Jekyll & Hyde Performance

Jekyll & Hyde Performance Custom stand alone and stock ECU calibration. Specializing in late model GM, Ford, Mopar applications. Bolt ons to complete builds offered.
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Operating as usual

🏎️💨
11/21/2020

🏎️💨

11/20/2020

2013 ZL1 making 588/591SAE 611/614 STD @10lbs.

Clean 2013 ZL1 with only 21k miles going on the rollers.93 oct Manual transCamHeadersExhaustInjectorsCAI
11/19/2020

Clean 2013 ZL1 with only 21k miles going on the rollers.
93 oct Manual trans
Cam
Headers
Exhaust
Injectors
CAI

As an active duty member myself I would like to personally thank all Veterans for your service and sacrifice. I'm moving...
11/11/2020

As an active duty member myself I would like to personally thank all Veterans for your service and sacrifice. I'm moving to make big changes for our homeless Veterans that's my promise to you. #onelove

11/09/2020

Chevy SS making a healthy 610/626 SAE 635/651 [email protected] 11psi on 93 octane. E85 will be coming next. Can't wait to see the new times at track with new ECU and trans calibrations. Mods are:
LSA swap
DMS street envy cam
Kooks LT headers
Roto Fab CAI
95lb injectors
MM catch can

11/06/2020

2009 Pontiac G8 GT with headers and a CAI making 340/358 SAE 353/378 STD on 87 oct.

10/31/2020

Josh's C6 continues to impress and gets faster and faster. Stock sealed LS3 never even had the valve covers removed, stock converter, stock trans and diff with 2.56 gearing with Novi 1500 on 93 octane. Engine and Trans calibrations by Jekyll & Hyde Performance.

Brandon pulled out the win even shifting with a broken thumb🤣. Roush equipped Mustang tuned by Jekyll & Hyde Performance
10/31/2020

Brandon pulled out the win even shifting with a broken thumb🤣. Roush equipped Mustang tuned by Jekyll & Hyde Performance

We will be bringing some heavy hitters to the COTA event. Looking forward to catching up with old friends and meeting ne...
10/29/2020

We will be bringing some heavy hitters to the COTA event. Looking forward to catching up with old friends and meeting new ones! We will be in the King of The Bakery class and 1000hp class.

Getting ready for the roll race at COTA has been hectic but thinking we are about ready!Late Model Engines RPM Transmiss...
10/28/2020

Getting ready for the roll race at COTA has been hectic but thinking we are about ready!

Late Model Engines
RPM Transmissions
Maxxecu / Maxxtuning AB
ProTorque

10/25/2020

Enjoy this 750hp mustang hitting 201mph on the dyno. We didn't tune it buddy wanted to see what it was making on his lund tune. She's stout!

10/23/2020

GTO equipped with BTR stage 3 cam making 397/358 SAE 412/372 STD through the 4L60 and 3600 stall. Should be a fun ride.

Just did some modifications and car isn't drivable? Jekyll & Hyde Performance is excited to announce we will teaming up ...
10/21/2020

Just did some modifications and car isn't drivable? Jekyll & Hyde Performance is excited to announce we will teaming up with Abilene Wrecker Service to offer free towing within Abilene city limits to our location. Get with us for details!

Dyno room taking form😎
10/14/2020

Dyno room taking form😎

Alchemy is the art of taking basic metals and transforming it into gold. That is our goal for every vehicle we touch. Wh...
10/11/2020

Alchemy is the art of taking basic metals and transforming it into gold. That is our goal for every vehicle we touch. Whether it's just a tune or a full build you will always get our best effort every time. One of our loyalty customers likes to lead the pack and with another 1k hp beast added to the stable it will do just that. Let's get to work 💪.

2016 Hellcat Charger

426CID HEMI built short block

Whipple 4.5L Supercharger with 1/1 custom cut pulley

180mm Super mono blade TB

Kooks 2 inch headers with borla exhaust

Injector Dynamics 1725 cc

Hellraiser Performance Transmissions Next Gen 8HP90 1400WHP Transmission

ProTorque 8 Speed Torque Converter w/ Billet Stator

FORE INNOVATIONS DUAL PUMP TO TRIPLE w/ TI AUTO 285

ZL1 lid milled and installed on CTS-V along with a mighty mouse wild catch can. Hoses were converted to -10 AN fittings ...
10/09/2020

ZL1 lid milled and installed on CTS-V along with a mighty mouse wild catch can. Hoses were converted to -10 AN fittings for the lid.

Time to get in on some stick shift racing!! Get with me for registration on the outlaw races!Friday October 30th Stick s...
10/09/2020

Time to get in on some stick shift racing!! Get with me for registration on the outlaw races!

Friday October 30th

Stick shift shootout

Big Country Raceway

Gates open at 5:00

Lanes open at 6:00

Eliminations at 8:30

Rules;

H pattern ,clutch activated ,standard shift transmissions.

NO Lencos, Jericos, or Liberties.

Cars must have minimum safety equipment for the time and speed they are running.

Any tire permitted.

Classes: Jekyll and Hyde Performance Outlaw Stick

Derrick kenning 210-381-8515

6:49 and faster heads up run what you brung

5 tenths pro tree

$50.00 entry

$500 guaranteed plus entry fees,

Purse could increase with additional sponsorship.

Steve Longmire 325-439-1024

Modified stick index: HEADS UP

Dial in 7.20 worst breakout loses

5 tenths pro tree

$30.00 entry fee

$300.00 guaranteed plus entry fees

Purse could increase with additional sponsorship

West Texas Water Bracket Stick

All cars with stick shift permitted

Bracket style handicapped dial in race

Free entry with run card.

$200 to win,

Purse could increase with additional sponsorship.

Stickers are in and ready to go. $10.
10/06/2020

Stickers are in and ready to go. $10.

10/04/2020

Little Sunday morning cruise to get the 93 out. Injectors and pump then some E will wake it up.

Tuned on MS3 ECU
6R80 swapped

10/02/2020

2002 TA with BTR stg 3 cam and TSP heads making 455/395 SAE 477/411 STD through a 9 inch and 3.90 gears.

09/27/2020

One of our customers out there beating up on the competition. What a rush!

ZL1 lid swap on a CTS-V. Cut down and tapped for AN fittings and milled for clearance on the hood.
09/26/2020

ZL1 lid swap on a CTS-V. Cut down and tapped for AN fittings and milled for clearance on the hood.

Call to arms for all Jekyll & Hyde stick shift cars! October 30th we will be sponsoring a stick shift shootout at The Bi...
09/23/2020

Call to arms for all Jekyll & Hyde stick shift cars! October 30th we will be sponsoring a stick shift shootout at The Big Country Race Way . Let's have a solid showing and take home some money.

09/21/2020

2010 Callaway Camaro gained 77hp and 80 TQ peak but a ton under the curve. Changes from last time we had were Texas Speed & Performance PD blower cam, LC32 bracket, and IW overdrive pulley keeping it at the original 11psi. It made 647/682 SAE 673/710 STD on 91 and 716/711 SAE 745/740 STD on E! This thing is stout.

09/15/2020

2017 Mustang with Roush stage 1 making 618/525 STD 594/504 SAE @9.5-11.5 then drops around 7200 from slip. We will get grip tec on there and maybe a smaller belt to pull all the way to 7800. Car feels amazing.

09/12/2020

2017 Mustang stock with the exception of Roush stg 1 blower setup. Other belt wasn't up to the task so we got a new green belt installed. We are ready for the dyno next week. What do we think it will make.

09/08/2020

1987 rx7 making 396/375 SAE 412/390 STD. Dyno sheet in comments.
LS1
T56
Explorer 8.8 with DSS shafts
Ported 243s
Bbk 92 ported intake/TB
Tick street heat stage 2 cam
42lb terminator injectors.
98 Camaro ECU in SD

1987 rx7 with LS swap we are going to be getting on the rollers next week. What do you think it will put down? I'm going...
09/06/2020

1987 rx7 with LS swap we are going to be getting on the rollers next week. What do you think it will put down? I'm going to say 410-420 SAE. Mods are:
LS1
Ported 243s
Bbk 92 ported intake/TB
Tick street heat stage 2 cam
42lb terminator injectors.
98 Camaro ECU in SD

09/04/2020

2019 A8 Z06 with AFE filter making 557/603 SAE backed up by 560/599. 582/626 STD.

09/04/2020

We pullied down the P1SC C7 and made 591/553 SAE 614/575 [email protected] on 93 and meth.

09/02/2020

2019 A8 Z06 stock baseline with only 900 miles making 534/580 SAE. We will be adding a AFE cold air intake and tuning. Dyno sheet in the comments.

2019 A8 Z06 in for baseline pull and then an AFE CAI and tuning.
09/02/2020

2019 A8 Z06 in for baseline pull and then an AFE CAI and tuning.

2010 Callaway Camaro we did last year is now getting a TSP blower cam and IW crank pulley. Looking forward to seeing wha...
08/30/2020

2010 Callaway Camaro we did last year is now getting a TSP blower cam and IW crank pulley. Looking forward to seeing what it picks up this go around.

TVS 2300 with cog drive and 3.4 grip tec pulley
TSP stage 2 blower cam
1 7/8 headers
IW 10% OD crank pulley
JR tensioner
DSX aux pump
DSX flex fuel
ID1050
91 Octane(last time made 570/[email protected] SAE)
E70(last time made 648/[email protected] SAE)
2 step
MGW shifter
Jekyll & Hyde Performance Tuned

Should I go E85 on my NA setup? Why did that setup gain so much tho?We will always strive to get the most out your vehic...
08/14/2020

Should I go E85 on my NA setup? Why did that setup gain so much tho?

We will always strive to get the most out your vehicles safely along with keeping you within your budget. Some look at me in awe when I don't take their money because it just makes no sense in some cases. For the most part E85 is a mostly knock resistant fuel that draws heat from the combustion charge. This in turn can allow more boost(if FI) and timing. Every setup is different and some may have higher compression setups. If your NA vehicle is already to a point where it isn't knock limited then is it worth it? This is when you have to weigh the cost to hp gains of upgrading your fuel system to handle the extra demand of ethanol. This is why you see some vehicles on E40,E50,E60 which takes some discipline and a gauge to have your composition correct. You also have to factor in how fast your sensor reacts to change in composition. Most of the gains will be had around that E50-60 range anyhow. So this is when you have to answer the question is the 5ish% gain in hp worth the cost on that NA motor? As always thank you for your support and we look forward to serving you in the future!

Address

Buffallo Gap Rd
Abilene, TX
79606

Opening Hours

Monday 09:00 - 18:00
Tuesday 09:00 - 18:00
Wednesday 09:00 - 18:00
Thursday 09:00 - 18:00
Friday 09:00 - 18:00
Saturday 15:00 - 18:00

Telephone

(210) 381-8515

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Comments

I'm excited to get "Orange Crush" tuned and breathing better here soon. 😀
Thanks again !
Thanks again
Allow me to introduce "Mr. Hyde", my 2005 GTO. LSA install going in this winter.
I love the need for speed