Home » Racing Sports Cars » Lotus Elise GT1
Source
2 cars were converted to Bitter GT1
Specifications
7 units built
Click here and here and here
Click here and here for street version
Homologation number: GT1 6
Homologation start: 1/4/1997
Chevrolet Small Block gen. II LT5 365, V8 (90o) cyl, 4 stroke, petrol engine, located middle longitudinally
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5984cc, 101.2 x 93 mm
608 HP
aluminium alloy "open deck" block, 111.76 mm bore spacing, 229.24 mm deck height, Forged aluminum Nikasil coated Mahle cylinder liners
Cross flow, fast burn, pent roof 40cc combustion chamber, aluminium alloy head
forged steel connecting rod, length center to center 145.8 mm
piston compression height 36.5 mm
flat-plane nitrided crankshaft with 5 main bearings 70mm diameter, 53.3 mm big end bearings diameter
2 x 2 overhead camshafts (DOHC), chain driven for middle gear, and belt driven for each bank, 4 valves / cyl - 32 valves total
VMS-648 Flash chrome steel inlet valves, 39mm diameter, 102.67 mm length, 8 mm stem diameter
VMS-478 Seat:VMS-637 Chrome flashed steel exhaust valves, 35.2 mm diameter, 102.97 mm length, 8 mm stem diameter
aspiration, natural with multipoint electronic fuel injection
firing order, 1,8,4,3,6,5,7,2
Lotus Type 918, V8 (90o) cyl, 4 stroke, petrol engine. Click here and here
3506cc, 83.0 x 81.0 mm
550bhp @ 5400rpm
536lb ft (726 NM) @ 3600rpm
flat plane crankshaft with 5 main bearings
LM25TF aluminium alloy 'open deck' block, aluminium alloy head. Keronite coated, forged aluminium alloy pistons
2 x 2 overhead camshafts (DOHC), chain driven for middle gear, and belt driven for each bank, 4 valves / cyl - 32 valves total. 33.5mm inlet valves diameter, 30mm exhaust valves diameter
aspiration, 2 x Garrett T4 turbochargers with air/air intercooler with water injection, multipoint electronic fuel injection
GT1: 2 x 31.5mm inlet restrictors
SR1: 2 x 32.4mm inlet restrictors
electronic ignition with 4 double-ended coils
The RH bank is staggered ahead of the LH bank and contains cylinders 1,2,3,4 with cylinders 5,6,7,8 designated as the LH bank,.counting from the front in both cases.
Firing order is 1,5,3,7,4,8,2,6
dry sump
Hewland 6 speed sequential gear box
1st: 2.680/1
2nd: 1.800/1
3rd: 1.290/1
4th: 1.000/1
5th: 0.750/1
6th: 0.500/1
R: 2.500/1
Final drive 3.73/1, LSD rear differential
aluminium Type 115 chassis. 2 door coupe carbon fibre bodyschell
rack and pinion
ventilated disks all around 356mm diameter
length 4491 mm / 176.8 in
width 2070 mm / 81.5 in
height 1100 mm / 43.3 in
wheelbase 2300 mm / 90.6 in
front track 1480 mm / 58.3 in
rear track 1500 mm / 59.1 in
tires, front 275/35ZR18, rear 345/35ZR18
1050kg
drag coefficient, 0.35
Results in FIA GT Championship
| Car entry, chassis number | Car number, result | |||||||||||||
| Hocke nheim | Silver stone | Hels inki | Nurbur | Spa | Zeltweg | Suzuka | Doni ngton | Mugello | Sebring | Laguna Seca | ||||
| Team | 4h | 4h | 3h | 4h | 4h | 4h | 1000km | 4h | 4h | 3h | 3h | |||
| GT1 Lotus Racing (Chevrolet) | #13, alter nator | #13, gear box | #13, acci dent | #13, 8th | #13, eng ine | #13, eng ine | #13, in entry list | #13, acci dent | #13, eng ine | |||||
| GT1 Lotus Racing (Chevrolet) | #14, alter nator | #14, gear box | #14, 11th | #14, acci dent | #14, acci dent | #14, 29th | #14, 11th | #14, 13th | #14, 9th | |||||
| GT1 Lotus Racing (Chevrolet) | #15, alter nator | #15, gear box | #15, 17th | #15, eng ine | #15, eng ine | #15, in entry list | #15, acci dent | #15, in entry list | #15, in entry list | #15, in entry list | ||||
| MVR Lotus Racing | #19, eng ine | #19, fire | #19, eng ine | #19, eng ine | #19, in entry list | |||||||||
| GBF UK Ltd | #23, alter nator | #23, dnf | #23, 20th | #23, acci dent | #23, in entry list | #23, gear box | #23, 12th | #23, body work | #23, in entry list | |||||
| GBF UK Ltd | #24, dnf | #24, 5th | #24, 15th | #24, in entry list | #24, dnf | #24, eng ine | #24, 27th | #24, in entry list | ||||||
| Total points 11 |
6 | 3 | 2 | |||||||||||
| Statistics | ||||||||||||||
| Works Starts/finishes 40/12 | 4/0 | 5/0 | 3/3 | 5/2 | 4/1 | 5/0 | 1/0 | 5/2 | 4/2 | 2/1 | 2/1 | |||
Teams and drivers entries
Results in Endurance races
| Car entry, chassis number | Car number, result | ||||||||||
| Daytona | Sebring | Monza | Watkins Glen | Le Mans | |||||||
| Date | 2/2 | 15/3 | 23/3 | 1/6 | 15/6 | ||||||
| Duration | 24h | 12h | 1000km | 6h | 24h | ||||||
| Team\ Championship | IMSA | IMSA | Italian endur | IMSA | |||||||
| GBF (UK) Ltd | #47, in entry list | ||||||||||
| GBF (UK) Ltd | #48, in entry list | ||||||||||
| GT1 Lotus Racing, 115-07 (Chevrolet) | #49, oil leak | ||||||||||
| GT1 Lotus Racing, 115-02 (Chevrolet) | #50, not qualify | ||||||||||
| GT1 Team Lotus F. Muller, 115-06 | #51, not qualify | ||||||||||
| Statistics | |||||||||||
| Works Starts/finishes 3/0 | 3/0 | ||||||||||
Teams and drivers entries
Drawings
Chevrolet LT5 engine
Source
Source