can someone direct me in the right path.
 

whats up everyone, well ive wanted to build my car for a while now but just been putting it off over and over...sooo the other day i got to really thinking about it and just my like i stumbled across a motor i picked up for a sweet deal ;). with that said im gonna start building up an allmotor build, but in the little research ive started i cant find much for the heads other than valvetrain. So my question is who makes an availability for internals on the vq37?

http://i239.photobucket.com/albums/f...s/IMG_0423.jpg

roh rooooh

Subscribed.

until someone cracks the vvel system, internals will probably be limited. its only a matter of time though.

in for responses.

I'm almost 50, and I remember the days of Edelbrock manifolds, and Holley carbs, and hooker headers, and hurst shifters, and....
Sorry, I'm dating myself.
It' amazing to me how many options there aren't for these engines.
Or I'm missing something and I'd love to hear it....

technosquare has an ecu in japan for a 370z from my buddys car. Hopefully they will be able to brake the vvel and


good luck on the build:tup:

:iagree:

Yeah. It's called over regulation. Seems that all governments from local to federal want to tell you what you can't do to your car.

The muffiler is too loud = law
the radio is too loud = law
only kids like neon lights = law
that car is too low = law
it has clear tail lights = law

blah...

im trying to find cam shafts...im planning stock rods, 13:1 comp, ported heads,e85 and supporting bolt ons with an aem...im gonna look into pistons this week to get the ball rolling.

Doesn't GTM offer a build kit for the VQ37?

GTM Motorsports
Search for engine internals for our cars and you'll find all kinds of stroker kits, valve trains, pistons, etc etc.

all they offer are stroker kits,pistons and valvetrains...im trying to find cams right now. everything else i found i just have interest in the cams.

the vvel doesnt use cams, per se: Variable Valve Event and Lift - Wikipedia, the free encyclopedia

Yeah, VVEL already acts as a pretty aggressive intake cam to begin with. Maybe physically adjusting the VVEL screws might finally yield some modification in the maximum/minimum lift the mechanism allows?

the exhaust cams look very similar to HR cams and i'd wager the Hr ones could fit or you could take our cams and send them to a company that makes HR cams and have them custom make you new ones, but the point of this all is pretty mute if you can't touch the vvel. I'm working on vvel tunning but the only way i have for it to work isn't very pretty or wallet friendly. you could bring our car to a motec dealer and drop 10-12 grand in an ecu and never have worries again as far as that goes. best bet for now on an NA build would be higher compression stroker, with a great portjob, and a tuned set of a tube type intake manifold/s and a set of headers to match it. All in all if you wan't NA power out of that motor prepare to spend more moeny than it took to buy the car.

Gotcha.... I appreciate the feedback some dumb some not so much lol. But you guys have definitely answered my question. Lol the answer is I can find cams cause there isn't any.. Lol so I'll get the bottom end and some port work going and let's see what kinda gains this thing has :)

I LOVE turbo cars and have never built an allmotor car but my judgement tells me that this is where the 370 should be :)

I am sure with some porting and maybe looking at modifying the lower intake section, you can see some nice sized gains there. You can always get a custom grind on the stock exhaust camshaft but until you can dial in VVEL to match changes in lift on the exhaust side, I am not sure how much that will hinder you.

Forgive my limited knowledge when it comes to these engines, but is the cam angle variable? From what I read about the VVEL, it seems to only affect the valve lift... not acutally cam actuation.

Would these engines benefit from an adjustable cam gear, or is computer controlled much like the Honda K series i-VTEC engine?

To my knowledge it's a bit more advanced than vtec... Your vtec advances the timing on the engine where vvel pulls ur valves open further which I'm assuming isn't so much the lift of the cam but the technology simply opening them up further. but I don't know much about it either. I'm waiting on my chick to watch her retarded shows so I can go pick a friend of mines head who went to school on these things.

i-Vtec controls the lift, different lift at different RPM. same as the VVEL on the 370Z difference being that you guys have a stepper motor to control the Lift AND duration. vs Honda having a Solenoid. the VQ engines have adjustable Cam Phasing in borth Intake and Exhaust. which is basically an adjustable cam gear. once the VVEL is cracked. if it can be tunned for better power and efficiency it will rock so hard i will most likely trade in my Z33 to a Z34

thats my understanding atleast.

^^ agreed it will be very costly... i bet it would sound sick!

the exhaust cam phasing on the vq37 is not variable. The intake cam phasing is variable around +- 40 degrees. The valve lift and duration are increased and decreased by a single motor on the back of each head (it is a servo motor with magnetic feedback not a stepper). They are both increased together as a lever that looks like half a cam lobes swings up and down pushing the valve open, the further the lever swings (controlled by the motor on the back of the head) the farther the valve opens and the more time it takes to swing that lever farther means duration goes up as lift goes up.

Edit: also vtec cannot continuously vary the lift like vvel, with vtec you have high lift and low lift anywhere above a certain rpm you are using the high lift cam lobe anywhere below that rpm you are using the low lift cam lobe. vvel allows the computer to adjust te lift for the perfect balance of power and torque at any rpm.

^^ Excellent explanation! :tup:

what about the cam over lap? isnt that what the cam phase sensors on the front of the engine are for?

cam phase = overlap control
vvel = lift and duration control

vtech = lift control
i-vtec = lift and overlap

atleast thats what the rsx guys are saying on their i-vtec

the inake valves have veriable timing so if you retard the intake timing you decrease overlap

I should be getting good at it this is like the umpteenth thread to eventually need that explanation. I not explaning how it makes zero vacuum and throttles the engine though if they want to know that search for the vvel thread.

ive been reading on it...this motor is super cool....they say not to mess with the adjustment in the cams yet as far as the vvel...but at the same time...someone has too right. :)

pistons are on order..should take a few weeks they said.

Port the heads and install oversize valves to help breath with the higher compression.