Fast Intentions Stage 2 TT build by MA-Motorsports.

Bman427 · 01-14-2020, 01:02 PM

Quote:

Originally Posted by cv129

Fast Intentions Stage 2 TT build by MA-Motorsports.

824whp 21psi in 5th, post # 1459

Post #1459, lolol.... I knew it was in this thread somewhere, thanks for saving me a few days of searching...ha

Bman427 · 01-14-2020, 01:12 PM

Quote:

Originally Posted by Spooler

824.x at the wheel, 946.x at the crank. Just JWT C2 exhaust cams listed in build. Don't need any headwork. Just little twins, Zonarotor turbo's equivalent to GT3076's.

Well I guess I'm gonna find out if a bigger combustion chamber does much. Haven't CC'd the heads yet, but I unshrouded the valves pretty good. I have time right now and did it myself, I would have never of pay for port work. I figured I needed all the help I can getting this thing to spool up in the rear.

Of course plan B(n20) will light it up real fast...lol. Then watch the firework show producing a giant cloud of tranny fluid and coolant, lol. Spooling it will be my last problem, for sure...

Spooler · 01-15-2020, 11:15 PM

If you wait until 6:00min. in you will found out why our cylinder walls get torched when the headgasket lets go at full boost.

JARblue · 01-15-2020, 11:24 PM

So you're going with 100 psi on the new build? Nice

Spooler · 01-15-2020, 11:26 PM

Quote:

Originally Posted by JARblue

So you're going with 100 psi on the new build? Nice

LOL, you are a funny guy. We as a group are having a hard time keeping them together at 17-24psi. 100psi, not happening.

phunk · 01-15-2020, 11:29 PM

Boost pressure isnt really relevant to the problem. Engine torque is a much better indication of cylinder pressure than boost is. Not to be nit-picky, but I hate talking in boost psi when in itself its so irrelevant

Spooler · 01-15-2020, 11:34 PM

Quote:

Originally Posted by phunk

Boost pressure isnt really relevant to the problem. Engine torque is a much better indication of cylinder pressure than boost is. Not to be nit-picky, but I hate talking in boost psi when in itself its so irrelevant

True, my diesel truck has around 1200ft/lb of torque and 625hp. I only make 43psi of boost. I think the engine is 16-17:1 compression ratio. On the 5.9 Cummins the torque is real close to double the HP. Sometimes more. Playing in the diesel world, turbo drive pressure and timing will also effect cylinder pressure.

Rusty · 01-15-2020, 11:38 PM

That's called steam cutting. Seen it a lot it in steam turbines that had a leak on the high pressure side. Looks like someone took a cutting torch to it.

In this case. When the head gasket goes. The coolant becomes steam from the flame in the cylinder.

Spooler · 01-15-2020, 11:46 PM

Quote:

Originally Posted by Rusty

That's called steam cutting. Seen it a lot it in steam turbines that had a leak on the high pressure side. Looks like someone took a cutting torch to it.

In this case. When the head gasket goes. The coolant becomes steam from the flame in the cylinder.

I am just about positive the one cylinder I am down the cylinder wall has been torched straight to the coolant. LOL, that is why I haven't been all fired up to diagnose it any. It's a waste of time.

blueranger · 01-16-2020, 12:01 AM

Spooler... Sorry to hear about your build going south. I just came across this today and was always hopeful yours was still running strong. We are still working on mine but taking our time. Just need to keep pushing the platform until we find a solution

Spooler · 01-16-2020, 12:03 AM

Quote:

Originally Posted by blueranger

Spooler... Sorry to hear about your build going south. I just came across this today and was always hopeful yours was still running strong. We are still working on mine but taking our time. Just need to keep pushing the platform until we find a solution

Crap happens, I will get it fixed. I know which way I am headed. You guys will just have to wait and see what I do. By the way, I rarely get it right the first try. LOL Close, but no cigar.

BettyZ · 01-16-2020, 02:59 AM

Quote:

Originally Posted by phunk

Boost pressure isnt really relevant to the problem. Engine torque is a much better indication of cylinder pressure than boost is. Not to be nit-picky, but I hate talking in boost psi when in itself its so irrelevant

Pick all the nits you want. Everyone that matters knows that you know what you're talking about and aren't just being pedantic.

Sent from my SM-G955U using Tapatalk

Bman427 · 01-16-2020, 10:28 PM

What head gaskets did you use? Tq spec?

Spooler · 01-18-2020, 06:29 PM

The next motor is going to be built by Mazworx. I have made my decision. I am excited and nervous. Waiting for the bank account to grow in the next month to kick it off. My money tree will be in full blossom by the end of February. I hope all goes well or I will be waiting a while longer.

cv129 · 01-18-2020, 06:59 PM

Congrats!

Best of luck!!

Damn your money tree grows fast!!!

01-15-2020, 11:15 PM	#2118 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,800 Drives: 2013 Nismo 370z Rep Power: 2684392	If you wait until 6:00min. in you will found out why our cylinder walls get torched when the headgasket lets go at full boost. JARblue, Rusty, Optimiser and 2 others like this.

01-15-2020, 11:24 PM	#2119 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	So you're going with 100 psi on the new build? Nice __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

01-15-2020, 11:29 PM	#2121 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,668 Drives: 370 Rep Power: 974723	Boost pressure isnt really relevant to the problem. Engine torque is a much better indication of cylinder pressure than boost is. Not to be nit-picky, but I hate talking in boost psi when in itself its so irrelevant Rusty, Hotrodz, Optimiser 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

01-15-2020, 11:38 PM	#2123 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,187 Drives: 2011 Nismo GM 6M Rep Power: 2684437	That's called steam cutting. Seen it a lot it in steam turbines that had a leak on the high pressure side. Looks like someone took a cutting torch to it. In this case. When the head gasket goes. The coolant becomes steam from the flame in the cylinder. Hotrodz, Spooler and Tico300zx like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

01-16-2020, 12:01 AM	#2125 (permalink)
blueranger Track Member Join Date: Aug 2012 Location: Albuquerque NM Posts: 577 Drives: 2010 Roadster 7AT Rep Power: 307	Spooler... Sorry to hear about your build going south. I just came across this today and was always hopeful yours was still running strong. We are still working on mine but taking our time. Just need to keep pushing the platform until we find a solution JARblue, Rusty, Hotrodz and 2 others like this. __________________ F.I. Stage 1 Twin Turbo #48 \| E85 FlexFuel \| Built 7AT \| F.I. 34 Row Oil Cooler \| F.I. Flex Plate \| F.I. 19 row Trans Cooler \| MT ET Street S/S \| ECUTEK Tuned by Seb \| RPM Roll Bar

01-16-2020, 10:28 PM	#2128 (permalink)
Bman427 Base Member Join Date: Nov 2019 Location: Pittsburgh Posts: 25 Drives: 09 G37X Rep Power: 6	What head gaskets did you use? Tq spec?

01-18-2020, 06:29 PM	#2129 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,800 Drives: 2013 Nismo 370z Rep Power: 2684392	The next motor is going to be built by Mazworx. I have made my decision. I am excited and nervous. Waiting for the bank account to grow in the next month to kick it off. My money tree will be in full blossom by the end of February. I hope all goes well or I will be waiting a while longer. FL 4Motion, cv129, Rusty and 7 others like this. Last edited by Spooler; 01-18-2020 at 07:03 PM.

01-18-2020, 06:59 PM	#2130 (permalink)
cv129 A True Z Fanatic Join Date: Jul 2011 Location: Dallas, TX Posts: 3,223 Drives: 09 Nismo, 16 Nismo Rep Power: 163995	Congrats! Best of luck!! Damn your money tree grows fast!!! Rusty, Hotrodz, Ghostvette and 2 others like this. __________________ Setrab \| RE-71 \| SPL \| JRZ \| Nismo \| ARK \| Whiteline \| RacingBrake \| CJM Oil Pan \| Ti shield

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