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The best thing to do with an HR is combined the two! VHR bottom end with stronger rods and pistons and HR heads with cams, add some boost and you have an animal of an engine!

35HR or 37VHR block with 35HR heads is where it’s at, there’s a N/A 600hp VQ 4.2 stroker with that combo.

Just for info, coming from someone with experience with the VQ platform and having swapped an HR into a DE platform I can confidently say that DE to HR is relatively easy, however a DE to a VHR is a lot more of a challenge. There's some great info you shared, and I appreciate your attention to this amazing engine platform.

You really know your stuff man. Great video. Btw, in the real world, there's not been much of an improvement with the extra displacement of the G37. Sadly, the added weight/refinement offset the HP gains. If you wanted a lighter and more agile car, the G35 with the HR is probably better.

I love my 370z so much that i have 2 of them. The motor is the best it always screams for more.

The HR and VHR share the same block. The "slightly greater displacement" of the latter is a function of the greater stroke imposed by a different crank/rods and can't be determined by simply looking at the outside of the engine.

Other than the purpose of this video, today I learned that Bryce is a metalhead 🤘😈

I own a 2004 350Z and a 2014 Q60S . Both have 6 speed manual transmissions. I can tell from experience that my old 350Z has a LOT more bottom end torque then my newer Infiniti. But, the Infiniti's 3.7l engine winds up a bit higher and has a bit more power at the top of the RPM curve where as my older 3.5l seems to develop it's top hp at much lower RPM. Basically, I can get a strong pull from the old 350Z at as little as 1800 rpm where as my newer Infiniti's 3.7l engine does not start to pull strong until at least 3000 rpm. As for acceleration, the 2014 Infiniti I have accelerates to 60 at the exact same time as my old 2004 Nissan 350Z. Of course, the Q60S outweighs the old Z by over 500 lbs. Gearing is the same. By this I mean the cars run the exact same road speed at the same RPM. Advertised HP for the two cars is 287 for the Z and 330 for the Q60S. Both engines run very smooth and neither uses oil. The one thing the 3.7L does not do that the 3.5L does is that start up rattle of the timing chain. The old 3.5L engine will give you this fraction of a second timing chain rattle at start up where as the 3.7L in the Infiniti is dead quiet at start up. So, Nissan must have done something to that chain tensioning system in the newer 3.7l engine.

I built a Ford FE 428 years back and used a Rhoads cam and lifter kit, it had pump up hydraulic lifters that kinda did the same thing. that said I have a VQ35DE now, and love it, and respect the HR's around :-)

I use regular gas in my 2007 G35. I've had no power or knocking issues. I've learned that if the compression ratio is more than 10.5:1, you should fill up with premium. After all the years I've owned my G35, I have always filled up with regular. 156,000 miles later my car runs like new, uses one third quart oil after 3000 miles, some of which seeps out of the original valve cover gaskets. My G35 is VERY fast, reliable and I love my blue 4 door sports sedan. Keith Schaedel.....................................5/12/2022........................

Just bought a 2023 Nissan Frontier which has the new VQ38DD engine with a compression ratio of 11:1. Thing pulls hard and I'd like to see a comparison done with this engine.

I never modded it but I loved my 2015 370Z 🥰 I miss it every day, but imo it didn't seem like it was happy at higher rpm.

I love my VHR

The only thing I don’t like about the vhr is the vvel system. They constantly come into the shop with problems and the vvel always gets screwed up some how. Other then that they are great engines. I’ve owned two hr’s and I can’t get enough of them.

I love racing G37's in my G35xS.... (2008) I usually always win. That 7 speed transmission is supposed to be superior to my 5 speed. (I guess the Intake, Exhaust, & other small mods add up. My G35 is FAST! Just did the Waterpump & Gallery Gaskets also, so she's ready to run for a while!)

Vqs are just RB25s that are na and squished together. Both can make great numbers really.

IIRC the primary complaint about the VHR is that the VVEL mechanism dumps a fair bit of heat into the engine oil.

You are really a great information source for a guy who got tired of his GT500(still in garage), and bought a 09 G37 Journey to tinker with. I'm 2nd owner, and don't wanna change this car, or spend unnecessary upgrade money. So far Stillen catback, Z1 CAI, and going to Dynosty in Louisville, KY next month. (I live in KY). Old thread, I know...

Now do VQ37VHR vs VR38DETT

Great info! Just bought a 2015 Qx70 and loving it!! I’ve always wanted this engine!!

I don’t own my vhr 370z nismo anymore but damn that engine is solid and very linear. One complaint, I hated the exhaust noises. Changed the exhaust more than I change underwear jk obviously but you get it.

You need an intro, my guy! Love the channel and the content!

Got a 2008 G35x and i've raced G37xS and gotta say It was pretty neck and neck!

They change the bolt pattern, cause of money.. to charge more.

They moved the bolt holes to combat theft. Engines that are standardised become swapable and therefore more desirable by thieves.

I love my VQ35HR so quick and fun.

VHR uses smaller spark plugs. Smaller plugs have less dielectric strength... meaning worse for spark in boosted applications... but they needed to do that for space the variable valve timing on exhaust and intake.

I've built a few of these, right now I've got an 07 HR with a vhr rotating assembly. In my opinion the rods look the same as far a design but with the vhr being shorter I'm thinking that's why they hold up to more boost. It's not much though, HRs usually break if exceeding 500 lbft at the wheels, vhr will hold about 50 lbft more, both in stock form. Torque is the amount of force exerted and generally is what needs to be limited on stock rods. Nice video👍🏼

QR & VHR owner here !

The vq35 de rev up is the best change my mind

As long as its not tuned by admin , you're all good

A VQ fan and Suicide Silence fan? You single by chance? 🤞🤞

Can you make a video of which one is better to modify for performance

I’ve owned both and I agree both are good but the HR seemed more raw

The VQ35 and VQ37 while tunable are getting on their age since there is no Fairlady 400Z coming yet. But now the next rage is getting the VR30DDTT and swap into the 370Z chassis. The VR30DDTT comes from the Infiniti Q50/Q60.

Waiting for a DE owner to say the DE is the best and then the list of justification bullshit of why it's the best🙉

I have a 370z Upper and lower Mani on my VQ35HR. Sooo... Yes you can. You need the upper and the lower though. Also You can take a 3.7L short block and slap it under the HR heads and now you have total timing controll and something that easier to tune especially with aftermarket cams. The VVEL also heats up oil faster as its oil actuated. Most race teams use HR heads. Though on the street this probably isnt a huge deal.

Bro I wanna talk music with you now, that suicide silence shirt is sick

Stock HR for turbo! For high horsepower it’s BuildVHR with a fat turbo !

I am boosted on my 3.7. No issues and make 600 whp. So it takes boost just fine.

I have a question. what' transmission is better the 5 speed auto from the 35 v36 or the 7 speed auto 2010 g3.7 v36 and up

Awesome video, thanks for sharing!!!!

I got a quick question.is the vq35hr and the vq37vhr cam position sensors in the same place cause I can’t seem to find any in the back but two in the front(vq37vhr)

Which one lives after a throttle body clean without idle issues ?

Excellent video!

I’m stuck on which I should get a 350z or the 370z thanks for the info💪🏼

There is 0 debate, the VVL technology and the bigger motor from the VHR is far more advance in producing power with efficiency. I wouldn't even buy a HR motor for any price.

I think Nissan changed the bolt pattern to charge more. Would it be possible to make a video about the Honda K20C2, sometime? Possibly compare it to older NA Honda K series engines? I know they did away with the typical exhaust design, going with one massive port, rather than using an exhaust header or manifold.

The vhr cams are bigger idk if you noted that.

Idk. On my 370, I feel like I need to rev it up pretty high to get a substantial amount of power out of it

Great video thanks

In regard to Rod differencs; contact JWT (JIM WOLF TECHNOLOGIES) ask for either Ben or Clark. They have tons of knowledge with Z engines and parts. Also Sebastian @ Specialty Z in Canoga Park CA is a high performance Z specialist engine builder.

VHR rods are 1mm thicker giving them about 20% more strength

Why do 37VHR hesitate in initial acceleration VS 35HR? I owned an I35 and an FX35 and now I own a QX50 with the 37VHR and it’s very noticeable. Thanks!

I love my vq37vhr, coming from the Acura TL Type-S the difference in speed is most definitely there, and railroad drive compared to front wheel drive is a whole lot more fun among having two more years to being on but other than that I kind of wish I got the manual but I do have a manual truck so kind of not missing having to shift gears all the time in the daily driver.

worst thing on these engines is the trans which have a cap on the dip stick tube on the trans which makes it impossible to diy change the fuel without a pump

Suicide Silence shirt is B A S E D

So should I sell my pristine 2008 g35 sedan AT w/ 65k miles currently and a brand new transmission put in at 45k miles.... OR get a 2014-2015 q50s to start modding for 400hp-500hp sport sedan? Would like to hear your experienced responses.

i want to swap my 06 g35 with one of these two. i’m thinking the HR will be cheaper and a bit easier to swap. anyone help?

Hi, do you know the physical height difference between the 35 and 37. From pan to top of intake? Thank you for this upload

ummm... did you mention (or did I miss it?) the power/torque increases? any changetro max REVs or REVs at max Power/Tourque?

I can't believe it doesn't have a 2 stage vvl system on both intake and exhaust

Does this mean that the first generation CD transmission will bolt onto the vq37vhr block ?

Didn’t they change the oil pump gears for stronger ones on the HR motor?

4AGE 16V VS 4AGE 20V TOYOTA PLSSSS!!

Got a vq35hr in my 08 g35 and there nothing wrong with it super good engine and gose like snot for what it is

Bro is making an engine video in a Suicide Silence shirt. You Only Live Once, i guess 🤷🏻‍♂️😂

37 is getting a little old woops I mean big

Im not perfect , RESPECT

Why does everyone use VQ 40s can you do a comparison video for vq40de vq35 just need to know more about the vq40

Can you put the VQ37VHR crank in a VQ35HR and have a custom piston made with a higher pin height and end up with a VQ35HR stroker? Or alternatively, just swap out the VQ35HR short block for a VQ37VHR and achieve the same thing.

Nothing bad.... until your galley gasket blows. Great engines after they fixed that issue after 2013.

If they all use the same block, can I build a 35vqde into a 37vhr?

Hey Do You Know about the VQ Engine to GM Transmission Swaps?

G35 HR

VQ40...👊👍😎

Does anyone know the stock throttle body size for the VQ35HR. I've read conflicting info some say it's the same size as the VHR some say it's different. I plan on machining throttle body spacers at a friends shop

VHR was mostly Renault, had Renault stamps all over... Supposedly it was changed around later (told to me by a previous mechanic colleague), but don't trust that info... The 370 never felt natural, especially the with the weird 'auto' gearbox 😑 The electronic rev match when downshifting in the manual version ticks me off as well, are they making the cars for grandads or for true drivers/enthusiasts?

“The hr is clearly the superior engine” bro literally every vq record is held by a DE they’re about .4 seconds or so off the fastest 2j’s stop the nonsense

VQ37VHR all day

I think the VHR rods look a little bigger and kinda a little stronger then the HR but don’t trust what I say I’m a beginner in cars and I wanna get a g37s coupe if I can in manual. I’m doing hella research on the car and seeing what fits and what don’t 🙂

I’m doing a engine swap which should I get I have an Infiniti m35x

Galley gasket?

How about those VR38DETT what is the difference between the VQ's? Thanks

Still waiting for the l15b7 my man

But why they have an open deck?

Which g35 has oil consumption issues and what was the cause and solution?

Why are the 12:1 compression ratio coyote engines taking boost with ease? Almost doubling their horsepower?🤔

Will the VQ40DE Crank fit into either of these 2 engines please?

I have a 07 Infiniti g35 hr could I put a g37 vhr in my g35

Now do a comparison of smaller old reliable engines like the Toyota 4afe vs the 7afe and etc. or maybe you already did 2jz vs 2jz with vvti?

Compare the vq hr or vhr to the vr38dett

This guy doesnt know wth he’s talking about… I have a 2007 V36 sedan 6MT that comes with the HR and I have G37 VHR Upper & Lower Manifold & Fuel Rail installed on my HR and it loves it.

Here we go war

I'm planning to swap my DE to VHR. Has anyone already done it here? What kind of difficulties could I get into? Any help will be highly appreciated

(QUESTION). when driving an automatic g35, if i press the gas fast then let it go and it makes a downshift sound, and it makes me go way faster when thats done, does that ruin my engine over time ?

How the vq37 nismo is bette than the regular vq37?

Question could VQ37 heads fit onto a VQ35?

Vk56de vs vk56ve