Fast Intentions Stage 2 TT build by MA-Motorsports.

redondoaveb · 03-12-2018, 04:52 PM

Quote:

Originally Posted by Hotrodz

Famous last words!!! You will be the only one I know that does not ask or want more after getting used to the power. You are already down the rabbit whole and there is no bottom just a bend or two....then down it goes again!

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Spooler · 03-12-2018, 06:52 PM

Quote:

Originally Posted by Hotrodz

Famous last words!!! You will be the only one I know that does not ask or want more after getting used to the power. You are already down the rabbit whole and there is no bottom just a bend or two....then down it goes again!

Sent from my SM-N910P using Tapatalk

You forget, I have been in this game a while. I have modded many vehicles. I know where I want to go and stay. It's safer that way and the money hole get's filled in unless something bad happens.

jchammond · 03-12-2018, 11:26 AM

Spooler gonna see those high boost numbers

And be like:

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jchammond · 03-12-2018, 09:50 PM

I’m Jealous; I need to start a “Boosted-Bastards” thread...

jchammond · 03-13-2018, 08:10 AM

Yeah, good videos.
A question that I have (and probably tight lip info per engine builder) is ring gap setting.
As the oem VQ37VHR has a ring gap of .0091” on 1st & 2nd ring.
As the VQ isn’t normally boosted & looking over boosted recommendations of similar engines, such as a VR38DETT, ring gap setting on e85 is (bore x .005) 1st & second rings- up to 15lb boost & (bore x .006) 15-30lb. That’s (.018-.022) on 1st & 2nd rings.
Make you wonder how boosting stock bottom ends & making big power over long periods of time is capable...engine must be very forgiving.

Spooler · 03-13-2018, 08:38 AM

I am looking for info on a closed deck block. The benefits and pitfalls. Maybe I can find something good here also.

Hotrodz · 03-13-2018, 08:47 AM

Quote:

Originally Posted by Spooler

I am looking for info on a closed deck block. The benefits and pitfalls. Maybe I can find something good here also.

There are few good videos on line. I did a search a couple of years ago. If nothing else there is a reason GTR motors are closed deck from the factory. Maintaining cylinder bore tolerances/block strength and heat dissipation are couple of reason in my memory serves me well this morning. Hopefully I'm not have one of my moments again lol.

Rusty · 03-13-2018, 09:29 AM

Need phunk to chime in. He would have the answers most likely.

jchammond · 03-13-2018, 09:10 PM

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Spooler · 03-13-2018, 11:36 PM

Rid3_Famous, that is exactly what I needed. Data. Guess I will be opting for a closed deck block.

Rusty · 03-14-2018, 12:28 AM

Quote:

Originally Posted by Spooler

Rid3_Famous, that is exactly what I needed. Data. Guess I will be opting for a closed deck block.

It's insurance. Why take chances for your power level.

Spooler · 03-14-2018, 12:52 AM

Quote:

Originally Posted by Rusty

It's insurance. Why take chances for your power level.

Rabbit hole.

Rusty · 03-14-2018, 01:09 AM

Quote:

Originally Posted by Spooler

Rabbit hole.

.

phunk · 03-14-2018, 04:02 AM

We have theories and ideas. None of it is worth more than anyone else's until it is accomplishing something.

I am not opposed to the closed deck conversion. I might prefer to try it with the support structure resting a bit below the deck rather than right at it.

I believe that there is a problem deeper in the block, literally. Cutaways of a VQ demonstrate IMHO some concerning lack of girth and doubt about its ability to hold its shape under extreme torsional loads. There is no limit to what can be done to address it, but the real question is, how little can we get away with?

Spooler · 03-14-2018, 07:04 AM

I am getting 3 things from all of this.
One: There is a limit around 800hp that is causing a head gasket sealing problem.
Two: Several folks have had the issue but there has not been much talk on the forum
about it.
Three: I need to consider lowering my power goals for longevity/reliability.

03-12-2018, 11:26 AM	#3 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 59 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684396	Spooler gonna see those high boost numbers And be like: Sent from my iPhone using Tapatalk __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

03-12-2018, 09:50 PM	#4 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 59 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684396	I’m Jealous; I need to start a “Boosted-Bastards” thread... Rusty, Hotrodz and Spooler like this. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

03-13-2018, 08:10 AM	#5 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 59 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684396	Yeah, good videos. A question that I have (and probably tight lip info per engine builder) is ring gap setting. As the oem VQ37VHR has a ring gap of .0091” on 1st & 2nd ring. As the VQ isn’t normally boosted & looking over boosted recommendations of similar engines, such as a VR38DETT, ring gap setting on e85 is (bore x .005) 1st & second rings- up to 15lb boost & (bore x .006) 15-30lb. That’s (.018-.022) on 1st & 2nd rings. Make you wonder how boosting stock bottom ends & making big power over long periods of time is capable...engine must be very forgiving. Hotrodz, Elmo370z and Spooler like this. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

03-13-2018, 08:38 AM	#6 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 14,176 Drives: 2013 Nismo 370z Rep Power: 2684395	I am looking for info on a closed deck block. The benefits and pitfalls. Maybe I can find something good here also. Hotrodz likes this.

03-13-2018, 09:29 AM	#8 (permalink)
Rusty A True Z Fanatic Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 70 Posts: 35,579 Drives: 2011 Nismo GM 6M Rep Power: 2684440	Need phunk to chime in. He would have the answers most likely. Hotrodz, Spooler and jchammond like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

03-13-2018, 09:10 PM	#9 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 59 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684396	Sent from my iPad using Tapatalk Elmo370z, Spooler and redondoaveb like this. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

03-13-2018, 11:36 PM	#10 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 14,176 Drives: 2013 Nismo 370z Rep Power: 2684395	Rid3_Famous, that is exactly what I needed. Data. Guess I will be opting for a closed deck block. Rid3_FaM0uS, Hotrodz and jchammond like this.

03-14-2018, 04:02 AM	#14 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974725	We have theories and ideas. None of it is worth more than anyone else's until it is accomplishing something. I am not opposed to the closed deck conversion. I might prefer to try it with the support structure resting a bit below the deck rather than right at it. I believe that there is a problem deeper in the block, literally. Cutaways of a VQ demonstrate IMHO some concerning lack of girth and doubt about its ability to hold its shape under extreme torsional loads. There is no limit to what can be done to address it, but the real question is, how little can we get away with? Rusty, Rid3_FaM0uS, blueranger 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

03-14-2018, 07:04 AM	#15 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 14,176 Drives: 2013 Nismo 370z Rep Power: 2684395	I am getting 3 things from all of this. One: There is a limit around 800hp that is causing a head gasket sealing problem. Two: Several folks have had the issue but there has not been much talk on the forum about it. Three: I need to consider lowering my power goals for longevity/reliability. Rusty, Rid3_FaM0uS and Hotrodz like this.

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