Mazda Rotary Club

Cars by Model Type => 2nd generation RX-7's => Topic started by: rxv8 on December 23, 2008, 03:28:40 PM

Title: how heavy is the fc range...
Post by: rxv8 on December 23, 2008, 03:28:40 PM
cant find anything on weights...
Title: how heavy is the fc range...
Post by: BlitzBoy on December 23, 2008, 03:33:35 PM
depends on the trim levels aprrox 1255kgs or higher
Title: how heavy is the fc range...
Post by: rxv8 on December 23, 2008, 03:45:54 PM
whats the lightest one to get then???i was told they are the heavist of the range and are 1600kgs...is the fd alot lighter...
Title: how heavy is the fc range...
Post by: BlitzBoy on December 23, 2008, 03:57:01 PM
Probably the base NA Coupe series 4 version approx 1200kgs, I dont think even the cabrio Turbo II was that heavy at 1600 more like 1400kgs, the FD is around 1230 to 1350 depending on trim and equipment
Title: how heavy is the fc range...
Post by: rxv8 on December 23, 2008, 04:07:19 PM
ok thanks blitz boy...any ideas why the fc t 2 is heavier then...as was going to look for a t2 as a base project...any one got one with no motor or g/box...
Title: how heavy is the fc range...
Post by: Prof on December 23, 2008, 04:12:35 PM
they are heavier because they are harder to break ;)
 
The suspension, floor pan, pedals - everything went on a diet for the FD.
 
The heaviest is the cab at 1420 KG\'s dry weight.  We do seem to get through fewer diffs and drive shafts than the FD boys.  Coupe version is the lightest - if you strip a lot of stuff out of it you can lighten it up by quite a bit - but you\'ll be 100-200 Kg\'s heavier than an FD that\'s had the same \'diet\'.
Title: how heavy is the fc range...
Post by: dthebuk on December 23, 2008, 04:49:11 PM
i thought the Cab was lighter? with it aluminium body pannels n that. or was that just the bonnet?
Title: how heavy is the fc range...
Post by: m1tch on December 23, 2008, 06:06:54 PM
Coupe is lighter :D hence I got that lol :D cause the cab has no roof, mazda have added a lot of extra supports to make up for it, its why cabs don\'t rust as much as coupes, cause they have extra floor plates etc
Title: how heavy is the fc range...
Post by: pdtaylor18 on December 23, 2008, 06:16:11 PM
But yes the cabs did get a super lightweight bonnet.  Unless you are doing anything performance wise dont worry about the weight too much, you can compensate for it in various ways !! Bigger turbo, mappable ECU etc.
If however weight is the main issue then plenty of ways to shred the weight, ,loads of CF products out there, lighter wheels etc will all help.
Title: how heavy is the fc range...
Post by: Prof on December 23, 2008, 07:36:13 PM
Including removing \'unecessary parts\' of the engine - air pump, emissions, vac rack stuff - that lot probably adds up to 50-100 Kg\'s
Title: how heavy is the fc range...
Post by: Jimi_Hendrix on December 24, 2008, 04:38:35 PM
Quote from: Prof;568157Including removing \'unecessary parts\' of the engine - air pump, emissions, vac rack stuff - that lot probably adds up to 50-100 Kg\'s

Whats all that? I know you can bin the aircon and i\'m going to do that, Was even thinking of gettin\' rid of the Power steering.
 
But you can bin the air pump and Vac rack? What do they do?
Title: how heavy is the fc range...
Post by: dthebuk on December 24, 2008, 05:40:08 PM
air pump takes air from te air box and pumps it into the exhasut.

So it actually takes away some of the air going into the engine. Plus it weighs a bit.

dunno what the vac rack even is.
Title: how heavy is the fc range...
Post by: Jimi_Hendrix on December 24, 2008, 05:44:45 PM
Quote from: dthebuk;568377air pump takes air from te air box and pumps it into the exhasut.

I see, whats the purpouse of that, something to do with emitions? Or mabey cooling the exhaust gas?
Title: how heavy is the fc range...
Post by: richrx on December 24, 2008, 09:02:47 PM
according to a book i have the weights are

t2 coupe is 1256 kgs

vert 1420 kgs

n/a 1202 kgs

i think there dry weights tho

richard
Title: how heavy is the fc range...
Post by: dthebuk on December 24, 2008, 09:19:39 PM
Quote from: Jimi_Hendrix;568378I see, whats the purpouse of that, something to do with emitions? Or mabey cooling the exhaust gas?

yup purely for emissions...thats why ive binned mine :D
Title: how heavy is the fc range...
Post by: TiddlesRX7 on December 24, 2008, 09:42:48 PM
Yeah the air pump is to do with the emissions if you\'ve got a stock intake and exhaust. It pumps air into the stock exhaust before the cat to help with the emissions. I\'m gonna remove mine this year. its one of my many goals im gonna hit that i\'ve never got round to doing.



You don\'t know how long that took to wright. I\'m so drunk right now. Merry Christmas!
Title: how heavy is the fc range...
Post by: Jimi_Hendrix on December 24, 2008, 11:00:07 PM
Quote from: adereed;568421You don\'t know how long that took to wright. I\'m so drunk right now. Merry Christmas!

Ha ha! Thats the way things ought to be in the festive season! Full of.... ahem, christmas cheer! Lol! Have a gud un guys!
Title: how heavy is the fc range...
Post by: Prof on January 01, 2009, 10:24:23 PM
Sorry been away a while :) -  The \'Vac Rack\' is all the metal vac pipes that sit under the manifold.  Once you remove the emissions stuff, virtually all of it is redundant and can be removed.  At the most basic, you need only the fuel lines (can run seperate braided ones, so the stock piping can go), a vacuum line to the fuel pressure regulator, and the oil feed to the turbo.  The rest of the piping and the solenoids can be removed - they weigh in at about 2-3 Kg\'s - not much weight but it simplifies things to get rid of them.
Title: how heavy is the fc range...
Post by: m1tch on January 01, 2009, 10:25:44 PM
Quote from: Prof;570393Sorry been away a while :) -  The \'Vac Rack\' is all the metal vac pipes that sit under the manifold.  Once you remove the emissions stuff, virtually all of it is redundant and can be removed.  At the most basic, you need only the fuel lines (can run seperate braided ones, so the stock piping can go), a vacuum line to the fuel pressure regulator, and the oil feed to the turbo.  The rest of the piping and the solenoids can be removed - they weigh in at about 2-3 Kg\'s - not much weight but it simplifies things to get rid of them.

I have seen whats left of Prof\'s vac rack....its been condensed to about 1 pipe lol :D