck with all your plans for it as well!

 

WTF.
That's all I gotta say.
Incredibly incredibly incredibly good work!!!!!!!!
"THAT'S FANTASTIC!"

 

cant wait to see dyno also if everything works out good for you im next for 3.5 sc i got a 3.0 sc 6 speed with the 2.62

 

I am pretty sure 440's are good for around 440 hp, not whp. Those injectors definately look too small.

 

Oh Snap!! Get to the track and break all the records quick.

 

does the z mani hit the hood at all?

 

I have custom motor mounts, basically completed gutted stock mounts filled with SH 90 urethane. They do induces quite a bit of vibration.

I have JClaw traction bars sitting at home, but I haven’t installed them b/c I don’t really experience wheel hop. I guess a combination of my 1/2" dropped power train, strut bar, and VLSD 5-speed all work to prevent wheel hop. On the road, the car literally slides a couple of feet side to side when I go WOT in 2nd. ES will be coming shortly nonetheless

It does not without the spacer, but note that my CF hood doesn't have underhood bracing. I wanted the Motordyne spacer, so I dropped my whole powertrain by a bit over 1/2" to solve that problem.


I am starting to believe that I choose to small of injectors too. I’ve seen a couple of 350z push up to 470whp with 440s. I’ll try to work with what I’ve got before I spend an extra $500 for 550s. I would just really really hate starting problems, poor idle, and/or part-throttle response.

 

Talk about a sleeper. Thats a shat load of mods all hidden under that basically stock exterior. You need to make some video clips of that, BIG TIME!
Props to you and putting it all together.

 

HUGE sleeper. The only thing you need is traction.



Read: street legal - they make good spare tires

A quaife+installing the traction bars would only help further.

 

My friend and I are thinking of picking those up if we go 3.5 with headers, cams and 125-175 shot of juice.

 

That is insane! Congrats and lets see some numbers

 

are you gonna boost and squeeze?

 

Man that is a sick setup. Definitely a pioneer. Have you thought about using a oil cooler?

 

Oh what hood is that?

 

UNreal. Love your exhaust.