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Resurrection and development of V8 Project GT1 - Page 3 - Esprit 'Project & Restoration' Room - The Lotus Forums #ForTheOwners Jump to content


Resurrection and development of V8 Project GT1


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I'm on Holiday for two weeks, so time to get to grips with the engine; Stripping the old this afternoon. 

A few surprises, but nothing too dramatic.  I'll get to see the state of the BE shells and crank tomorrow.

IMG_1472.thumb.JPG.12ff0ed859d309a14f66adc7fe2017e1.JPGIMG_1478.thumb.JPG.83465b1c634b457dd7a79eba4b45aee5.JPG

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1996 Esprit V8, 1998 Esprit V8 GT, 1999 Esprit S350 #002 (Esprit GT1 replica project), 1996 Esprit V8 GT1 (chassis 114-001), 1992 Lotus Omega (927E), 1999 Esprit V8SE, 1999 Esprit S350 #032, 1995 Esprit S4s, 1999 Esprit V8 GT (ex-5th Gear project), 1999 Esprit V8SE ('02 rear)

1999 S350 #002 Esprit GT1 replica

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BE not bad considering the additional power.  Mains okay - crank just need a journal polish and will be ready for another stock engine sometime.

Time now for inspection and clean-up....IMG_1487.thumb.JPG.a363f583a964f0f0679be9d7f33b31a8.JPGIMG_1492.thumb.JPG.12c1625e8c459e647bec2c9530d1dd4e.JPG

 

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1996 Esprit V8, 1998 Esprit V8 GT, 1999 Esprit S350 #002 (Esprit GT1 replica project), 1996 Esprit V8 GT1 (chassis 114-001), 1992 Lotus Omega (927E), 1999 Esprit V8SE, 1999 Esprit S350 #032, 1995 Esprit S4s, 1999 Esprit V8 GT (ex-5th Gear project), 1999 Esprit V8SE ('02 rear)

1999 S350 #002 Esprit GT1 replica

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  • 2 weeks later...
  • 1 month later...

On the topic of bespoke lotus V8 engines,  i remember years ago a fellow had a webpage of a lotus v8 project  it was a black G  turbo,  but he had built a custom lotus V8 engine for it, and had also planned to use the lotus V8 chassis,   That engine also looked stunning,  I think he sold the car but not sure what he did with the engine and chassis ?  

Such a shame as it was a great project,   Sorry for the thread high jack Mike :)

A

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No it was not Mikes,     The guy called it proiect lotus v8 m71 esprit,   i have just seen it on the web but cant post links,  it may of been dark green from the pics,  but the engine he built was lovely,  Like one of Mike S engines with custom headers and intakes on a lotus 918 engine

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The project still lives on - I know who built that engine and what is contains.  It's got forged pistons and the motorsport plenums, but the rest of the engine is stock.

http://projectm71.com/M71.html

It's going to be a cracking project when it get's completed.

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1996 Esprit V8, 1998 Esprit V8 GT, 1999 Esprit S350 #002 (Esprit GT1 replica project), 1996 Esprit V8 GT1 (chassis 114-001), 1992 Lotus Omega (927E), 1999 Esprit V8SE, 1999 Esprit S350 #032, 1995 Esprit S4s, 1999 Esprit V8 GT (ex-5th Gear project), 1999 Esprit V8SE ('02 rear)

1999 S350 #002 Esprit GT1 replica

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Was it the same guy who started the project Mike,  or is the project in new hands ?    CANCEL JUST CHECKED HIS PAGE !

  I thought the guy has sold it,  as the picture of the car been towed away I presumed he had sold it ,  chap was struggling for workspace and put it into storage ,  glad he has found a workshop to allow him to continue his dream build :)

 

A

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  • 3 months later...

Progress has been really limited by the fact that I'm up to my eyes in engine rebuilds for other people.

Current status:

- interior is removed as I will replace with a lightweight material from Steve

- moulds for the arches are in preparation for visible cf parts (update coming early next year)

- XShift transmission on hold pending funding (it's 20K€ of invest)

- Damaged Ex-GT1 crank is being checked for possible re-work.  Would also result in the need for custom rods

- Heads are still to be sent away for CNC porting

- Plenums are in fabrication

- Exhaust manifolds also in fabrication

The engine is most likely not going to be built until we are well into next year.

1996 Esprit V8, 1998 Esprit V8 GT, 1999 Esprit S350 #002 (Esprit GT1 replica project), 1996 Esprit V8 GT1 (chassis 114-001), 1992 Lotus Omega (927E), 1999 Esprit V8SE, 1999 Esprit S350 #032, 1995 Esprit S4s, 1999 Esprit V8 GT (ex-5th Gear project), 1999 Esprit V8SE ('02 rear)

1999 S350 #002 Esprit GT1 replica

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On 19/06/2019 at 11:37, mike_sekinger said:

140mm clutch arrived today - now I can finalised the transmission spec and get that started.  Nice meaty 1.16" spline on the hub.

It's going to have a bespoke flywheel fabricated locally.  Here compared to 4-paddle AP twin plate:IMG_1454.thumb.JPG.9d166cb2f9a234e6ed64a0d4e32d9d7a.JPGIMG_1455.thumb.JPG.3965fafe229c7b5ec371bfdcbeff3ac5.JPG

 

 

Mike,

 

Would you expand on the type/specs and make of this compact clutch?

Thanks

John

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The clutch is an AP6913-OH03-FN

https://apracing.com/race-car/carboncarbon-clutches/o140mm-5-push-type/triple-3-plate-assemblies/cp6913-endurance-spec-clutch-family-10-bolt-mounting

It's got a huge torque capacity and was selected as I plan for a sequential straight-cut dog transmission, with clutch-less changes once moving.

1996 Esprit V8, 1998 Esprit V8 GT, 1999 Esprit S350 #002 (Esprit GT1 replica project), 1996 Esprit V8 GT1 (chassis 114-001), 1992 Lotus Omega (927E), 1999 Esprit V8SE, 1999 Esprit S350 #032, 1995 Esprit S4s, 1999 Esprit V8 GT (ex-5th Gear project), 1999 Esprit V8SE ('02 rear)

1999 S350 #002 Esprit GT1 replica

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  • 4 months later...
  • Gold FFM
1 hour ago, Barrykearley said:

I simply cannot believe your luck with them lower links.

You'll be believing the Americans put a man on the moon next...

There's another photo somewhere of Mike sweating cursing covered in oil reaching for the angle grinder. 😂🤣

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13 hours ago, Steve V8 said:

You'll be believing the Americans put a man on the moon next...

There's another photo somewhere of Mike sweating cursing covered in oil reaching for the angle grinder. 😂🤣

I was very fortunate.   The only cutting necessary was to shorten the length of the top ball joint thread, as I only had a short version if the 11/16 socket.  Everything else was a doddle.  Even the ABS sensors came out of the hubs by hand.

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1996 Esprit V8, 1998 Esprit V8 GT, 1999 Esprit S350 #002 (Esprit GT1 replica project), 1996 Esprit V8 GT1 (chassis 114-001), 1992 Lotus Omega (927E), 1999 Esprit V8SE, 1999 Esprit S350 #032, 1995 Esprit S4s, 1999 Esprit V8 GT (ex-5th Gear project), 1999 Esprit V8SE ('02 rear)

1999 S350 #002 Esprit GT1 replica

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