HR motors have a special nissan variant of the legendary VTEC technology

 

They can control the valve timing yes but the cam setup is still completely different from the vtec. It'd be cool to plop the HR heads on the DE so I can tune the exhaust side cams, see what gains are there to be made.

 

Not as tuneable as once expected either with the cam control....same goes for the 370 cam system

 

If that is the case then all the headache to get it won't matter much. The intake side is the most important anyway from what I've gathered.

 

HAHAHA ohh geesh, you crack me up. "No boys, theres two O's in goose"

 

....if ur trying to be funny id stick to ur day job cause that was laaaaaaammmmmmeeeee and doesnt even make sense

 

you could do that with revup heads...revups have adjustable intake and exhaust cam timing.

it would involve wiring (how much, I don't know), but the heads themselves will bolt up to a non revup block (at least in RWD guise, I don't know if everything is the same on the FWD setups though)

 

HR mods cost more than DE mods

 

Well it looks like when you order cams, you have to specify revup specific or DE specific anyone know why that is? That would be an interesting task to play with in the future, get a set of revup heads, would have to have em reported and stuff too. And then see what we could get out of the exhaust cam timing. The wiring I don't think would be much different on the standalone just a few other pins to do the exhaust side I would assume. Would definitely be cool.

 

because revups have adjustable exhaust cam timing and non revups don't - so the cam sprockets are different

 

show me one single example aside from an intake where this is true?

 

watevs, i bought a stillen dual intake for my HR for $259 new

 

Mods specific to it are def.
Mods that aren't are obviously the same

-Brian Crower Cams,

Brian Crower BC0221 Camshafts Set Stage 2 VQ35DE 350Z / G35 Cams
$1,089.95 new - FRSport.com
Brian Crower Stage 2 Street/Strip Camshaft Set Nissan 350Z
$965.99 new - CI Motorsports
Brian Crower Camshafts - 350Z 2008 BC0223 VQ35HR
$1,196.00 new - THMotorsports


-Greddy, HKS, JWT TT kits- Generally $1k-$2k more than DE counterparts

-If a plenum spacer comes out, (I know it won't) it will be more $$$,

-NIB Headers from Stillen. (only ones I know of besides some 4-figure long tubes.) From Stillen:
2003 - 2006 350Z Mild Steel - Ceramic Coated 508350M 508350M $681.41
reduced to $523.95 Buy

2007 - 2008 350Z
2009 - 2009 370Z Ceramic Coated 409 Stainless Steel 508385C 508385C $786.45
reduced to $567.55 Buy

Now there is a way to get hr 409's cheaper than de regs for cheaper on the website, but these are just some examples that mods really are a bit pricier.


it does matter to some people.

 

EDIT: I wrote something stupid

 

but a DE you need to build a motor for, and do springs for most worthwhile cams, and an HR you don't

I think if you compare the overall costs to build them to similar spec, you'll find prices are very much inline - and with an HR, you simply need to buy less in the first place

 

HR Full bolt-on + spray (100 shot) = Done!

 

Learn to drive the damn car.. DONE!

 

What confirms the DE engines were designed by Renault? On the contrary, the first generation VQ engines began design in 1989, and were put into application in 1994. The second generation VQ engine design (both 3.0 and 3.5 liters) was begun before the decade was over, and the design was presented at the SAE 2000 World Congress. The engines were put into application in 2002. The primary engineers who designed the second gen VQ engines were:

Toshiya Arai
Junichi Yajima
Keiichi Murata
Masahiro Hibino

All of whom worked for Nissan Motor Co. The SAE papers which detail the second-gen engine series offer nothing to support the idea that the design was anything but a Nissan effort to update their original VQ engine.

I have seen people comment on how the VQ35DE is a Renault design, but I wonder where this rumor comes from. Or if they know that the DE was finished with its design less than a year after the Renault Alliance- which is hardly enough time to complete the testing and analysis that went into the second-gen update.

Will

 

word, can't deny that.