Anyone have a built motor yet for FI?

GambitX · 08-03-2011, 05:54 PM

I just found out today that my rods are bent on my G. So now begins the long process of a motor rebuild that will be able to handle 10 lbs no problem.

Ron · 08-03-2011, 06:01 PM

For how long have you been boosted? What psi were you running? What HP?

This G had and engine built because rods bent during tuning

GTM Motorsports*::*Customer Vehicles*::*Juan.U

Edit: Here's the story on the car: Forged Perfomance and my G37 TT build

GambitX · 08-03-2011, 06:45 PM

Car hasnt even left the shop, I believe the turbo kit has been on the car for maybe a few weeks running. They had a few issues with the cars fuel cut, bovs leaking, and the clutch.

Monday they had everything fixed and before I was to come get the car they called and said they think the car spun a bearing. Then today they took the oil pan off and you could see the bent rods.

Stats on the car is Greddy TT kit, 8 psi, 507hp

here is the build:
Mazworx-GambitX Greddy TT build - MyG37

SharpByCoop · 08-16-2011, 07:01 AM

Quote:

Originally Posted by GambitX

They had a few issues with the cars fuel cut, bovs leaking, and the clutch.

Monday they had everything fixed and before I was to come get the car they called and said they think the car spun a bearing. Then today they took the oil pan off and you could see the bent rods.

Stats on the car is Greddy TT kit, 8 psi, 507hp

Visibly bent? My experience is that rods BEND not to extra HP, but to filling the cyl with fuel (or water). I wonder if there was a leaking injector or something and upon start up--BANG--the piston can't compress the fuel and the rod takes the hit. This will happen at any hp level.

A poor tune would burn the piston, but not bend the rod. Methinks this better be solved or rethunk before another lower end is installed.

Good luck.

Coop

GambitX · 08-16-2011, 09:45 AM

Quote:

Originally Posted by SharpByCoop

Visibly bent? My experience is that rods BEND not to extra HP, but to filling the cyl with fuel (or water). I wonder if there was a leaking injector or something and upon start up--BANG--the piston can't compress the fuel and the rod takes the hit. This will happen at any hp level.

A poor tune would burn the piston, but not bend the rod. Methinks this better be solved or rethunk before another lower end is installed.

Good luck.

Coop

Hey Coop,

Yes you can visibly see 2 rods are bent from lookin up into the motor with the oil pans removed. Im still awaiting to hear when the motor will be pulled and taken apart to see what else is wrong, so the car has been sitting for 2 weeks so far.

roplusbee · 08-17-2011, 07:16 AM

Quote:

Originally Posted by GambitX

Hey Coop,

Yes you can visibly see 2 rods are bent from lookin up into the motor with the oil pans removed. Im still awaiting to hear when the motor will be pulled and taken apart to see what else is wrong, so the car has been sitting for 2 weeks so far.

Hopefully you get squared away soon, then maybe we can compare builds as well. Well, when I get back from this glorious place out in the middle of nowhere..........

Ron · 08-03-2011, 06:52 PM

Are rods on a G different than on a Z? There's quite a few TT Z's out there pushing about the same if not more and I haven't heard of rod failure... yet.

GambitX · 08-03-2011, 06:58 PM

should all be the same, yah thats why im in shock and pissed at the same time.

maybe if I was running 12 psi or more i would say ok i deserve it but thats not the case

frostyrock7c · 08-03-2011, 08:00 PM

Wow... that really stinks man. This thread personifies my only fear of going FI.

Two ways to look at it... crap happens, bad luck, etc.

Or shop mistake...

I'd say talk it over, calmly, with the manager or owner and look for explanations of what happened.

BTW, I've not heard of this place and have nothing against them... just saying one of two things happened.

Nixlimited · 08-03-2011, 08:07 PM

Damn, sorry to hear that. We finally have a data point for where the stock motor may be over-taxed. The speculation forever has been 450-500WHP. Best of luck getting it all worked out. Maybe they will throw in labor and you will just have to pick up some forged internals.

98intrigue · 08-03-2011, 10:04 PM

Quote:

Originally Posted by Nixlimited

Damn, sorry to hear that. We finally have a data point for where the stock motor may be over-taxed. The speculation forever has been 450-500WHP. Best of luck getting it all worked out. Maybe they will throw in labor and you will just have to pick up some forged internals.

There still hasn't been enough FI 3.7Ls yet to come up with a "safe" HP range. There are plenty of FI 3.7Ls running over 500whp, including myself. It's all in the tune... and a little luck.

weiboy718 · 08-03-2011, 08:22 PM

this actually proves how good GTM is when working on this platform. so far don't think anybody has blown their motors installed and tuned by Sam.

Reality · 08-03-2011, 09:06 PM

OP,
Engines are not created equal.. I hope the shop steps up for you and takes some responsibility.
GL!

Quote:

Originally Posted by weiboy718

this actually proves how good GTM is when working on this platform. so far don't think anybody has blown their motors installed and tuned by Sam.

I wouldn't bet $ on that....

frostyrock7c · 08-03-2011, 09:22 PM

Quote:

Originally Posted by Reality

OP,
Engines are not created equal.. I hope the shop steps up for you and takes some responsibility.
GL!

I wouldn't bet $ on that....

While I am sure GTM cars have had issues, I would have to say that at this point they must have the best ratio and IMO the better products for the Z34... there are GTM FI cars "all over" and to this point I haven't heard of a failure. Again, I am sure it happens but law of averages...

I mean, I agree with you and I am certainly not trying to start a GTM vs. debate. Simply pointing out that there are far more GTM builds than anything else.

RCZ · 08-04-2011, 09:57 AM

Quote:

Originally Posted by weiboy718

this actually proves how good GTM is when working on this platform. so far don't think anybody has blown their motors installed and tuned by Sam.

My god, give them a blowjob while youre at it.

08-03-2011, 05:54 PM	#1 (permalink)
GambitX Base Member Join Date: Jul 2011 Location: Tampa FL Posts: 48 Drives: G37 TT Rep Power: 14	Anyone have a built motor yet for FI? I just found out today that my rods are bent on my G. So now begins the long process of a motor rebuild that will be able to handle 10 lbs no problem.

08-03-2011, 06:01 PM	#2 (permalink)
Ron A True Z Fanatic Join Date: Oct 2010 Location: Houston, TX Posts: 3,009 Drives: TT '11 PW Nismo #113 Rep Power: 22	For how long have you been boosted? What psi were you running? What HP? This G had and engine built because rods bent during tuning GTM Motorsports::Customer Vehicles::Juan.U Edit: Here's the story on the car: Forged Perfomance and my G37 TT build Last edited by Ron; 08-03-2011 at 06:05 PM.

08-03-2011, 08:00 PM	#9 (permalink)
frostyrock7c Base Member Join Date: Jul 2010 Location: Savannah, GA Posts: 120 Drives: 09 Nismo Silver Rep Power: 15	Wow... that really stinks man. This thread personifies my only fear of going FI. Two ways to look at it... crap happens, bad luck, etc. Or shop mistake... I'd say talk it over, calmly, with the manager or owner and look for explanations of what happened. BTW, I've not heard of this place and have nothing against them... just saying one of two things happened. __________________ 2009 Nismo 370Z #0136 The past... 2008 STi stock thanks to questionable ringlands, 2005 STi modded and very fast, 2004.5 350Z modded and fast-ish

08-03-2011, 08:07 PM	#10 (permalink)
Nixlimited A True Z Fanatic Join Date: Aug 2009 Location: San Diego Posts: 1,235 Drives: 15 GT-R / 11 Prius Rep Power: 26	Damn, sorry to hear that. We finally have a data point for where the stock motor may be over-taxed. The speculation forever has been 450-500WHP. Best of luck getting it all worked out. Maybe they will throw in labor and you will just have to pick up some forged internals. __________________ Car Sold! Pleasure being a part of the Z community. New ride: 2015 GT-R - 647 WHP / 641 WTQ (e85) & 543 WHP / 519 WTQ (91)

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08-03-2011, 06:45 PM	#3 (permalink)
GambitX Base Member Join Date: Jul 2011 Location: Tampa FL Posts: 48 Drives: G37 TT Rep Power: 14	Car hasnt even left the shop, I believe the turbo kit has been on the car for maybe a few weeks running. They had a few issues with the cars fuel cut, bovs leaking, and the clutch. Monday they had everything fixed and before I was to come get the car they called and said they think the car spun a bearing. Then today they took the oil pan off and you could see the bent rods. Stats on the car is Greddy TT kit, 8 psi, 507hp here is the build: Mazworx-GambitX Greddy TT build - MyG37

08-03-2011, 06:52 PM	#7 (permalink)
Ron A True Z Fanatic Join Date: Oct 2010 Location: Houston, TX Posts: 3,009 Drives: TT '11 PW Nismo #113 Rep Power: 22	Are rods on a G different than on a Z? There's quite a few TT Z's out there pushing about the same if not more and I haven't heard of rod failure... yet.

08-03-2011, 06:58 PM	#8 (permalink)
GambitX Base Member Join Date: Jul 2011 Location: Tampa FL Posts: 48 Drives: G37 TT Rep Power: 14	should all be the same, yah thats why im in shock and pissed at the same time. maybe if I was running 12 psi or more i would say ok i deserve it but thats not the case

08-03-2011, 08:22 PM	#12 (permalink)
weiboy718 Track Member Join Date: May 2010 Location: Bay Area Posts: 923 Drives: Infiniti G37 Rep Power: 16	this actually proves how good GTM is when working on this platform. so far don't think anybody has blown their motors installed and tuned by Sam.