Weight of the components for the Ultima GTR
Weight of the components for the Ultima GTR
Author
Discussion

d3vine

Original Poster:

699 posts

297 months

Wednesday 10th December 2003
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Does anyone know the exact weight of the chassis, standard body and lightweight body, and any other parts that dramatically adds extra weight to the car?

Stig

11,823 posts

313 months

Wednesday 10th December 2003
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The factory I would imagine!

mkoch1

486 posts

288 months

Wednesday 10th December 2003
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Here are some of the parts.

front rotors 16 lbs each
front calipers 3.5 lbs each
rear rotors 19 lbs each
rear calipers 6 lbs each
parking brake 3 lbs each
seats + sliders (each) 21 lbs
Side pods (each) 15 lbs
Dash 28 lbs
Us full windshield 33 lbs
Radiator (4 X 11 3/4 X 31.5) 35 lbs
g50/50 dry 156 lbs
Rear Rims (each) 30 lbs
Front Rims (each) 17 lbs
Front Tires (each) 26 lbs
Rear Tires (each) 32 lbs

mark

d3vine

Original Poster:

699 posts

297 months

Wednesday 10th December 2003
quotequote all

I have added the weight of accessories/parts listed below and also added an extra 250 lbs for the chassis, 200 lbs for fuel, and 350 lbs for an chevy 350 sbc engine (aluminum block). It isn't even near 1900 lbs. So what other parts that are adding additional weight to the car?

Ultimasimon

9,646 posts

287 months

Wednesday 10th December 2003
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Bodywork, gearbox, radiator and oil coolers are all quite weighty when added together.

BobM

944 posts

284 months

Wednesday 10th December 2003
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d3vine said:
So what other parts that are adding additional weight to the car?
Other heavy parts include:
  • steering rack and column

  • drive shafts

  • exhaust system

  • bodywork

  • ... and all those rivets

BigAl1

166 posts

281 months

Wednesday 10th December 2003
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Seats, suspension, shocks/springs, electrical system, fuel system, ally paneling. Oz by oz it all adds up!

mkoch1

486 posts

288 months

Wednesday 10th December 2003
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Had a few more I didn't list

Front uppers wishbone 3 lbs R + 3 lbs L
Front lowers wishbone 4 lbs R + 4 lbs L

Rear uppers wishbone 2 lbs R + 2 lbs L
Rear lowers wishbone 4.5 lbs R + 4.5 lbs L
Front hubs 12 lbs R + 12 lbs L

mark

jschwartz

836 posts

287 months

Thursday 11th December 2003
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My components total up to 2210 with full petrol tanks,
w/ alum LS6 and full carbon interior panels / floor.
jeff schwartz

jschwartz

836 posts

287 months

Thursday 11th December 2003
quotequote all
My components total up to 2210 with full petrol tanks,
w/ alum LS6 and full carbon interior panels / floor.
jeff schwartz

Alan 2

162 posts

293 months

Thursday 11th December 2003
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d3vine said:

I have added the weight of accessories/parts listed below and also added an extra 250 lbs for the chassis


I rigged up a method to weigh my GTR chassis (full RAC roll cage) and it came out at 290 lbs. 133 on the front and 157 on the rear.

gtr-gaz

5,281 posts

275 months

Thursday 11th December 2003
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Don't forget the air con if fitted.
That's a fair bit of weight on it's own.

Gary.

d3vine

Original Poster:

699 posts

297 months

Thursday 11th December 2003
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I have talked to Ted Marlow about a lightweight body for the GTR. He said, it's a difference of 45Kg or so from the standard body. Has anyone bought this lightweight body with their kit?

The standard body cost about 7k USD. How much is it for the lightweight version?

Does anyone think if it's possible to bring down the weight of the GTR by another 200 Kg? Let's say going with the lightweight body, using half a tank of fuel instead of full. Going with carbon fibre paneling instead of aluminum. Titanium exhaust instead of stainless steal. Magnesium wheels. And other little things like brakes in carbon fibre, and so forth to bring the weight down some more... Of course, going with an aluminum block for the chevy sbc engine, other lightweight titanium parts for the engine... Some guy on here talked about a sbc engine weighing about 150 Kg.

Anyone thought about going this route? Using different components from the standard factory parts to lighten their car.

Lastly, what kit stages should I go for? I am definitely going with stage 1 and the body (lightweight version, prefitted. What other stages should I go for to get to a rolling chassis? I'll be using my own brakes, and wheels...


Steve_D

13,801 posts

287 months

Thursday 11th December 2003
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Can I ask why?
Steve

d3vine

Original Poster:

699 posts

297 months

Thursday 11th December 2003
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What's wrong with a lighter car?

Steve_D

13,801 posts

287 months

Thursday 11th December 2003
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Nothing wrong with a lighter car but at what cost for what gain.
If this is to be a pure track car then I could perhaps understand because reduced kilos could produce valuable tenths of seconds.
If its a road car then you will spend many many thousands of £ more for what would be a difficult to quantify gain.
Steve

d3vine

Original Poster:

699 posts

297 months

Thursday 11th December 2003
quotequote all

I'll be using it mostly for street racing. But I would prefer a lighter car. If in the future, I feel the need to play on the track then it would be beneficial on both ends.

I could afford few things listed above. I would start with the lightweight body, wheels, panels, and few other things. The engine would come last though. Just wanted to know if anyone went with the lightweight body and other lightweight items for decreasing the weight of their GTR.

Stig

11,823 posts

313 months

Friday 12th December 2003
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Bit confused why, if you spoke to Ted, you didn't ask him how much the lightweight body costs!

'Street racing' - what's that then? It's illegal in the UK.

In theory, you could shave off the weight. More if you like. But as Steve said, what's the point? It will cost you a great deal of money (much more than a 1275 mini) for negligable gain.

For the amount you'd spend lightening the car to get an improved power/weight ratio, you might as well build a standard car and spend the money on a higher power engine to make up the defecit.

When are you ordering the kit?

You'll need the first 10 stages to get you rolling (+ wheels)

d3vine

Original Poster:

699 posts

297 months

Friday 12th December 2003
quotequote all
Bit confused why, if you spoke to Ted, you didn't ask him how much the lightweight body costs!

I remember asking him about the lightweight body. But he never sent me back a reply on the price.

'Street racing' - what's that then? It's illegal in the UK.

Yep, It's illegal in Washington, DC too. But that's one of the fastest way to make few hundred dollars...

In theory, you could shave off the weight. More if you like. But as Steve said, what's the point? It will cost you a great deal of money (much more than a 1275 mini) for negligable gain.

For the amount you'd spend lightening the car to get an improved power/weight ratio, you might as well build a standard car and spend the money on a higher power engine to make up the defecit.

With the lighten car and higher power engine, it would give a higher power-to-weight ratio than a heavier car with a higher power engine... Since I am building it. I could take my time. Certain components that could save weight can be bought at a later time.

When are you ordering the kit?

Hopefully, I will beable to buy it around mid-to-late summer of 2004. I need to find a full-time job before investing my life savings into the GTR.

You'll need the first 10 stages to get you rolling (+ wheels)

Actually, the first 10 stages doesn't whole lot. It cost about 15k or so... I need additional wheels, brakes, suspension and springs. I already have some wheels, brakes, and springs in mind. They be saving few Kg as well.

This will be so awesome... I will be youngest to own an Ultima GTR!!!

Steve_D

13,801 posts

287 months

Friday 12th December 2003
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How young?
I have a strange 'Tuckshop' feeling.
Steve