Nissan 370Z Forum

Nissan 370Z Forum (http://www.the370z.com/)
-   Engine & Drivetrain (http://www.the370z.com/engine-drivetrain/)
-   -   VVEL Cracking? (http://www.the370z.com/engine-drivetrain/33885-vvel-cracking.html)

GZ3 03-30-2011 01:24 PM

ben and jerries...much more gratifing experience

m4a1mustang 03-30-2011 01:26 PM

Quote:

Originally Posted by GZ3 (Post 1021093)
so is it stock right?

Yeah.

G37sHKS 03-30-2011 01:30 PM

Quote:

Originally Posted by m4a1mustang (Post 1021347)
Yeah. For now

fixed.

haggomyeggo 03-30-2011 01:31 PM

Quote:

Originally Posted by red6spd (Post 1020148)
I predict that once VVEL is cracked all the guys who traded there Z's for 5.0 Stangs will trade back. :stirthepot: LOL

Quote:

Originally Posted by m4a1mustang (Post 1020595)
:roflpuke2:

Quote:

Originally Posted by b1adesofcha0s (Post 1020832)
^^^I bet he drives another 1000 miles to get his Z back ;)

to all of this NO steve you cannot have your car back:stirthepot:

you can look but no touchie:tiphat: unless its me:yum:

m4a1mustang 03-30-2011 01:32 PM

Quote:

Originally Posted by haggomyeggo (Post 1021365)
to all of this NO steve you cannot have your car back:stirthepot:

you can look but no touchie:tiphat: unless its me:yum:

I'll touch you alright. :happydance:

wheee! 03-30-2011 01:39 PM

Just when I think its safe to poke my head out from under the deck.... :wtf2:

GZ3 03-30-2011 01:40 PM

everyone needs to relax...VVEL tunning should yield 50-75rwhp

m4a1mustang 03-30-2011 01:41 PM

Quote:

Originally Posted by GZ3 (Post 1021408)
everyone needs to relax...VVEL tunning should yield 50-75rwhp

:icon18:

haggomyeggo 03-30-2011 01:41 PM

Quote:

Originally Posted by m4a1mustang (Post 1021369)
I'll touch you alright. :happydance:

i be the one spread NISMO for you:roflpuke2:

so back to the VVEL cracking discussion.......:wtf2:

m4a1mustang 03-30-2011 01:42 PM

Quote:

Originally Posted by haggomyeggo (Post 1021414)
i be the one spread NISMO for you:roflpuke2:

so back to the VVEL cracking discussion.......:wtf2:

I'm going to crack your VVEL... :icon14:

haggomyeggo 03-30-2011 01:47 PM

Quote:

Originally Posted by m4a1mustang (Post 1021416)
I'm going to crack your VVEL... :icon14:

does that mean that i will then have and extra 50-75rwhp:eek:

GZ3 03-30-2011 01:48 PM

Quote:

Originally Posted by m4a1mustang (Post 1021416)
I'm going to crack your VVEL... :icon14:

:confused:

that ....sounds....gross?!

GZ3 03-30-2011 01:49 PM

Quote:

Originally Posted by haggomyeggo (Post 1021425)
does that mean that i will then have and extra 50-75rwhp:eek:

only if your crack isnt so tight

wheee! 03-30-2011 02:01 PM

Quote:

Nissan Variable Valve Event and Lift (commonly abbreviated as "VVEL") is an automobile variable valve timing technology developed by Nissan.
Nissan VVEL was first introduced to the US market in late-2007 on the 2008 Infiniti G37 Coupe sporting the new "VVEL" VQ37VHR Nissan VQ Engine (VQ37VHR motor specs: 11.0:1 CR, 95.5mm bore, 86mm stroke, 7500rpm redline). VVEL variable valve timing is now also used in the smaller VQ25VHR engine seen in the Infiniti G25 and the VK50VE V8 engine from the Infiniti FX50.
A rocker arm and two types of links open the intake-valves by transferring the rotational movement of a drive shaft with an eccentric cam to the output cam. The movement of the output cam is varied by rotating the control shaft with a DC stepper motor and changing the fulcrums of the links. This makes the continuous adjustment of the amount of the valve's lift (e.g., the amount of intake opening), during the intake valve event in the four-stroke cycle, possible. C-VTC and VVEL together control the valve phases and its valve events, allowing free-control of the valve timing and lift. This results in more efficient airflow to the cylinder, significantly improved responsiveness, optimizing the balance between power and environmental performance.
It performs similarly to BMW's Valvetronic system but with desmodromic control of the output cam, allowing VVEL to operate at higher engine speeds (RPM). Other similar systems are offered Toyota (Valvematic).
http://www.nissan-global.com/EN/NEWS...0329-01-01.jpg

I thought we needed this to clear the images of 'crack' from our minds...

red6spd 03-30-2011 02:08 PM

Quote:

Originally Posted by wheee! (Post 1021450)
I thought we needed this to clear the images of 'crack' from our minds...


Right there, on the top left, do you see it? Thats the thing there gonna crack.

b1adesofcha0s 03-30-2011 02:11 PM

Quote:

Originally Posted by GZ3 (Post 1021276)
you gotta do gears man! the funnest most rewarding MOD hands down

300rwhp just isnt enough anymore

DD Z + 70-80% highway commute = no gears mod for me. I plan on using it as my DD for as long as I have it. Also, I probably won't get the torque converter either. I have no interest in drag specific mods. I would rather get mods that would allow me to get on a road track (oil cooler, brakes, etc.)

theDreamer 03-30-2011 02:11 PM

Quote:

Originally Posted by wheee! (Post 1021450)
I thought we needed this to clear the images of 'crack' from our minds...

The term 'crack' is being used because in software you hack/crack something to do with it what you want. To control VVEL we will be hacking/cracking the software for user control.

wheee! 03-30-2011 02:13 PM

It was more Steve's "cracking" haggomyeggo that I wanted to shed....

christian370z 03-30-2011 02:15 PM

If VVEL was tuned to balance performance with environmental concerns, that means it is a compromise. And when there are compromises, gains are left on the table.

m4a1mustang 03-30-2011 02:15 PM

Either way, everyone seems to think this VVEL "crack" is going to be simple and is going to yield unbeleivable results.

theDreamer 03-30-2011 02:16 PM

Quote:

Originally Posted by m4a1mustang (Post 1021483)
Either way, everyone seems to think this VVEL "crack" is going to be simple and is going to yield unbeleivable results.

Well cracking you was easy and yield unbelievable results....:wtf2:

christian370z 03-30-2011 02:19 PM

Agreed, plus the pricing is still yet to be announced. I just hope it isn't so expensive that it becomes inaccessible to many people.

m4a1mustang 03-30-2011 02:29 PM

Quote:

Originally Posted by christian370z (Post 1021493)
Agreed, plus the pricing is still yet to be announced. I just hope it isn't so expensive that it becomes inaccessible to many people.

IF it even happens, it probably will be.

SPOHN 03-30-2011 02:48 PM

Yea it really won't be worth it now. Be happy with a NA tune. If not go FI.

Jeffblue 03-30-2011 02:57 PM

Quote:

Originally Posted by m4a1mustang (Post 1021518)
IF it even happens, it probably will be.

it will be really cool for like 3 days, then like with any car/mod you will get used to the power and get bored and start looking for the next way to get more power out of the engine. But by that time you'll have full bolt ons a tune, and no vvel, there won't be anything left except weight reduction. VVEL won't make your car like 'scare the sh!t out of you' fast

Jordo! 03-30-2011 03:09 PM

Valve timing and lift make a huge difference. It won't rival FI, but it will make a big difference in NA performance potentially.

I'll put it this way: Imagine there was a "race cam" for our car. Everyone would be jumping at the chance to open the motor and put in the new cam.

Well with VVEL tuning, you can just dial it in electronically.

RCZ 03-30-2011 03:17 PM

All this talk of touching has me wanting to go test drive the mustang.

Red__Zed 03-30-2011 03:20 PM

Quote:

Originally Posted by Jeffblue (Post 1021617)
it will be really cool for like 3 days, then like with any car/mod you will get used to the power and get bored and start looking for the next way to get more power out of the engine. But by that time you'll have full bolt ons a tune, and no vvel, there won't be anything left except weight reduction. VVEL won't make your car like 'scare the sh!t out of you' fast

Nothing short of FI will do that, but some extra peak power would be more than welcome. I think that some adjustment to VVEL will also open up a good bit under the curve, which is where the Z could use some extra juice. I think a little more freedom with tuning could drop lap times in the Z by a noticeable amount.

haggomyeggo 03-30-2011 03:23 PM

Quote:

Originally Posted by RCZ (Post 1021692)
All this talk of touching has me wanting to go test drive the mustang.


:shakes head::shakes head:

m4a1mustang 03-30-2011 03:25 PM

Quote:

Originally Posted by RCZ (Post 1021692)
All this talk of touching has me wanting to go test drive the mustang.

The car or the driver... because I can help you out with both. ;)


:bowrofl: :bowrofl:

Red__Zed 03-30-2011 03:25 PM

Quote:

Originally Posted by m4a1mustang (Post 1021717)
The car or the driver... because I can help you out with both. ;)


:bowrofl: :bowrofl:

:wtf2:

m4a1mustang 03-30-2011 03:26 PM

Quote:

Originally Posted by Red__Zed (Post 1021719)
:wtf2:

You're supposed to laugh. :mad:

haggomyeggo 03-30-2011 03:26 PM

Quote:

Originally Posted by m4a1mustang (Post 1021717)
The car or the driver... because I can help you out with both. ;)


:bowrofl: :bowrofl:

only if you wear that shirt in your avatar:happydance:

m4a1mustang 03-30-2011 03:28 PM

Quote:

Originally Posted by Red__Zed (Post 1021703)
Nothing short of FI will do that, but some extra peak power would be more than welcome. I think that some adjustment to VVEL will also open up a good bit under the curve, which is where the Z could use some extra juice. I think a little more freedom with tuning could drop lap times in the Z by a noticeable amount.

I think mid-range would benefit the most. An extra 10-15 whp at mid-range would go a long way for improving the driveability of the N/A cars.

But you're right... the 3.7 is very limited unless you go FI. In the end it's the cheapest and most effective way to get meaningful power out of the car.

Red__Zed 03-30-2011 03:30 PM

Quote:

Originally Posted by m4a1mustang (Post 1021720)
You're supposed to laugh. :mad:

You're making me jealous with that discussion:rofl2:

Quote:

Originally Posted by m4a1mustang (Post 1021728)
I think mid-range would benefit the most. An extra 10-15 whp at mid-range would go a long way for improving the driveability of the N/A cars.

But you're right... the 3.7 is very limited unless you go FI. In the end it's the cheapest and most effective way to get meaningful power out of the car.

I think the engine is pretty limited even with FI, but that's a discussion for another day. :stirthepot:

Another 20 or so horses through the midrange would be fantastic for the trackability of the Z, especially if the powerband was smooth-- which it should be if they get all the tuning figured out.

m4a1mustang 03-30-2011 03:31 PM

Quote:

Originally Posted by Red__Zed (Post 1021736)
You're making me jealous with that discussion:rofl2:



I think the engine is pretty limited even with FI, but that's a discussion for another day. :stirthepot:

Another 20 or so horses through the midrange would be fantastic for the trackability of the Z, especially if the powerband was smooth-- which it should be if they get all the tuning figured out.

I definitely agree, but it is what it is. At least FI will put you in the 450whp range which is kind of the "sweet spot" for a street-driven 3100-3300lb car.

haggomyeggo 03-30-2011 03:34 PM

Quote:

Originally Posted by m4a1mustang (Post 1021728)
I think mid-range would benefit the most. An extra 10-15 whp at mid-range would go a long way for improving the driveability of the N/A cars.

But you're right... the 3.7 is very limited unless you go FI. In the end it's the cheapest and most effective way to get meaningful power out of the car.


i want to feel the difference in the car with a few mods but yeah if you could get some power to come in between 2500-4500 rpm, the car would feel a lot quicker

Red__Zed 03-30-2011 03:34 PM

Quote:

Originally Posted by m4a1mustang (Post 1021739)
I definitely agree, but it is what it is. At least FI will put you in the 450whp range which is kind of the "sweet spot" for a street-driven 3100-3300lb car.

Yeah, for sure. Especially if you're looking to run tighter road courses, the Z doesn't even really need much more than 300whp. I think I'd be happy with a legit 300whp with a smooth powerband.

haggomyeggo 03-30-2011 03:36 PM

Quote:

Originally Posted by m4a1mustang (Post 1021739)
I definitely agree, but it is what it is. At least FI will put you in the 450whp range which is kind of the "sweet spot" for a street-driven 3100-3300lb car.

im really looking forward to seeing Dixon Cider's car whenever he gets it back from GTM. a roadster with that kind of power should be pretty awesome.

m4a1mustang 03-30-2011 03:36 PM

Quote:

Originally Posted by Red__Zed (Post 1021747)
Yeah, for sure. Especially if you're looking to run tighter road courses, the Z doesn't even really need much more than 300whp. I think I'd be happy with a legit 300whp with a smooth powerband.

Agreed.


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