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Swapping A Nissan 350z De To A Nissan 350z Hr

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Old Dec 2, 2019 | 06:49 AM
  #61  
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seems like a sales pitch …
I just want to see results … no BS, just results...
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Old Dec 2, 2019 | 04:52 PM
  #62  
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View this post on Instagram

this g35 coupe with a hr swap being tuned by jon from z1. If I’m not mistaken he spoke to guilty garage. They made it happen for the wiring. Only reason why I have so much interest into a hr/vhr swap. Kinda tired of the de revup I have.

🤷🏻‍♂️
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Old Dec 2, 2019 | 05:06 PM
  #63  
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Originally Posted by Sailorgonzo
Kinda tired of the de revup I have.
what did that car put down? looks promising ... I would love to see the engine bay and how they have everything situated.

If your 300hp DE Rev up bores you dont expect 332hp from a HR to hold your attention too much past a long weekend.

If you want power you gotta go turbo or supercharger ... but like before, you'll get bored with it after a certain amount of time...

not to sound like an old man but that's the problem with instant-gratification
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Old Dec 2, 2019 | 07:11 PM
  #64  
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It bores me because I spent stupid money on the car that 5 months later there is a tapping sound. Car was cammed and made 306rwhp and 264tq. But I wanted to do was to use a vhr bottom and hr heads on the 350z. Thought about purchasing a wrecked 370z for the low pull the trans and motor out and get any other goodies from it to use on my 370z while I entertain myself with the vq37hr. I just have a sentimental value to my 350z. so I will continue to lose money on this car.
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Old Dec 2, 2019 | 08:38 PM
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Originally Posted by Sailorgonzo
It bores me because I spent stupid money on the car that 5 months later there is a tapping sound. Car was cammed and made 306rwhp and 264tq. But I wanted to do was to use a vhr bottom and hr heads on the 350z. Thought about purchasing a wrecked 370z for the low pull the trans and motor out and get any other goodies from it to use on my 370z while I entertain myself with the vq37hr. I just have a sentimental value to my 350z. so I will continue to lose money on this car.
sell everything, find a decent DE and turbo it ... 400 to 425hp all day long ... a VHR will be the furthest thing on your mind!
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Old Dec 2, 2019 | 10:16 PM
  #66  
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Originally Posted by bealljk
sell everything, find a decent DE and turbo it ... 400 to 425hp all day long ... a VHR will be the furthest thing on your mind!
That makes a lot of sense and after looking at various power up options, including a LS swap, a single turbo DE would be my choice too..Engine would still need lower compression pistons at least of course..
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Old Dec 3, 2019 | 07:54 AM
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Originally Posted by 260DET
That makes a lot of sense and after looking at various power up options, including a LS swap, a single turbo DE would be my choice too..Engine would still need lower compression pistons at least of course..
low comp pistons for turbo is a myth … you can run high and/or higher comp pistons (relatively speaking) you'll just need less boost to make the same power ...
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Old Dec 4, 2019 | 08:41 PM
  #68  
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All this HR nonsense is funny, what's the gain? After it's all said and done you can have a DE with more power and it will work 100% as intended. If I'm swapping anything into a DE car it will be the GTR engine, go big or go home.
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Old Jan 29, 2020 | 03:47 PM
  #69  
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Default Long block hr swap with de heads?

Originally Posted by dkmura
So now you can go back and buy the rest of the parts you need to complete this swap. It'll be easier to know you need to swap the steering racks in order to get the HR in. Like I said, the parts are not the biggest problem, the bigger problem(s) will come when you try to integrate both electrical systems together. Nissan engineered the DE and HR differently and their electrical systems are significantly altered.
Is the HR short block compatible with DE heads, intake etc.... ?
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Old Jan 29, 2020 | 03:57 PM
  #70  
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Originally Posted by Kari Rissanen
Is the HR short block compatible with DE heads, intake etc.... ?
no ... for all intents & purposes just consider them incompatible with each other...


Last edited by bealljk; Jan 29, 2020 at 03:58 PM.
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Old Jan 29, 2020 | 06:33 PM
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Originally Posted by bealljk
no ... for all intents & purposes just consider them incompatible with each other...

https://youtu.be/2_oIAcN5syY
Fairly sure Sasha ran a HR bottom with DE heads at one point but they aren't "bolt-on". Dont quote me on that tho. IIRC he said the DE heads flowed better? Or maybe it was for the ITBs. So much more aftermarket for DEs that there is no reason to do such a swap, if you gonna swap might as well do a vr38 or something better than a HR.
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Old Jan 29, 2020 | 08:33 PM
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Originally Posted by DarkZ03
Fairly sure Sasha ran a HR bottom with DE heads at one point but they aren't "bolt-on". Dont quote me on that tho. IIRC he said the DE heads flowed better? Or maybe it was for the ITBs. So much more aftermarket for DEs that there is no reason to do such a swap, if you gonna swap might as well do a vr38 or something better than a HR.
I wont quote ya!

I think he may be the exception but not the rule ... he's done so much machine work between the heads and block to squeeze as much displacement out of it.


https://en.wikipedia.org/wiki/Nissan_VQ_engine#VQ35HR
The new engine block retained the same bore and stroke, but the connecting rods were lengthened and the block deck was raised by 8.4 mm to reduce piston side-loads.

I dont know what they mean by the block deck was raised by 8.4mm if the bore & stroke are the same as it would relate to a DE block/set of heads - that's all I'm saying.
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Old Jan 29, 2020 | 09:28 PM
  #73  
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Definitely not your average guy lol, all these engines are similar to each other tho. I think Z1 was using a 3.7 bottom with 3.5 heads or something like that resulting in a 3.5 that was later brought back up to 3.7. Lots of crazy stuff out there.
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Old Jan 30, 2020 | 10:57 AM
  #74  
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Originally Posted by DarkZ03
Fairly sure Sasha ran a HR bottom with DE heads at one point but they aren't "bolt-on". Dont quote me on that tho. IIRC he said the DE heads flowed better? Or maybe it was for the ITBs. So much more aftermarket for DEs that there is no reason to do such a swap, if you gonna swap might as well do a vr38 or something better than a HR.
https://www.onpointdyno.com/vq35-hr-vs-de-head-flow/

Sashas testing. Stock HR heads flow almost as much as his ported DE heads.
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Old Jan 30, 2020 | 07:13 PM
  #75  
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Maybe it was for the ITBs then but he was using them, I'm more interested in what the hell Z1 did to their engine as they are boosting it. NA is not the way to get power unfortunately, Sasha's current engine is the exception and nobody will ever get close.
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Old Jan 31, 2020 | 09:13 AM
  #76  
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I would like to boost the performance of my daily DE but keeping it a streetcar, So what HP range can a DE do without doing the internals safely without worrying about blowing the engine and doing the internals, safely without worrying about blowing the engine?
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Old Jan 31, 2020 | 09:31 AM
  #77  
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Originally Posted by Mamiph
I would like to boost the performance of my daily DE but keeping it a streetcar, So what HP range can a DE do without doing the internals safely without worrying about blowing the engine and doing the internals, safely without worrying about blowing the engine?
welcome to the forum. Start a build thread to discuss your options. Introduce yourself, tell us about yourself, background, knowledge base in cars is, what you are looking to spend, etc.

Last edited by bealljk; Jan 31, 2020 at 09:32 AM.
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Old Jan 31, 2020 | 02:42 PM
  #78  
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I'm sure others can chime in on exactly how much but I would say 300-350 whp if the engine is in good condition and everything is set up properly.
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Old Mar 4, 2020 | 07:55 AM
  #79  
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I ended up buying the bullet mailed harness and ecm in I will be getting my swap harness hopefully within the next 2 weeks
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Old Mar 4, 2020 | 08:01 AM
  #80  
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I paid 350 for hr engine



tranny harness and ecm I'm not too concerned with the power output I just want a newer platform and to be able to keep it Nissan I can swap the block out with a vhr block and have a little more fun with it in the future. This is a pic of the the engine it looks clean and I pulled off of a wrecked 08 z was stock and i also took the headlights and taillights off of it. Might do head gasket and timing chains and call it a day maybe new clutch as well I'm trying to keep this as budget friendly as I can though and guilty garage said de rack and pinion clears.
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