I was recently asked to comment on what is the best weight saving measures on the 360 / F430 by member BAD430BENZ and thought its best to make this into a sharable discussion so people can participate and hopefully everyone learn something interesting along the way... Firstly some background and reasoning why the 360 and F430 are grouped together. Its actually because they share a lot the same basic chassis (and thus parts), called in Ferrari speak, F131 on 360 and F131 Evo (stands for Evolution), or evolved. on the F430. Ferrari have a tradition of retaining the same chassis (evolved) for 2 generations but revising the engine and styling on the next model generation before a whole new platform is ushered in (458 in this case and then the 488 turbo shared the same platform as 458 evolved). Get it? Its the reason why so many people swapped parts on their 348's to make them look like a F355... Anyway, to start with, lets give you some indication of what's possible, some ballparks and some difficulties people will face when they actually weight their vehicle for the very first time. The first one is that the real weight of the individual cars of the same model can vary by as much as 100kg's between US spec and European specification, so the figures below can easily be much higher than expected if your car is a US variant. Blame all the extra extra crash protection, emissions kit and so forth required to be fitted. All this is even before we factor in options list parts which can dramatically alter the weight too. The standard (Euro) claimed 360 Modena weight from factory (kerb) was 1,390kg's (so with upto 100kg's extra possible with options a US car could be as high as 1500kg's before you add the weight of the passengers!). That's quite a lot of difference. The standard Challenge Stradale kerb was 1,280kg's in its best possible configuration which included lexan side windows, no stereo, alcantara, you get the picture and in real world the vast majority of cars never had such a spec (infact it was actually illegal in the us to use lexan side windows and roll bar, which even if you could you wouldn't want the side lexan since they are horrible in a road car and scratch very easily). The regular 360 Modena with carbon sport seats, factory sports exhaust and several other weight saving measures could shed about 50kg's over stock weight. So already you can see that a well optioned European car could be as much as 150kg's lighter than the worse'd (for weight) spec'd US car! Incredible really, not to mention that the additional heavier main cats and header cats (not fitted on euro cars) and emissions kit and engine mapping all conspired to rob US spec cars of as much as 40 hp too. So with all the extra weight and less power a stock us car with the worst options can feel night and day different from a lighter spec'd car. It reallly is so different you just wouldn't believe it until you experienced back to back the cars. The most extreme variant of the 360, namely the 360 N-GT, which was in effect an evolution of the 360 Challenge car, shed over 400kg's (!) vs a worst offending 360 Modena. The official KERB weight including all fluids and fuel was rated at 1,070kg. That's pretty impressive and given it ran over 470hp in final GTC spec it was a rip snorting monster, its power to weight trouncing newer generation cars quite comfortably. In the next post I will also reveal the differences between the kerb weight and dry weights often quoted and why they add to the confusion even more... I'll also post a spreadsheet i developed to show the differences between various weight savings and how its the equivalent of adding extra power everywhere, not just at peak power.
Not to take away from the thread but I raced cars for many years and I'll never forget a line from our crew chief when the car kept coming in about 10lbs over weight. "It's a helluva lot cheaper and easier to take weight out of the driver than the car. Lay off those Lattes!"
Removing the insulation from under the carpets and behind many of the interior panels would reduce weight significantly while also increasing road and wind noise and heat inside the passenger compartment. Also installing the lightest seats and changing breaks from steel to CCB reduces weight more. I have also heard of fitting lighter rims to vehicles to save on weight. Installing headers that have no precats will more then likely save a minor amount of weight and possibly increase horsepower. In the "old days" racers would acid dip steel bodies to significantly reduce the weight of the body and would replace body panels with fiberglass hoods, trunk lids, fenders and door panels. In the 50s and 60s racers even fitted magnesium parts and rims to more reduce weight. I suppose today a person could install carbon fiber parts for more weight reduction though after reading horror stories of acid dipped cars I certainly wouldn't even contemplate that. For street use maybe I'd consider most of what I described in the first paragraph of my post. But I'm not a speed demon anymore and just enjoy the ride. most modern exotic sports cars are already constructed pretty light and most of the items you would remove to save weight would reduce the comfort of the driver and passenger.
Kerb Weight/Curb Weight vs Dry Weight Sounds like it should be an easy thing to define right? Sadly its all a bit messed up and nobody seems to agree on anything so comparing like for like is very hard unless you have a pair of weighing scales, the truth is out there but very difficult to find out without doing your own leg work! Manufacturer quoted kerb weights cannot be compared between one another so they are quite useless. There are also various different definitions out there such as; SAE method DIN method European Directive method Japanese method Manufacturer own method US (SAE) method and so on. So in other words we need to do our own research to get to the truth! It may or may not shock you to discover that 'dry weight' is actually defined as the weight of the car without ANY fluids required to actually drive the thing anywhere, so you cannot even start the engine since their is no fuel, no oil and no coolant! Sounds ridiculous right? And you'd be right in thinking therefore that dry weights are a bit of a waste of time because nobody would ever see them! Its why its a bit of a silly thing that Ferrari chose to describe the Challege Stradale as having 2.8kg per bhp in their glossy sales brochure. In other words deriving a bhp per kilo for a dry weight is pretty meaningless and just marketing fluff. They really should have defined what constitutes kerb weight (on top of the dry weight) and then shown the bhp per kilo from there. Also it would also reveal that in the 360 there where significant weight penalties in some regions over others which would be difficult to stomach for some enthusiasts who would rightly feel 'short changed'. So, how exactly do we get real world weights? Well the very first thing we need to do is add fluids to the car before we can drive it Petrol (Gas) (how much depends on the definition of kerb weight used!) Engine Oil Gearbox & Differential oil F1 Transmission Oil (not required H-gate) Steering Box Oil Hydraulic Steering Oil Air conditioning gas,*optional, if you want air conditioing to work you need it! Engine Coolant Brake Fluid Window Washer Fluid: *optional, not technically required but typically brimmed by most people. So the first question is how much fuel is defined by 'kerb weight'? Very good question! Sadly one that's not so easy to answer. It depends on whom you ask and what method they are using! Ugh! Some define Kerb weight as with all the fluids and equipment but wrt fuel, filled 90% of the fuel tank and some 50% and some 1/3rd of a tank, go figure. This also becomes very misleading too because if a car has a very small fuel tank it makes its kerb weight look better because its a percentage full! Some people like to use the term 'tare mass', this refers to a car that is fully loaded with all necessary fluids required except its got 10 litres of fuel in the tank. This is probably the best for comparisons between cars. Petrol/Gasolene Lets start now to define weight of petrol. Even something as simple as the Gas we use is confusing to get right. Why? Well did you know its weight actually depends on the chemical composition of the gasoline itself, its specific gravity can vary between 0.71 and 0.77, and thus its weight can slightly depending on brand! Yes that’s right! The specific gravity of gasoline used for vehicles is often therefore taken as an average of the min/max range, i.e. the calculation is 0.71+0.72+0.73+0.74+0.75+0.76+0.77 / 7. Its divide by 7 since there are 7 possible gravities. So the median gravity is 0.74. The specific gravity of a substance is defined as the ratio of the density of that substance to the density of water at 4 degrees Celsius. Density is defined as the mass of the object per unit volume. At 4 degrees Celsius, the density of water is 1 kilogram per litre, which equates that the density of gasoline is 0.74 kilogram per litre. Since 1 kilogram is equal to 2.20462 pounds and 1 US gallon is equal to 3.79 litres, density of gas can be calculated to be 6.183 pounds per gallon, for example, a gallon of gasoline weighs 6.183 pounds. Taking into consideration that the specific gravity of gasoline can be anything between 0.71 and 0.77, the weight of a gallon of gasoline can also vary between 5.93 pounds and 6.43 pounds. Q. Did you ever expect any of this to be easy!? So lets assume Gas/Petrol weight per litre is 0.74 of a kilo (median gravity) The 360's fuel tank is 95 Litres. So adding 95 litres of fuel (brimming it) doesn't in fact add 95 kilos, its 95 * 0.74 = 70.3kgs is 100% full. If we look in the workshop manuals on refilling of fluids we get the following (360, F430 differs!) Petrol in tank: 35.15kg (assumed half full) Engine Oil: 11.5 kg Gearbox & Differential: 3.5 kg F1 Transmission Oil: 1.0 kg Steering Box: 0.2 kg Hydraulic Steering Oil: 1.8 kg Aircon Gas: 1.0 kg Engine Coolant: 18.4 kg Brake Fluid: 1.5 kg Window Washer: 3.5 kg In this scenario we get 77.5kg's. Call it give or take 80kg's extra weight required to go from dry to a car with all the necessary fluids, half a tank of fuel but no passengers. That's right you need to add in the weight of a typical person (whatever that may be!). It obviously varies from country to country... So as you can see even something like defining kerb weight is well and truly a mine field!
Q. How much gain does weight saving really yield? Let us first consider some basic power to weight statements which can be used to determine exactly how much 'equivalent' horsepower the weight reduction is actually worth in comparison to the original weight and power. This is an interesting topic in itself and worth any sports car owner interested in performance spending some time to properly understand. Is it even worth it often crops up and that really depends on quite a number of factors and ofcourse how seriously you take it. It is worth at this point also understanding that reducing weight is never cheap but it is always preferred as the first option to gaining horsepower by engine tuning. Why? Well power output of an engine has sweet spots in rev bands, unlike electric power, engine torque and power rises as a function of revs. This means at say 1,000 rpm you may have very little of your peak torque available to accelerate the car away from the line. Electric motors are very different as they have all of the torque available instantly so they accelerate very differently to regular engine. You could say reducing weight acts a bit like this because the benefits are felt everywhere, not just at various points in the rev range. Around corners, its particularly apparent in the improved agility it brings since there is less mass to overcome. Lets now look at some basics (i've kept it as minimal as possible I promise); bhp / stock_kerb_weight_kg = stock_bhp_per_kg bhp / (stock_kerb_weight - kilos_removed) = new_bhp_per_kg stock_bhp_per_kg * target_bhp_per_kg = power_achieved power_achieved = bhp = power_gain Scenario #1: So using these basic, let us start with the assumption that the 360 Modena is a stock US spec car with 360hp (seems to be about right based on posted results) and its kerb weight is fully loaded example at 1490kg. If you know the rolling road power and the real kerb weight (from scales) you can work these figures out easily for your own car. 360hp / 1490kg = 0.24161 bhp per kilo (stock) 360hp / 1390kg = 0.25899 bhp per kilo (new) 1490kg * 0.25899 bhp per kilo target = 385.9 bhp (equivalent power) 385.9hp - 360hp = ~25.9 bhp (equivalent gain from weight saving) Now lets further assume we delete the header cats, fit high flow sports cats and the optional sports exhaust along with a the ecu's from the kit (or remap) you are now achieving between ~410-420hp with little else. That's a healthy gain of ~40-50hp over real world stock (shocking isn't it!!). So you could say Ferrari achieved the same (on the CS) as aftermarket options like sports cats (but actually leaving them stock), they did this by fine optimisation of other areas such as the heads, pistons, air intake flow, etc. What does this mean to the picture? Well if the cars really do produce 420hp its around a 40-50hp real world gain, at least in Euro spec cars, not the 20hp people you would initially believe from reading the stats (the 360's never really made 400hp unless fitted with the optional sports exhaust and even then its a tad optimistic, especially us cars!). From the rolling roads results I saw in Europe I believe the CS actually produces the power claimed. So lets assume they are 50hp up on power (EU cars) and in best scenario 100-110kg better weight then you get; -110kg saving (best spec cs) 420hp / 1390kg = 0.30215 bhp per kilo (stock) 420hp / 1280kg = 0.32815 bhp per kilo (new) 1390kg * 0.32815 bhp per kilo target = 456.1285 bhp (equivalent power) 456.12hp - 420hp = ~36.1 bhp (equivalent gain from 110kgs weight saving) What this means is this; 36 bhp gain from the full ticket of weight saving 50 bhp gain (real) from the optimized engine (real 420hp vs real 360-370hp) So your looking at ~86 bhp gain from real world vs a heavy optioned regular modena! No wonder people could tell the difference alright. All of this also assumes both cars are operating at peak performance too. If they have not had the exact cam timing done (with great care and precision) and matched across both left and right banks during the belts being done you can find yourself pretty much 'way down' on power too... More on that in another post to come later..
Good thread! I have before/after for comparison. 95 F355. Baseline weight/rwhp/acceleration- 3,199lbs 327 rwhp 12.62@114mph After weight reduction and cat delete- 2,987lbs 340 rwhp [email protected]
While this may be true for many folks, not all of us have a significant amount of weight that we can lose. Plus, 10 lbs is not going to make a difference either way. When we're talking about 100 kg or more, however, that can make a difference, especially at the track.
Ok as promised here is the speed calcs spreadsheet plus a way to do performance comparisons... let me know if you have any questions.... Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
Ofcourse power to weight is only one part of the story, you have weight balance (which requires lots of effort using corner weighting scales) as well as mechanical grip (plus traction), braking, steering, you get the picture... but its a useful one to show just how rapid the latest set of supercars from Ferrari are headed. The fact that the new 488 Pista has so much power means its basically as rapid as a La Ferrari! Nuts times we live in!!!
Neat charts! ^ Did you dyno your 360? If so on what type dyno? My car was rear wheel sae #'s on a Dynojet. Your chart numbers are estimated crank hp?
I agree its ridiculous! Too much crap mandated by governments such as tpms, etc. Just found this rather nice list of weights and cars on the web (totally UNVERIFIED) but interesting nethertheless even if just as a ballpark... -- Cars upto 400kg's... 380kg - Light Car Company Rocket -- Cars 400kg's to 600kg's ... 505kg - Caterham Super light 1.6 - 1997 (138 PS) 584kg - Ariel Atom 300SC 585kg - Fiat Panda 1.8 CV 05 593kg - Brooke Double R 595kg - Caterham Super Seven Roadsport 1.7 1997 598kg - Caterham Super Seven CSR 260 -- Cars 600kg's to 800kg's ... 630kg - Caterham CSR 200 - 2005 (200 PS) 675kg – Donkervoort D8 180R 733kg – Lotus Elise 96 1.8 760kg - Donkervoort D8 RS06 796kg – Lotus Exige MK1 -- Cars 800kg's to 1,000kg's ... 907kg – Lotus Exige MK2 921kg – Opel Speedster Turbo 941kg – Lotus Exige 240R 993kg – Mazda MX5 93 996kg - Lotus Europa S -- Cars over 1,000kg's to 1,200kg's 1013kg - Citroen C2 1.1 SX 1080kg – Lotec C1000 1120kg - Renault Clio Trophy 1143kg – Mazda MX5 2.0 06 1150kg – Porsche 993 GT1 1150kg – Ruf 964 CTR Yellowbird 1165kg – TVR Tuscan S 1193kg – Morgan Aero 8 Series 1 1180kg - Mini Cooper S JWC GP -- Cars over 1,200kg's to 1,400kg's 1205kg – TVR Tuscan MK2 1207kg – Porsche 996 GT3 Cup 1207kg – Mazda MX5 2.0 RHT rodster-coupe 1212kg – Mini Cooper S Works 1225kg – Wiesmann MF3 1244kg - Honda NSX-R 1246kg – Honda Civic Type –R 1254kg – Ferrari F40 1262kg – McLaren F1 --- 1268kg - Marcos TSO GT2 Sports Package 1275kg – Honda S2000 MK1 1277kg - Ford Focus 1.6 Sport 1288kg – Honda S2000 MK2 1288kg - Renault Clio Sport 197 1290kg - Wiesmann GT MF4 1290kg – Lotus Esprit S4 Turbo 88 1290kg – Subaru Impreza GT Turbo 99 1293kg – Porsche 964 Turbo S 1310kg - Audi TT 2.0 TFSI 1320kg – Ferrari F50 1320kg – Mazda RX-7 93 1320kg – Mini Cooper S Cabriolet 1322kg - Audi 2.0 TT TFSI (Supertest vehicle) 1324kg – Lotus Esprit 350 1324kg – Lotus Esprit SE 300PS 95 1344kg - Vauxhall Astra VXR 1348kg - Opel Astra GTC 1350kg – Ferrari 355 Berlinetta + 1356kg – Porsche 968 Turbo S 1362kg – Porsche 993 Carrera 2 1363kg - Fiat Stilo 2.2 1370kg – Porsche Boxster 99 1371kg – Pagani Zonda F * 1371kg – Renault Megane Trophy Sport Auto Edition 1373kg – Porsche 996 GT3RS * 1376kg - Opel Astra GTC OPC 1377kg - Chrysler Crossfire 3.2 1378kg – Mazda RX8 Manual 1381kg – Renault Clio V6 01 1384kg – Mitsubishi Carisma EVO IV 1386kg – Porsche Boxster S 99 1387kg – Ferrari 360 Challenge Stradale 1388kg – Pagani Zonda C12S 7.3 1388kg – Honda NSX 3.2 97 1396kg – BMW Z4 3.0 SMG 1400kg - Pagani Zonda C12S 7.0 -- Cars over 1,400kg's -to 1,600kg's 1401kg – AC Schnitzer CLS E36 II 1406kg – Ferrari Enzo ** 1408kg – BMW Z4 3.0CSi 1410kg – BMW Z3M Roadster 1410kg - Ascari KZ1 1412kg – Porsche Cayman S 1416kg – Alpina Roadster S 1416kg - Manthey Porsche M700 1418kg – Koenigsegg CCR 1418kg - Cargraphic Porsche 996 GT3 RSC 1419kg – Renault Clio V6 255 1420kg – Porsche 996 GT3 MK2 1420kg – Honda NSX-T 3.2 05 1421kg – BMW M3 CSL 1421kg – Volkswagen Golf GTi 05 1422kg – Porsche 993 Carrera 4 1422kg – Ruf 993 CTR Sport 1427kg – Alfa Romeo 147 GTA 1427kg - Mazda 3 MPS 1430kg – Chevrolet C5 Z06 1440kg – Porsche 997 GT3 * 1440kg – Ferrari 348 GTB 1442kg – Chevrolet Corvette C6 Z06 1444kg – BMW Z4M Roadster 1445kg – Alfa Romeo GT V6 1445kg – Alfa Romeo 156 GTA 1445kg – BMW Z3 M Coupe 1448kg - Audi TT 3.2 quattro 06 1450kg – Porsche 996 GT2 * 1453kg – TechArt GT Street 1453kg - Volvo C30 T5 1452kg – Chevrolet Corvette C5 CE 1453kg – BMW 130i M 1454kg – Mitsubishi Carisma EVO VII 1461kg – Audi TT 1.8T MK1 1461kg – Porsche 997 Carrera S * 1463kg – Porsche 996 GT2 MK2 * 1464kg – Ferrari 360 Modena 1466kg – Porsche 996 Carrera 4 1466kg – BMW Z4M Coupe 1466kg - Mistubishi EVO FQ-340 1467kg – Porsche 996 Carrera 2 1468kg – Chrysler Crossfire SRT-6 1471kg – Porsche 964 Turbo 1472kg – Ford Focus ST 1472kg – Porsche Carrera GT 1480kg – Mercedes-Benz SLK32 AMG 1482kg – Gemballa 600 GTR 1487kg – Subaru Impreza WRX STi 03 1489kg – Audi S3 MK2 1490kg – Lamborghini Countach 5000S 1491kg - Startech Crossfire 6.1 1492kg – Chevrolet Corvette C6 1493kg – Ferrari F430 * + 1493kg - Audi S3 MK2 1494kg – Ferrari 348 TB 1495kg – Alpina B3 3.3 1505kg – Porsche 993 Turbo 1506kg – Volkswagen R32 MK1 1506kg – Porsche 993 Turbo S 1506kg - Chrysler SRT-6 Cabriolet 1506kg - Mercedes-Benz SLK55 AMG Black Series 1510kg – Chevrolet Corvette C5 Cabriolet Manual 1510kg – Chevrolet Corvette C6 Cabriolet Automatic 1512kg – Ferrari 355 Spider + 1526kg – Nissan 350Z 1528kg - Lamborghini Gallardo Superleggera * + 1531kg – Maserati MC12 1550kg – Gemballa GTR 750 EVO 1555kg – Jaguar XJ220 1557kg – AC Schnitzer V8 Topster 1558kg – Lotec 993 Bi-Turbo 1560kg – Mercedes-Benz C350 Manual 1560kg - Wendland 997 Turbo 1560kg - Citroen C5 HDI 05 1562kg – Porsche 997 Carrera S Cabriolet * 1565kg – 99 Callaway C12 1565kg - Reiter Lamborghini Gallardo GT3 Strada 1566kg – Mercedes-Benz SLK55 AMG 1566kg - Porsche 959 Sport 1567kg - Viper GTS 97 1568kg - Wendland 997 Turbo 1569kg – Porsche 996 Turbo 1571kg – Mercedes-Benz C43 AMG 1576kg – Lamborghini Diablo 96 1579kg - 9ff T-2 1580kg – Porsche 997 Turbo * 1584kg – BMW E46 M3 1586kg - Geiger Viper GTS 1589kg – Audi TT 3.2 DSG 04 1590kg – Lamborghini Diablo SV 1591kg – Volkswagen R32 MK2 1592kg – Audi S4 MK1 1592kg – Brabus 5.8 1593kg – Mercedes-Benz CLK55 AMG 99 1593kg - Viper RT/10 94 1595kg - Gemballa GT550 1595kg - Audi R8 + * 1599kg – Ford GT 1599kg - Ferrari F430 Spider + * 1600kg – Alpina B10 3.2 1600kg – Dodge Viper SRT-10 1600kg – Porsche 996 Turbo S -- Cars over 1,600kg's -to 1,800kg's 1604kg - Speedart TTR 530 1610kg – Jaguar X – Type V6 1610kg - BMW 335i Coupe 1613kg – Lamborghini Gallardo + 1614kg – Maserati 3200GT 1614kg - Abt VW Eos 2.0 TFSI 1615kg - Abt VW Eos 1616kg – Mazda 6 MPS 1617kg - TechArt Turbo 1620kg – Lamborghini Diablo GT 1620kg - Lexus IS250 1630kg – Porsche 928 GTS 5 94 1631kg – Ferrari 512M 1634kg – Lexus IS220 1635kg – Brabus CV8 Sports Coupe 1635kg – Ford Mustang 4.6 05 1636kg – BMW E90 330i Saloon 1636kg – Aston Martin V8 Vantage 1640kg – Lamborghini Gallardo SE + 1644kg – Ferrari 512 TR 1648kg – Mercedes-Benz C32 AMG 1651kg – Nissan 350Z Roadster 1651kg – BMW Z8 1652kg – Alpina Z8 Roadster 1664kg - Nissan 300ZX 94 1672kg – Maserati GranSport 1675kg – Audi RS4 MK1 1678kg – Mercedes-Benz CLK DTM 1679kg - Roush Mustang 420RE 1680kg – Mercedes-Benz C55 AMG 1686kg – Maserati 4200 CC + 1695kg – Mercedes-Benz E55 99 1703kg – Jaguar XKR MK1 1720kg - Mitsubishi 3000GT VR-4 '91 1721kg - Jaguar XK8 4.2 06 1724kg – Ferrari 550 Maranello 1726kg - BMW 650i 1728kg – Audi RS4 MK2 * 1733kg – Alfa Romeo Brera 3.2 V6 1747kg – Mercedes-Benz SLR McLaren 1748kg – Lamborghini Gallardo Spider + 1749kg – Maserati GranSport Spider 1753kg - Ferrari 599 GTB + * 1760kg – Jaguar XJ8 05 1761kg – BMW M6 1771kg - Audi RS4 Avant 1775kg – Ferrari 575M Maranello + 1775kg - Jaguar XKR, 2007 1778kg - Alfa Romeo Brera 3.2 JTS V6 Q4 1780kg – Jaguar XK8 Cabriolet 06 1790kg – Mercedes-Benz CLK DTM Cabriolet 1796kg – Bugatti EB110 1797kg - AC Schnitzer 6er Tension 1788kg – Mercedes-Benz CLK63 AMG -- Cars over 1,800kg's -to 2,000kg's 1805kg – Lamborghini Murcielago LP640 + * 1805kg – Jaguar XJR 05 1813kg – BMW 550i Auto 1820kg – Lamborghini Murcielago 6.2 1825kg – Cadillac XLR 1826kg – Audi S4 MK2 Avant 1833kg – Aston Martin DB7 GT 1833kg – BMW E39 M5 1835kg – Alpina B5 1837kg – Audi A8 4.2 05 1844kg – BMW E60 M5 1847kg – Aston Martin DB9 Automatic 1847kg – Aston Martin DB7 Vantage 1852kg – Mercedes-Benz SL500 03 1856kg – Jaguar S-Type R 03 1885kg – Cadillac STS 4.6 05 1881kg – Lexus GS450h 1886kg – BMW 840 CSi 1886kg – Aston Martin DB9 Volante Auto 1888kg – Aston Martin V12 Vanquish 1890kg - Chrysler 300C 5.7 1900kg – Aston Martin Vanquish S 1908kg – Audi RS6 1916kg - Audi RS4 convertible 1931kg – Lexus LS430 02 1935kg – Mercedes-Benz E63 AMG 1950kg – BMW 645Ci Cabriolet 1951kg – Mercedes-Benz SL73 AMG 1953kg – Mercedes-Benz E55 AMG 1954kg - Citroen V6 V6 1961kg – BMW 850CSi 1968kg – Mercedes-Benz SL55 AMG MK1 1970kg – BMW 650Ci Cabriolet 1988 kg - BMW M6 convertible 1990kg – Ferrari 456 GTA 1994kg – Chrysler 300C SRT8 -- Cars over 2,000kg's -to 2,200kg's 2001kg – Mercedes-Benz SL600 03 2003kg – Audi S6 MK2 2004kg - Mercedes-Benz SL55 AMG MK2 2049kg – Mercedes-Benz SL65 AMG 2068kg – Audi A8 W12 05 2080kg – BMW 750i 2096kg - Lexus LS460 -- Cars over 2,200kg's -to 2,400kg's 2275kg - Dodge Ram SRT-0 2238kg – Mercedes-Benz ML500 06 2300kg – BMW X5 4.4 04 2395kg – Audi Q7 4.2 -- Cars over 2,400kg's -to 2,600kg's 2424kg – Bentley Continental GT 2480kg – Bentley Flying Spur 2504kg – Porsche Cayenne Turbo -- Cars over 2,600kg's -to 2,800kg's 2633kg – Range Rover Sport 4.2 SC -- Cars over 2,800kg's... 3045kg – Lamborghini LM002
Over the years had quite a few different ones, these pics are from a few years ago. I'm due to get it done again soon as I'm highly interested to see what my new perfect cam timing has done to power output, my cam timing wasn't perfect to say the least and was still making great power with all the optimisations previously done so it might even be better now than before! Image Unavailable, Please Login Image Unavailable, Please Login
Looks like a Maha? Nice! So would I be correct in guessing they estimated crank hp at the 445 you have listed? I'm sure fixing the cam timing could only help, especially if off bank to bank.
Great thread, currently looking at removing all sound insulation in my F430 and potentially new seats. Looking for a more raw experience. Sent from my iPhone using Tapatalk
Hey Trev I have been watching post for a good while now you have been very help full , I just knock a huge amount a weight off my 360 installed all factory lexan side glass for doors removing wind shield wiper and arms and bottle . Ferrari just made a new run on front and rear CS bumpers euro specs big help on saving weight over US cars removing all DOT even removing air bags and install factor four point harness and roll bar way to much to list Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
Well done Randy on an excellent looking car! These cars are all about weight savings, transforms them! Did you weigh how much you shed? Thanks for sharing!
