Progress is being made on my new Intake.

Welp, the 2nd intake Phunk is making along with mine is also sold. LOL

Everything may be for sale. If you want dibs on something. Let me know.

Dibs!

Unless I get a billet block made a VR38 swap it will be. Or, I will just turn it down to 800whp.

I am looking to get a group buy together for a Billet VQ37VHR block. I need 3 folks to add to the list. I have two people in the list. Let me know.


https://www.mazworx.com/pro-street-b...5de-block.aspx

After a ton of thought on this issue I have a couple of choices if I want to run in the 1k whp and be reliable. Get a billet block made and then hope the heads will be OK or just swap to a VR38. Otherwise, I will have no choice but to turn it down to 800 to 900whp and call it a day. I have tried my best to make the VQ37vhr work for me. It's just not happening. I have no faith in the SOHO top fuel hoops either. They may work for a little while but I believe they will fail at 1kwhp for an extended period of time also. There are only 2 cars at over 1kwhp and they are basically drag cars. So much for the arse load of money I have spent. I am not sure which way I am going yet. Will have to wait and see.

I am leaning towards just turning my car down. The VR38 swap car that is in the middle east works engine wise. They just have absolutely No traction with over 1k of TQ. So If I can't use it, why bother. Ugg, this is not good for our platform but it is what it is.

I now have 3 people in for the Billet block. It will be around 10k for just the block. We need 2 more folks.

Billet block is not happening. We just don't have the interest on our platform and the misinformation is way way off the chart. The stock block is just garbage but it was never designed for 4 times the power level we are asking it to handle.

What am I going to do? I have no freaking idea.

This video kind of sums up the VQ. If I keep it, I will just have to turn it down.
VQ stuff starts at 7:55.

4. If you get this 5th person and iron out the details let me
Know. I have a friend who is interested

I have known for quite some time about Chris Forsburg's stuggles with the VQ. It's not new to me. When I lifted the heads and torched my first motor Brian and I had a discussion about it. Brian and Chris are tight since MA was the home shop for him when he was based on the east coast. I tried the Mazworx engine and it held for a little bit until I got greedy with the HP. My Mazworx motor is not toast, it just needs the headgaskets replaced. I can drive it around and it won't overheat. It still holds boost without pushing water if I keep the boost turned down. I have a few other issues I am working on right now I need to fix. I'll leave it at that.

:iagree:

I feel the VHR VQ's sweet spot for power and reliability is around 750whp to 800whp, that's after being full built as well.

If you want more and want to be reliable I think a VR38 swap is the way to go or obviously a nasty boosted v8.

If I keep the Z and don't go to a 2023 Supra with a 6MT when they release, the VR38 swap will probably be the route I'll take.

Last I heard used VR38's are only around $10k now (correct me if wrong) and even in stock form the VR38 can take more power than even a built VQ.

If and when I start chasing big power for the Z, the VR would be my goto.

I think they will run more than that cost wise.. Nissan has been skyrocketing the price of VR38 parts the last year, which should be driving up the used engine prices too since less people will just build all new ones now. They can handle around 825-850rwhp stock but not forever... mine lasted about 2 years like that in my GTR before bending a rod. Though the GTR will load the engine up much more often with the AWD, and perhaps in a Z it may go a lot longer.

Last I checked a VR38 junkyard longblock was 14-17k for a good one. The motors can't be bored so if it is fubar, a new block will be needed.

I am still not sure what I am going to do yet. If a VR38 was only 10k I would have already had one sitting at MA.

Hate to say it bro. But, you have one of the best platforms for power and speed in your garage already. You already know you would have an absolute monster if you dumped the money into "that" instead.

Still, I totally get wanting to have something very fast that was never intended to be very fast. Plus, like you mentioned months ago, nothing drives like a Z and it's true the Z is one of the best drivers car out there. It's a shame Nissan took a motor out of the parts bin to stuff inside it.

If only Nissan designed an all new VQVHR with a closed deck back in 2009, it would be a different ball game altogether for our platform right now.

Seems like a VR38 is the only way to meet your hp/reliability goals.

A twin turbo LS is damn tempting.

Oh yeah, that is my wife's car. I am not allowed to touch it via upgrades. She likes it just the way it is. I am fine with that.

I think I am going to optimze the hell out my car to run 22psi of boost or lower. Install a dry sump so I can track the car if I want and not have to worry about oil temps. I am too far in to change directions.

The wife is pissed about me even considering putting a VQ back in my car. She says I would blow it up again. End of story. She is right. So, No more VQ. Wait and see which way I go.

“You are not going to be happy unless you are going Mach 2 with your hair on fire”

Your will never be at peace if you feel like you’ve settled for a lower goal, especially when it’s because a shop not delivering.

If you can truly be ok with 800whp, pls by all mean save the money. But if there remains an itch, you will end up scratching it….

Good luck sir :tiphat: :driving: hell of a car either way

Note: Lol we talk about 800whp like it’s some kind of unloved step child here :roflpuke2:

We just can't make it reliable with the VQ. I could try again but the odds of failing again are against me. Why waste the money only to have the heads lift again. SOHO motor, that's a hell no. Only way I would even consider installing one is if they gave it to me for free and Nick dang sure wouldn't tune it. My current tune is trash.

Going your definition of “VROOM VROOM” does start “VR”….haha.

is 1000hp really worth it. So much trouble. So much money. Always worrying the engine is going to pop it's gasket.

And at the end of the day can the car even best a 500hp GT3 or Viper ACR X on the track...

Just doesn't seem worth it. Doesn't even seem like it would be fun to drive either...

Despite best efforts and big budgets, at that power level, you are always gonna break something and go back to the drawing board. Further complicating the matter is you are forcing air into an engine that wasn't designed with FI in mind, and that wasn't anything special to begin with. Sure it can take some FI, but once you go over a certain power level, unsurprisingly and despite best efforts, things are gonna start to break and the car will be less and less reliable. I'm sorry to say Spooler, but this attempt to make this engine reliable at anything close to your power goals was a long shot, and you went deeper and deeper into the rabbit hole with potential solutions. It would have been great if you actually discovered a "secret" to making this engine reliable and I commend you for that effort, but the money you have sunk into this to get here ($140k as you mentioned earlier in this thread) is an unfortunate casualty of war. Where you go from here is up to you honestly, but for what it's worth, my advice would be to turn it down and just enjoy what you have. Sometimes less is more.

I will go with a different motor that can handle it. End of story. I have no faith in the VQ to live at 800whp and up long term. It's all good. I gave it my best shot. Sometimes you just have to accept that it's not possible. No worries on my part.

Now everybody knows why folks do +900whp and disappear. I will just do a motor swap and keep on trucking. I am not selling my car. I am a Z person, end of story.

The only sucky part is I should have done this last motor. I just wanted to give it one last try. My 2nd motor is way better, just not up to +900whp long term. My wife refuses to let me even try to put a VQ back in and turn it down. I would never hear the end of that if I did.

So...VR38 or Boosted v8? I would think the VR38 would be easier to shoehorn in the Z.

It sure would be way easier.

Sent from my SM-G986U using Tapatalk

RB26?


Sent from my iPhone using Tapatalk

It pains me to say this but I sold my CJ Motorsports intake. I never even got to see it in person. Since I am not going back with the VQ, it had to be done.

But if you chose to go with a VR38, wouldn’t that intake still have fit? Maybe just need a modified lower plenum. (People use the VR38 plenum on VQs all the time)


Sent from my iPhone using Tapatalk

I haven't said what I am going to do yet. No that intake would not fit on a VR38. I would have to get another one made. CJ Motorsports does make one for the VR38 though. Chris Forsberg has one. He has ran a twin throttle body and a single throttle body one which he still has on the car now.

Who knows, I may K swap it with a compound turbo setup.

I still think you should do a 2J swap :stirthepot:

Why not just put an LSX in it with turbos.