HKS Supercharger E85 Dyno Results - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

BRZ_88 · 06-03-2020, 05:51 PM

I just got back from some dyno pulls and here are the results,

310whp
222lbs torque
13psi boost

The full setup is - HKS GT V3 Supercharger with upgraded pulley kit, DW 900cc injectors, DW fuel pump, Borla UE length headers, Grams 72mm throttle body.

Ecutek tuned to run on E85.

I'm pretty happy with this. Power to weight ratio is now up there with the 370z Nismo, Mustang GT etc. I just hope it holds up and I don't end up in the engine rebuild thread!

BlOody_BoOger · 06-03-2020, 06:26 PM

Quote:

Originally Posted by BRZ_88

I just got back from some dyno pulls and here are the results,

310whp

222lbs torque

13psi boost

The full setup is - HKS GT V3 Supercharger with upgraded pulley kit, DW 900cc injectors, DW fuel pump, Borla UE length headers, Grams 72mm throttle body.

Ecutek tuned to run on E85.

I'm pretty happy with this. Power to weight ratio is now up there with the 370z Nismo, Mustang GT etc. I just hope it holds up and I don't end up in the engine rebuild thread!

Lol only smash it when u need to. E85 is better than pump gas less chance of knock despite the power increase.

Sent from my GM1915 using Tapatalk

Joveen · 06-04-2020, 02:24 PM

Are you running the grams with the red manifold?

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BRZ_88 · 06-05-2020, 06:09 AM

Quote:

Originally Posted by Joveen

Are you running the grams with the red manifold?

Sent from my SM-N960U using Tapatalk

It's this one https://www.ft86speedfactory.com/gra...l#.XtoY8kVKguU

No red manifold though.

I had some major idling and unpredictable rev issues after getting the supercharger installed, installing this fixed the problem.

tomm.brz · 06-05-2020, 06:56 AM

idling problems have nothing to do with stock throttle body
if you had idling problems, it was only fault of the tune and calibration of injectors and throttle body itself

Anyway great dyno pull!

jflogerzi · 06-05-2020, 10:39 AM

Agreed. What kind of Dyno was this. Do you have a baseline for a stock car on this Dyno?

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Irace86.2.0 · 06-05-2020, 06:28 PM

Quote:

Originally Posted by BRZ_88

It's this one https://www.ft86speedfactory.com/gra...l#.XtoY8kVKguU

No red manifold though.

I had some major idling and unpredictable rev issues after getting the supercharger installed, installing this fixed the problem.

Is the throttle body a bottleneck at this power? Would be cool to see a dyno before and after the TB.

BlOody_BoOger · 06-05-2020, 06:32 PM

Quote:

Originally Posted by Irace86.2.0

Is the throttle body a bottleneck at this power? Would be cool to see a dyno before and after the TB.

Don't think it would be a bottle neck but for sure the grams has much more aggressive throttle response

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Grady · 06-05-2020, 06:42 PM

Quote:

Originally Posted by Irace86.2.0

Is the throttle body a bottleneck at this power? Would be cool to see a dyno before and after the TB.

From what i have found our heads/intake valves are our bottleneck. That is why any induction changes/filters have little effect on power.

weederr33 · 06-05-2020, 09:12 PM

If only this kit was more reliable I'd love it take the plunge

BRZ_88 · 06-06-2020, 03:34 AM

Quote:

Originally Posted by tomm.brz

idling problems have nothing to do with stock throttle body
if you had idling problems, it was only fault of the tune and calibration of injectors and throttle body itself

Anyway great dyno pull!

My post may have been a bit misleading there, it was more of an internal sensor issue than a physical one.

I got a DTC code for the throttle position sensor after some test pulls, and unfortunately the only way to replace that was a whole new throttle body. It fixed the idling issue with no tune adjustments.

BRZ_88 · 06-06-2020, 03:43 AM

Quote:

Originally Posted by jflogerzi

Agreed. What kind of Dyno was this. Do you have a baseline for a stock car on this Dyno?

Sent from my GM1915 using Tapatalk

It was done on a Dyno Jet 248.

A quick search shows a stock 2013 model produced 173whp on the same model of dyno (https://www.edmunds.com/car-reviews/...no-tested.html), so I'm getting an increase of almost 140whp with the new setup!

GrabTheWheel · 06-06-2020, 04:17 AM

Quote:

Originally Posted by BRZ_88

I just got back from some dyno pulls and here are the results,

310whp
222lbs torque
13psi boost

The full setup is - HKS GT V3 Supercharger with upgraded pulley kit, DW 900cc injectors, DW fuel pump, Borla UE length headers, Grams 72mm throttle body.

Ecutek tuned to run on E85.

I'm pretty happy with this. Power to weight ratio is now up there with the 370z Nismo, Mustang GT etc. I just hope it holds up and I don't end up in the engine rebuild thread!

It's funny my F56 Mini made the same exact numbers but flipped with just a reflash on pump gas. Curb weight is about the same too.

310 ft/lbs TQ
222 WHP

06-03-2020, 05:51 PM	#1
BRZ_88 Imperator Join Date: May 2020 Drives: Supercharged 2013 BRZ Limited Location: Minnesota Posts: 38 Thanks: 19 Thanked 26 Times in 13 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	HKS Supercharger E85 Dyno Results I just got back from some dyno pulls and here are the results, 310whp 222lbs torque 13psi boost The full setup is - HKS GT V3 Supercharger with upgraded pulley kit, DW 900cc injectors, DW fuel pump, Borla UE length headers, Grams 72mm throttle body. Ecutek tuned to run on E85. I'm pretty happy with this. Power to weight ratio is now up there with the 370z Nismo, Mustang GT etc. I just hope it holds up and I don't end up in the engine rebuild thread!

06-05-2020, 09:12 PM	#10
weederr33 Airborne at your service Join Date: Sep 2014 Drives: '17 BRZ Series.Yellow Location: El Paso, Texas Posts: 6,325 Thanks: 4,528 Thanked 5,586 Times in 2,928 Posts Mentioned: 33 Post(s) Tagged: 2 Thread(s)	If only this kit was more reliable I'd love it take the plunge __________________ Series.Yellowbird - http://www.ft86club.com/forums/showthread.php?t=122135 MS, CSCS, TSAC-F, CPT

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06-04-2020, 02:24 PM	#3
Joveen Senior Member Join Date: Mar 2018 Drives: Bone stock Location: Windsor, CT Posts: 764 Thanks: 534 Thanked 232 Times in 162 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	Are you running the grams with the red manifold? Sent from my SM-N960U using Tapatalk

06-05-2020, 06:56 AM	#5
tomm.brz Senior Member Join Date: Jan 2017 Drives: brz 2017 hksv2 Location: italy Posts: 2,195 Thanks: 500 Thanked 1,065 Times in 774 Posts Mentioned: 65 Post(s) Tagged: 0 Thread(s)	idling problems have nothing to do with stock throttle body if you had idling problems, it was only fault of the tune and calibration of injectors and throttle body itself Anyway great dyno pull!

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