What are the opening hours?

Monday 10am - 7pm Tuesday 10am - 7pm Wednesday 10am - 7pm Thursday 10am - 7pm Friday 10am - 7pm Saturday 10am - 7pm

JSR Engines

Name: JSR Engines
Address: 839 W Covina Boulevard, Covina, CA, 91722, US
Telephone: +16266254462
Price range: $$$

Dyno • Performance • Install🔧
Honda Builds From Mild To Wild⁣⁣
Fastest FK8s & CV2s in SoCal 🚗💨

Engine Assembly
Balancing & Blue Printing
Block Main & Connecting Rod Mic'ing
Cam Degree Services for B,D,H,K,F Series Engines
Crank Polishing & Balancing
Cylinder Head Porting & Polishing
After Market Parts and Installation
Piston and Rod Packages
Engine Sleeving
Cylinder Head Rebuilds

08/09/2026

Another Track Monster added to the Portfolio. Yep, that's a Stock intake pushing 530WHP and 430WTQ powered by 𝙈𝘿𝙍 𝙄𝙉𝘿𝙐𝙎𝙏𝙍𝙄𝙀𝙎 MDR-660 Turbo. Good Luck at the next event Jeff Wong 🚗💨💨💨

08/05/2026

We've been servin' up these "S**t Pack" specials like crazy around here lately.

CV2 10 Speed Accord Powered by 𝙈𝘿𝙍 𝙄𝙉𝘿𝙐𝙎𝙏𝙍𝙄𝙀𝙎 MDR-660 turbo pushing this Dad Car well into the 400WHP Range without a hiccup.

425WHP/391WTQ E30 91 Oct FBO

07/26/2026

We've got 99 problems but 2000cc cold starts ain't one 💪

Two different platforms, both stage 4 Race Motors, Both Run .di 2000cc injectors with damn near perfect starts.

We have the best 2000cc cold starts in the game ✌️others claim to have cold starts locked down with no proof.

DM us if you want to get setup right 🚗💨

06/23/2026

🚨 New Product Alert 🚨

MDR Industries MDR-700 FK8/FL5/DE5/CV2 Drop-In Turbo

The NEW KING 👑 of Drop-in Turbo’s, save all your comments, we have tested everything here and this is the ONE!

The first Full Frame Turbo Stuffed into a Type R Style Drop-in Turbo. No expensive full frame turbo kit prices, just a “one and done” as we like to call it. The closest drop-in turbo to come close this power is the R-660 with 630WHP and 2 more psi of boost, both test vehicles being 100% identical besides the turbo. 100% Garrett reliability and dependability without the hassle. If your waiting for a new drop here it is!

663WHP/518WTQ 34psi

MDR-700 Drop-In Frame Turbo
JSR FK8/FL5/DE5 Super Elite FSU
MDR Billet Front Mount Intercooler
JSR FK8 14V Fuel Supply/Return System
JSR Ultra Race Intake Manifold
JSR Race Ported Cylinder Head
4P TR2 Camshafts
4P 625+ Head Studs
JE Pro Seal Head Gasket
100% Stock Block, Untouched
PPG 1-5 Gear Rack
X-Clutch Stage IV Full Faced Kevlar Discs
JSR Modified Clutch Slave
JSR Modified Clutch Master
E50/91Octane
Greddy HGSP Exhaust

Contact Us for Your MDR product inquires, we have most of their products in store.

06/10/2026

The people asked and we shall provide. Wheel Horsepower is what they asked for so.. we are going to give it to them.

Introducing the MDR 700 Turbo. Garrett Gen II G25-700 Technology stuffed in an FK8/FL5/DE5/CV2 Stock Framed Housing.

FK8 has everything we can throw at this drop in dual ball bearing undercover Garrett turbo. Cams, Ultra Race ported head, JSR Elite FSU, 2000 injectors, 14V Supply/Return, PPG Trans, OSG HTR twin.

Basically we are going to throw everything at it and see what she does.

Stay Tuned 📺 For Data Next Friday 6/19

If anyone is interested in putting up a wager to test a vehicle here and at a local Dynojet the same day DM us, we have $500 that says we are within 1.2% variance at the highest. Come test your luck.

05/29/2026

We are gone Racing!🏎️🏁

We will be closed 5/29-5/31 all orders will be shipped out Monday the 31st and we will be getting back to emails and DMs when we return!

12/16/2025

What’s up y’all. We are going to be doing a cruise to PCH Thursday Jan 1st.

Meet up will be at JSR HQ at 11AM then heading out at 12PM.

Route and end destination will be given the day of.

All cars welcome!

11/11/2025

Chase in his GTA FL5 around in just 1:52.

What a great event with great people, we cant wait to come back next year with a fresh set of 200TW tires this time.

11/10/2025

Blasting off into the Weekend like...

We're out here for Finals!

Have a Great Weekend!

09/17/2025

with our JSR Stage I K20C1 Race Program Turning Up the packs.

628WHP/490WTQ

Rampage G30-770 34psi
JSR Ultimate Fuel System
XDI HPFP & 2K Injectors
JSR Ultra Race Intake Manifold
JSR Stage I Engine OEM Sleeve
JSR K20C1 Xtreme Duty 87mm Pistons
OEM Cylinder Head, No Port
OEM Camshafts
4 Piston 625+ Headstuds
JE Proseal Head Gasket
Golden Eagle Bore, Torque Plate Hone & Step Deck 003"
Balance & Blue Printed Assembly
ACL Race Bearing Kit with OEM Thrust
Wiseco Boostline Rods
Sunnen 3 angle Competition Valve Job
HKS FMIC with Charge Pipes
E50/91 Octane
Stock Trans
Clutch Masters FX400 8 Puck Clutch
No Methanol
No Port Injection
No Race Gas
Pure Pump Gas ⛽️

Address

839 W Covina Boulevard
Covina, CA
91722

Opening Hours

Monday	10am - 7pm
Tuesday	10am - 7pm
Wednesday	10am - 7pm
Thursday	10am - 7pm
Friday	10am - 7pm
Saturday	10am - 7pm

Telephone

+16266254462

Website

http://www.jsrengines.com/

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