AGP twin vs PD blower (Kenne Bell 2.8) - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

scv_guy · 04-19-2018, 05:24 PM

For anyone interested here is the power difference between the PD blower and twin turbos.
Background: My car is a 2014 1LE stock engine with a full fuel system on E85, ID1000 injectors and 3" exhaust through mufflers.

Both where run at 17psi

Turbos where 57/57 with .82 AR

hillshooter · 04-19-2018, 05:28 PM

good post. How about seat of pants driving? that torque on the blower is incredible, i would imagine that would translate to the street fairly well.

Silver14 · 04-19-2018, 05:31 PM

Thanks for sharing these results. Was the same dyno used?

scv_guy · 04-19-2018, 05:32 PM

Quote:

Originally Posted by hillshooter

good post. How about seat of pants driving? that torque on the blower is incredible, i would imagine that would translate to the street fairly well.

The blower is better suited for a street car...

scv_guy · 04-19-2018, 05:32 PM

Quote:

Originally Posted by Silver14

Thanks for sharing these results. Was the same dyno used?

Same dyno and settings.

AGP Turbo · 04-19-2018, 05:47 PM

Two things. Looks like a non loaded dyno so that's worthless for seeing how turbos spool up. We usually see 600wtq at 3600rpm on a real loaded dyno.
Those are pretty big turbos if you are worried about getting into TQ quick, those will make almost 1100whp.
Smaller turbos in .63 housings, ballbearing have much faster spool and still have made 840whp. Much more top end than a KB 2.8 can support. And all without crazy heat soak.
Sort of an apples to oranges comparo, guess you had way more turbo than you needed.

AGP Turbo · 04-19-2018, 06:06 PM

Your dyno is likely just a 2000lb roller and zips through a whole pull in a couple seconds. So you don't see where the turbos spool up in real world conditions and it went through so fast it didn't even show real peak torque at 4600rpm. I assure you would have been 60-80 higher than the peak you see.

dreksnot · 04-19-2018, 06:17 PM

The dyno plot in a way shows how power comes on with each FI. Wow - I whole 135/76 difference between the two at the same PSI (parasitic and efficiency). But the SC has that low-end, whiplash torque down low that makes street fun. All until the turbo car spools up next to you where you're in the power band of 4400-6500rpms. Yippe ki ya!

ecreps · 04-19-2018, 06:57 PM

Interesting comparison, are you running the stock cam?

I know it's been asked before, but can you give a rundown of how your fuel system works?

ecreps · 04-19-2018, 06:58 PM

Quote:

Originally Posted by AGP Turbo

Your dyno is likely just a 2000lb roller and zips through a whole pull in a couple seconds. So you don't see where the turbos spool up in real world conditions and it went through so fast it didn't even show real peak torque at 4600rpm. I assure you would have been 60-80 higher than the peak you see.

Do you know which turbos were used for this run?

Scotty D · 04-19-2018, 07:33 PM

Quote:

Originally Posted by scv_guy

The blower is better suited for a street car...

Why is th PD better suited for the streets ?

scv_guy · 04-19-2018, 08:03 PM

Quote:

Originally Posted by Scotty D

Why is th PD better suited for the streets ?

That is my opinion. Instant low end makes for a fun car!

Pro-tuned · 04-19-2018, 08:28 PM

Both setups require different cams. I see no added value other than showing why you need different cams.

Scotty D · 04-19-2018, 09:22 PM

How are you liking the kenny bell?? And it fits under the hood vent ?? I also have a 2014 1LE
I really want the AGP twins but I’m on the fence !!

04-19-2018, 05:24 PM	#1
scv_guy Drives: 2010 Camaro SS Join Date: Jan 2015 Location: Valencia Posts: 1,305	AGP twin vs PD blower (Kenne Bell 2.8) For anyone interested here is the power difference between the PD blower and twin turbos. Background: My car is a 2014 1LE stock engine with a full fuel system on E85, ID1000 injectors and 3" exhaust through mufflers. Both where run at 17psi Turbos where 57/57 with .82 AR Attached Images

04-19-2018, 05:28 PM	#2
hillshooter Drives: 2015 Camaro SS commemorative Join Date: May 2015 Location: Utah Posts: 425	good post. How about seat of pants driving? that torque on the blower is incredible, i would imagine that would translate to the street fairly well. __________________ 2015 Camaro SS, LS3 Stroker, PRC heads,CUSTOM CAM. AGP 68/68 with custom Hot and Cold side. Fore triple pumps, Holley terminator X. BMR drag suspension with carlyle brake kit. 15" ET drags and 17" skinnies. ZL1 3.73 gears , aluminum driveshaft. TH400 with circle D converter.

04-19-2018, 06:17 PM	#8
dreksnot Served USN - Atomic Chimp Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012 Location: Fort Collins, CO Posts: 1,605 View My Garage	The dyno plot in a way shows how power comes on with each FI. Wow - I whole 135/76 difference between the two at the same PSI (parasitic and efficiency). But the SC has that low-end, whiplash torque down low that makes street fun. All until the turbo car spools up next to you where you're in the power band of 4400-6500rpms. Yippe ki ya! __________________ In excess of 1,000WHP LSX434 \| AGP 65/65 TT \| BTR Equalizer Intake \| Trickflow 245cc cathedral \| BTR custom cam \| Cortex EBC \| n2mb WOT \| ID-1700x \| Brisk GR12S \| RPM Lv 7 TR6060 \| AGP's Triple 525LPH Fore Fuel \| Monster LT1-S Triple \| 4.11 DSS Proform 9", CF driveshaft, 1400hp axles \| Hurst Line Lock \| MGW Retro Short Throw w/old skool Hurst T-handle \| ADM solid subframe mounts \| Prothane Motor Mounts \| Revshift Poly Trans insert \| Moreno camber/caster plates

04-19-2018, 08:28 PM	#13
Pro-tuned Angewendet Ingenieur Drives: 14 Camaro ZL1 Join Date: Apr 2015 Location: USA Posts: 401	Both setups require different cams. I see no added value other than showing why you need different cams. __________________ ———— LQ9, Iron Block, Forged internals, 408CI, Jannetty custom cam, TS short block, Whipple, Hardened Jackshaft, PRC 260, 2X3 Dynatech Full Competition, HF Cats, CAI, NW 103, Chee, ID 1300, COPO Breather, MSD, Fore Dual Pump, ultratorque, E85, dual Meth, True Trac, 3:45, 1500hp axle-shafts, DSS CF, BMR, custom Pearl/Candy paint by Jaidah.

04-19-2018, 05:31 PM	#3
Silver14 Drives: 2014 SIM 2SS Join Date: Sep 2015 Location: Charlotte, NC Posts: 925	Thanks for sharing these results. Was the same dyno used?

04-19-2018, 05:47 PM	#6
AGP Turbo Drives: All things Turbocharged Join Date: Dec 2010 Location: AZ Posts: 1,199	Two things. Looks like a non loaded dyno so that's worthless for seeing how turbos spool up. We usually see 600wtq at 3600rpm on a real loaded dyno. Those are pretty big turbos if you are worried about getting into TQ quick, those will make almost 1100whp. Smaller turbos in .63 housings, ballbearing have much faster spool and still have made 840whp. Much more top end than a KB 2.8 can support. And all without crazy heat soak. Sort of an apples to oranges comparo, guess you had way more turbo than you needed.

04-19-2018, 06:06 PM	#7
AGP Turbo Drives: All things Turbocharged Join Date: Dec 2010 Location: AZ Posts: 1,199	Your dyno is likely just a 2000lb roller and zips through a whole pull in a couple seconds. So you don't see where the turbos spool up in real world conditions and it went through so fast it didn't even show real peak torque at 4600rpm. I assure you would have been 60-80 higher than the peak you see.

04-19-2018, 06:57 PM	#9
ecreps Drives: 2014 1LE, 1996 z28 Join Date: May 2015 Location: United States Posts: 172	Interesting comparison, are you running the stock cam? I know it's been asked before, but can you give a rundown of how your fuel system works?

04-19-2018, 09:22 PM	#14
Scotty D Drives: 2014 1le 1SS CRMT Join Date: Apr 2014 Location: Boston mass Posts: 1,178	How are you liking the kenny bell?? And it fits under the hood vent ?? I also have a 2014 1LE I really want the AGP twins but I’m on the fence !!