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Writings of technical nature. Designed to teach and explore issues of automotive mechanics.

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Heeltoe Video Explaining Bolt-on Wheel Hub Spacers
Chassis

You've seen all kinds of wheel spacers and here we are explaining how the "bolt-on" kind work. Some spacers do not have...

A Bit About Ethanol Fuels; Is E85 or Flex Fuel Right for My Hi-Power Hondacar?
Engine

Whenever something new and sciencey comes up in the car world, it seems like Bill Nye is just not catering to us the way we wished he...

Tein's Street Advance Z (SAZ) compared to the FLEX Z: Full Compare & Contrast
Suspension

Heeltoe's two most popular coilover lines fit many of our customers' needs for a smooth riding adjustable suspension that...

Clutchmasters SAC vs non-SAC Clutch Kits for J-series V6 engines J32/J35
Drivetrain

Given that Clutchmasters has provided both standard and SAC options for clutch kits for our popular J32/J35 customers, we wanted to...

FAQ: Can the 3rd converter prone to cause engine lights on my V6 Honda/Acura?
Exhaust

FAQ: Does changing out the 3rd cat on my J-series V6 TL/Accord/etc cause an engine light?

The classic Fastline Performance Shifter uses fundamentals over flair to endure
Drivetrain

Since 2003, the Fastline Performance shifter has been a go-to racing shifter for Honda-car fans...

Medieval-Pro Torsion Bars for 1g Integras; Retrofit Your Car With CRX tubes.
Suspension

Due to dwindling numbers and high production volume requirements, torsion bars in Integra-specific lengths elude our catalog. But fear...

Heeltoe's Take On Alloy Crank Pulleys for Honda/Acura Engines
Engine

Aluminium crank pulleys have been a popular upgrade for tuners for ages. Today, there is still a lot of hay made about the detrimental...

Unboxing: Synchrotech K-Series Rebuild Kit w/ Carbon Synchros
Drivetrain

Heeltoe unboxes and gives a tour of the components in the Synchrotech transmission rebuild kit.  Found inside are high quality...

Medieval-Pro Torsion Bars Install Parts 1 & 2: Details on the Layout & Re-Indexing
Suspension

Heeltoe is a rare source of information and parts related to the 84-87 Civic/CRX and 86-89 Integra models with their unique...

Help! I got a CEL/MIL with my Test Pipes Installed: P0420/0430/0139/0159
Exhaust

Your car is smart. It's looking for a catalytic converter and making sure it is working properly. But your race car has cats...

Heeltoe's EXCLUSIVE Upper Mount Option for Tein Coilovers EVOLVES
Suspension

No other parts supplier is In Your Corner enough to offer to not only supply new factory Honda upper mounts for your Honda's new...

Product Release: Koni Yellows and Eibach Springs for the 1992-94 Acura Vigor
Suspension

Mixing and matching parts from different models is one of the joys beyond driving that Honda and Acura have bestowed on us. Sometimes...

BC Racing BR Series, Swift & Extreme-Low Unboxing & Product Lap
Suspension

Heeltoe Automotive offers the complete line of BC Racing Coil-over damper kits, including all the custom options you want to get the...

Product Announcement: New Lost Motion Assemblies for the J-Series V6 from P2R
Engine

The LMA is designed to pre-load the VTEC rocker when the VTEC is off. The P2R LMAs are designed and produced to the highest...

Product Review: Phantom Audio Retuned Amp for the 04-08 TSX
Tech Articles

If the Hondata Reflash is the best performance improvement for the buck, Phantom Audio's amplifier retuning is the best way to...

The Koni Sport Yellow Shock & Their "Height Adjustable" Nature: Don't Put Too Much Stock In That...
Suspension

A note on the adjustability of the Koni Sport Yellow Shock/Strut damper. Why you can adjust height my moving the spring perches, but...

MFactory Helical- and Plate-Type Diff Break-In Procedure
Drivetrain

After installing a new MFactory differential from Heeltoe, you may have concerns about the break-in procedure for these parts....

Tein's new Street Advance Z (SAZ) Coilover Versus The Outgoing Street Advance (SA)
Suspension

Tein Suspension has long been a producer of quality suspension parts. Tein's long-term development has allowed them to continually...

Spoon Rigid Collar Bushing Reuse: Are They One Time Use?
Chassis

The Spoon Rigid Collar Bushings are great pieces for ensuring subframe-to-chassis alignment is correct. But because they deform when...

Tein's EDFC: What Is It, Why Get It, & How To Order
Tech Articles

People often ask, what is the TEIN EFDC? Or EFFC? Or occasionally they'll get it right...EDFC? TEIN's literal meaning is...

Tech: What's the Spring Rate of my Torsion Bars? #torsionbarhondas Content Inside!
Tech Articles

Because of the various lengths of bars, diameters of bars, and control arm lengths available on Torsion Bar Hondas, Heeltoe has made a...

Torsion Bar Honda Suspension: Medieval-Pro by Tein vs BC Racing
Suspension
The torsion bar layout in mid-80s Honda cars have been a mystery to many tuners, as has been the process of modifying them. We shed light...
How Much Play Should There Be On My Axle Inner Joint? (Honda/Acura)
Drivetrain

I had put my #HTSpecTSX on a lift and studied the factory axle-play in my VIBRATION FREE setup. A little play appears normal...

Car 101: What color is my car? Honda/Acura Guide to Paint Codes/Names/Variants!
Tech Articles
Surprise...your car is not SILVER. It might be hard to describe your color properly, but when you have the color code at your disposal,...
Product Feature: Medieval-Pro Damper Kit Version 2
Tech Articles
The Medieval Pro damper kit, produced exclusively for Heeltoe Automotive by Tein USA, takes a leap in features in the second version for...
Helper Springs: What are they and do I need them?
Suspension
Helper springs add visual contrast and variety to a coil-over kit's appearance, but they serve a function beyond cool looks. This article...
New Fastline Performance Inner Axle Joint Kits
Drivetrain

Heeltoe Automotive has solved many Honda/Acura customers' infamous axle vibrations with Genuine Honda Inner Joint kits. Now, we've...

Catalytic Converters: Can I delete them and still be legal?
Tech Articles

Deleting catalytic converters is not legal in the United States on any road-going vehicle.


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