Will 221 pound weight reduction make a difference on a track??

rmonckton · 03-08-2006, 02:58 PM

I'm debating on stripping weight from the S4 for a track day coming up.

I can take 221 pounds off in total (must admit 55% from the rear), will it make a better time?

Track is a short tight track (1min 12 sec) running semi-slicks

Cheers

Rob

vegasS4 · 03-08-2006, 03:00 PM

Bimmer Needs Reverse · 03-08-2006, 03:01 PM

Rican_S4 · 03-08-2006, 03:04 PM

rmonckton · 03-08-2006, 03:06 PM

Well I guess I 'll be stripping the car then..

I already will take:

Passenger seat
rear seat
rear back
spare tyre
tool box

Is there anything else I can remove (preferably from the front)???

I'm kind of worried about increasing understeer tho..

ast78 · 03-08-2006, 03:08 PM

rmonckton · 03-08-2006, 03:10 PM

Front passenger seat = 38kg's

Back seat (base and back) = 25kg's

Spare tyre and tool box = 28Kg's

Swap 19's for stock rims = 8Kg's

New brake rotors = 5 Kg's

New exhaust = maybe 5 kg's

Rob on a diet = I wish hahah

TOT = 112Kg's (220 - 240 pounds)

Rolf · 03-08-2006, 03:10 PM

I'm not so sure i'd want to remove all that stuff if i'm driving it around everyday. i'm perfectly happy with k04's and full street weight.

but if you really want to get crazy, your going to want to get a lightweight battery preferably moved to the back, carbon fiber trunk and hood .. and your also going to want to take off those 19in wheels and get light 17s.

RMN · 03-08-2006, 03:11 PM

Rolf · 03-08-2006, 03:12 PM

03-08-2006, 02:58 PM	#1
rmonckton New Member Account #: 82684 Join Date: Oct 2004 Posts: 186	Will 221 pound weight reduction make a difference on a track?? I'm debating on stripping weight from the S4 for a track day coming up. I can take 221 pounds off in total (must admit 55% from the rear), will it make a better time? Track is a short tight track (1min 12 sec) running semi-slicks Cheers Rob __________________ S4 - Euro Spec H&R coilovers - Street Samco TBB & F hose Turbosmart Dual ports Whiteline 18mm rear sway bar Borla exhaust Defi BF Boost Gauge RS4 19" rims Giac Chip DBA 5000 light weight/slotted Rotors EBC Greenstuff F&R ET: 13.03 60ft: 1.804 MPH: 104.4

03-08-2006, 03:00 PM	#2
vegasS4 Member Account #: 12649 Join Date: Nov 2000 Posts: 4,146	does the s4 have quattro? __________________ L10 AWE Stage III tip

03-08-2006, 03:01 PM	#3
Bimmer Needs Reverse Member Account #: 86788 Join Date: Jan 2005 Location: J-ville, FL Posts: 2,064	Absolutely- 100lbs is equivalent to a 10HP increase. __________________ 1977 IH Scout-Awesome! (except the rust) 1981 GMC Jimmy- eh.....50/50, beater/cool 1986 5.0 Mustang Convert. Bad ass..spun the tires! 1991 5.0 Mustang GT-auto, FTL 1993 5.0 Mustang LX trunk. Built 306 ci- Booyah! 2000 Dodge Dakota....eh 2001 VW Jetta GLX VR6- Loved that car 2004 VW R32....Great intentions, poorly executed. 2000 Audi S4 Imola Yellow, soon to be STGIII!!! create your own visited countries map

03-08-2006, 03:04 PM	#4
Rican_S4 Elder Member Account #: 78582 Join Date: Jul 2004 Posts: 11,981	does Ronal make wheels for Audi?

03-08-2006, 03:06 PM	#5
rmonckton New Member Account #: 82684 Join Date: Oct 2004 Posts: 186	So I take that as a yes.. haha Well I guess I 'll be stripping the car then.. I already will take: Passenger seat rear seat rear back spare tyre tool box Is there anything else I can remove (preferably from the front)??? I'm kind of worried about increasing understeer tho.. __________________ S4 - Euro Spec H&R coilovers - Street Samco TBB & F hose Turbosmart Dual ports Whiteline 18mm rear sway bar Borla exhaust Defi BF Boost Gauge RS4 19" rims Giac Chip DBA 5000 light weight/slotted Rotors EBC Greenstuff F&R ET: 13.03 60ft: 1.804 MPH: 104.4

03-08-2006, 03:08 PM	#6
ast78 New Member Account #: 82286 Join Date: Oct 2004 Posts: 326	where are you stripping 221 lbs from, detail list? __________________

03-08-2006, 03:10 PM	#7
rmonckton New Member Account #: 82684 Join Date: Oct 2004 Posts: 186	Re: where are you stripping 221 lbs from, detail list? Front passenger seat = 38kg's Back seat (base and back) = 25kg's Spare tyre and tool box = 28Kg's Swap 19's for stock rims = 8Kg's New brake rotors = 5 Kg's New exhaust = maybe 5 kg's Rob on a diet = I wish hahah TOT = 112Kg's (220 - 240 pounds) __________________ S4 - Euro Spec H&R coilovers - Street Samco TBB & F hose Turbosmart Dual ports Whiteline 18mm rear sway bar Borla exhaust Defi BF Boost Gauge RS4 19" rims Giac Chip DBA 5000 light weight/slotted Rotors EBC Greenstuff F&R ET: 13.03 60ft: 1.804 MPH: 104.4

03-08-2006, 03:10 PM	#8
Rolf Junior Member Account #: 86936 Join Date: Jan 2005 Posts: 854	is this going to be a daily driver? or are you turning the s4 into a track car? I'm not so sure i'd want to remove all that stuff if i'm driving it around everyday. i'm perfectly happy with k04's and full street weight. but if you really want to get crazy, your going to want to get a lightweight battery preferably moved to the back, carbon fiber trunk and hood .. and your also going to want to take off those 19in wheels and get light 17s.

03-08-2006, 03:11 PM	#9
RMN Member Account #: 51850 Join Date: Feb 2003 Posts: 42,172	I guess I should go on a diet...

03-08-2006, 03:12 PM	#10
Rolf Junior Member Account #: 86936 Join Date: Jan 2005 Posts: 854	and i believe every 100lbs is worth about a tenth off your 1\4 time? (correct if wrong)

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