Q & A
What parts are involved in this conversion? Our JV6
Kit includes all of the major custom components that you will require (even the hard to find
hardware) less the engine, wiring harness, computer, and cooling duct
work (which we will offer soon).
What year Miatas will work with this conversion?
All NA and NB Miatas from 1990 to 2005 can be used.
What makes the JV6 Kit 'Cost Effective'? The
reason we claim that this conversion is cost effective is
because of how few of components it takes to do this conversion.
On top of the JV6 Kit, all you will need is the Honda J
engine (which is inexpensive) and a computer.
Can I use the stock Honda computer? You can use
the stock Honda computer to run the car only. It will default
into 'limp mode' which disables VTEC and restricts full RPM
range, but is certainly drivable. We are currently teaming up
with some Honda tuning specialist and working to offer a
computer service to modify the stock ecu's to work with full
What transmission is to be used? Our demo JV6
Miata is using the factory 1990 Miata transmission that was
originally in the car with 212,000 miles. Any of the Miata
transmissions will work with this conversion 1990-2005. We recommend a
good condition transmission.
What rear end is to be used? Our demo JV6 Miata is
using the factory 1990 Miata rear differential with over 212,000
miles. The perferred rear diff is the 7" from 1994+ models.
Do I need a new radiator? No, the Honda J
engines run cool as a pickle even using the factory Miata radiator (around
Is there any cutting required for this conversion?
There is no cutting required on the body. You will be required
to cut a small slot on the Miata transmission for the starter
(template included with kit), and the intake manifold will need
to be cut and modified. This is a service that we offer if
What engines can be used?
Any 1999-2007 Honda J engine will
mate to our JV6 plate. The wiring harness and sensors that will
work must be used from the following vehicles: 1999-2002 Honda
Accord V6 J30A1, 1999 Acura Cl 3.0L J30A, 2001-2003 Acura CL
3.2L J32A1 (automatic harness only), 1999-2003 Acura TL 3.2L
J32A1, 2002-2003 Acura CL/TL 3.2L Type S J32A2 (automatic
harness only), and 2002-2004 Honda Odyssey 3.5L J35A4.
Can I still have A/C? Yes. You will need the
Honda A/C compressor, but this will adapt to the Miata system
Can I still have Power steering? Yes, you will
be able to easily adapt the Honda PS pump (instructions included
How much is the weight difference in this conversion
than a stock Miata? After converting our 1999 Miata to
Honda V6 power using our JV6 Kit, the total car weight gain was
less than 9 pounds.
Is this car going to 'rock my world'? Probably.
Everyone that has test driven our demo JV6 Miata Love's It!
JV6 INSTALLATION GUIDE PDF
*The JV6 conversion may not meet all of the emission standards
in your region. Please check with the local DMV in your area for
any list of regulations of your make/model/year vehicle prior to
doing this conversion.