TexasSpeed underdrive pulley dyno results.. - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

topgun1 · 11-13-2010, 12:48 PM

After installing the Texas Speed 25% underdrive pulley kit a couple weeks ago, I decided to see if it would make a difference on the dyno and I was really pleased with the results. I went out this morning to my tuner Thomas at Precision Dyno near Charlotte. Atmospheric conditions in the shop were nearly identical to the early morning run back in September. Our base was 450.4 RWHP and 422.5 RWTQ. We did no tuning, just dyno runs. Now overall, we didn't gain much on peak HP and TQ with 451.7 RWHP and 423.9 RWTQ (modest ~1.5 gain each), but we did a number of passes and were really impressed with the consistent gains in the low and mid-range. In this range as shown on the graph, there is about an average 8 hp and 8-10 tq gain and this was consistent in all the runs. The dyno graph attached was our best run. The low end was even more impressive with a peak gain of around 15 hp and nearly 30 tq! Money well spent and I'm happy

2010 SSRS · 11-13-2010, 12:53 PM

Nice

sspaul · 11-13-2010, 04:12 PM

nice every little bit counts man

newmoon · 07-23-2011, 06:56 AM

Older thread but wondering if anyone has seen similar results? Also any issues with cooling, running this kit on a cammed car?

Parapdrapa · 07-23-2011, 11:48 AM

running on a cammed car will negate issues with cooling and voltage (although you would probably never notice) because your idle will be increased a bit with the cam you have

Jason 98 TA · 07-28-2011, 05:29 PM

I think you would find that in a side-by-side same day test you'd see 8rwhp at peak no problem. With testing a mod on different days you wont always get accurate test data. That is the beauty of us testing products on a engine dyno. We can test a pulley in about 8-10 minutes.

newmoon · 07-29-2011, 07:18 AM

Quote:

Originally Posted by Jason 98 TA

I think you would find that in a side-by-side same day test you'd see 8rwhp at peak no problem. With testing a mod on different days you wont always get accurate test data. That is the beauty of us testing products on a engine dyno. We can test a pulley in about 8-10 minutes.

Thank you I will add one to the list

11-13-2010, 12:48 PM	#1
topgun1 Drives: 10 SIM 2SS/RS LS3 Join Date: May 2008 Location: Winston-Salem, NC Posts: 1,940 View My Garage	TexasSpeed underdrive pulley dyno results.. After installing the Texas Speed 25% underdrive pulley kit a couple weeks ago, I decided to see if it would make a difference on the dyno and I was really pleased with the results. I went out this morning to my tuner Thomas at Precision Dyno near Charlotte. Atmospheric conditions in the shop were nearly identical to the early morning run back in September. Our base was 450.4 RWHP and 422.5 RWTQ. We did no tuning, just dyno runs. Now overall, we didn't gain much on peak HP and TQ with 451.7 RWHP and 423.9 RWTQ (modest ~1.5 gain each), but we did a number of passes and were really impressed with the consistent gains in the low and mid-range. In this range as shown on the graph, there is about an average 8 hp and 8-10 tq gain and this was consistent in all the runs. The dyno graph attached was our best run. The low end was even more impressive with a peak gain of around 15 hp and nearly 30 tq! Money well spent and I'm happy Attached Images __________________ 5th Gen Camaros of the Carolinas SIM, 2SS/RS LS3 5/7/11 453.9 RWHP 427.5 RWTQ VMS Stage 2.5 Comp Cams kit, Cold Air Inductions intake, ADM race scoop, DT 1 3/4" headers, Solo cats, 3" Magnaflow catback, Pypes cutouts, HP tune, H&R SuperSport springs, Eibach sways/spacers, TexasSpeed UD pulley, LSR tensioner pulley, Barton shifter, skip shift eliminator, powder-coated calipers, R1 concept rotors, StopTech pads, Granatelli wires, Lloyds mats, tint, AAC afterburner taillamps, AAC scanner/sidemarkers, SRP pedals, custom engine cover, black bowties, Ridergraphix hood spears....

11-13-2010, 12:53 PM	#2
2010 SSRS Drives: 3 V8 Camaros Join Date: May 2009 Location: The Ocean State Posts: 111,187 View My Garage	Nice __________________ Jannetty Racing JRE Street Package

11-13-2010, 04:12 PM	#3
sspaul Drives: 2010 ss camaro, imperial blue Join Date: Sep 2009 Location: new orleans Posts: 939	nice every little bit counts man __________________ my youtube my facebook www.myspace.com/1djchampagne www.twitter.com/1djchampagne mods: borla long tube headers, borla atak catback, lingenfelter gt-9 cam, ported heads, ecs base kit running 11 psi on top end, 1" bmr drop spring, aam 3.70 gears, ported throttle body, 160* thermorstat, lethal racing tune 750/641 rwhp/rwtq

07-23-2011, 06:56 AM	#4
newmoon Drives: 2019 GT350 Join Date: Jan 2011 Location: NC Posts: 3,232	Older thread but wondering if anyone has seen similar results? Also any issues with cooling, running this kit on a cammed car? __________________ 2019 GT350 RR 2013 Boss Mustang 2012 SRT Challenger 392 auto 12:40s 112 stock 2012 Ford Mustang 5.0. Brembo, 3:73s 2010 SS, LS3, Cammed, LTs, 12:20s 2004 Redfire Cobra, Pullied & Tuned 1986 GT, Ed Curtis 347ci, 11:20s motor. 10:30s 100-hp shot

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07-23-2011, 11:48 AM	#5
Parapdrapa Drives: 2010 Camaro Join Date: Jul 2011 Location: NC Posts: 174	running on a cammed car will negate issues with cooling and voltage (although you would probably never notice) because your idle will be increased a bit with the cam you have

07-28-2011, 05:29 PM	#6
Jason 98 TA Drives: Camaro Join Date: Apr 2009 Location: Texas Posts: 1,669	I think you would find that in a side-by-side same day test you'd see 8rwhp at peak no problem. With testing a mod on different days you wont always get accurate test data. That is the beauty of us testing products on a engine dyno. We can test a pulley in about 8-10 minutes.