Rx-8 throttle body
- Thread starter ChrisMcQ
- Start date
1-2 HP is going to be within the measurement accuracy of any dyno. Power likely varies more than that due to fuel quality and ambient temperature alone. IMO, not worth it.
I something I would like to try but being a golfer (which is my day job) my season starts in 2 weeks so won't have time. if it had more gains I would have done it in the last couple weeks. Hey maybe I'll end up doing it in a few months for the hell of it, but not ATM when looking for gains.
Also in my spare time I installed my lowering springs, great mod!
Also in my spare time I installed my lowering springs, great mod!
StrangeP3rm
Member
- :
- Mazda 2 touring
This is the Knight Sports throttle body for the 2 . Not much info and it's in Japanese .
http://www.knightsports.co.jp/product/big_throttle_body_demio/
<a href="http://s69.photobucket.com/albums/i67/p3rm/?action=view¤t=4e8e077d5f2457c1531bce58b74260bc.jpg" target="_blank"><img src="http://i69.photobucket.com/albums/i67/p3rm/4e8e077d5f2457c1531bce58b74260bc.jpg" border="0" alt="Photobucket Pictures, Images and Photos" /></a>
http://www.knightsports.co.jp/product/big_throttle_body_demio/
<a href="http://s69.photobucket.com/albums/i67/p3rm/?action=view¤t=4e8e077d5f2457c1531bce58b74260bc.jpg" target="_blank"><img src="http://i69.photobucket.com/albums/i67/p3rm/4e8e077d5f2457c1531bce58b74260bc.jpg" border="0" alt="Photobucket Pictures, Images and Photos" /></a>
Last edited:
- :
- 2011 Mazda 2 GS
Compatible model DE5FS our mounting monopoly
haha.
haha.
OK Well about 2 weeks before this thread was started I ordered a NC Miata throttle body. It isn't as large as the RX-8, but it is still a lot larger than the M2. To get the numbers, the M2 one is about 1.8" in diameter. The NC Miata is 2.4". The opening in the intake manifold is 2.1" so there really isn't any reason to go any larger than the NC since the intake manifold is your limit. Anyway so I did the things needed to get the NC throttle to fit. I did a number of back to back pulls on the dyno and they were all within 1hp throughout the the entire curve so as we thought there is no gain from the throttle body.
Charley Darwin
Member
Good effort!
Nice!! How was the throttle response though? these are things that a dyno cant tell you.. What other mods do you have?
The throttle response was a little more sensitive, but that was to be expected since a slight crack in a larger throttle will cause more air to go in compared to the same angle with a smaller TB. It wasn't bad. I got used to it after driving about 10 minutes with it.
From looking at the data, the intake manifold with the stock TB see's atmospheric pressure all the way up to redline so the TB is not a restriction. The cams definitely seem to be the restriction for the intake of the engine making power without boost.
From looking at the data, the intake manifold with the stock TB see's atmospheric pressure all the way up to redline so the TB is not a restriction. The cams definitely seem to be the restriction for the intake of the engine making power without boost.
Dynotronics1
Member
- :
- 2011 Mazda2
exhaust is the first cork in the system as the stock manifold is pretty bad.
Second cork is the cams.
ScorpioGTX1
Member
- :
- 2012 Mazda 2 GS M/T
Someone just needs to go full retard and shoehorn the Fiesta ST's engine in our car.
If I win the lottery, it's happening.
If I win the lottery, it's happening.
I like your thinking ^_^
Someone just needs to go full retard and shoehorn the Fiesta ST's engine in our car.
If I win the lottery, it's happening.
How well do you think the M2 would do with a set of these on ?
Shaun....
Might of missed something here so feel free to catch me up to speed but since when did we have an ITB project on here?
