HP Loss due to Rims/Tires? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

CamaroCowboy · 04-08-2013, 12:09 PM

I was just wondering what a normal hit would be to Wheel HP if the rims are swapped from Stock to a little bit heavier aftermarket rim and bigger tires?

Basically I am wondering if my thinking is correct or if my rims and tires were at fault because my last Dyno was 447 RWHP and 428 TQ. I Dynoed Sunday with the new wheels and tires and added a ported throttle body and intake since the last tune. My RWHP was 440 and my TQ was 454. Those numbers seem a little wierd to to me.......After I came off the dyno a guy standing there said his ris and tires cost him 30 HP so I was just wondering......

anyone have an opinion?

NinoSS · 04-08-2013, 12:17 PM

the huge jump in tq does not look right?

Rico · 04-08-2013, 12:19 PM

Where did you get it tuned at? I live in harker heights, trying to find a local tuner.

CamaroCowboy · 04-08-2013, 12:23 PM

Josh from the local Vette Club took care of me after he ported my TB and Intake! I am starting to think the Dyno was just off because I hit 447 RWHP and 428 TQ on my last dyno. Then I added an aftermarket Hood (lighter than stock), ADM Racing Scoop, Ported TB and Intake, then A bit wider rims and bigger tires. I can't beleive that i only hit 440 RWHP but with 454 TQ. The numbers just don't seem right to me.

FRSTR90 · 04-09-2013, 12:26 AM

Quote:

Originally Posted by CamaroCowboy

Josh from the local Vette Club took care of me after he ported my TB and Intake! I am starting to think the Dyno was just off because I hit 447 RWHP and 428 TQ on my last dyno. Then I added an aftermarket Hood (lighter than stock), ADM Racing Scoop, Ported TB and Intake, then A bit wider rims and bigger tires. I can't beleive that i only hit 440 RWHP but with 454 TQ. The numbers just don't seem right to me.

Did you take it to the same dyno? If so, did you run multiple runs?

Also, check this thread out..

http://www.camaro5.com/forums/showthread.php?t=267369

04-08-2013, 12:09 PM	#1
CamaroCowboy Drives: 2013 Chevy Truck Join Date: Mar 2010 Location: Copperas Cove, Texas Posts: 1,782 View My Garage	HP Loss due to Rims/Tires? I was just wondering what a normal hit would be to Wheel HP if the rims are swapped from Stock to a little bit heavier aftermarket rim and bigger tires? Basically I am wondering if my thinking is correct or if my rims and tires were at fault because my last Dyno was 447 RWHP and 428 TQ. I Dynoed Sunday with the new wheels and tires and added a ported throttle body and intake since the last tune. My RWHP was 440 and my TQ was 454. Those numbers seem a little wierd to to me.......After I came off the dyno a guy standing there said his ris and tires cost him 30 HP so I was just wondering...... anyone have an opinion? __________________ Texas speed LT Headers and High Flow Cats, Magnaflow 3 inch cat-back Exhaust, SNL V2 Comp CAM, Texas Speed Underdrive Pully, G5CR CAI, Hurst Short Throw Shifter, JetFlo Mass Air Sensor, Custom Grill, Amber AAC Headlight and Fog Light Halo, Amber footwell Lighting, Amber under hood lighting, RK Sport Ram Air /Heat Extractor Hood and ADM Racing Scoop. 447.9 RWHP 428 TQ My car is exactly that, No one has to like it but me! Last edited by CamaroCowboy; 04-08-2013 at 12:34 PM.

04-08-2013, 12:17 PM	#2
NinoSS Drives: 2SS/RS CGM LS3 Join Date: Aug 2009 Location: NJ Posts: 1,619	the huge jump in tq does not look right? __________________ Current - 2018 NGM 1LE (LT4 conversion coming soon) SOLD 2010 LS3 / Vengeance stage I cam / CAI intake w/ADM race scoop / Dynatech LT's / Eaton Posi LPE-JRE 3.91's / L99 Corsa / ZL1 wheels / NT05 275/315

04-08-2013, 12:23 PM	#4
CamaroCowboy Drives: 2013 Chevy Truck Join Date: Mar 2010 Location: Copperas Cove, Texas Posts: 1,782 View My Garage	Josh from the local Vette Club took care of me after he ported my TB and Intake! I am starting to think the Dyno was just off because I hit 447 RWHP and 428 TQ on my last dyno. Then I added an aftermarket Hood (lighter than stock), ADM Racing Scoop, Ported TB and Intake, then A bit wider rims and bigger tires. I can't beleive that i only hit 440 RWHP but with 454 TQ. The numbers just don't seem right to me. __________________ Texas speed LT Headers and High Flow Cats, Magnaflow 3 inch cat-back Exhaust, SNL V2 Comp CAM, Texas Speed Underdrive Pully, G5CR CAI, Hurst Short Throw Shifter, JetFlo Mass Air Sensor, Custom Grill, Amber AAC Headlight and Fog Light Halo, Amber footwell Lighting, Amber under hood lighting, RK Sport Ram Air /Heat Extractor Hood and ADM Racing Scoop. 447.9 RWHP 428 TQ My car is exactly that, No one has to like it but me!

04-08-2013, 12:19 PM	#3
Rico Flying da helicopter Drives: Black SS/RS Join Date: Oct 2009 Location: HI Posts: 1,215 View My Garage	Where did you get it tuned at? I live in harker heights, trying to find a local tuner.