What size upper pulley? - Page 5 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

JamesZL1 · 08-24-2014, 11:00 PM

I recently did some mods to my 2013 ZL1. Added 2" TSP LT Headers, TSP X-Pipe with stock mufflers, LS3-B blower cam and a Metco 19.6% Crank pulley. The Pulley states it makes an additional 4.5 lbs. of boost, but with the Cam and exhaust, I am only up to 10.5 Lbs. of boost (or 1.5 Lb. over stock). So my motor is more efficent, I lost some boost, but the motor makes up for it in efficency.

ss/rs/378 · 08-25-2014, 10:08 AM

Quote:

Originally Posted by JamesZL1

I recently did some mods to my 2013 ZL1. Added 2" TSP LT Headers, TSP X-Pipe with stock mufflers, LS3-B blower cam and a Metco 19.6% Crank pulley. The Pulley states it makes an additional 4.5 lbs. of boost, but with the Cam and exhaust, I am only up to 10.5 Lbs. of boost (or 1.5 Lb. over stock). So my motor is more efficent, I lost some boost, but the motor makes up for it in efficency.

Yes I have heard of guys lossing boost but gaining horsepower though better airflow being more efficent thats what my tuner and mechanic both told me!!!

mdp0428 · 09-29-2014, 04:09 PM

Got my car back today finally after linginfelter was on back order for a month. Ended up doing a few extra things while i was there.

-Cooling- huge heat exchanger in the front along with the added coolant reservoir to hopefully keep that thing a little cooler and then a 160 degree thermostat.

-Boost I did the 2.33 pulley and the solid isolator coupling. running 26% over stock right now at about 17lbs of boost. Hopefully I can get the boost numbers down over the next few months with some long tube headers.

-ID850 injectors

-The good stuff... Stock Dyno was 481 hp and 482tq at the wheels. After the mods and a dyno tune turned out to be 586 hp and 571tq... Not bad for a few mods and this thing whines now and I LOVE IT!!

Next up is a cam, exhaust, and a little shot of nitrous... Christmas present maybe?

08-24-2014, 11:00 PM	#57
JamesZL1 Drives: 2013 ZL1 A6 Camaro, 2015 C7 A6 Z51 Join Date: Apr 2014 Location: Oklahoma Posts: 396	I recently did some mods to my 2013 ZL1. Added 2" TSP LT Headers, TSP X-Pipe with stock mufflers, LS3-B blower cam and a Metco 19.6% Crank pulley. The Pulley states it makes an additional 4.5 lbs. of boost, but with the Cam and exhaust, I am only up to 10.5 Lbs. of boost (or 1.5 Lb. over stock). So my motor is more efficent, I lost some boost, but the motor makes up for it in efficency. __________________ Roto-Fab CAI, Texas Speed Headers, Texas Speed X-Pipe, Texas Speed LS3-B Blower Cam, Metco 9.10" Crank Pulley, Metco 2.5 Upper Pulley, ID 850 Injectors, LPE Ported Throttle Body, Alky Control Methanol kit, E2 Catch Can, 610HP / 608 Torque.

09-29-2014, 04:09 PM	#59
mdp0428 Drives: 2013 ZL1 Join Date: Dec 2011 Location: Secret Posts: 14	Got my car back today finally after linginfelter was on back order for a month. Ended up doing a few extra things while i was there. -Cooling- huge heat exchanger in the front along with the added coolant reservoir to hopefully keep that thing a little cooler and then a 160 degree thermostat. -Boost I did the 2.33 pulley and the solid isolator coupling. running 26% over stock right now at about 17lbs of boost. Hopefully I can get the boost numbers down over the next few months with some long tube headers. -ID850 injectors -The good stuff... Stock Dyno was 481 hp and 482tq at the wheels. After the mods and a dyno tune turned out to be 586 hp and 571tq... Not bad for a few mods and this thing whines now and I LOVE IT!! Next up is a cam, exhaust, and a little shot of nitrous... Christmas present maybe?