Esprit S1 Racecar

[LOTUSMAN33]

I have the head from 0423H on my 0182H engine so seems they do get donated at times.

Mind I have engine 13977 as well where I should have 13525 so heavens knows what car died for that donation 😬

[grayp77]

On 17/02/2022 at 11:02, plumdeplakmuis said:

Painting finished, and chassis build up started

Looks great 

[plumdeplakmuis]

Car is back on its wheels. Seat location finished and slowly starting the build up.  

[mike_sekinger]

Oh wow.  That is great progress.  Enjoy the next stage of build-up.

[EXCEL V8]

Looks great!  What wheels are those?

Pete

[grayp77]

😎👍 Looking great

 

[plumdeplakmuis]

On 23/08/2022 at 21:27, EXCEL V8 said:

Looks great!  What wheels are those?

Pete

https://www.imagewheels.co.uk/image-turbo-alloy-wheel/

7.5 X 15" Turbo - Silver ET20 Front

8.5 X 15" Turbo - Silver ET-20 Rear

For a rain set I'm considering a set of S2 speedlines, 

[EXCEL V8]

Thanks Jaap.  They are similar to the 14" "turbine" GKN alloys on the Elite that I'm restoring.  15" would be perfect to accommodate a brake disc size increase!  

Pete

[plumdeplakmuis]

Some updates, now main task is the engine. 

[mike_sekinger]

Nice to see the progress. Loving the door beams 🙂

[plumdeplakmuis]

Some new updates, engine finished and tested on the dyno. Making ~300hp 

Edited August 27 by plumdeplakmuis

[jonwat]

28 minutes ago, plumdeplakmuis said:

Some new updates, engine finished and tested on the dyno. Making ~300hp

Great progress, what transmission are you intending to use?

[C8RKH]

Absolutely stunning. Cannot wait to see your first videos shaking this down and then racing it on track.

[plumdeplakmuis]

Original Citroen gearbox is used, but with Quaife LSD and new "correct" ring and pinion gear. (But I will still take it easy with standing starts)

[Gjk]

300HP is an excellent effort! Would a chargecooler not be beneficial? Or is it too much extra weight? Or not allowed in the racing class?

[plumdeplakmuis]

Yes it would, but it's not really in the spirit of the regulations. Also will need a extra radiator then for the chargecooler. I try to keep it as it could have being build in 1980. 

[jonwat]

6 hours ago, plumdeplakmuis said:

Original Citroen gearbox is used, but with Quaife LSD and new "correct" ring and pinion gear. (But I will still take it easy with standing starts)

Good luck with that 

[kkv444v]

What is your engine spec, Jaap? Lotus did build a 300bhp turbo engine in late 1980/early '81 for Talbot; I am interested to see how yours compares.

[plumdeplakmuis]

This one is not based on the original 2ltr, I have put that aside. This is based on a 1986 engine block with new "balanced" internals, stronger conrods and slightly modified intake. Also added are new larger carburettors and a new turbo. 

[kkv444v]

I thought you might tell us what pistons you were using, which cams, carburettor specs, etc.

[drdoom]

5 hours ago, kkv444v said:

I thought you might tell us what pistons you were using, which cams, carburettor specs, etc.

. . . not something a wise competitor does.

Cheers

[kkv444v]

I didn't think anything about these engines was that secret. Was just interested as to whether he had gone proper period, using 106 or 108 cams, for example, large valves like the rally cars and so on, whether that was an HC engine or if he's doing more with the turbo, or even if everything was done to his own specs. If he doesn't want to say, though, then that's up to him.

[grayp77]

On 27/08/2024 at 11:12, plumdeplakmuis said:

Original Citroen gearbox is used, but with Quaife LSD and new "correct" ring and pinion gear. (But I will still take it easy with standing starts)

The internals of the original Citroen gearbox that was on my car wore out very quickly; and my car has less than 300hp.  I swapped it out for a turbo esprit gearbox which coped much better with aggressive starts and high impact use.

Looking forward to seeing this car moving

[plumdeplakmuis]

No secrets on the engine, 

Carburettors are Dellorto DHLA45M. Conrods, light weight flywheel and HTD cambelt and adjustable pulleys are the Garry Kemp units. Ignition is a CSI programmable ignition. Rest of the engine is standard. 

 

[plumdeplakmuis]

Some more progress, 

Video on instagram (As i can't seem to upload it here)

https://www.instagram.com/reel/C15I8aYyzsq/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==