What is the best aggressive cam setup for NA that doesn't effect to driveability TOO much and can be tuned with the Unichip? Is a valve kit necessary? Z1, care to chime in?

 

Bump, I would like the same info.

 

Tag

 

i would think the jwt street grind would be good... or try calling tomei and gettting a custom grind for street use

 

Of the cams I have been able to find, tomei has the most agressive duration and lift grind. If you want more than that, try to find someone that can grind cams and find out what kind of specs they have available. Also I understand that cosworth has a new set of cams available, although I don't know any specs. good luck.

 

Nismo Spec2 cams definitely have the most aggressive duration and the lift.. unless you go for custom grinds...


Nismo Spec 2...
1．INT Cams：284deg, Lift 11.0mm
2．EXH Cams：268deg, Lift 10.5mm

cheers,

richie

 

Would all be a good choice and fine on the street with the tuning side taken care of.... We have not seen a set yet that has affected drivability TOO much....LOL..... They should all be fine tuned correctly...

Mark

 

So everyone of these cams listed can be tuned in with the Unichip? No standalone necessary? Would the idle need to be adjusted? What would be the benefit to adding a valve kit? any? Thanks for the replies!

 

NISMO's need the VTC pullies...not sure if a UNICHIP can control that though.

Tomei do not need them, though I'll be using them anyway (UTEC does not currently support them, but one day, might, so I figure its better to have them and not need them than to take it all apart again!)

We also can offer a set from a major Japanese manufacturer (272 with 11.5 mm lift), though they have asked that we not officially advertise them, as they are trying to acquire an adequate supply of blanks first from Nissan.

That being said, I'll be using Tomei 268's on my car (stock bottom end, plan to rev the car to 7200-7400 (my current redline); Kwame will be running the NISMO Spec 2's, though he plans to build a motor to go with them to support the revs that those cams want.

As far as valves, no practical advantage to running a larger than stock valve on an NA Z without dramatically increasing displacement. Going to a lighter valve/spring/retainer is a nice addition, though not necessary - really depends what your wallet will absorb and what your ultimate goals are. On my car, we're using NISMO springs, and stock everything else. Kwame's car will have the Supertech springs/retainers, and stock valves.

What makes the cams truly sign is the time spent on the headwork and plenums (both upper and lower), and matching them to the right header.

 

You mean the Nismo VTC pullies?

 

yes...and by NISMO's I meant the Spec 2 A amd B type cams..not the mild R tune ones most people run

 

My understanding is the Cosworth is coming out with a few different sets of NA cams for the Z. I think I might want to hang tight and see what they come up with. Z1, If I don't wait for the Cosworths are you saying with my current setup (see sig) that the Tomei 268's would be my best option? You need different springs for those cams don't you? Would I have to raise the idle to 900-1000?

 

Ditto. I'm waiting on Cosworth. My heads are sitting on a shalf at my local machine shop. It's worth the wait to see what they have to offer.

 

Those are some sick specs, wow.

 

but to take advantage of those figures, you need a built bottom end. No point having a cam with all that duration and only being able to spin the motor to at or near stock redline

If you are not building a motor, I'd say run the Tomei's - they will put you in the sweet spot of where a stock bottom end can take. If you plan to build a bottom end to go with the new heads, then you may want to look into the NISMO's

 

Just buy the damn blower!!!!

 

Have you ever seen a dyno with the Tomei's?
Im guessing your best bet for a 6600-7100 redline is to go with JWTs. they make excellent power under the curve and make peak power at around 6500.
In my opinion its not worth the extra $/hassle to get the tomeis over the JWTs.

I love all these people giving advice about cams when they know nothing about cams for the 350Z. Anything more agresive than JWT or Tomei 268 is a BIG waste of money if you arent going to build the motor to redline higher.

 

the JWT is a very mild cam, far less peak power than the 268. The greater lift of the Tomei also can permit for a broader power curve as well, of course, subject to the right header selection and the right tuning. They are the best overal cam, IMHO, for a stock bottom end car with a higher than stock redline, and that is the very reason I have them for my own car.

And yes I know what the right and wrong cams are for this car for a variety of uses, both NA and FI - that is why I made the recommendations that I di

 

Doug has 3 different sets out there he has made 292, 282, and 265 intakes with 11mm lift. Give him a call if you want more info.

Whats with all the sudden interest in cams . . .lol? I guess people are starting to see the bitterness with the turbo car owners.

 

Dave, you know I change mind all the time. I'm sure that is probably the route I will go, its cheaper thats for sure! I gotta stop spending so much money, my wife is gonna go CRAZY on me!