The Bat. A Whipple Build.

zepol9 · 01-01-2020, 08:19 AM

2016 SS Camaro NFG
Whipple 2.9 , LT4 HPFP , LT4 injectors, Manley pistons, Manley connecting rods,
Roto fab Big Gulp, Dsx aux fuel pump, E-85, BTR stage 2 cam kit, FTI torque converter 3200 stall. 3.625 upper pulley. pistons, connecting rods and crank being balanced.

Can anyone comment on what other things I need or any input on things I should add before buttoning her back up.

L78toLT1 · 01-01-2020, 08:58 AM

I'd throw in some ARP main studs & head bolts.

KingLT1 · 01-01-2020, 09:16 AM

ls3 front crank seal.

*Joshinator99* · 01-01-2020, 09:29 AM

Bigger throttle body

Johnny6.1 · 01-01-2020, 09:50 AM

Headers. From my readings the exhaust manifold and stock cats tend to b a choke point

KingLT1 · 01-01-2020, 10:38 AM

Stock headers are fine. The primary cat pipes are the choke point.

Eldi Z · 01-01-2020, 11:26 AM

Quote:

Originally Posted by KingLT1

Stock headers are fine. The primary cat pipes are the choke point.

From which boost / power levels do the Primary CAT pipes pose a serious restriction?

Goohead · 01-01-2020, 11:56 AM

Smaller pulley

KingLT1 · 01-01-2020, 03:54 PM

Quote:

Originally Posted by Eldi Z

From which boost / power levels do the Primary CAT pipes pose a serious restriction?

There was a member here that had stock headers with NEP cat deletes running 8psi. It made around 620whp. He went to LTH and gained 19whp. So imo the stock headers with cat deletes are not hurting much for power with most average boost builds. You would likely need to do rods, pistons, and turn the boost up before they pose being a big restriction.

Side note, Laynlo went 10.0 on bone stock exhaust with cats @ 14 psi on race gas. Toohighpsi went 9.9. So the stock exhaust isn't bad up to lets say 700whp, but the cats coming apart are what concern me and I would at least delete the primaries on anything more then 7psi or 550whp.

htxSS · 01-02-2020, 07:14 AM

Quote:

Originally Posted by zepol9

2016 SS Camaro NFG
Whipple 2.9 , LT4 HPFP , LT4 injectors, Manley pistons, Manley connecting rods,
Roto fab Big Gulp, Dsx aux fuel pump, E-85, BTR stage 2 cam kit, FTI torque converter 3200 stall. 3.625 upper pulley. pistons, connecting rods and crank being balanced.

Can anyone comment on what other things I need or any input on things I should add before buttoning her back up.

Bearings upgrade.

Eldi Z · 01-03-2020, 05:25 PM

Quote:

Originally Posted by KingLT1

There was a member here that had stock headers with NEP cat deletes running 8psi. It made around 620whp. He went to LTH and gained 19whp. So imo the stock headers with cat deletes are not hurting much for power with most average boost builds. You would likely need to do rods, pistons, and turn the boost up before they pose being a big restriction.

Side note, Laynlo went 10.0 on bone stock exhaust with cats @ 14 psi on race gas. Toohighpsi went 9.9. So the stock exhaust isn't bad up to lets say 700whp, but the cats coming apart are what concern me and I would at least delete the primaries on anything more then 7psi or 550whp.

So all-in-all it seems feasible not to touch the stock exhaust system (even leave the complete CATs array in place), if boost levels do not exceed ~ 8 pounds and ~ 550-580 RWHP?

*Joshinator99* · 01-03-2020, 08:03 PM

Quote:

Originally Posted by Eldi Z

So all-in-all it seems feasible not to touch the stock exhaust system (even leave the complete CATs array in place), if boost levels do not exceed ~ 8 pounds and ~ 550-580 RWHP?

Yep. But at much more than that you run the risk of nuking the primary cats as mentioned above by others. On my last pass of the year on 8-9 pounds and around ~630 WHP, my datalog said my drivers side cat temp was 1740 degrees...ouch lol.

KingLT1 · 01-04-2020, 09:48 AM

Quote:

Originally Posted by Eldi Z

So all-in-all it seems feasible not to touch the stock exhaust system (even leave the complete CATs array in place), if boost levels do not exceed ~ 8 pounds and ~ 550-580 RWHP?

Yes I believe most manufacturer base supercharger kits come in around 7-8psi and 550whp for a reason...and that reason is because you can bolt one on a bone stock car with no other mods and run it. When you start modding from there it becomes a slippery slope. LT4 fuel system and and exhaust mods(cat delete pipes or headers) should be considered as the next mods. Then Rotofab, bigger throttle body, and smaller pulley last.

SSLOWSS · 10-27-2020, 09:43 PM

Foes anyone have any ARP Head stud kits?
I need the 234-4343 kit with the M8 corner studs.
Any help would be greatly appreciated. That is the only thing holding up a 900hp build getting done
Sincerely Brian

01-01-2020, 08:19 AM	#1
zepol9 Drives: 2016 Camaro 2SS NGM Join Date: Jun 2014 Location: ca Posts: 210	The Bat. A Whipple Build. 2016 SS Camaro NFG Whipple 2.9 , LT4 HPFP , LT4 injectors, Manley pistons, Manley connecting rods, Roto fab Big Gulp, Dsx aux fuel pump, E-85, BTR stage 2 cam kit, FTI torque converter 3200 stall. 3.625 upper pulley. pistons, connecting rods and crank being balanced. Can anyone comment on what other things I need or any input on things I should add before buttoning her back up.

01-01-2020, 08:58 AM	#2
L78toLT1 Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017 Location: North Ga Posts: 1,810	I'd throw in some ARP main studs & head bolts. __________________ 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

01-01-2020, 09:16 AM	#3
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,661	ls3 front crank seal. __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel

01-01-2020, 09:29 AM	#4
Joshinator99 Moderator Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018 Location: New Ipswich NH Posts: 6,350	Bigger throttle body __________________ 2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, ATI 8L90, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors & BB HPFP, TooHighPSI/Katech port injection, 15” conversion 1066 WHP STD/1027 SAE, 9.10@152.5 (new times coming)

01-01-2020, 10:38 AM	#6
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,661	Stock headers are fine. The primary cat pipes are the choke point. __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel

01-01-2020, 09:50 AM	#5
Johnny6.1 Drives: Camaro 1SS 1LE Join Date: Jun 2019 Location: Nor Cal Posts: 29	Headers. From my readings the exhaust manifold and stock cats tend to b a choke point

01-01-2020, 11:56 AM	#8
Goohead Horsepower whisperer Drives: Camaro Join Date: Jun 2017 Location: MO Posts: 185	Smaller pulley

10-27-2020, 09:43 PM	#14
SSLOWSS SSLOWSS Drives: Chevy SS 2019 Join Date: Aug 2020 Location: Pittsburgh Posts: 16 View My Garage	ARP head studs Foes anyone have any ARP Head stud kits? I need the 234-4343 kit with the M8 corner studs. Any help would be greatly appreciated. That is the only thing holding up a 900hp build getting done Sincerely Brian __________________ —SSLOWSS—

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