Mod turns very bad - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

trasherseb · 03-23-2016, 04:16 AM

Hi guys I find myself'in front of engine breaking after'mod and prog on the dyno.
Supercharger pulley 2,35, Injectors fic 1000, trx6 ngk spark plug, rotofab + air gulp, intercooler exchanger with electric fan from lingenfelter.
Afr commanded and read 11,1 / 11,5
Avance 15
Supergarger 14 /15 psi
iat 68 to 86 max
On a 2012 zl1 with 13000miles wich run 98octan
All original for the other parts

The breaking : piston 7 and 8 melted, spark plug also, sleeve on cylinder 8 has a loss of material 1mm deep 1cm long.

Is someone has faced this kind of problem with similar mod, I want to understand what happened. What solutions did you find.
Thank you

m1key1111 · 03-23-2016, 06:53 AM

I'm sorry for the loss of your engine. Did you datalog your session while on the dyno? If so, can you upload it so it can be reviewed? Do you have a copy of your tune to upload so it can be reviewed?

There are so many other variables like oil pressure, etc it would be almost impossible to diagnose remotely. The commanded air fuel ratio seems fine, the advance is very low for that boost level with 98 octane too, it doesn't appear you should have a problem. With it being the rear cylinders I would only suspect it had something to do fuel delivery (volume, pressure, etc).

trasherseb · 03-23-2016, 07:26 AM

92 octane not 98

trasherseb · 03-23-2016, 07:41 AM

A road test was done in the morning before dyno everything was fine we checked 988Nm(728ftlt) of torque on car calculator.

Gearheaded · 03-23-2016, 08:10 AM

You ran the engine hard without a tune?

trasherseb · 03-23-2016, 08:13 AM

It was already tune

Whos_Drivin · 03-23-2016, 09:02 AM

Fuel pressure seems to be the wild card lately. Some are adding BAP around 625 rwhp and others are getting away with close to 750 rwhp on stock pump and injectors.

robrocketanski · 03-23-2016, 09:07 AM

Quote:

Originally Posted by Whos_Drivin

Fuel pressure seems to be the wild card lately. Some are adding BAP around 625 rwhp and others are getting away with close to 750 rwhp on stock pump and injectors.

I have noticed this too. I wonder about it being a nice way for shops to sell an additional part but it also makes sense that the stock pump wouldn't be enough for around double the injector capacity.

trasherseb · 03-24-2016, 04:57 AM

how can I send you the data files ?

m1key1111 · 03-24-2016, 08:45 AM

If you have the tune and datalog in hptuners please email it to me @ mb3689@gmail.com and I'll take a look at it!

trasherseb · 03-24-2016, 01:12 PM

It s done thank you.

jayno20 · 03-24-2016, 01:19 PM

Quote:

Originally Posted by Whos_Drivin

Fuel pressure seems to be the wild card lately. Some are adding BAP around 625 rwhp and others are getting away with close to 750 rwhp on stock pump and injectors.

That's what I thought when I read this... This might be one of those examples where he SHOULD have had a BAP.

ZO6 Bryan · 03-24-2016, 02:01 PM

Not really a wild card. I told people back in 2013 that they would have a fuel pressure drop if they increase the boost substantially. http://www.camaro5.com/forums/showthread.php?t=289332

Ex-Cobra Guy · 03-24-2016, 02:02 PM

Should be using NGK TR7IX...

6 heat range is stock....

03-23-2016, 04:16 AM	#1
trasherseb Drives: camaro zl1 black carbon sun roof Join Date: Jul 2013 Location: france Posts: 42 View My Garage	Mod turns very bad Hi guys I find myself'in front of engine breaking after'mod and prog on the dyno. Supercharger pulley 2,35, Injectors fic 1000, trx6 ngk spark plug, rotofab + air gulp, intercooler exchanger with electric fan from lingenfelter. Afr commanded and read 11,1 / 11,5 Avance 15 Supergarger 14 /15 psi iat 68 to 86 max On a 2012 zl1 with 13000miles wich run 98octan All original for the other parts The breaking : piston 7 and 8 melted, spark plug also, sleeve on cylinder 8 has a loss of material 1mm deep 1cm long. Is someone has faced this kind of problem with similar mod, I want to understand what happened. What solutions did you find. Thank you

03-23-2016, 08:10 AM	#5
Gearheaded Drives: 2014 SS Join Date: Apr 2015 Location: Florida Posts: 369	You ran the engine hard without a tune? __________________ Toys: 2014 SS - TSP 235/239, CAI, LT's, 12.2 @ 115 ("SLOWLY" chipping away ET) 2000 Trans Am - Bolt-ons 13.0@110 (sold) 2009 YZF R1 - Race bike (road course)(totaled racing) 2008 YZF R6 - Race bike (road course)(still own)

03-24-2016, 02:01 PM	#13
ZO6 Bryan Drives: 02 Z06, 95 Trans Am, 2012 ZL1 Join Date: Mar 2012 Location: Southeast Posts: 1,838 View My Garage	Not really a wild card. I told people back in 2013 that they would have a fuel pressure drop if they increase the boost substantially. http://www.camaro5.com/forums/showthread.php?t=289332 __________________ Bryan 2018 ZL1 M6

03-23-2016, 06:53 AM	#2
m1key1111 Drives: 2012 ZL1 Join Date: Nov 2015 Location: Atlanta GA Posts: 88	I'm sorry for the loss of your engine. Did you datalog your session while on the dyno? If so, can you upload it so it can be reviewed? Do you have a copy of your tune to upload so it can be reviewed? There are so many other variables like oil pressure, etc it would be almost impossible to diagnose remotely. The commanded air fuel ratio seems fine, the advance is very low for that boost level with 98 octane too, it doesn't appear you should have a problem. With it being the rear cylinders I would only suspect it had something to do fuel delivery (volume, pressure, etc).

03-23-2016, 07:26 AM	#3
trasherseb Drives: camaro zl1 black carbon sun roof Join Date: Jul 2013 Location: france Posts: 42 View My Garage	92 octane not 98

03-23-2016, 07:41 AM	#4
trasherseb Drives: camaro zl1 black carbon sun roof Join Date: Jul 2013 Location: france Posts: 42 View My Garage	A road test was done in the morning before dyno everything was fine we checked 988Nm(728ftlt) of torque on car calculator.

03-23-2016, 08:13 AM	#6
trasherseb Drives: camaro zl1 black carbon sun roof Join Date: Jul 2013 Location: france Posts: 42 View My Garage	It was already tune

03-23-2016, 09:02 AM	#7
Whos_Drivin Drives: '12 Camaro ZL1, '16 Silverado Z71 Join Date: Mar 2012 Location: Blaine, MN Posts: 846	Fuel pressure seems to be the wild card lately. Some are adding BAP around 625 rwhp and others are getting away with close to 750 rwhp on stock pump and injectors.

03-24-2016, 04:57 AM	#9
trasherseb Drives: camaro zl1 black carbon sun roof Join Date: Jul 2013 Location: france Posts: 42 View My Garage	how can I send you the data files ?

03-24-2016, 08:45 AM	#10
m1key1111 Drives: 2012 ZL1 Join Date: Nov 2015 Location: Atlanta GA Posts: 88	If you have the tune and datalog in hptuners please email it to me @ mb3689@gmail.com and I'll take a look at it!

03-24-2016, 01:12 PM	#11
trasherseb Drives: camaro zl1 black carbon sun roof Join Date: Jul 2013 Location: france Posts: 42 View My Garage	It s done thank you.

03-24-2016, 02:02 PM	#14
Ex-Cobra Guy Drives: 2013 CTS-V Wagon & 2010 SS (hers) Join Date: Jun 2008 Location: Arizona Posts: 90	Should be using NGK TR7IX... 6 heat range is stock....