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Buschur Racing weight thread.

* * * * * 1 votes buschur racing lightweight exhaust battery wheels downpipe midpipe intake

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#141
spaggiari

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Gtr needs these.

PM'd. 



#142
spaggiari

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A Ti bar seems... odd.  Ti is a lot less stiff than steel so wouldn't you need a much thicker bar to get the same actual anti-roll performance from Ti?  This would seem like it would eat away at the weight savings and certainly drive up the cost.  Maybe I'm crazy though?

Titanium alloy is the most effective material for this application  . THis is the most popular blade material in circuit racing(top spec carts) ,WRC roll bars made from titanium,F1 etc. 

Weight is not the main reason.,titanium stiffness to its weight ....this is more important important to talk about titanium alloy stiffness to strength ratio....To make titanium alloy as stiff and hard as it can be,there are many different heat treatment maps and this is not easy to make . Vacuum chamber required etc(sometimes no need) .This is why there are  many different and sometimes funny facts about titanium . I'd say that first of all we have to talk about titanium alloys ....there are 100's. Possible to find even titanium knives while titanium is a relatively soft material. We made 48HRC titanium bars and this is just ti6-4 alloy! There are many ti alloys  for this application and I think that  58hrc is possible for sure(with proper heat treatment). 

If we are talking about titanium roll bar there are many different ideas and blade types,but one more time : this material is really popular .Reason is that in fact it works perfectly . 


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#143
Yinger

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Sorry for digging up an old post, but was wondering if the 42.2 lbs for the stock doors included the crash bar.  If it does, wonder how much the doors would weigh without the crash bar.

 

thanks


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#144
mikelmarion

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bump, anyone ever get weights for the glass and 2 driveshafts? And the front and rear subframe? The Dash?


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#145
elf_cruiser

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Dash is about 20 lbs. Hard to position on a scale for a more accurate number.
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2010 GT-R - Matte Gray, AP/Carbotech, BSE trans cooler, BSE tune on ECUTek, H&R sways, AMSOIL, NASA-AZ TT2 and occasional DD
1976 FJ-40 Rock Buggy - tube chassis, LQ4, 700R4, NP205, Rockwells, F&R hydraulic steering, Fox, Ballistic, lots of 4130, 7068, and AR400

2001 Ford Excursion - V10, DD and occasional tow rig

facebook.com/DangerousEnterprises

Do want someday - Radical, 599 GTB w/FHP, 430 Scud, Superlite Coupe, FF Type 65 Coupe


#146
mikelmarion

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thanks.  Just need the window info and subframes and that should be close to everything



#147
Dsm_alpha

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Has anyone removed the heater core from the dash? Curious how much it weighs and if it’s a pain

#148
elf_cruiser

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Has anyone removed the heater core from the dash? Curious how much it weighs and if it’s a pain


My body shop remived mine - can’t say how much work it was but they gutted the whole dash. There are two heater hoses that go through the firewall, they can be disconnected and hooked together behind the intake manifold so you don’t have any coolant into the cabin.

Cheers!
  • 7racer likes this

2010 GT-R - Matte Gray, AP/Carbotech, BSE trans cooler, BSE tune on ECUTek, H&R sways, AMSOIL, NASA-AZ TT2 and occasional DD
1976 FJ-40 Rock Buggy - tube chassis, LQ4, 700R4, NP205, Rockwells, F&R hydraulic steering, Fox, Ballistic, lots of 4130, 7068, and AR400

2001 Ford Excursion - V10, DD and occasional tow rig

facebook.com/DangerousEnterprises

Do want someday - Radical, 599 GTB w/FHP, 430 Scud, Superlite Coupe, FF Type 65 Coupe


#149
Dsm_alpha

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My body shop remived mine - can’t say how much work it was but they gutted the whole dash. There are two heater hoses that go through the firewall, they can be disconnected and hooked together behind the intake manifold so you don’t have any coolant into the cabin.

Cheers!


Thanks! Any idea on the weight?

#150
elf_cruiser

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I’m honestly not sure, man. It’s mostly plastic iirc so it can’t be that much weight...

2010 GT-R - Matte Gray, AP/Carbotech, BSE trans cooler, BSE tune on ECUTek, H&R sways, AMSOIL, NASA-AZ TT2 and occasional DD
1976 FJ-40 Rock Buggy - tube chassis, LQ4, 700R4, NP205, Rockwells, F&R hydraulic steering, Fox, Ballistic, lots of 4130, 7068, and AR400

2001 Ford Excursion - V10, DD and occasional tow rig

facebook.com/DangerousEnterprises

Do want someday - Radical, 599 GTB w/FHP, 430 Scud, Superlite Coupe, FF Type 65 Coupe


#151
Data

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As a questionably wise man (nutnfancy) once said, "if you don't worry about ounces, you'll be crying about pounds"


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#152
Peter GT-R

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Lets say, you loose 220 pounds (100 kg) how faster car would be on 1/4 mile?

 

Does it make any sense on 1300 WHP GT-R?

 

Aren't these most expensive "horsepowers"?



#153
droptopp

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Swap your seats and brakes and those are the biggest savings.

200lbs should put you into the 3700 range - probably 2-3 tenths - 2-3mph - probably more with the brakes as rolling resistance.

Someone has to have the data before and after brakes alone.

Will it be faster / quicker lighter - absolutely and easier on the drivetrain (trans, axles and brakes)
GTX3582R built and tuned by STM, AMS 4.1, Omega billet crank, Alpha Cams, STM DP, MP, 4 STM Titanium custom exhaust, STM Race FMIC 22x18x4.5, full 3" piping, ID 2000, Sheptrans OneK drop gears, DS axles, E85, Advan GT 10/12 285/315 R888 / MT ET 18x10/12 TE37 Saga MT ET SS 275/245.
Heartbreaker Mustang 1186 E70 low boost. Dynojet 1350 +/- 60-130 3.5 seconds. 100-150 3.4 seconds.

#154
Peter GT-R

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Swap your seats and brakes and those are the biggest savings.

200lbs should put you into the 3700 range - probably 2-3 tenths - 2-3mph - probably more with the brakes as rolling resistance.

Someone has to have the data before and after brakes alone.

Will it be faster / quicker lighter - absolutely and easier on the drivetrain (trans, axles and brakes)

 

As far a s I know, 10 lbs = 1 HP but in case of rolling weight 10 lbs = 4HP

I started to think about it now when I make decision about exhaust ETS Steel VS Titanium. Titanium is twice more expensive than Steel and it safes 30 lbs - 3 HP :) Would be most expensive 3 HP in my life :)


Edited by Peter GT-R, 09 September 2018 - 12:42 AM.

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#155
droptopp

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10lbs equals 1 hp for a 250-300 hp 3000lb car from back in the day.

But it’s not linear at the level you are planning to be at, maybe a tenth or two and a couple mph in the half.

I have a feeling traction is going to be your key driving factor in acceleration.

Edited by droptopp, 09 September 2018 - 04:08 PM.

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GTX3582R built and tuned by STM, AMS 4.1, Omega billet crank, Alpha Cams, STM DP, MP, 4 STM Titanium custom exhaust, STM Race FMIC 22x18x4.5, full 3" piping, ID 2000, Sheptrans OneK drop gears, DS axles, E85, Advan GT 10/12 285/315 R888 / MT ET 18x10/12 TE37 Saga MT ET SS 275/245.
Heartbreaker Mustang 1186 E70 low boost. Dynojet 1350 +/- 60-130 3.5 seconds. 100-150 3.4 seconds.

#156
gtrguyinaz

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If 10 pounds rolling + 4 hp......... a net of 80 hp.

To go light for seats,brakes exhaust , and tires produces a lost weight of plus 200 pounds .

These changes will cost $20,000 or so .........

or $100.00 per pound ruff cost.....

Add 100 hp and lose 200 pounds for  $30,000.00 or so.



#157
droptopp

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Again this wouldn’t be linear - I think ccm swaps see about 2mph in the 1/4 with no other changes at the 145-150mph mark.
GTX3582R built and tuned by STM, AMS 4.1, Omega billet crank, Alpha Cams, STM DP, MP, 4 STM Titanium custom exhaust, STM Race FMIC 22x18x4.5, full 3" piping, ID 2000, Sheptrans OneK drop gears, DS axles, E85, Advan GT 10/12 285/315 R888 / MT ET 18x10/12 TE37 Saga MT ET SS 275/245.
Heartbreaker Mustang 1186 E70 low boost. Dynojet 1350 +/- 60-130 3.5 seconds. 100-150 3.4 seconds.

#158
albertracing

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And the front and rear subframe? The Dash?

 

Original front subframe is 48,5 lbs

Original rear subframe is 66,35 lbs


Edited by albertracing, 26 November 2018 - 06:52 AM.

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#159
gtrguyinaz

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Front subframe is 48,5 lbs

Rear subframe is 66,35 lbs

The weight you quote is stock weight or weight savings with after market parts.



#160
albertracing

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The weight you quote is stock weight or weight savings with after market parts.

 

corrected my first post, it was OEM weight

 

aftermarket front 28.88 lbs 

aftermarket rear 40,78 lbs







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