Billet VQ37HR block.

Hotrodz · 12-11-2019, 04:38 PM

Quote:

Originally Posted by Mr.Squeeze

I'm sure this will be kept top secret.

If someone comes out later and be like we O.Ring the heads and blocked to create a better seal I will

I agree but Z owners can't keep their mouths shut!!!

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Spooler · 12-11-2019, 04:42 PM

Quote:

Originally Posted by Mr.Squeeze

I'm sure this will be kept top secret.

If someone comes out later and be like we O.Ring the heads and blocked to create a better seal I will

Noop, the block was sleeved. I forgot the name of the sleeves though. He also has a Bryant racing crank. It is a 4.0 liter. They were
not Darton MID sleeves I don't think. It started with an L, I think.... Not sure if they left any protrusion either for better clamping force
and fire ring seal. What headgaskets, I don't know either.

Spooler · 12-11-2019, 05:03 PM

Quote:

Originally Posted by Spooler

Noop, the block was sleeved. I forgot the name of the sleeves though. He also has a Bryant racing crank. It is a 4.0 liter. They were
not Darton MID sleeves I don't think. It started with an L, I think.... Not sure if they left any protrusion either for better clamping force
and fire ring seal. What headgaskets, I don't know either.

The same machine shop that built my engine did his. They are no joke. Take a while but who cares...

Mr.Squeeze · 12-11-2019, 05:05 PM

Quote:

Originally Posted by Spooler

Noop, the block was sleeved. I forgot the name of the sleeves though. He also has a Bryant racing crank. It is a 4.0 liter. They were
not Darton MID sleeves I don't think. It started with an L, I think.... Not sure if they left any protrusion either for better clamping force
and fire ring seal. What headgaskets, I don't know either.

I really hope it works and it just not another failure on a long list of VQ's dating back to 350'z. I have seen so many fail or make well north of 800whp and disappear. One thing they all have in common head gasket/ pushing coolant.

phunk · 12-11-2019, 05:53 PM

Its probably a LA Sleeves liner, which I was just telling Seb that is going to be my last effort on the cast block. The last thing I can think of trying is to get rid of the aluminum at the top of the liner, which forms the deck surface. Just bore out the stock liners and put in some dry sleeves that go all the way to the top of the deck. If that doesnt fix it, I am done with that block!

This has been done though, I dont recall by who, or when, or if its being pushed very hard or not.

Even with that, I will still want to perform the other things we worked out to increase the rigidity of the block. Because high power VQ have also been split right down the center of the V before, and no cylinder liner is going to address that.

Spooler · 12-11-2019, 07:56 PM

That's it. LA dry sleeves. I would rather just fix it right the first time. We need 3 more people.

Elmo370z · 12-11-2019, 08:10 PM

Quote:

Originally Posted by Mr.Squeeze

I'm sure this will be kept top secret.

If someone comes out later and be like we O.Ring the heads and blocked to create a better seal I will

Already been done

hustleman222 · 12-11-2019, 09:40 PM

Yeah I really think the solution is gonna be the "hoops" not just wire "fire rings". The way they are going to press the gasket into the boss almost makes it impossible to push coolant.

Elmo370z · 12-11-2019, 10:18 PM

Quote:

Originally Posted by hustleman222

Yeah I really think the solution is gonna be the "hoops" not just wire "fire rings". The way they are going to press the gasket into the boss almost makes it impossible to push coolant.

Try it and let’s us know. That statement is just paper weight

phunk · 12-11-2019, 10:38 PM

Theres been a lot of talk about those lately. I think theres a few guys with builds in the works with them. Hopefully it works out in the long term. 1000hp is hilariously easy for a VQ to make, if only they could hold it for a day.

hustleman222 · 12-11-2019, 10:42 PM

Quote:

Originally Posted by Elmo370z

Try it and let’s us know. That statement is just paper weight

I don't have that problem yet, but I'm in the works of heading that way. I won't push over 650whp for at least another year. I just spent $15k on a setup and would really like to drive it for a year first. But by the time I'm ready, I really do think this will have proved itself.

Elmo370z · 12-11-2019, 10:52 PM

Quote:

Originally Posted by hustleman222

I don't have that problem yet, but I'm in the works of heading that way. I won't push over 650whp for at least another year. I just spent $15k on a setup and would really like to drive it for a year first. But by the time I'm ready, I really do think this will have proved itself.

REally hope you consider a stand-alone

Elmo370z · 12-11-2019, 10:53 PM

Wish I was building for big power now

Spooler · 12-11-2019, 10:54 PM

Quote:

Originally Posted by Elmo370z

REally hope you consider a stand-alone

Yeap, if you open up a channel and log Coolant pressure we can get lots more data on the problem. No need for all this damn guessing.
You can't do that with Ecuteck or Uprev. I may wait and get my Motec up and running before I do anything.

hustleman222 · 12-11-2019, 10:58 PM

Why are you saying I need a stand-alone?

12-11-2019, 05:53 PM	#80 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,668 Drives: 370 Rep Power: 974723	Its probably a LA Sleeves liner, which I was just telling Seb that is going to be my last effort on the cast block. The last thing I can think of trying is to get rid of the aluminum at the top of the liner, which forms the deck surface. Just bore out the stock liners and put in some dry sleeves that go all the way to the top of the deck. If that doesnt fix it, I am done with that block! This has been done though, I dont recall by who, or when, or if its being pushed very hard or not. Even with that, I will still want to perform the other things we worked out to increase the rigidity of the block. Because high power VQ have also been split right down the center of the V before, and no cylinder liner is going to address that. Mr.Squeeze, Rusty, Hotrodz and 2 others like this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph Last edited by phunk; 12-11-2019 at 05:56 PM.

12-11-2019, 07:56 PM	#81 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,800 Drives: 2013 Nismo 370z Rep Power: 2684392	That's it. LA dry sleeves. I would rather just fix it right the first time. We need 3 more people. Last edited by Spooler; 12-11-2019 at 07:59 PM.

12-11-2019, 09:40 PM	#83 (permalink)
hustleman222 Enthusiast Member Join Date: Sep 2014 Location: Louisiana Age: 40 Posts: 250 Drives: 15 Nissan 370Z Nismo Rep Power: 3366	Yeah I really think the solution is gonna be the "hoops" not just wire "fire rings". The way they are going to press the gasket into the boss almost makes it impossible to push coolant. __________________ 316whp/262tq 12.38 @ 110mph on 3.91 gears 336whp/273tq Didn't push it hard enough. Turbo Time

12-11-2019, 10:38 PM	#85 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,668 Drives: 370 Rep Power: 974723	Theres been a lot of talk about those lately. I think theres a few guys with builds in the works with them. Hopefully it works out in the long term. 1000hp is hilariously easy for a VQ to make, if only they could hold it for a day. Rusty, Ghostvette, Spooler and 1 others like this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

12-11-2019, 10:58 PM	#90 (permalink)
hustleman222 Enthusiast Member Join Date: Sep 2014 Location: Louisiana Age: 40 Posts: 250 Drives: 15 Nissan 370Z Nismo Rep Power: 3366	Why are you saying I need a stand-alone? __________________ 316whp/262tq 12.38 @ 110mph on 3.91 gears 336whp/273tq Didn't push it hard enough. Turbo Time

12-11-2019, 10:53 PM	#88 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,709 Drives: 09 nissan 370z Sp M6 Rep Power: 295378	Wish I was building for big power now

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