Help me get an extra few horsepower - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

damian559 · 09-09-2015, 01:47 AM

My local shop is hosting a dyno day at the end of October and made a bet with my friend that I'll make 500rwhp or more. When my car was first tuned with the cam back in April it made 498rwhp on a cool morning. I had my valve springs and retainers swapped out last week and we put it on the dyno and it made 489, but this was after the car was taken for a test drive and had been idling for 15 minutes before it made a pull on the dyno. It was also over 100 degrees outside.

I know these numbers are so close to each other and don't mean much but this is just for a bet between two friends. What are a few little tips to get an extra few horsepower.

1. Should my car be cool? Warmed up for a few minutes?
2. Should I put in Chevron 91 octane and put in some octane booster?
3. Put in some unleaded race gas? 100, 101 octane?

I'm going to talk to the shop owner to see if he has any ideas also, but if you guys can help me out that'd be great.

Thanks!

Pushrod Pete · 09-09-2015, 01:56 AM

how about a ported throttle body? not sure if it'll result in the extra HP you're looking for, but it can't hurt, right?

Kings2010 · 09-09-2015, 07:09 AM

Bag of ice on the intake manifold prior to getting on the dyno. Get it REALLY cold.

mrvenicess · 09-09-2015, 07:35 AM

Race gas and up the timing a few degrees.

JDP Sales · 09-09-2015, 12:35 PM

+1 on the VMAX ported TB if you don't have one already.

Kind regards,

-Adrian
888.308.6007

JantzenOKC · 09-09-2015, 12:38 PM

Slide the dyno operator a 20 to fudge the dyno a bit?

IneedAZ · 09-09-2015, 01:08 PM

Quote:

Originally Posted by JantzenOKC

Slide the dyno operator a 20 to fudge the dyno a bit?

Isnt that the same thing you did on your 12.1 pass?

Badfinger · 09-09-2015, 01:46 PM

JET Performance Underdrive Pulley Kits 90105

JET Performance underdrive pulley kits add 10-13 HP by reducing the drag placed on the engine to drive the accessories such as the A/C, power steering, and water pump.

JantzenOKC · 09-09-2015, 01:48 PM

Quote:

Originally Posted by IneedAZ

Isnt that the same thing you did on your 12.1 pass?

If that was the case it would've been an 11.9

spadz93 · 09-09-2015, 01:53 PM

Underdrive pulley, ported throttle body, port your heads, intake manifold, etc. hell you're right on the cusp of 500rwhp, you might as well get a goody to put yourself over

c5z28 · 09-09-2015, 02:08 PM

What do you previous dyno results look like? Maybe there is something hiding in them.
Do you have a graph?
When I dynoed my car I made 500.7hp from about 5000 to 6050.. It showed me I am leaving something on top, which an intake swap helped with. With the cam I have it should have peaked around 6000, not flat lined.

casper sc/1ss/rs · 09-09-2015, 02:09 PM

Quote:

Originally Posted by JantzenOKC

Slide the dyno operator a 20 to fudge the dyno a bit?

Slip him a 50 and go for 600

climb-101 · 09-09-2015, 02:38 PM

rotating mass makes s big differance, x2 on light weight rear tires/rims.

I know on my chevelle we picked up about 30hp by taking the belt off the front and didn't run this water pump or power steering.

another thing is run it a quart low on oil, less oil for the crank to half to run through

sscamaro · 09-10-2015, 11:33 AM

We need to know what you have already done to your car. Just a cam is not going to get you there. Ported throttle body doesn't give more HP. Gives better throttle response.

09-09-2015, 01:47 AM	#1
damian559 Drives: 2015 1SS, 1LE, Recaro, NPP Join Date: Apr 2014 Location: Fresno, CA Posts: 927	Help me get an extra few horsepower My local shop is hosting a dyno day at the end of October and made a bet with my friend that I'll make 500rwhp or more. When my car was first tuned with the cam back in April it made 498rwhp on a cool morning. I had my valve springs and retainers swapped out last week and we put it on the dyno and it made 489, but this was after the car was taken for a test drive and had been idling for 15 minutes before it made a pull on the dyno. It was also over 100 degrees outside. I know these numbers are so close to each other and don't mean much but this is just for a bet between two friends. What are a few little tips to get an extra few horsepower. 1. Should my car be cool? Warmed up for a few minutes? 2. Should I put in Chevron 91 octane and put in some octane booster? 3. Put in some unleaded race gas? 100, 101 octane? I'm going to talk to the shop owner to see if he has any ideas also, but if you guys can help me out that'd be great. Thanks! __________________ 2015 Summit White 1SS, 1LE, Recaros, NPP 498 RWHP 447 RWTQ (Motor) 647 RWHP 723 RWTQ (150 Shot) 12.1 @ 117 (Motor) 11.7 @ 129 (Nitrous) Nitrous Outlet Single Nozzle Kit \| Stand Alone Fuel Cell w/ C16 \| Custom Grind Cam \| Stainless Power 1 7/8 LT Headers \| CAI Intake \| ATI Super Damper \| BMR Trailing Arms & Toe Links \| Prothane Polyurethane Sub-frame Bushings \| JDP Upper Control Arm Bushings \| MT Drag Radials \| Tuned by SS Motorsports Youtube Channel: Click Here

09-09-2015, 12:38 PM	#6
JantzenOKC Drives: '13 2LT/RS Twin Turbo Join Date: Aug 2012 Location: Edmond, Oklahoma Posts: 3,073	Slide the dyno operator a 20 to fudge the dyno a bit? __________________ 3.6L Twin Turbo V6 Garrett GT28 turbos -- Jacfab forged connecting rods -- Diamond forged pistons(10.5:1) -- Alky Control Methonal Injection -- CircleD 2E triple disc torque converter -- BMR suspension 10.75 @ 131mph

09-09-2015, 01:53 PM	#10
spadz93 BUMBL Z Drives: 2015 ZL1 Join Date: Nov 2013 Location: Northern NJ Posts: 2,573 View My Garage	Underdrive pulley, ported throttle body, port your heads, intake manifold, etc. hell you're right on the cusp of 500rwhp, you might as well get a goody to put yourself over __________________ Current: 2015 ZL1 M6, Rotofab Intake, LS3 throttle body, 2.55 Upper/9.17 Lower w/ Idler Relocation, DMS Reinforced Brick, ID1050X, 1 7/8" Headers, ProSpeed HX/Reservoir, DSX Aux Pump/Flex Fuel Sensor, E85, McLeod RXT, BMR 1" Drop, Tuned by Pat G Past: 2010 2SS, some bolt ons, 415rwhp/400rwtq

09-09-2015, 02:08 PM	#11
c5z28 Banned Drives: Camaro, Corvette, c10 pickup Join Date: Jul 2013 Location: Las Vegas Posts: 81	What do you previous dyno results look like? Maybe there is something hiding in them. Do you have a graph? When I dynoed my car I made 500.7hp from about 5000 to 6050.. It showed me I am leaving something on top, which an intake swap helped with. With the cam I have it should have peaked around 6000, not flat lined. Last edited by c5z28; 09-09-2015 at 03:39 PM.

09-10-2015, 11:33 AM	#14
sscamaro Drives: 2010 2SS, 2017 Silverado LTZ Join Date: Jan 2007 Location: Denver,PA Posts: 3,195 View My Garage	We need to know what you have already done to your car. Just a cam is not going to get you there. Ported throttle body doesn't give more HP. Gives better throttle response. __________________ 2010 2SS/RS Victory Red, MN6, 1-7/8 Kooks LT Headers, SLP Axle Back, Edelbrock E-Force S/C, ZL1 Fuel Pump, 72# Injectors, JRE fuel rail upgrade, Roto-Fab CAI, Elite Catch Can, Billet Hurst Shifter, DSS 1000HP axles, Spohn Trailing Arms, Toe Links, Lower Control Arms. Chrome American Racing Torq-Thrust wheels. 546/rwhp & 522/rwtq & 10.9# boost Tune by Jeremy Formato.

09-09-2015, 01:56 AM	#2
Pushrod Pete Drives: Camaro 1LE Join Date: Mar 2015 Location: Nor Cal Posts: 489	how about a ported throttle body? not sure if it'll result in the extra HP you're looking for, but it can't hurt, right?

09-09-2015, 07:09 AM	#3
Kings2010 Drives: 2005 C6, 2013 ZL1 2020 Ram Cummins Join Date: Jul 2015 Location: Sugar Land, Texas Posts: 192	Bag of ice on the intake manifold prior to getting on the dyno. Get it REALLY cold.

09-09-2015, 07:35 AM	#4
mrvenicess Drives: 2013 CRT ZL1 auto Join Date: May 2010 Location: Venice Fl Posts: 1,443 View My Garage	Race gas and up the timing a few degrees.

09-09-2015, 12:35 PM	#5
JDP Sales Drives: Chevys at the limit Join Date: Nov 2010 Location: SLC, UT Posts: 9,621	+1 on the VMAX ported TB if you don't have one already. Kind regards, -Adrian 888.308.6007

09-09-2015, 01:46 PM	#8
Badfinger Drives: 2010 2SS Join Date: Mar 2010 Location: Dayton, Ohio Posts: 387 View My Garage	JET Performance Underdrive Pulley Kits 90105 JET Performance underdrive pulley kits add 10-13 HP by reducing the drag placed on the engine to drive the accessories such as the A/C, power steering, and water pump.

09-09-2015, 02:38 PM	#13
climb-101 Drives: 2010 2ss Join Date: Jul 2015 Location: montana Posts: 76	rotating mass makes s big differance, x2 on light weight rear tires/rims. I know on my chevelle we picked up about 30hp by taking the belt off the front and didn't run this water pump or power steering. another thing is run it a quart low on oil, less oil for the crank to half to run through