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Mazda Rotary Club

Cars by Model Type => 3rd generation RX-7's => Topic started by: antnicuk on March 05, 2007, 11:13:08 AM

Poll
Question: How Much Do You Think the 20 FD Weighs
Option 1: 200 - 1300 KG\'s votes: 12
Option 2: 301 - 1400 KG\'s votes: 23
Option 3: 401 - 1500 KG\'s votes: 16
Option 4: 501 or over votes: 6
Title: How Much Do You Think The 20B FD Weighs
Post by: antnicuk on March 05, 2007, 11:13:08 AM
We had the 20B FD weighed on a Weigh Bridge

What do you think it weighs?

Full veilside kit
20B single Turbo Engine
Stock FD gearbox/diff etc
19" wheels
Big Front Brakes
12" sub and 2 amps
Custom Ali Fuel Tank
Stock Bonnet (atm)
Title: How Much Do You Think The 20B FD Weighs
Post by: ttpower on March 05, 2007, 11:15:30 AM
1200kg :3Confused
Title: How Much Do You Think The 20B FD Weighs
Post by: TRex on March 05, 2007, 11:19:56 AM
Hmmmm should I?...... :rolleyes:
Title: How Much Do You Think The 20B FD Weighs
Post by: antnicuk on March 05, 2007, 11:28:19 AM
oi you,  shut it!
Title: How Much Do You Think The 20B FD Weighs
Post by: 666FLO on March 05, 2007, 11:30:11 AM
I picked the last one as I\'ve no idea... :)
Title: How Much Do You Think The 20B FD Weighs
Post by: ttpower on March 05, 2007, 11:31:31 AM
whats the prize to be won!!! :p
Title: How Much Do You Think The 20B FD Weighs
Post by: antnicuk on March 05, 2007, 11:32:51 AM
the winner will get a smilley  just like this one   :)
Title: How Much Do You Think The 20B FD Weighs
Post by: TRex on March 05, 2007, 11:35:57 AM
Crap prize... I think I\'ll tell... :spank
Title: How Much Do You Think The 20B FD Weighs
Post by: Spartacus on March 05, 2007, 11:37:12 AM
Alot more than a V8 ???:chat
Title: How Much Do You Think The 20B FD Weighs
Post by: ttpower on March 05, 2007, 11:38:39 AM
Quote from: TRexCrap prize... I think I\'ll tell... :spank

maybe there might be better offer :2eek :2eek :2eek
Title: How Much Do You Think The 20B FD Weighs
Post by: sadgoth on March 05, 2007, 11:55:38 AM
I\'d say somewhere in the 1201-1300 as the stck FD weighs in at the mid 1200s and the 20b is about 1/2 the weight again of the 13bREW. Well tha\'s my logic anyway!
Title: How Much Do You Think The 20B FD Weighs
Post by: 20B_boy on March 05, 2007, 11:59:29 AM
I\'ll go 1398!
Title: How Much Do You Think The 20B FD Weighs
Post by: 20B_boy on March 05, 2007, 12:00:02 PM
Quote from: sadgothI\'d say somewhere in the 1201-1300 as the stck FD weighs in at the mid 1200s and the 20b is about 1/2 the weight again of the 13bREW. Well tha\'s my logic anyway!
You havent seen all the other **** inside it!
Title: How Much Do You Think The 20B FD Weighs
Post by: Bramble on March 05, 2007, 12:22:33 PM
1369kgs

I reckon.
Title: How Much Do You Think The 20B FD Weighs
Post by: Jono FD3 on March 05, 2007, 12:26:40 PM
When do we find out???
Id say close to 1350 Kg

Jono
Title: How Much Do You Think The 20B FD Weighs
Post by: antnicuk on March 05, 2007, 12:31:03 PM
i\'ll give it a few more hours.........
Title: How Much Do You Think The 20B FD Weighs
Post by: markrx7 on March 05, 2007, 01:25:55 PM
1380!

is my guess...
Title: How Much Do You Think The 20B FD Weighs
Post by: ace-rx7 on March 05, 2007, 01:32:13 PM
what was the tolerance of the weightbridge ? +- 10 or 20kg :xconfused
 
but i will guess at 1420kg if you have some ice in the back :D
Title: How Much Do You Think The 20B FD Weighs
Post by: FD3SNuttah on March 05, 2007, 02:10:29 PM
i guess 1300kgs.
Title: How Much Do You Think The 20B FD Weighs
Post by: K1HKS arse on March 05, 2007, 02:15:16 PM
1365kg?????????????
Title: How Much Do You Think The 20B FD Weighs
Post by: AndyGen3 on March 05, 2007, 02:19:32 PM
I voted 1501 or over..

Sure the standard 13B weighs nearly the same as a small block V8...
Title: How Much Do You Think The 20B FD Weighs
Post by: BlitzBoy on March 05, 2007, 02:23:22 PM
Quote from: AndyGen3I voted 1501 or over..

Sure the standard 13B weighs nearly the same as a small block V8...
naaaaaa
 I managed to pick up and move a 13B (approx 75 kilos) a few inches, no chance with an old rover ali v8 i had
Title: How Much Do You Think The 20B FD Weighs
Post by: Prof on March 05, 2007, 02:25:41 PM
I\'d say just over 1401 Kg\'s - given that a stock FD with 13B-REW is between 1150-1300 depending on what\'s in the car  - you\'ve got an extra housing, more pipework for the exhaust (heavy) and for the throttle bodies, plus being a 20b you are going to need bigger tubby, bigger pipes, rad etc. - Plus there\'s more coolant in the engine - LOL.  That\'s my logic anyhoo - I\'d say 1435Kg\'s on the nose. :Thumbsup!
Title: How Much Do You Think The 20B FD Weighs
Post by: AndyGen3 on March 05, 2007, 02:53:27 PM
Quote from: BlitzBoynaaaaaa
 I managed to pick up and move a 13B (approx 75 kilos) a few inches, no chance with an old rover ali v8 i had


Only coz of its size... If the V8 was compact like the 13B it wud be handy to lift too...
Title: How Much Do You Think The 20B FD Weighs
Post by: TwistedHumour on March 05, 2007, 03:24:58 PM
I\'m going with 1342 :bandit
Title: How Much Do You Think The 20B FD Weighs
Post by: antnicuk on March 05, 2007, 03:29:16 PM
can i just mention its a 3 rotor not a V8,  not sure where the V8 comes into it.
Title: How Much Do You Think The 20B FD Weighs
Post by: antnicuk on March 05, 2007, 04:28:43 PM
It weighed a HUGE  1530 KG\'s.......................
Title: How Much Do You Think The 20B FD Weighs
Post by: sadgoth on March 05, 2007, 04:39:12 PM
I\'m guessing that was with you in it eh? lol
Title: How Much Do You Think The 20B FD Weighs
Post by: Prof on March 05, 2007, 04:40:28 PM
Quote from: antnicukIt weighed a HUGE 1530 KG\'s.......................

Still lighter than my topless tank! :driving :rollin
Title: How Much Do You Think The 20B FD Weighs
Post by: Spartacus on March 05, 2007, 04:46:13 PM
Quote from: antnicukIt weighed a HUGE  1530 KG\'s.......................

Now that is alot more than a V8 fd, how does it handle?
Title: How Much Do You Think The 20B FD Weighs
Post by: antnicuk on March 05, 2007, 04:49:18 PM
it actually handles very well on the road, not had a chance to put it on a track yet but it was only every meant for the street.   Its was 1620 with my 14 stone cousin in it.  I\'m not sure how much fuel was in it.
Title: How Much Do You Think The 20B FD Weighs
Post by: BlitzBoy on March 05, 2007, 05:36:37 PM
Quote from: AndyGen3Only coz of its size... If the V8 was compact like the 13B it wud be handy to lift too...

Ahh Andy Andy you are wrong, anyways I did lift engine with the flywheel off .

With both Engines with manifolds/flywheel/water pump housing and stuff the 2 rotor is soooo much lighter then an LS1 Hell even the 3 rotor is the same weight as the LS1 V8

here are the figures read em and weep

LS1 V8 480lbs.  

Mazda rotary 2 rotor, 285lbs
Mazda rotary 3 rotor, 480lbs
Title: How Much Do You Think The 20B FD Weighs
Post by: banned advertiser on March 05, 2007, 05:57:13 PM
where this huge difference come from, block itself (20b) can only be 30kg heavier? than twin (13b)
Title: How Much Do You Think The 20B FD Weighs
Post by: BlitzBoy on March 05, 2007, 06:04:44 PM
those weights are taken with Plenums\\manifolds, turbos I believe, water pumps housings etc so I suppose you got to factor that in on 3 rotor
Title: How Much Do You Think The 20B FD Weighs
Post by: banned advertiser on March 05, 2007, 06:07:54 PM
But Tonys car was 170kg heavier than stock take driver out still 100kg heavier than stock
Title: How Much Do You Think The 20B FD Weighs
Post by: BlitzBoy on March 05, 2007, 06:32:29 PM
haha have u seen that bloody stereo in the back of Tonys triple????!!!!!!
Disco on Wheels, plus they have a variety of larger coolers at the front of the car as well
Title: How Much Do You Think The 20B FD Weighs
Post by: antnicuk on March 05, 2007, 06:57:20 PM
i have never seen a definate figure for the weight of an FD but i think the tripple is defo more than 100 kg heavier even without the driver.  

I think people will be suprised how much their cars weigh if they took them to a weigh bridge.

On the V8 subject,  if you look at Granny speed they give you some figures,  the LS1 is 50 lbs heavier than a Turbo II set up and the same as a Twin Turbo,   the book i am looking at says LS1 is 430lbs for a complete block,  gotta remember that their inlet is nylon and only weighs 3lbs.  The LS/1 has no oil coolers and no intercooler or pipe work,  also the sump is ali.
Title: How Much Do You Think The 20B FD Weighs
Post by: Spartacus on March 05, 2007, 07:09:40 PM
Found this else where:

"Weighed my LS6 FD"

I had my car corner weighted at an autox test and tune day (it was a private event and not affiliated with SCCA so it was TONS of fun). Anyway with the spare and jack in, 3/4 a tank of gas the weights are as follows:

2808 total = 1274 kilos
50.8% Front / Rear
49.7% Left / Right
Title: How Much Do You Think The 20B FD Weighs
Post by: antnicuk on March 05, 2007, 07:26:10 PM
thats interesting but i would guess that its a stripped out track car from what he has said.
Title: How Much Do You Think The 20B FD Weighs
Post by: Spartacus on March 05, 2007, 08:59:46 PM
Funny enough his next post was
"Absolutely no type of weight reduction done. Full working stereo and CD player in the car as well. Like I said, only removed PS pump which at best is 10 lbs. The brackets are Aluminum."
Title: How Much Do You Think The 20B FD Weighs
Post by: BlitzBoy on March 05, 2007, 10:19:37 PM
hmm I find that hard to believe about the weight of American guys FD, Im sure we can get the guys in this country with the RX7 V8s to weigh their cars

A stock FD weighs in at 1270-80 Type R/RS/RZ 1310 for the type X.
A modified Single turbo gets rid of the heavy twin turbo pack so it will be lighter still.

The Oz special the "SP" version weighed in at 1219, thats was with various lightweight body parts
Title: How Much Do You Think The 20B FD Weighs
Post by: 20B_boy on March 05, 2007, 10:30:22 PM
My blue one and max\'s silver one were in the 1250 bracket (one about 10kg each side) on a set of brand new corner weights. Both single turbo, missing a bit of interior and with half cages.
Title: How Much Do You Think The 20B FD Weighs
Post by: Spartacus on March 06, 2007, 09:21:44 AM
Quote from: BlitzBoyhmm I find that hard to believe about the weight of American guys FD, Im sure we can get the guys in this country with the RX7 V8s to weigh their cars

A stock FD weighs in at 1270-80 Type R/RS/RZ 1310 for the type X.
A modified Single turbo gets rid of the heavy twin turbo pack so it will be lighter still.

The Oz special the "SP" version weighed in at 1219, thats was with various lightweight body parts

I agree, it does sound very optimistic but I just cut and paste as I find.:Typing
Title: How Much Do You Think The 20B FD Weighs
Post by: Ricco_04 on March 06, 2007, 10:38:03 PM
Wow, I didn\'t think it would be any where near that much! :eek
Title: How Much Do You Think The 20B FD Weighs
Post by: Spartacus on March 10, 2007, 10:38:03 AM
Don\'t laugh but I have a plan. As I\'m about to take my fd engine out I\'m going out and buy 2 bathroom sclaes put a bit of wood across them and weigh the engine with all of it\'s ancillaries. I\'ll let you know how I get on next week:evillaugh
Title: How Much Do You Think The 20B FD Weighs
Post by: Spartacus on March 12, 2007, 06:12:26 PM
Right, the weight of my fd engine, taken out today with all ancillaries is...........................................179kg or 395 pounds. the auto gearbox is 90kg or 198 pounds, as a package, 269kg or 593 pounds.
Title: How Much Do You Think The 20B FD Weighs
Post by: carlos on March 12, 2007, 07:18:11 PM
Quote from: antnicukit actualwith my 14 stone cousin in it
lol u wait till i c dave!
Title: How Much Do You Think The 20B FD Weighs
Post by: antnicuk on March 12, 2007, 07:19:46 PM
we are at woodbridge in the tripple this weekend if you fancy spectating/passenger
Title: How Much Do You Think The 20B FD Weighs
Post by: stylus350 on March 12, 2007, 07:41:15 PM
Quote from: SpartacusRight, the weight of my fd engine, taken out today with all ancillaries is...........................................179kg or 395 pounds. the auto gearbox is 90kg or 198 pounds, as a package, 269kg or 593 pounds.

Have you go the specs of the LS engine/box weight?
Title: How Much Do You Think The 20B FD Weighs
Post by: Spartacus on March 12, 2007, 07:45:51 PM
Quote from: stylus350Have you go the specs of the LS engine/box weight?

Not yet but I have got one on it\'s way over from the US, So when it arrives I will. Just for my own records I\'ll weigh everything else I\'ve taken off the car too, like PPF, intercooler etc etc, then weigh everything I put back on.
Title: How Much Do You Think The 20B FD Weighs
Post by: stylus350 on March 12, 2007, 07:56:25 PM
Quote from: SpartacusNot yet but I have got one on it\'s way over from the US, So when it arrives I will. Just for my own records I\'ll weigh everything else I\'ve taken off the car too, like PPF, intercooler etc etc, then weigh everything I put back on.

Good idea! :)
Title: How Much Do You Think The 20B FD Weighs
Post by: AtomicRex on May 23, 2007, 09:10:28 PM
I win at 934kgs!!!

Or 1043 with me and 25kgs of fuel!

:D :D :D
Title: How much!!!!!!
Post by: normski on May 24, 2007, 04:04:48 PM
Quote from: antnicukIt weighed a HUGE  1530 KG\'s.......................


That means my one should be something similar then. :3Confused  Did you take your tool box out of the car first?:evillaugh

Have you run any times down the strip yet? or best guesses
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