LS3 1.85 Rocker Test - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

lazerlemonta · 09-18-2018, 08:27 AM

I went Friday and swapped rockers on the dyno just to see what was up with the dip in my curve. Conclusion is the PSI1511 just doesnt have enough seat pressure to control the rocker. Hope this info helps someone in the future.

62nalide · 09-18-2018, 08:31 AM

Yeah IDK, I would not consider that ratio if its doing that.

InFiD3ViL · 09-18-2018, 10:33 PM

So, what's the plan?

acammer · 09-19-2018, 08:56 AM

Interesting - better till it's worse. Interested to see what your next move is.

christianchevell · 09-19-2018, 09:06 AM

There was a guy on here who swore by the yellow terras and had a stock mainly 1le until he wrecked it with some pretty good dyno numbers just by changing the ratio which does increase the net lift and duration a little. I believe he got it with bolt ons up to about 440 hp +. He unfortunately wrecked it and then I think moved on to a corvette, had a thread showing his wreck like no other vehicle around...WTF and yes he had aftermarket springs I believe, different springs would be in order I believe maybe you could find the threads from him to use the rockers. Good Luck Hey you might be that guy....LOL

lazerlemonta · 09-21-2018, 07:41 AM

Quote:

Originally Posted by christianchevell

There was a guy on here who swore by the yellow terras and had a stock mainly 1le until he wrecked it with some pretty good dyno numbers just by changing the ratio which does increase the net lift and duration a little. I believe he got it with bolt ons up to about 440 hp +. He unfortunately wrecked it and then I think moved on to a corvette, had a thread showing his wreck like no other vehicle around...WTF and yes he had aftermarket springs I believe, different springs would be in order I believe maybe you could find the threads from him to use the rockers. Good Luck Hey you might be that guy....LOL

I am that guy lol Both of my cars have made 470STD or 450SAE (rough numbers) This dyno was with in a small percentage of the other one i use. I am going to move on to cam only and go for 9s next. I have a rental in November so I may swap valve springs and go for the stock cam stock head record. If it keeps raining like it has I wont have to worry about it until spring.

christianchevell · 09-22-2018, 12:40 PM

Yup springs wear out ..good luck you , yup I was right...bummer on the Camaro.

lazerlemonta · 09-24-2018, 07:09 AM

Quote:

Originally Posted by christianchevell

Yup springs wear out ..good luck you , yup I was right...bummer on the Camaro.

Spring are not wore out. I have had the same dip since i started with the set up on my 1LE. Just spent time and effort making sure it is a combination of valve timing events and needs more spring.

09-18-2018, 08:27 AM	#1
lazerlemonta Drives: 2010 C6 1LT Join Date: Dec 2011 Location: Virginia Posts: 877 View My Garage	LS3 1.85 Rocker Test I went Friday and swapped rockers on the dyno just to see what was up with the dip in my curve. Conclusion is the PSI1511 just doesnt have enough seat pressure to control the rocker. Hope this info helps someone in the future. Attached Images __________________ 2010 C6 JET STREAM BLUE BOLT ONS TO THE EXTREME, GPI 281cc HEADS, Darth_V8r SPEC CAM, FAST 102 INTAKE, CRANK SCRAPER, QUARTER MASTER 7.25" CLUTCH, RPM 3.90 STAGE II DIF, Z51 Gear Set AND E85 Best ET 10.58 @ 131.8 stock heads and stock cam 453/445 SAE 10.62@134.82 GPI 281CC Heads, SS4 Cam and X1 Intake Best 1/8 6.80@105.75 Best MPH 134.82

09-18-2018, 08:31 AM	#2
62nalide Drives: 2013 SS Join Date: May 2013 Location: DFW Posts: 4,102	Yeah IDK, I would not consider that ratio if its doing that. __________________ https://frankensteined.net/ Martin@Frankensteined.net

09-18-2018, 10:33 PM	#3
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,575	So, what's the plan? __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

09-19-2018, 08:56 AM	#4
acammer GPI Sales Consultant Drives: 2011 Camaro 2SS SGM Join Date: Jul 2016 Location: Weedsport, NY Posts: 2,794 View My Garage	Interesting - better till it's worse. Interested to see what your next move is. __________________ GPI Max Package 2.0: Brodix BR7 heads/GPI porting, MAX3 cam, ST2116LSR, BSR Max Lift rockers, LS7 LSXR with 103mm TB, Vararam OTR, Mcleod RXT, G-Force/Strange 9" IRS setup with 4.63 gear. 551whp, 11.1@124mph. *Got a question about a GPI product? Feel free to shoot me a message!*

09-19-2018, 09:06 AM	#5
christianchevell old school chevy rodder Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012 Location: Oregon Posts: 5,587 View My Garage	There was a guy on here who swore by the yellow terras and had a stock mainly 1le until he wrecked it with some pretty good dyno numbers just by changing the ratio which does increase the net lift and duration a little. I believe he got it with bolt ons up to about 440 hp +. He unfortunately wrecked it and then I think moved on to a corvette, had a thread showing his wreck like no other vehicle around...WTF and yes he had aftermarket springs I believe, different springs would be in order I believe maybe you could find the threads from him to use the rockers. Good Luck Hey you might be that guy....LOL __________________ 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop

09-22-2018, 12:40 PM	#7
christianchevell old school chevy rodder Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012 Location: Oregon Posts: 5,587 View My Garage	Yup springs wear out ..good luck you , yup I was right...bummer on the Camaro. __________________ 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop