Forced Induction motors that have died

Dajerseyrat · 05-23-2014, 04:52 PM

Quote:

Originally Posted by 1slow370

No blowing a second ring sounds like the boost was getting trapped in the rings which leads to fluttering and cracking ring lands, that or that wasn't an issue and the shiz just let go, who knows?

Excessive EGT's or lack of oil, or cylinder wash from running too rich, or detonation...Boost does not get caught in the rings...There is a thing called blowbye...

mikey1600 · 05-22-2014, 06:22 PM

Quote:

Originally Posted by Mr.Squeeze

I doubt it I am not the only Stillen kit that let go I know of 4 motors that had the same issue when pushing the kit hard.

was this on the stillen tune or custom tune? I'm probably heading down the stillen path and would like to avoid this if at all possible haha, I'll be getting mine custom tuned from the get-go

1slow370 · 05-22-2014, 04:18 PM

we should just change the abbreviation for fast intenitions from FI to just Fast or something.

1slow370 · 05-22-2014, 07:17 PM

since we are having blown motors this is a good readEngine Detonation

phunk · 05-22-2014, 07:47 PM

Quote:

Originally Posted by 1slow370

since we are having blown motors this is a good readEngine Detonation

is that your website?

1slow370 · 05-22-2014, 08:07 PM

No zero affiliation just a good read

Sent from my HTCONE using Tapatalk

phunk · 05-22-2014, 08:10 PM

right on. its been like 9-10 years since i have dealt with that guy but he used to get on my nerves lol

1slow370 · 05-22-2014, 08:23 PM

I mean its not the best some of it seems specific to one application like the knock hertz and the figures for peak pressure, and some info is left out like knock windowing but it is a good intro to the concept

Sent from my HTCONE using Tapatalk

1slow370 · 05-22-2014, 08:25 PM

The article on compressor maps im not fond of there were a lot of generalizations like using the simplified ideal gas law instead of the full equation sooo...

Sent from my HTCONE using Tapatalk

blak max · 05-23-2014, 04:34 PM

anyone currently have a blown motor?

1slow370 · 05-23-2014, 04:58 PM

I simplified it ****, more boost =more blow by meaning on a fi motor you want to run a wider second compresion ring gap, especially since the factory pistons have no accumulator groove between the rings. The motor comes stock with the second ring running a tighter gap than the first ring which leads to flutter on a boosted engine since there is more blow by

Sent from my HTCONE using Tapatalk

SG4247 · 12-23-2016, 09:45 PM

Quote:

Originally Posted by 1slow370

I simplified it ****, more boost =more blow by meaning on a fi motor you want to run a wider second compresion ring gap, especially since the factory pistons have no accumulator groove between the rings. The motor comes stock with the second ring running a tighter gap than the first ring which leads to flutter on a boosted engine since there is more blow by

Sent from my HTCONE using Tapatalk

+1
We now do this to the rings on very high compression natural aspiration racing engines as well. Improved oil consumption, improved high RPM ring seal (flutter), and less ring failures with this gap strategy, even though it seems to go against conventional wisdom. We use very thin, light tension rings.

shadow85 · 12-23-2016, 02:39 AM

Oh man 3 pages and only one person man'd up lol!

ANMVQ · 12-23-2016, 01:10 PM

Quote:

Originally Posted by JWillis72

After reading all of the recent stories of motors that didn't survive going F.I. I'm curious about how often this has happened. If you have had a motor die on you I would like to know the details of what happened.

What was the WHP?
What wtrq?
How long did it run before it died?
Was it ever 100% running right before it died?
What kit?
What PSI?
What was the cause if you know?
What year was the car?

Hey Jay ,

incase we forgot my story as it was a few years ago.

What was the WHP? 465
What wtrq? 330
How long did it run before it died? 3DAYS!!!
Was it ever 100% running right before it died? Yes, long story
What kit? Stillen SC
What PSI? 13 PSI
What was the cause if you know? Cyl 3 went bye,
What year was the car? 2011 G37X Coupe

Long story was a drove the car for 6 months @ 412 WHP and 300WTRQ, had some issues with the SC ingesting water, then TB harness broke, fuel pump feed line split cause it was wrong. Pretty much all this happened the same time. So I upgraded the impeller and got a retune from Kaizen. The car ran great for 3 days the blew up.

Not to revisit the whole story but I think the tune was part of the issue on top of the tuner making multiple WOT pulls on the dyno and telling me the car is way down of fuel. They probably could have diaq'd it better and making WOT pulls before finding the feed line was split to the fuel pump. Hell I suggested that over the phone after they had the car for like 2 weeks!

I also upgraded everything under the sun and still failed

JWillis72 · 12-23-2016, 10:02 PM

Quote:

Originally Posted by ANMVQ

Hey Jay ,

incase we forgot my story as it was a few years ago.

What was the WHP? 465
What wtrq? 330
How long did it run before it died? 3DAYS!!!
Was it ever 100% running right before it died? Yes, long story
What kit? Stillen SC
What PSI? 13 PSI
What was the cause if you know? Cyl 3 went bye,
What year was the car? 2011 G37X Coupe

Long story was a drove the car for 6 months @ 412 WHP and 300WTRQ, had some issues with the SC ingesting water, then TB harness broke, fuel pump feed line split cause it was wrong. Pretty much all this happened the same time. So I upgraded the impeller and got a retune from Kaizen. The car ran great for 3 days the blew up.

Not to revisit the whole story but I think the tune was part of the issue on top of the tuner making multiple WOT pulls on the dyno and telling me the car is way down of fuel. They probably could have diaq'd it better and making WOT pulls before finding the feed line was split to the fuel pump. Hell I suggested that over the phone after they had the car for like 2 weeks!

I also upgraded everything under the sun and still failed

I asked this question in 2014 and unfortunately I joined the club of blown motors this year! Was your tuner named Rob by chance?

Sent from my iPhone using Tapatalk

05-22-2014, 04:18 PM	#3 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7252	we should just change the abbreviation for fast intenitions from FI to just Fast or something. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

05-22-2014, 07:17 PM	#4 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7252	since we are having blown motors this is a good readEngine Detonation Plasmite and Wonka2581 like this. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

05-22-2014, 08:07 PM	#6 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7252	No zero affiliation just a good read Sent from my HTCONE using Tapatalk __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

05-22-2014, 08:10 PM	#7 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974725	right on. its been like 9-10 years since i have dealt with that guy but he used to get on my nerves lol __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

05-22-2014, 08:23 PM	#8 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7252	I mean its not the best some of it seems specific to one application like the knock hertz and the figures for peak pressure, and some info is left out like knock windowing but it is a good intro to the concept Sent from my HTCONE using Tapatalk __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

05-22-2014, 08:25 PM	#9 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7252	The article on compressor maps im not fond of there were a lot of generalizations like using the simplified ideal gas law instead of the full equation sooo... Sent from my HTCONE using Tapatalk __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

05-23-2014, 04:34 PM	#10 (permalink)
blak max Enthusiast Member Join Date: Apr 2014 Location: CFL Posts: 476 Drives: Ls swapped 370z Rep Power: 3371	anyone currently have a blown motor?

05-23-2014, 04:58 PM	#11 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7252	I simplified it **, more boost =more blow by meaning on a fi motor you want to run a wider second compresion ring gap, especially since the factory pistons have no accumulator groove between the rings. The motor comes stock with the second ring running a tighter gap than the first ring which leads to flutter on a boosted engine since there is more blow by Sent from my HTCONE using Tapatalk __________________ ANSWER PRICE LIST** Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

12-23-2016, 02:39 AM	#13 (permalink)
shadow85 Track Member Join Date: Jul 2015 Location: South Australia, Austra Posts: 921 Drives: 15' 370Z A/T AMM TT Rep Power: 26	Oh man 3 pages and only one person man'd up lol! Last edited by shadow85; 12-23-2016 at 08:37 AM.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Forced Induction for Noobs...	Slidefox	Forced Induction	48	06-15-2013 12:32 AM
Forced induction	stiso	Northern California Region	8	11-28-2011 12:03 PM
Help don't want forced induction!!!!!	Mjthind	Engine & Drivetrain	64	05-04-2011 01:00 PM
Forced Induction oil temperatures	xbigb4ller69z	Forced Induction	46	08-18-2010 08:45 PM
Forced induction	Seth G	Forced Induction	13	04-09-2010 12:36 AM