Interesting article:
Hopefully the hiccups of oil burning issues with the previous gen 3.5 is gone. Did Nissan confirm the GTR motor yet? Everyone is saying VQ35HR bored out to 3.8 twin turbo. But I’ll believe it when I see it.
It’s all speculation so far regarding the GT-R engine.
The VQ35HR is suppose to be the best VQ so far so hopefully the oil burning issues will be a thing of the past.
I’m just hoping the HR will bring the price of a DE down. You know… in case I want to score an extra block for… “stuff”
Great article!
This engine is going to be a beast compared to the VQ’s of yesterday.
Given the girth of the rods, and the rigidness of the block, this thing is begging to be boosted.
Hopefully they also improve things like the Intake valve timing sensors and MAF’s, for this generation of VQ engine. All these and more have failed on my VQ and are VERY common items to go! $$$ to replace when they do. 500 for a MAF alone!
Hi guys, the new VQ looks very sweet… Here is a dyno post from My350z.com
HR vs Non Rev-up
HR vs Rev up
From Hydrazine (tony) at Motordyne.
1) Numbers are a bit inflated, since this is a dynopack.
Yes, but the deltas are what’s important.
2) Did you use the same 2007 AT for both tests? Why did the 2007 AT have a difference of 11 lb-ft of tq between the two tests?
Yes. Its the same 2007 AT plotted against a non-revup AT and a revup MT.
You may be confusing the 2004 AT with the 2007 AT. The 2007 AT only has about 3ft-lb variation at the peak.
I had the Cipher data logger connected to the OBDII port but the Cipher data logger couldn’t recognize the new ECU. …So I couldn’t monitor engine coolant temps. I simply allowed ~5min cooling time between runs to get a good ball park on the coolant temps.
- Still very impressive.
Yes. This new HR engine really kicks.
this came out a while back as u can see sept 2006 but its still a great read for some people who missed it
“The VQ35DE is dead, long live the VQ35HR.” thats the last thing they said in the article kinda ignorant if u ask me
As far as I can tell, the VQ35HR doesn’t have as much potential in tuning/building up engine as the old VQ35DE rev-up/non-rev-up.
Also, comparing to the rev-up engine, the power’s nearly identical, the only difference is that they get extra 500hp to keep on going with the power. nothing special really…
I’m also surprised by the torque numbers. the non-rev-up are suppose to have the greatest torque numbers…
Non-rev-up - 274lb/tq (crank)
Rev-up - 260lb/tq (crank)
VQ35HR - 268lb/tq (crank)
Numbers directly from nissan.
Basically, my car is suppose to have the most kick 
^true, hehe.
The Rev-up with spacer and mrev2 is on par with the HR…
How can you say the tuning potential for the HR isn’t as good as the DE? We haven’t even seen the beginning of aftermarket mods for the HR yet! 
And keep this in mind, too: the HP and TQ ratings for the HR are with the new, revised SAE standards which are designed to be closer to actual HP at the wheels (i.e. lower than before). So, under the new system, our DE would have less than 287 HP and less than 274 TQ, or the HE would have higher than 308 and 268 under the old system.
Interesting, I haven’ heard of the new SAE standards.
But I say that the HR’s tuning potential’s limited due to higher compression (blow engine if turbo’ed), and it also seems that Nissan has max’ed out the HR block, leaving not much room for errors.
http://www.canadiandriver.com/articles/jk/051026.htm
http://waw.wardsauto.com/ar/auto_enginerating_ripup/
http://news.hspn.com/articles/194/1/New-Horsepower-Measuring-Rules-May-Lower-Ratings/Page1.html
Higher compression doesn’t mean there’s no tuning potential, boost or no boost. Honda engines, anyone? And like I said before, you have no way of knowing if the HR block is maxed out or not. Only time, experience, and the aftermarket will reveal the truth on that one.
Interesting read about the new SAE certification for horsepower. I guess that explains why the power didn’t impress me much when the engine first came out, and also clears up why the non-rev-up VQ35DE still doesn’t have as much wtq as compared rev-up and HR.
Everyone entitled to opinions, but based on my opinions, the HR doesnt have that much potential… I also have to consider the R&D which has to be done before creating new aftermarket support which is costly especially for a new car.
You mean why the non rev-up DE is rated for more wtq than the rev-up and HR, right? In the case of the revup DE, though… the non-revup IS more torquey… they both go by the older SAE standard. Just the HR falls under the new standard.
Yes, but your opinions are based on nothing more than your own hunch, and no experience. I can accept that that’s your opinion, but it doesn’t mean anything (no offense intended with that statement). R&D is always expensive for new engines, but it still gets done. That’s nothing new.
R+D costs won’t have an effect on the consumer either, the company will budget and allocate a certain amount of funds towards developing the new parts which is nothing new and I wouldn’t expect new parts to be any more expensive then the parts already available for the DE.
As it stands, I’m also quites sure that Stillen will be quick to release a super charger kit. Greddy will probably release something shortly after as well.
I wouldn’t worry about aftermarket support, it will come.