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-   -   Where to remove weight from a track only car? (https://www.miataturbo.net/race-prep-75/where-remove-weight-track-only-car-50385/)

Godless Commie 08-09-2010 12:15 PM

I am surprised no one has mentioned the area between the steering wheel and the driver's seat.

bbundy 08-09-2010 12:41 PM


Originally Posted by Godless Commie (Post 614258)
I am surprised no one has mentioned the area between the steering wheel and the driver's seat.

I swapped to a Canadian Non Airbag column and combo switch and dropped ~4 lbs. The column is lighter the mounting bracket is lighter and there is no knee bolster metal backup plates under the dash.

My car is still heavy it weighed 2283 with no fuel in it and the hard top off. At Packwood national tour this last weekend.

Bob

Godless Commie 08-09-2010 01:12 PM


Originally Posted by bbundy (Post 614274)
I swapped to a Canadian Non Airbag column and combo switch and dropped ~4 lbs. The column is lighter the mounting bracket is lighter and there is no knee bolster metal backup plates under the dash.

My car is still heavy it weighed 2283 with no fuel in it and the hard top off. At Packwood national tour this last weekend.

Bob

I was talking about the sort of padding which resides under the shirt.. :vash:

thagr81 us 08-09-2010 01:23 PM

I was actually going to mention that as well... Also loosing some organs and extremities might help as well.

hustler 08-09-2010 01:44 PM


Originally Posted by old_s13 (Post 614238)
Sounds awesome.



Fat fuck.. haha

At least you discovered the shift key and the "." key.

webby459 08-09-2010 02:24 PM


Originally Posted by bbundy (Post 614274)
Packwood national tour this last weekend.

Bob

Congrats on the win, dude. That was a squeaker! Have fun with those new Hoosiers!

jasonb 08-09-2010 02:32 PM

i'm planning on making a harness from scratch, but since the car has a nissan motor and aim dash, its mostly an exercise in throwing out everything except for lights.

i was looking at these as possibilities:
http://www.amphenol-aerospace.com/circular_hd38999.asp
http://www.fuzeblocks.com/


old s13, do u have any pics of your (i'm assuming) drift s13 harness? i'd like to see that.

thesnowboarder 08-11-2010 02:20 PM


Originally Posted by jasonb (Post 614344)
i'm planning on making a harness from scratch, but since the car has a nissan motor and aim dash, its mostly an exercise in throwing out everything except for lights.

i was looking at these as possibilities:
http://www.amphenol-aerospace.com/circular_hd38999.asp
http://www.fuzeblocks.com/


old s13, do u have any pics of your (i'm assuming) drift s13 harness? i'd like to see that.

That first link has some really sweet plugs, i did a similar thing in my 1990 and love it!

miata2fast 08-11-2010 03:44 PM

Are you wanting to make the dash appear stock?

Here is what I did. Remove the passenger side air bag, unbolt the lid, and then glue the lid back to the dash. It will look bone stock. I removed the driver side as well, but I assume you will have an aftermarket wheel. The passanger air bag is seriously heavy. You can do the same thing to the glove box, remove the outer skin, and bolt the bottom hinge back to the dash. The latch is attached to the skin, and you will still be able to latch it, and when you are finished it will look stock. You can then put components that need adjustment like ecu or my Electromotive under the dash for easy access.

After I removed all of the a/c and heater components, unnecessary wiring, airbags, and glove box; the dash wieghed about 15 lbs or so. It was a lot work, but looks much better than an aluminum dash. All of my gauges still work too.

When I removed the dash to strip it, it was all I could do to muscle it out by myself. When I put it back in, the difference was incredible.

If you have an early year Miata, one of the motor mounts is a heavy cast peice. Replace it with a later year stamped steal one. I cut holes in both of my motor mounts to make them lighter. I will get a pic of it.

Another trick is to get rid of the fancy alternator tensioner, and cut the bracket in half. I will get a pic of that too.

I removed the parking brake, and even cut out the brackets that held the cable under the car. (I wish I had not done that) Get hood pins, and get rid of the cable and brackets under the dash and hood, and get rid of the hood prop. Hood props belong in the tow vehicle with your tools.

If I think of other things I did, I will post them.

thasac 08-11-2010 04:41 PM

Toss the headlight motors?

It seems you could easily fabricate a manual method to raising and locking the headlight frame in place (assuming you still have yours) e.g. - a removable pin.

In fact, if my memory serves me right there's a guy with the user name 'Adore' who removed his motors but has some sort of manual method to raising and locking his lights.

-Zach

Mr.JayDeeM 08-12-2010 11:43 PM


Originally Posted by miata2fast (Post 615522)
Are you wanting to make the dash appear stock?

Here is what I did. Remove the passenger side air bag, unbolt the lid, and then glue the lid back to the dash. It will look bone stock. I removed the driver side as well, but I assume you will have an aftermarket wheel. The passanger air bag is seriously heavy. You can do the same thing to the glove box, remove the outer skin, and bolt the bottom hinge back to the dash. The latch is attached to the skin, and you will still be able to latch it, and when you are finished it will look stock. You can then put components that need adjustment like ecu or my Electromotive under the dash for easy access.

After I removed all of the a/c and heater components, unnecessary wiring, airbags, and glove box; the dash wieghed about 15 lbs or so. It was a lot work, but looks much better than an aluminum dash. All of my gauges still work too.

When I removed the dash to strip it, it was all I could do to muscle it out by myself. When I put it back in, the difference was incredible.

If you have an early year Miata, one of the motor mounts is a heavy cast peice. Replace it with a later year stamped steal one. I cut holes in both of my motor mounts to make them lighter. I will get a pic of it.

Another trick is to get rid of the fancy alternator tensioner, and cut the bracket in half. I will get a pic of that too.

I removed the parking brake, and even cut out the brackets that held the cable under the car. (I wish I had not done that) Get hood pins, and get rid of the cable and brackets under the dash and hood, and get rid of the hood prop. Hood props belong in the tow vehicle with your tools.

If I think of other things I did, I will post them.

Never knew about the glove box idea. I like it since I never use my glove box at all.

Savington 08-13-2010 02:42 AM

One thing my car still has is the parking brake. I lost the front brakes last year (back when they were stock) at Thunderhill and the e-brake kept me from going into a tire wall. No matter what it weighs, for me it's a safety item.

hustler 08-13-2010 09:37 AM


Originally Posted by Savington (Post 616212)
One thing my car still has is the parking brake. I lost the front brakes last year (back when they were stock) at Thunderhill and the e-brake kept me from going into a tire wall. No matter what it weighs, for me it's a safety item.

I went on this "park brake salvation" train a few months ago at about 130mph. If I didn't have that brake, I'd be in a different car today at the least. Suddenly the "stupidity" of a drum brake inside the rotor like a Mustang or Lexus doesn't sound so "stupid" if you ask me.

ZX-Tex 08-13-2010 11:50 AM

Yeah the e-brake would not be a good thing to get rid of in my opinion.
In the CMRA (motorcycle road racing) they require all bikes to have rear brakes even though most people, even the fast guys, never touch them. It is effectively an emergency brake unless you have God-like riding skillz.

olderguy 08-13-2010 01:19 PM

I can't do it because I'm old and uncoordinated, but I know one top driver that uses the E brake for control. I see no mention of this above.

spoolin2bars 08-13-2010 01:46 PM


Originally Posted by olderguy (Post 616375)
I can't do it because I'm old and uncoordinated, but I know one top driver that uses the E brake for control. I see no mention of this above.

because this thread isn't about driving technique, it's about removing weight.
i removed lbs. worth of brackets and bolts under the hood. including the washer bottle and heavy bracket that held it and the fuse box. i now just have a small alum. tab holding the fuse box. also part of my winter remodeling will include replacing my heavy steel i/c pipes with an aluminum otr pipng setup, and replace the cat-back exh. pipe with aluminum.

on the wiring, i wish i could have this guy make me a new harness!

http://rywire.com/store/replacement-...ess-p-245.html

02semiata 08-13-2010 06:28 PM


Originally Posted by ZX-Tex (Post 616336)
Yeah the e-brake would not be a good thing to get rid of in my opinion.
In the CMRA (motorcycle road racing) they require all bikes to have rear brakes even though most people, even the fast guys, never touch them. It is effectively an emergency brake unless you have God-like riding skillz.

Just wondering is that true of the top level riders like moto gp. Sorry to get off topic lol

Stealth97 08-13-2010 07:08 PM

Some of the stuff I have done in my street car...
swap in 1.6 dash
remove radio
remove air bag system
remove wiring for above
remove power antenna
remove power steering
remove hood latch and cable, replace with pins
remove cruise control
remove cockpit brace, replaced with rollbar + weight, I know
drilled holes in cast A/C bracket
remove windshield sprayers/reservior
replace fuse box bracket w/aluminum tube
radio bracket behind dash removed
removed defroster wiring
probably other stuff I forgot

some time in the future I'd like to look into a lighter drivers seat, and manually raised/lowered headlights. I require A/C for a street car so that's not going anywhere.

curly 08-13-2010 07:21 PM


Originally Posted by spoolin2bars (Post 616387)
...heavy bracket that held it and the fuse box. i now just have a small alum. tab holding the fuse box...


Originally Posted by Stealth97 (Post 616528)
...replace fuse box bracket w/aluminum tube...

More pics of these please.

Stealth97 08-13-2010 07:26 PM

2 Attachment(s)

Originally Posted by curly (Post 616537)
More pics of these please.

Attachment 195195

This is a crude pic, since this was taken I have got everything bolted down and made a nice filler panel from ABS to cover the wiring below.

tucks it out of the way nicely, leaves room to mount something like aftermarket coils, etc. I guess the the "nawwwsss" overflow bottle saves an ounce or two, so does ditching the charcoal canister.

Attachment 195196


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