The Lotus Esprit Race Car I Bore You With
21 February 2000, 12:59 AM
#1
Scooby Regular
Thread Starter
below are some pictures of the Lotus Esprit GT Silhouette racer my friend Simon Allaway and I built.
The engine is a prototype 5 Litre V8 we built for the esprit, produces 420BHP in prototype 1 stage as pictured, has gone on to produce over 500BHP in a race car in new zealand on stage 2 heads.
The Ultimate to date is 947BHP in twin turbo config for a record attempt car.
The car races in the Ace Vehicle Deliveries Sports/Saloons series all over the UK.
Thought i would show some piccies so you can see i am not talking bollicks.
thanks to mark champion for hosting the pictures.
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[This message has been edited by johnfelstead (edited 21-02-2000).]
The engine is a prototype 5 Litre V8 we built for the esprit, produces 420BHP in prototype 1 stage as pictured, has gone on to produce over 500BHP in a race car in new zealand on stage 2 heads.
The Ultimate to date is 947BHP in twin turbo config for a record attempt car.
The car races in the Ace Vehicle Deliveries Sports/Saloons series all over the UK.
Thought i would show some piccies so you can see i am not talking bollicks.
thanks to mark champion for hosting the pictures.
</img></img></img></img></img>[This message has been edited by johnfelstead (edited 21-02-2000).]
21 February 2000, 01:58 PM
#5
Scooby Regular
Thread Starter
donnington was lapped last year in 1min 15secs, top speed 155MPH down the back straight.
If you want a proper techie spec i can put it up here.
The engine is just undergoing its winter rebuild at the mo, we are upping the cam so should give approx 450BHP, we were getting 420BHP on a fast road cam.
As for s de b, in his dreams i'm afraid.
lol
If you want a proper techie spec i can put it up here.
The engine is just undergoing its winter rebuild at the mo, we are upping the cam so should give approx 450BHP, we were getting 420BHP on a fast road cam.
As for s de b, in his dreams i'm afraid.
lol
21 February 2000, 02:03 PM
#6
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John it would be interesting to see 
P.S. Do you know of any relatively cheap decent Cossies for sale as mine got written off after only a week and a half of ownership due to a ?!£@$% in a van, bastid
P.S. Do you know of any relatively cheap decent Cossies for sale as mine got written off after only a week and a half of ownership due to a ?!£@$% in a van, bastid
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21 February 2000, 03:16 PM
#9
Scooby Regular
Thread Starter
Esprit specification.
Engine : 5 Litre V8, rover cross bolted block, internally milled to clear conrod throw, alloy mains line bored for chevy main bearing size.
Steel Billet Crank, one of only 3 produced using chevy bearing size, manufactured for paris/dakar works Range Rover.
Heads, completely new design by wildcat engineering, first prototypes on this engine, Ford Nascar hollow pushrods, kenny bell roller rockers, solid billet steel rocker shaft. 1.94" inlet 1.8" exhaust. (stage 2 heads use 2.01" inlet 1.94" exhaust). Stainless steel O ring in heads for head gasket seal, 13:1 compression.Bronze guides, isky duel valve springs, crane followers
Steel H beam rods. ARP bolts, omega flat top forged pistons with valve pockets, floating gudgeon pins.
Solid crane followers, kent 266 cam, oil feed to heads through pushrods.
3 stage dry sump system (2 scavenge,1 feed), 19 row oil cooler, 10 litre dry sump tank.
4 x dellorto twin downdraft 48's, Holley high flow nascar fuel pump, twin feed fuel rails via twin high flow pressure regulators.
36 litre duel fuel tank system, typical 4 MPG
Exhaust: Hand built 2.5" primary manifolds, balance pipe for cross bank extraction, hand built repackable stainless twin exhaust 4" bore.
Gearbox: Hewland DG300 F1 gearbox, variable ratio's set for each circuit. Adjustable ramp plated diff, internal oil pump drive to feed crown wheel and pinion.
Brakes: F3000 outboard front AP racing calipers (stainless steel pistons), Performance friction carbon metalic pads. AP racing F3000 disks (centre cooled). F3000 inboard rear brakes, spec as front on thinner disks.
Suspension: Rear, march F2 rear magnesium uprights, fabricated suspension links, pickup points optimised for roll centre location, adjustable hollow tube antiroll bars. Front Mrch F3. All joints are gold or silverline rose joints.Koni 2 way adjustable race shocks, adjustable platform, 2.25" race springs, air cooled for consistent charicteristics.
Wheels: Rear F3000 speedline magnesium, center lock 15" wide 13" diam,Avon F3000 slicks and wets. Front split rim compomotive 10" wide 13" diam on Avon slicks and wets.
Chassis: Hand built space frame with GRP Silhoutte of lotus esprit MK1, all panels detachable. F1 carbon rear wing, front splitter and dive vanes, all panels molds hand built.
weight 710Kg wet race weight
power 420BHP at 6800RPM, limited to 7400RPM, capable of 8200RPM( cant aford a blow up)
Oh and 5 years blood, sweat and tears.
Come and have a watch this year, our car is not the quickest in the series, its probably the most spectacular grid of specials in the UK, the only rules are that the silouette must match a production car and the wheelbase must be within 5% of the original car.
One of the quickest cars is a very similar spec to ours but with a skoda silloutte and 550BHP of Andy Rouse cossie turbo
You dont laugh at that i can assure you
Engine : 5 Litre V8, rover cross bolted block, internally milled to clear conrod throw, alloy mains line bored for chevy main bearing size.
Steel Billet Crank, one of only 3 produced using chevy bearing size, manufactured for paris/dakar works Range Rover.
Heads, completely new design by wildcat engineering, first prototypes on this engine, Ford Nascar hollow pushrods, kenny bell roller rockers, solid billet steel rocker shaft. 1.94" inlet 1.8" exhaust. (stage 2 heads use 2.01" inlet 1.94" exhaust). Stainless steel O ring in heads for head gasket seal, 13:1 compression.Bronze guides, isky duel valve springs, crane followers
Steel H beam rods. ARP bolts, omega flat top forged pistons with valve pockets, floating gudgeon pins.
Solid crane followers, kent 266 cam, oil feed to heads through pushrods.
3 stage dry sump system (2 scavenge,1 feed), 19 row oil cooler, 10 litre dry sump tank.
4 x dellorto twin downdraft 48's, Holley high flow nascar fuel pump, twin feed fuel rails via twin high flow pressure regulators.
36 litre duel fuel tank system, typical 4 MPG
Exhaust: Hand built 2.5" primary manifolds, balance pipe for cross bank extraction, hand built repackable stainless twin exhaust 4" bore.
Gearbox: Hewland DG300 F1 gearbox, variable ratio's set for each circuit. Adjustable ramp plated diff, internal oil pump drive to feed crown wheel and pinion.
Brakes: F3000 outboard front AP racing calipers (stainless steel pistons), Performance friction carbon metalic pads. AP racing F3000 disks (centre cooled). F3000 inboard rear brakes, spec as front on thinner disks.
Suspension: Rear, march F2 rear magnesium uprights, fabricated suspension links, pickup points optimised for roll centre location, adjustable hollow tube antiroll bars. Front Mrch F3. All joints are gold or silverline rose joints.Koni 2 way adjustable race shocks, adjustable platform, 2.25" race springs, air cooled for consistent charicteristics.
Wheels: Rear F3000 speedline magnesium, center lock 15" wide 13" diam,Avon F3000 slicks and wets. Front split rim compomotive 10" wide 13" diam on Avon slicks and wets.
Chassis: Hand built space frame with GRP Silhoutte of lotus esprit MK1, all panels detachable. F1 carbon rear wing, front splitter and dive vanes, all panels molds hand built.
weight 710Kg wet race weight
power 420BHP at 6800RPM, limited to 7400RPM, capable of 8200RPM( cant aford a blow up)
Oh and 5 years blood, sweat and tears.
Come and have a watch this year, our car is not the quickest in the series, its probably the most spectacular grid of specials in the UK, the only rules are that the silouette must match a production car and the wheelbase must be within 5% of the original car.
One of the quickest cars is a very similar spec to ours but with a skoda silloutte and 550BHP of Andy Rouse cossie turbo
You dont laugh at that i can assure you
28 February 2000, 12:33 PM
#12
Scooby Regular
Thread Starter
race dates for the esprit if you fancy a look at some of the quickest race cars in british motorsport.
april 2 Mallory Park
april 8 Oulton Park
may 1 Cadwell Park
june 10/11 Anglesey
july 9 Mallory Park
august 5 Oulton Park
august 26/28 Oulton Park
sept 2 Oulton Park
sept 23 Oulton Park
oct 1 Mallory Park
oct 7/8 Croft
april 2 Mallory Park
april 8 Oulton Park
may 1 Cadwell Park
june 10/11 Anglesey
july 9 Mallory Park
august 5 Oulton Park
august 26/28 Oulton Park
sept 2 Oulton Park
sept 23 Oulton Park
oct 1 Mallory Park
oct 7/8 Croft
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