Blown Motor, Engine Rebuild/Replacement.

COSMO · 01-10-2015, 08:06 PM

Considering starting a thread to see who has logged the most miles and what kit while boosted.. Before I'm forced to spend more money on another turbo kit I want to really do my homework..

COSMO · 01-10-2015, 08:08 PM

Great news chuck, thanks!! They were not coated but heat wrapped..

Quote:

Originally Posted by Chuck33079

My local shop said they would be able to weld it no problem. I'm sure someone local can do the same. Were yours coated? Can you get it out without pulling the motor again?

elperuano · 01-10-2015, 08:12 PM

I thought I saw your kit was for sale?

Chuck33079 · 01-10-2015, 08:12 PM

From what he said they just have to grind it down, heat it up (600ish degrees) and then weld it. Then let it cool really slow. I didn't think you could weld cast iron, but he's in the NHRA hall of fame for building cars so I'll take his word for it.

COSMO · 01-10-2015, 08:17 PM

I was going to sell it but don't have another 9k laying around. Don't me wrong people I like the kit...

Rusty · 01-10-2015, 10:06 PM

Quote:

Originally Posted by Chuck33079

From what he said they just have to grind it down, heat it up (600ish degrees) and then weld it. Then let it cool really slow. I didn't think you could weld cast iron, but he's in the NHRA hall of fame for building cars so I'll take his word for it.

Used to weld cast iron all the time. All alloys. The way you weld it, depends on the alloy. In a nutshell. You V out the crack with a burr bit. Heat the manifold up to temp (depends on alloy on how high). Some alloys, you have to use the backstep welding method. Some alloys you have to peen the weld after welding. You also have to watch your interpass temp. You don't want it to go to high. So now you can wrap the part in Kaowool insulating blank, or oven to slow cool.

Rusty · 01-11-2015, 12:53 AM

Forgot to add. Before you start. Bolt the manifold down to a piece of thick plate. Like 1" thick. This keeps the manifold from distorting.

roplusbee · 01-11-2015, 08:57 PM

Wow dude. I sincerely hope that you can finally put the problems to rest with your build. Should be good to go after the exhaust manifold(s) get squared up right?

ATLz · 01-12-2015, 08:54 AM

I know it's kinda off subject but I was just looking at the q60 concept and it will have a 3liter twin turbo engine.. At this point I'm almost certain the new z will be fitted with that engine..

COSMO · 01-24-2015, 01:02 PM

Quick update, at this point I was able to order a new gtm drivers side exhaust manifold. I used a vender just to make sure my money would be refunded in this case but turns out gtm is using a redesign for their casting to hold more heat. The gtm kit is a very good kit other than the exhaust manifolds cracking but then again the greddy manifolds have cracked as well. Hoping I can get by with this until Charles has come out with his new kit and may go for more power.. My new motor is smooth as butter now with zero issues idling or running.

Kojack · 01-24-2015, 04:50 PM

Have you gotten to 17psi?

COSMO · 01-24-2015, 05:26 PM

Yes after tweaking the boost controller it hits 17psi easily but have only ran it up that high a few times.. Will be sending another oil sample to blackstone soon and will compare the first one to the second..

VSS370z · 01-24-2015, 07:52 PM

COSMO how many times have you change the oil breaking in the build motor or in how many miles?

COSMO · 01-24-2015, 08:29 PM

I did one at 600 miles while using the Nissan 5-30 ester oil, another done at 1500 miles with motul 5-40 and about to do another at 3000 miles again using motul 5-40....

Quote:

Originally Posted by VSS370z

COSMO how many times have you change the oil breaking in the build motor or in how many miles?

VSS370z · 01-24-2015, 09:00 PM

Quote:

Originally Posted by COSMO

I did one at 600 miles while using the Nissan 5-30 ester oil, another done at 1500 miles with motul 5-40 and about to do another at 3000 miles again using motul 5-40....

Thanks for the good info COSMO. I'll do something similar thanks man

01-10-2015, 08:12 PM	#1249 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	From what he said they just have to grind it down, heat it up (600ish degrees) and then weld it. Then let it cool really slow. I didn't think you could weld cast iron, but he's in the NHRA hall of fame for building cars so I'll take his word for it. GaleForce and COSMO like this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

01-11-2015, 12:53 AM	#1252 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 34,852 Drives: 2011 Nismo GM 6M Rep Power: 2684436	Forgot to add. Before you start. Bolt the manifold down to a piece of thick plate. Like 1" thick. This keeps the manifold from distorting. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

01-11-2015, 08:57 PM	#1253 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 22	Wow dude. I sincerely hope that you can finally put the problems to rest with your build. Should be good to go after the exhaust manifold(s) get squared up right? ATLz likes this. __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

01-24-2015, 01:02 PM	#1255 (permalink)
COSMO A True Z Fanatic Join Date: Dec 2012 Location: FL Posts: 1,816 Drives: 2012 Touring GTM TT Rep Power: 19	Quick update, at this point I was able to order a new gtm drivers side exhaust manifold. I used a vender just to make sure my money would be refunded in this case but turns out gtm is using a redesign for their casting to hold more heat. The gtm kit is a very good kit other than the exhaust manifolds cracking but then again the greddy manifolds have cracked as well. Hoping I can get by with this until Charles has come out with his new kit and may go for more power.. My new motor is smooth as butter now with zero issues idling or running. phunk, Rusty, VSS370z and 6 others like this.

01-24-2015, 05:26 PM	#1257 (permalink)
COSMO A True Z Fanatic Join Date: Dec 2012 Location: FL Posts: 1,816 Drives: 2012 Touring GTM TT Rep Power: 19	Yes after tweaking the boost controller it hits 17psi easily but have only ran it up that high a few times.. Will be sending another oil sample to blackstone soon and will compare the first one to the second.. Kojack likes this.

01-10-2015, 08:06 PM	#1246 (permalink)
COSMO A True Z Fanatic Join Date: Dec 2012 Location: FL Posts: 1,816 Drives: 2012 Touring GTM TT Rep Power: 19	Considering starting a thread to see who has logged the most miles and what kit while boosted.. Before I'm forced to spend more money on another turbo kit I want to really do my homework..

01-10-2015, 08:12 PM	#1248 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 28	I thought I saw your kit was for sale?

01-10-2015, 08:17 PM	#1250 (permalink)
COSMO A True Z Fanatic Join Date: Dec 2012 Location: FL Posts: 1,816 Drives: 2012 Touring GTM TT Rep Power: 19	I was going to sell it but don't have another 9k laying around. Don't me wrong people I like the kit...

01-12-2015, 08:54 AM	#1254 (permalink)
ATLz Banned Join Date: Nov 2014 Location: atl Posts: 19 Drives: 370z Rep Power: 0	I know it's kinda off subject but I was just looking at the q60 concept and it will have a 3liter twin turbo engine.. At this point I'm almost certain the new z will be fitted with that engine..

01-24-2015, 04:50 PM	#1256 (permalink)
Kojack Base Member Join Date: Oct 2012 Location: USA Posts: 144 Drives: G37s Rep Power: 12	Have you gotten to 17psi?

01-24-2015, 07:52 PM	#1258 (permalink)
VSS370z Enthusiast Member Join Date: Apr 2012 Location: Puerto Rico Posts: 380 Drives: 09 Nissan 370z CY M6 Rep Power: 13	COSMO how many times have you change the oil breaking in the build motor or in how many miles?

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