Welcome to my webpage.
Last updated 16th April 2006
Hey guys, this site has not been upated in a very very long time!
But, I still have the little red rocket after over 7 years. She now has a full roll cage and
I've been competing in some dual car sprinting just to cut my teeth
on some motorsport.
Success for my first year saw me come 1st equal for my catagory.
The motor is still the same stock porting, turbos and fuel system.
I've done all my own tuning with Datalogit using a Techedge wide band O2 sensor.
This page is dedicated to my RX-7 FD3S project
(Japanese spec R1).
Above pic is with my new 17" Mazda RS wheels.
Favourate Links last updated 5th July 1999
I belong the the New Zealand FD Kai (Club), check it
My RX-7 Project Goals are
To reduce the compromises that make the RX-7 a high performance street car into making it a true super car and track car, by improving power and handling, but limited to a budget.
To limit the engine modifications by the upper limits of the stock fuel and turbo systems. This will put a natural cap on money spent, but will produce super car performance capable of 0-100Km times in the 4's and ¼ mile times in the 12's.
The story so
I suspect that the backfiring is a combination of too rich, and not enough spark. I will try new HT leads, but think that I will need a serious spark generator (back to the shopping list :-) the fact is that when you push up boost, you need to either close the gap on the plugs (hard to do on a surface discharge plug), or preferably put more energy into the spark!
Result is smooth running all the way to the red line!!! At 16+ psi the car kicks ass. I have not done any Gtech-pro runs yet (stay tuned), but the next problem is heat. After a few WOT runs the power delivery becomes less as the manifold temp goes up.
By including water injection into the manifold I am able to get repeatable horse power runs without the power robbing heat soak that I had before.
Horse power as measured by the Gtech-pro using the same base lines as before is now 374. I'm guessing that that is a pretty good estimate at the flywheel horse power based on running 17 psi boost, but I plan on a proper dyno run to effectively calibrate my Gtech-pro tests.
After 7 years!
Being a Japanese spec car,
you have to be careful about ordering parts over the internet.
Most vendors are US based. For example the down pipe needs to be specific to
the car as the steering shaft gets in the way on a right hand drive car!
learnt so far....
This is not an FAQ, but some useful tips based on my experience
doing the modifications to my car.
E-mail me at stephenm (stop spam) clear net nz
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