To be honest if this turns out to be true, and I’m not ruling that out, I would swap the VR30DDTT. It seems like it would be the same amount of work as swapping a VHR, and there’s more potential in that engine that can be had reliably. The big hold up is the lack of support for the swap, mainly the wiring harness. That’s not something I would be comfortable going it alone on.

 

How would you tune the VR to the DE chassis for mostly full functionability? Didnt you say you were not interested in FI?

Was it AMS that tuned the 400z to 525hp/561ft-lbs - not that this isnt impressive but a turbo’d DE takes 12psi to 15psi to make 525hp.

One of the huge benefits of the DE is that it still, to this day, has great aftermarket support - Link, Haltech, AEM are still making tuning solutions for the platform. This unfortunately cannot be said about the HR, VHR, and 3.0VR … is ecutek the only option for tuning a VR these days?

You’re venturing into chasing dreams at this point - stick with your NA HR/VHR hybrid and show us all the way

 

From a mechanical standpoint the DE, HR, VHR, VR38 will be superior because of port injection. Ain't a person on this planet gonna convince me that DI is better.
What modifications do you have right now BTW?
Ever considered adding cams and nitrous to your setup to achieve your goal?

 

VR30DDTT is a much cooler swap. No cool VQ sounds though. Don't forget a nice bling BBK set.

Brackets:
https://www.z1motorsports.com/z1-pro...t-p-27529.html

Carbon Ceramic Rotors:
https://www.amsperformance.com/produ...brake-package/

R35 OEM Calipers:
https://www.ebay.ca/itm/275361598048...evt=1&mkcid=28

R35 OEM Caliper Rebuild Kit:
https://www.z1motorsports.com/front-...t-p-13344.html
https://www.z1motorsports.com/rear-b...t-p-13350.html

 

This is an area I am familiar with. I have done intake flow testing and head testing on other platforms. I would recommend a DIY flow bench and doing the testing off of the car. The only way to do it on car is a hot-wire anemometer setup and getting ones that are going to be able to react fast enough to capture the valve events is going to be prohibitively expensive. A DIY flow bench will get you 95% of the way there and won't require a lab worth of equipment.

 

I can appreciate the bench testing but I also think a real world dyno test have merit as well -

Any info you can provide on a DIY bench test setup would be appreciated.

 

The stroker kit is 6k alone. You have a 5k budget for engine parts.

 

OP is talking about taking a VHR block/lower and putting HR heads on it, and swapping it into a DE …

Now would be a great time to tell everyone how much you’ve spent on your FI kit, how long you had it, how easy it was, and how much hp/torque you’re putting down …

 

I'm not particularly interested in a boosted engine, no. But if it turns out after all my research that it really is the only viable option to get the reliable power level, and driving experience that I want. I would swap in a factory boosted engine before I would build my own. As far as I have read and seen, Ecutek is the only tuning option. There are VR30DDTT swaps into Z's and G's out there with (nearly) full functionality. I think its just a matter of time before there is plug and play options available.

Are you saying it is a "dream" regarding the HR/VHR hybrid, or the VR30DDTT? Both have been done by others, I'm not dreaming either of these up myself...

 

The mods to my '05 V35 G are the following:
18x10 Konig Ampliform wheels all around
295/35ZR18 Nitto Invo tires square
Brembo brake swap
Wavespec Silver line rotors
Bilstein B8 shocks
Nismo S-Tune springs
Sikky adjustable swaybars
Fujitsubo Legalis exhaust
Manzo HR Y-Pipe
ISR Longtube headers
AEM Dryflow filter
Z1 z-tube intake
75mm Maxima Throttlebody
12mm Blox plenum spacer
MRev 2 lower intake
Iconic dynamics emblem delete grill
Iconic dynamics OEM replica front lip
RJM adjustable clutch pedal
Torque Solutions short throw shifter

I don't think I would ever do nitrous, mostly because its a pain in the a$$ to get where I live. I did just consider putting cams in my DE, but when I started comparing the dyo sheets for cammed HR's vs DE's it seemed like the obvious choice to me as the superior platform to do an NA build on. The "cheap" stroker crank of the VHR also intrigued me vs the expensive stroker options for the DE.

 

The stroker crank is just stock crank and rods from a VHR. I can pick them up all day long for $500. Its not an aftermarket manufactured kit.

 

Yes please do, I am interested to hear your experiences.

 

I dont know that I’ve ever seen a VR30 in a DE/HR z/g? Not saying they arent out there, just dont see them - not here, not on FB. Can you show me some examples?

Ive seen more people do the HR/VHR hybrid than do the VR swap.

I dont think these will be more and more common … There is not enough support / outfits making the swap harness and tuning options are limited. The reason you see thousands of TT z and g is because there are a healthy amount of kits avalable, it’s relatively easy to fabricate your own kit, there are both turbo and supercharger options, and a decent amount of tuning options (at least for the DE), and plenty of examples of it working 100%.

Further - cost per hp gained is respectable. You can turbo / tune a DE for $5k to $6k and get 425hp/400ft-lbs or bump up to $8k to $10k and see 600hp / 600ft-lbs with plenty of support.

The AMS kit that makes 525hp/560ft-lbs is going to run you quite for the AMS goodies to start and then add your engine/equipment cost, your wiring/ecu cost, and your tuning cost (not to mention few solid examples of this working).

I would invite you to start the build and pave the way…

 

His car (Deadeye) is THE perfect example of bang for buck and what I think would suit you better.
I get wanting a factory turbo but in this case PI vs DI I think PI wins.
Nice mod list BTW, his car is at the lower end of power but that's all you are looking for so win/win.
if you haven't, try to get a ride in a HR car and see what you think, dynos only relay some info but not always how the car will FEEL.

 

I think Z1 will make a mainstream kit for swapping a VHR within a few years time. But I still think it's an inferior engine to the DE/HR.

 

Actually, I have updates to that. I was only running 3.7psi at redline due to wastegate bleed, which is why I had 335tq at 3500rpm and only 295whp at redline. I should be closer to 330whp at same timings, but advanced those about 11 degrees across the board so maybe closer to 350?. Hopefully going to the track on the 30th to see results. I was trapping 110mph in the quarter a few weekends ago, but I just looked into the low hp numbers after that. If i can get the boost controller and fix an exhaust leak i'll be going. Then if my times look good I'm going to re-dyno the most hp for the $ 350z build in existence

 

ohh gotcha gottha, I misread. I was like why dafuq would anyone spend 6k on a stroker kit, lol

 

I can see stock crank, but aftermarket pistons and rods would be preferable.

 

Would that be necessary at only 350whp? Beyond that sure, but I don't plan on going there.

 

There are few guys that have documented their swaps on Youtube, and there are a handful of others on forums.
https://www.youtube.com/c/NoirTM (370Z)
https://www.youtube.com/c/DannyZee (350Z)
(G35)

I am told Z1 is working on a wiring harness, and I spoke with Guilty Garage, and they said they planned on it as well.