(Updated February, 2012. See the picture gallery for lots of pictures of TBs bored by Maxbore.)
Welcome to Maxbore throttle body boring service.
CAUTION!
Maxbore is an internet only Business. Any other shop claiming to be Maxbore is not being honest. This website is the ONLY way to get your TB bored
at Maxbore
Maxbore is a one man operation. My name is George, I own and operate everything involved with boring TBs.
I do everything from disassembly, cleaning, boring, machining butterflies and shafts, assembly, ordering material,
packaging, shipping, replying to emails, as well as working on my cars, plus a full time job.
I am humble, I am grateful, I am thankful to all car enthusiasts, to my family, and to all the customers over all these
years that have allowed me to do this.
Maxbore is not just a name, it's the way I bore Throttle Bodies (TB). Unlike most shops
that offer this service, I bore each TB to the maximum safest bore possible.
The only way to do this is to machine my own "in house" custom butterflies. I do not use
pre-cut or die-cut butterflies. I make butterflies in any diameter, thickness,
stop angle or bolt pattern. For this reason, I can bore just about any type of TB out
there that uses a single round butterfly. At Maxbore, my goal is to provide a bored TB that works 100% like OEM.
No cores used. I bore your TB and I send back your sensors. I do not swap parts.
Maxbore specializes in Honda/Acura TBs. I can also bore Toyota, Nissan, Mazda,
GM, and all TBs that fit these criteria:
Cable actuated butterfly. NO DRIVE BY WIRE TB'S.
It must use ONE butterfly.
The bore must be round. I do not bore TBs with oval or other shape bores.
The TB must be open on both sides. I do not bore TBs that are cast as part of the manifold.
I bore individual throttle bodies (ITBs) that are cast as single units. If they are cast in pairs I cannot bore them.
Due to the overwhelming variety of Tbs, I cannot specify a particular size. For
the most part, I can bore TBs from 3mm to 4mm over the stock bore. In some cases where
the casting allows it, I can go well beyond that. Rest assured that your TB will be
bored as large as it can be without compromising the integrity of the casting.
BEFORE AND AFTER.
GENERAL INFO.
Now some information about what it is Maxbore does. The TBs are disasembled, that
includes all the sensors and all moving parts. Then the TBs are thoroughly degreased and
cleaned. TBs then go to the lathe where they are bored, then ported and finally polished.
The opening of the throttle body gets a taper
that begins at 6 degrees then 3 degrees then it is hand blended. A new bigger custom butterfly is machined out
of brass. We do not use aluminum or steel. The brass we use is a special type of oil
impregnated metal that lubricates itself. It is more expensive but provides long lasting operation
without binding. The butterfly is then carefully fitted to the throttle body. Once the proper seal is
achieved the TB is reassembled. The throttle position sensor (TPS) is reinstalled (if included) using new screws
and it is set to factory specifications.
TURN AROUND.
Turn around time is 4 to 5 business days. This is a good faith estimate and depending on circumstances
sometimes beyond my control, it could take a few days longer. I do custom machining on used parts
that sometimes do not cooperate. Turn around time does not include shipping time from you to maxbore and viceversa.
Thank you for understanding.
WARRANTY.
Your throttle body comes back with a limited lifetime warranty on workmanship. Warranty does not cover Sensors.
In order to obtain warranty work, the throttle body must be returned in the same condition it was sent to you.
This warranty will be void if you disassemble, or modify your throttle body in any way.
There will be a flat $50 fee for any repairs on throttle bodies that have been disassembled or modified.
Please email me if you have questions not answered here.
