Ganoid

I would say billets as my luck with regrinds in a 3vz is not very good.




I have been out of the loop for a while playing with my 02 Maxima and neglecting my Truck. I personally think Toyota needs to take a good long look at Nissan's VQ35.

suprathepeg

That would likely have a lot to do with where you got them, lol.

Ganoid

Thats true but a smaller base circle with an equivelant lift means a steeper ramp both up and down. A Steeper ramp means you need a stiffer spring to keep the valve from bouncing when its dropped shut. I speak from expirence when I say heavy valves + reground cams + stock springs = a pile of hammered valve seats in a short time. Im all for keeping the base circle as large as possible.

suprathepeg

Hmmm... Very interesting. What do you think Johnny?

Weasy2k

I think that is the cam grinders job to correct.
That is the difference between them all, my cam grinder discussed this with me already and says the way he designs his grind prevents this from happening.

He has been in the buisness for 30 years has designed regrinds for race engines that go in boats, cars & bikes.

You just gotta find the right person
The 3vz-fe cam that i wll be testing will have a fairly large increase in lift for what it is and some nice duration increase (ill release specs soon) all with removing .024" from the base circle which is an amazing feat

phorensic

Agreed, that is one helluva engine.

Weasy2k

Its called 2GR-FSE

compairing 3vz-e and teh VQ35 is quite funny

aviator

OK some of the tech stuff just blew over my noggen but here's what i would want to see...more power in the 1500-3500 rpm band, and an improvemnet in fuel economy at the same time. FYI my truck almost never sees 3000 rpm let alone 4000+ (and then only if i'm bucking really strong headwinds) most of the time it sits at @2750 rpm.
so a fatter torque curve might be nice also. any thoughts? Aviator
ps probably go with billets given the choice as I can't be wheeless for more than a day or two.

Weasy2k

Aviator,
the band is going to get fatter, depending on time here i may or may not be able to get a dyno run that will start at 1500rpm as this truck is an auto i have to do alot of modifing to get the tranny NOT to shift. Like i did with my tacoma.
Ill see what i can do.

Overall the cam design will give you more power and fuel efficency...what more could you want regardless Win Win situation!

As for the cams, there is not going to be billets until i get 20-30 people lined up with deposits for the billets as i cannot afford to lay out the money for 100 blanks. There are options, like me having cores in stock here to take and get grinded then you just send me yuors once your done the swap.

Silver_Truck

if you need a manual truck to dyno and test em in I'm just a hop skip and jump away and am up there at least once a month anyways

Weasy2k

Ill keep that in mind for sure....

^VooDoo^

I know this is an odd question but what is the most common transmission type, I know this has an affect on this subject too, Most 5spd owners have the luxury of cluching and adjusting power distribution when needed, But I know there are more automatictrans user outthere then manual.
Auto's dont have that total control and dog at the bottom so wouldnt it be best to design the power band for those, Manual users will benifit etherway.
I have a 5spd but I bring this up as sellers depiction.

Weasy2k

well the power band is increased from its peak....it will benifit both equaly but what you said makes sense...we autos cannot see lower then 1500rpm just because the stall speed

aviator

Hey weazy what's the quality like on a 'shimmed' cam? Will I have to worry that the thing is going to fracture or one of the shimms "pop" off? I may have to do the timing belt in about 20k or so and I'd probably do the cams at the same time. oh and why would you need to buy so many blanks at once? bulk pricing? I don't know the thought of something frankensteined in a critical part of the engine just bothers me I guess. later aviator

Weasy2k

The qulity is dependent on the cam grinder and how he treats the cam...i went through 5 shops and LOTS of money later to find the one i like...hes been around a long time and takes pride in his work (i can tell by the way he talks about them and explains how he does the job).
His cams are rock solid and are used in MANY high HP high RPM apps with no issue.
THe shims wont fly off if everything is done right. If the clearences are checked they are just as good as stock!

aviator

Just so I understand all this am I going to have to pull the heads completely with a re-ground shaft and put in new bearings etc. or will I simply be able to slide it in from the front like you see them do on tv? Does your shop offer a warrenty? later aviator

Weasy2k

you dont pull them out, thats for a rocker arm style head (most of the time).
You remove the bearing caps and pull them up.
You do not need to remove the heads.
Just the intake mani & timing belt.

I will have step by step instructions soon.

We have no hassle warrenty here, the cams are good from manufactures defect for 2years.
If cams are installed incorrectly the warrenty is voided. Always get these installed properly.

Weasy2k

Engine running...cams are in....

So far so good...you can defiantly feel the effect of a large power-band

The take off power is the same so the tq has not been affected.

I will continue to drive this truck around and give my taco some much needed

I'm testing the 4runners mileage right now too see how that is affected.

Overall i am happy to feel this truck have some power to go up hills.

Crymson

Glad to hear it. I'm sure I speak for all of us here in saying we are eagerly awaiting some dyno pulls

Bumpin' Yota

How much stronger does the truck seem from 2000rpm on up? Does it keep you pegged in the seat after initial take off?

And a +1 on the eagarly awaiting a dyno pull!!