SakeBomb Garage GB: Water Injection / AI Rear "Euro" Tank Pre-Order - Group Buy

SakeBomb Garage — Fri, 15 May 2026 02:25:11 GMT

Inspired by the "Euro Spec" rear wiper tanks from select international markets, our purpose-built water/alcohol injection tank for the FD3S aims to add a seamless water/meth injection solution to all FD's with the reliability and integrated design as Mazda would have designed. Beginning with a 3D scan of the OEM "Euro" Tank, we went to work to remove unnecessary features, refine the design and test, test, test until we were happy with the final product. Testing and design work included countless designs revisions, CFD (computational fluid dynamics) modeling, extensive fitment verification, real world testing and the design of a deep anti-starvation sump to address potential starvation issues for the most rigorous track cars. We've maximized capacity and minimized starvation, so you can use the very last drop of water/meth before refilling. A whopping 2.1 gallons worth! All while hidden beneath the OEM rear plastics with only an OEM-style cap visible. We think the end result was worth the long design hours, and hope you feel the same way when installing this in your FD!

Features:

One piece blow mold design to increase capacity and ease install
Anti-Starvation Design with integrated sump to avoid fluid starvation
Capacity over 2 Gallons (8.2Liters)
3mm thick HDPE (methanol friendly)
100% bolt in requiring zero modification
OEM fit and finish
Compatible with any water/meth injection kit
Multiple bosses for level sensors and nozzle fitment
OEM install hardware and SBG cap included

A little history and background on the "Euro" rear tank:

One of the philosophies we've always had as a company was to make the OEM systems and parts work better. In the case of our Euro Methanol Tank, we started with an OEM washer tank that was only found on select European and Canadian market cars. These cars received a larger washer tank, mounted in the rear hatch, behind the plastic panel. The reason for the larger tank was to feed three thirsty systems; the front washers, the rear washer AND the headlight washers (which US cars didn't get).

What Mazda failed to realize was that methanol injection was WAY cooler than headlight washers. The "Euro" tanks simply aren't readily available, and their two piece design is prone to leaking. The additional pumps are unnecessary and are potential leak points, and space just isn't optimized for capacity. They also lack a sump and are prone to fluid starvation in high G cornering. Fortunately all FDs have the necessary mounting points and provisions to support the larger tank, and is what we built our design around. This is truly an OEM solution, but race re-engineered by the team at SakeBombGarage.
Wait. So why do I need Methanol Injection?

* More Boost! Methanol injection allows for more aggressive tuning as it acts as extra octane, which in turn prevents detonation. Meaning, you can up the boost while maintaining safe A/F ratios.

* Cooler Intake Temps. Removing heat is the name of the game in the rotary world. Methanol Injection is arguably the most efficient way to do that.

* Increased Intercooler Efficiency. Most intercoolers run at 50-60% efficiency, methanol injection makes your intercooler ULTRA efficient. Even smaller SMICs will show huge benefits coupled with methanol injection.

* Cleaner Internals. Methanol injection effectively steam cleans you internals and helps prevent dreaded carbon build up on your rotors.

PLEASE BE AWARE WE NEED AT LEAST 50 PEOPLE TO ORDER: https://sakebombgarage.com/trunk-mou...njection-tank/

Please Write your name and place.

Group Buy:
1.
2.
3.
4.
5.

_________________

SAKEBOMB GARAGE LLC
www.SAKEBOMBGARAGE.com
Specialty aftermarket parts & service // Fremont, California
Contact: info@sakebombgarage.com[/QUOTE]

Fabricator/3D Printer here - what FD3S interior parts can't you find anymore?

TheManicMechE — Sat, 02 May 2026 16:00:19 GMT

Hey RX7Club �

I'm Michel � mechanical engineer, fabricator, and the guy behind The Manic Mech-E on YouTube (youtube.com/@ManicMechE). I've recently focused on a problem that might interest you: reverse-engineering and 3D printing interior trim pieces that are NLA or no longer supported by the OEM.

Most recent example: the sun visor on a 2012 Hyundai Accent � I reverse-engineered it from the broken original, modeled it in CAD, split it across 4 prints to fit my build volume, bonded and finished it to OEM fit. The original swivel mechanism and metal frame drop right back in � only the plastic body needed replacing.

If you want to see exactly how I work � reverse engineering process, CAD, print settings, bonding, and final fit check � my most recent video walks through the whole build start to finish:

I've been researching the FD3S specifically. I've gone through Mazdatrix's catalog, and the NLA situation on interior plastic is genuinely bad and getting worse. These cars are 30+ years old and Mazda isn't coming back for them. Seatbelt quarter trim, defroster nozzles, center console pieces, dash bezels � this stuff is either gone or commanding prices that don't make sense for cracked plastic.

I'm building out my FD3S catalog and I'd rather make what this community actually needs than guess. Here's the deal: tell me what interior part you've given up trying to find, and if I can make it I'll dedicate a full episode of the channel to it � reverse engineering, CAD walkthrough, print, and fit check on an actual FD. Your part, documented for the whole community, available to order when the video drops.

Drop your year, trim level, and part below. The more specific the better � OEM part numbers if you have them.

RX7Club.com - Mazda RX7 Forum - Group Buy & Product Dev. FD RX-7

SakeBomb Garage GB: Water Injection / AI Rear "Euro" Tank Pre-Order - Group Buy

Fabricator/3D Printer here - what FD3S interior parts can't you find anymore?