CAM upgrade quagmire **NAVIGATED** - Page 9

BlackbeastSS2 · 08-12-2020, 10:44 AM

Quote:

Originally Posted by oldman

What cam in the COPO?

Depends which COPO.

TECH SPECS:
Displacement: 427 cu in (7.0L)
Compression Ratio: 13.5:1
Cylinder Block: LSX iron
Bore x Stroke (in): 4.125 x 4.000
Crankshaft: Forged steel
Connecting Rods: Forged steel
Pistons: Forged dome
Cylinder Heads: LSX-LS7 aluminum six-bolt
Induction: Natural
Intake Manifold: Holley Hi-Ram
Camshaft Type: Hydraulic roller
Camshaft Lift (int./exh.): .630/.630-inch
Camshaft Duration (int./exh.): 233/276 deg. @ .050-inch

https://www.gmperformancemotor.com/category/COPOE.html

Darth Martel · 08-12-2020, 11:09 AM

Wanted to update with my cam specs.

LT1-LT4 SMOOTH IDLE BLOWER CAM, 218/226. .635/.635, 116 LSA 110 +32% FUEL LOBE

Also, it sounds like JRE is going to hook me up with the Johnson lifters. So, that's encouraging.

oldman · 08-12-2020, 12:03 PM

so the lobe will need to be shimmed in, lots of right ups on that.

L78toLT1 · 08-12-2020, 01:25 PM

You'll like that cam. I've been running it, with ls7 lifters, for the past 18 months or so. It pulls hard deep into the 6000's. I usually shift at 68 - 6900. It's very stealthy too, idles almost like stock.
Ted has done nearly every cam/Pump combination and the shim he tells you to use will likely be spot on. I checked mine just to be sure, and Ted's recommendation was perfect.

Darth Martel · 08-12-2020, 07:32 PM

The shim should already be in. Guess I just need to check and make sure.

L78toLT1 · 08-13-2020, 06:45 AM

Quote:

Originally Posted by Darth Martel

The shim should already be in. Guess I just need to check and make sure.

Given that your motor has already been running, albeit with a collapsed lifter, your pump is probably shimmed correctly.

oldman · 08-13-2020, 07:52 AM

You can look at the shim, if there are no grind marks on it, I HIGHLY doubt it was done.

Darth Martel · 08-13-2020, 11:06 AM

I contacted my installer and the shim was included in the kit and he installed it. I should be good.

oldman · 08-13-2020, 11:26 AM

The shim needs to be ground down, you can't just put it on. No grinds = BAD

BlueinTN · 08-13-2020, 12:02 PM

Quote:

Originally Posted by Darth Martel

The lifters I was supplied were TopLine 345A 2281S

Or as I call them... GARBAGE

if google tells me right those want a tight lash because of the S designation?

..and made in America with American steel they cant be that bad.

Texas speed makes/grinds there own cams and has a spin tron thats like 2 millions dollars worth of equipment right there. I would still call them and ask some questions. They must know something or they blew alotta money for nothing.

Darth Martel · 08-13-2020, 02:25 PM

It's quite possible the Top Line lifters weren't the true source ofbthe problem. The problem is that Texas Speed provided them.as a substitute to JRE in place of the standard LS7 lifters provided in the kit that were never tested and verified. If those Top Line lifters have a tight tolerance, they should never be used as a substitute for lifters that have loose tolerance requirements. Namely, because the preload will be different, thus the pushrods supplied won't work. Therefore, the kit JRE provided, was going to fail regardless, simply because they had a different lifter than what they normally provide.

The more I'm thinking about this, the more pissed I'm getting.

Quote:

Originally Posted by BlueinTN

if google tells me right those want a tight lash because of the S designation?

..and made in America with American steel they cant be that bad.

Texas speed makes/grinds there own cams and has a spin tron thats like 2 millions dollars worth of equipment right there. I would still call them and ask some questions. They must know something or they blew alotta money for nothing.

6spdhyperblue · 08-13-2020, 03:21 PM

Did you see what preload they were installed at vs the manufacturer spec?

KingLT1 · 08-13-2020, 04:01 PM

Top line Hy-lift are the same thing as the Hy-lift Johnson I mentioned earlier. They are made in Muskegon, Michigan. From what I see the call for .030 preload (2148se)depending on which version you received. IF you have the actual part number I could find more info.

Darth Martel · 08-13-2020, 04:03 PM

No, I have no idea. Whatever the pushrods that came with the kit is what was used. And I don't know what length those were.

08-12-2020, 11:09 AM	#114
Darth Martel Darth Martel Drives: Black 1SS with 20% tinted windows Join Date: May 2009 Location: Bizzaroland Posts: 1,496	Wanted to update with my cam specs. LT1-LT4 SMOOTH IDLE BLOWER CAM, 218/226. .635/.635, 116 LSA 110 +32% FUEL LOBE Also, it sounds like JRE is going to hook me up with the Johnson lifters. So, that's encouraging. __________________ 2016 Black 1SS w/ MRC, low-gloss black wheels, auto trans. Self-created custom Dark Knight Edition accents. Rotofab CAI with dry filter and sound tube delete, PRAY ported intake manifold and throttle body, Texas Speed cam, Stainless Works headers and exhaust, Skid Mark garage E85 kit, JMS fuel pump voltage booster, Circle D torque converter. Custom E85/mod tune by Jannetty Racing.

08-12-2020, 12:03 PM	#115
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,316	so the lobe will need to be shimmed in, lots of right ups on that. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

08-12-2020, 01:25 PM	#116
L78toLT1 Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017 Location: North Ga Posts: 1,786	You'll like that cam. I've been running it, with ls7 lifters, for the past 18 months or so. It pulls hard deep into the 6000's. I usually shift at 68 - 6900. It's very stealthy too, idles almost like stock. Ted has done nearly every cam/Pump combination and the shim he tells you to use will likely be spot on. I checked mine just to be sure, and Ted's recommendation was perfect. __________________ Baby Blue 2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned

08-12-2020, 07:32 PM	#117
Darth Martel Darth Martel Drives: Black 1SS with 20% tinted windows Join Date: May 2009 Location: Bizzaroland Posts: 1,496	The shim should already be in. Guess I just need to check and make sure. __________________ 2016 Black 1SS w/ MRC, low-gloss black wheels, auto trans. Self-created custom Dark Knight Edition accents. Rotofab CAI with dry filter and sound tube delete, PRAY ported intake manifold and throttle body, Texas Speed cam, Stainless Works headers and exhaust, Skid Mark garage E85 kit, JMS fuel pump voltage booster, Circle D torque converter. Custom E85/mod tune by Jannetty Racing.

08-13-2020, 07:52 AM	#119
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,316	You can look at the shim, if there are no grind marks on it, I HIGHLY doubt it was done. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

08-13-2020, 11:06 AM	#120
Darth Martel Darth Martel Drives: Black 1SS with 20% tinted windows Join Date: May 2009 Location: Bizzaroland Posts: 1,496	I contacted my installer and the shim was included in the kit and he installed it. I should be good. __________________ 2016 Black 1SS w/ MRC, low-gloss black wheels, auto trans. Self-created custom Dark Knight Edition accents. Rotofab CAI with dry filter and sound tube delete, PRAY ported intake manifold and throttle body, Texas Speed cam, Stainless Works headers and exhaust, Skid Mark garage E85 kit, JMS fuel pump voltage booster, Circle D torque converter. Custom E85/mod tune by Jannetty Racing.

08-13-2020, 03:21 PM	#124
6spdhyperblue Drives: 6th gen Join Date: Aug 2013 Location: US Posts: 3,670	Did you see what preload they were installed at vs the manufacturer spec? __________________ ‘22 2SS 1LE M6 Summit White - RF, Flexfuel, LT2 intake, 95mm tb, ATI udp, VT ramair, full 28” dragpack - 11.68@122 ‘16 1SS M6 LT2 intake + boltons on DR 11.0@126+ (Sold)

08-13-2020, 04:01 PM	#125
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,793	Top line Hy-lift are the same thing as the Hy-lift Johnson I mentioned earlier. They are made in Muskegon, Michigan. From what I see the call for .030 preload (2148se)depending on which version you received. IF you have the actual part number I could find more info. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

08-13-2020, 04:03 PM	#126
Darth Martel Darth Martel Drives: Black 1SS with 20% tinted windows Join Date: May 2009 Location: Bizzaroland Posts: 1,496	No, I have no idea. Whatever the pushrods that came with the kit is what was used. And I don't know what length those were. __________________ 2016 Black 1SS w/ MRC, low-gloss black wheels, auto trans. Self-created custom Dark Knight Edition accents. Rotofab CAI with dry filter and sound tube delete, PRAY ported intake manifold and throttle body, Texas Speed cam, Stainless Works headers and exhaust, Skid Mark garage E85 kit, JMS fuel pump voltage booster, Circle D torque converter. Custom E85/mod tune by Jannetty Racing.

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