My STS dyno 8psi with meth - Page 10 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SC2150 · 01-19-2012, 10:54 AM

Stock pistons are fine to 10-12PSI, but the issue is accuarate wideband monitoring. Cant be done with a narrow band and it only takes a few seconds of detonation to melt a piston. Were running very conservative at 7# right now and will increase boost incrementally tonight at the track to be as carefull as possible. So far were staying right around 11.02 as the leanest.

That said, our systems were doing we are limiting to 6# for safety.

On the V8 swaps, we put LS motors in every make/model you can think of....but the cost on a Gen5 camaro is high due to the harness, ECU, suspension, trans, etc.

Sorry to hear cj.

Ship it here and we can build your LLT and tune it to run and live....

camslambam · 01-19-2012, 11:03 AM

So... you didn't have a wideband active AFR gauge.

And you're not sure if your meth was working?

Wideband would've detected a bad tune easily and the meth should've warded off detonation....

cjt037 · 01-19-2012, 11:27 AM

I did but I left it on narrow band and meth was working fine. But never the less just ordered the lsx

Ice Demon · 01-19-2012, 01:34 PM

So you ordered 454 correct or did u order the 376?? I will be following this very closely because I want to put a lsx 454 in mine as well ethier that or twin turbos. Maybe both.

camslambam · 01-19-2012, 01:53 PM

Who setup your turbo?

cjt037 · 01-19-2012, 04:50 PM

The 376 after research it seems alot stronger

Ice Demon · 01-19-2012, 05:31 PM

Yea the 376 is a really good engine for the price. It's basically a forged ls3

bmorecam · 01-19-2012, 06:11 PM

Quote:

Originally Posted by cjt037

I did but I left it on narrow band and meth was working fine. But never the less just ordered the lsx

Can't wait to see this

Amarr014 · 01-19-2012, 07:41 PM

how much has to be done to put a lsx376 in our v6?

cjt037 · 01-19-2012, 07:50 PM

Alot to say the least. Ecu overhaul tranny dfivetrain axel. Just to start

Orange5thGen · 01-19-2012, 08:32 PM

Same for me IPS is waiting on this other tuning option with my Convertible so ......It will be dropped off to them very shortly!

Had to stay at 7 and even there it was an ugly WOT AFR..... The tune is the issue and we need to get it where the fuel will work with our setups, my car didn't blow up and it worked fine for the last year of testing, now this winter will be hopefully the last upgrade to the car...We will see can't wait!

Quote:

Originally Posted by GretchenGotGrowl

I've been worried about this for a while. Seems people are pushing these motors pretty hard dispite the known issues with the fueling system. Meth is great for adding a few more ponies because it lowers IATs and increases octane. When you also tune it to compensate for a lack of fuel then you are asking for trouble. You have to invest in a lot of failsafe things to be safe. This is true for any motor, not just the LLT.

We haven't been able to SAFELY tune Gretchen for more than 7 psi, even when adding 100% meth. I'd rather wait until we have a good fueling solution than push it to 9-10 psi.

probee773 · 01-20-2012, 07:13 AM

Quote:

Originally Posted by SC2150

Stock pistons are fine to 10-12PSI, but the issue is accuarate wideband monitoring.

Tracy, what is your guesstimate of the crank and RWHP that we could get out of the LLT at 10 - 12 psi?

cjt037 · 01-20-2012, 08:22 AM

if the pistons can hold it the fuel system couldn't.

probee773 · 01-20-2012, 08:30 AM

That is true, let me rephrase...

How much crank and RWHP with 10 - 12 psi and an upgraded fuel pump?

01-19-2012, 11:27 AM	#129
cjt037 boost+v6=me=:) Drives: Turbo'd 6er Join Date: Apr 2011 Location: Crestwood ky Posts: 389 View My Garage	I did but I left it on narrow band and meth was working fine. But never the less just ordered the lsx __________________ http://www.camaro5.com/forums/showthread.php?t=185528 435.7 RWHP 405 RWTQ JUST A LITTLE V6... Try me

01-19-2012, 04:50 PM	#132
cjt037 boost+v6=me=:) Drives: Turbo'd 6er Join Date: Apr 2011 Location: Crestwood ky Posts: 389 View My Garage	The 376 after research it seems alot stronger __________________ http://www.camaro5.com/forums/showthread.php?t=185528 435.7 RWHP 405 RWTQ JUST A LITTLE V6... Try me

01-19-2012, 07:41 PM	#135
Amarr014 BAD BEE Drives: very fast! Join Date: May 2011 Location: Daytona Posts: 686 View My Garage	how much has to be done to put a lsx376 in our v6? __________________ 2011 V6 LS M6 \| straight piped \| HIDs \| Injen CAI\| 75 Shot NX nitrous\|Trifecta Tune\|RX ported TB,IM and matched heads, Isolator\| RX Catch Can \| AAC Red Halos \| AAC Red interior lighting \| Red bowties \| 15% tint \| Tinted Tails \| SS wheels and tires \| SS tips\| Cat delete\| Arc audio 10's\| ******** box\|Scosche&kenwood\|

01-19-2012, 07:50 PM	#136
cjt037 boost+v6=me=:) Drives: Turbo'd 6er Join Date: Apr 2011 Location: Crestwood ky Posts: 389 View My Garage	Alot to say the least. Ecu overhaul tranny dfivetrain axel. Just to start __________________ http://www.camaro5.com/forums/showthread.php?t=185528 435.7 RWHP 405 RWTQ JUST A LITTLE V6... Try me

01-20-2012, 08:22 AM	#139
cjt037 boost+v6=me=:) Drives: Turbo'd 6er Join Date: Apr 2011 Location: Crestwood ky Posts: 389 View My Garage	if the pistons can hold it the fuel system couldn't. __________________ http://www.camaro5.com/forums/showthread.php?t=185528 435.7 RWHP 405 RWTQ JUST A LITTLE V6... Try me

01-19-2012, 10:54 AM	#127
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	Stock pistons are fine to 10-12PSI, but the issue is accuarate wideband monitoring. Cant be done with a narrow band and it only takes a few seconds of detonation to melt a piston. Were running very conservative at 7# right now and will increase boost incrementally tonight at the track to be as carefull as possible. So far were staying right around 11.02 as the leanest. That said, our systems were doing we are limiting to 6# for safety. On the V8 swaps, we put LS motors in every make/model you can think of....but the cost on a Gen5 camaro is high due to the harness, ECU, suspension, trans, etc. Sorry to hear cj. Ship it here and we can build your LLT and tune it to run and live....

01-19-2012, 11:03 AM	#128
camslambam Account Suspended Drives: 2010 SS, 06 SRT10 Ram Join Date: Nov 2011 Location: C. America Posts: 1,658	So... you didn't have a wideband active AFR gauge. And you're not sure if your meth was working? Wideband would've detected a bad tune easily and the meth should've warded off detonation....

01-19-2012, 01:34 PM	#130
Ice Demon Drives: 2010 Camaro SS Join Date: Oct 2011 Location: Memphis, TN Posts: 1,098 View My Garage	So you ordered 454 correct or did u order the 376?? I will be following this very closely because I want to put a lsx 454 in mine as well ethier that or twin turbos. Maybe both.

01-19-2012, 01:53 PM	#131
camslambam Account Suspended Drives: 2010 SS, 06 SRT10 Ram Join Date: Nov 2011 Location: C. America Posts: 1,658	Who setup your turbo?

01-19-2012, 05:31 PM	#133
Ice Demon Drives: 2010 Camaro SS Join Date: Oct 2011 Location: Memphis, TN Posts: 1,098 View My Garage	Yea the 376 is a really good engine for the price. It's basically a forged ls3

01-20-2012, 08:30 AM	#140
probee773 Drives: 2011 Camaro 1LT RS 6MT Double Black Join Date: Sep 2010 Location: Florida Posts: 95	That is true, let me rephrase... How much crank and RWHP with 10 - 12 psi and an upgraded fuel pump?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
MarylandSpeed DYNO TESTED: Diablosport Predator Canned Tune on 2010 SS A6	MarylandSpeed	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	27	05-18-2013 10:01 PM
What is that dip in my dyno sheet?	matt@lsrperformance.com	V8 Bolt-Ons & Tunes	0	11-18-2011 11:32 AM
My latest DYNO the good and the bad..	bmorecam	Camaro V6 LLT Engine, Exhaust, and Bolt-Ons	28	10-14-2011 08:13 AM
STS Twin Turbo Kits Coming Soon!!!	tbyrne	Forced Induction	18	10-19-2009 10:06 AM