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Hi

Has anyone tried or considered a traditional supercharger for the Esprit?

There are suppliers like Paxton http://www.paxtonauto.com/ and Vortex http://www.vortechsuperchargers.com/ that have superchargers in different sizes.

To me it looks like it should be possible to swap the aircon pump for a supercharger.

What do you think?

Bjorn

Dream as if you'll live forever. Live as if you'll die today - James Dean

"If it isn't leaking, it's empty" - Comment from a British sportscar enthusiast after being made aware of an oil slick under his car

Lotus Car Club Norway (LCCN) - lccn.no

LCCN on Facebook - http://www.facebook.com/#!/groups/LotusCarClubNorway/

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It should be no significant problem to install a supercharger,

It should even be possible on the airco pump location.

BUT, you might as well go for a turbocharger,

that should be a lot easier as all parts are easily available.

Installing a supercharger looks easy, but you need the turbo intake system anyway

for the supercharger, or go for an injection set.

Besides this you need a set of custom made ducting.

If you just want more power, take the turbo route, (It's more original and lotus style anyway)

If you are after a supercharger sound, why not try to install it.

VAN DER LEE Turbo Systems     -      www.vdlee.com

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Underbonnet temperatures must be lower with a supercharger compared with having a glowing red hot turbo, which if converting an NA car must be worth something (don't need the extra sill vents or slatted boot lid.)

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I don't see Paul Matty selling Turbos for

Edited by Yeti

Dream as if you'll live forever. Live as if you'll die today - James Dean

"If it isn't leaking, it's empty" - Comment from a British sportscar enthusiast after being made aware of an oil slick under his car

Lotus Car Club Norway (LCCN) - lccn.no

LCCN on Facebook - http://www.facebook.com/#!/groups/LotusCarClubNorway/

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  • 2 weeks later...

maybe they left out a '1' in front of the price.

Bjorn

Dream as if you'll live forever. Live as if you'll die today - James Dean

"If it isn't leaking, it's empty" - Comment from a British sportscar enthusiast after being made aware of an oil slick under his car

Lotus Car Club Norway (LCCN) - lccn.no

LCCN on Facebook - http://www.facebook.com/#!/groups/LotusCarClubNorway/

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  • 3 weeks later...
  • 8 months later...

Hi

Has anyone tried or considered a traditional supercharger for the Esprit?

There are suppliers like Paxton http://www.paxtonauto.com/ and Vortex http://www.vortechsuperchargers.com/ that have superchargers in different sizes.

To me it looks like it should be possible to swap the aircon pump for a supercharger.

What do you think?

Bjorn

I think that the best / cheapest way for you to get the performance you need, is to sell your LHD S3 to me, and buy an US turbo Esprit from the States...

I

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Funny - I've been thinking about supercharging for a few months now - on the whole it would be more reliable than the turbo route and the surely power curve would be smoother?? (I'm surprised we can't find someone who has tried it already!).

I recall the Lancia Beta range (another of my favourite cars) to have a very nice supercharger system fitted to the later models branded as #"Volumex". You can get these on Ebay quite resonably priced!

Those engines were twin cam and were 2litre engines so maybe they would be a good doner to bolt onto the Lotus 2.2 without too much modding.

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I'm sure some people have done the supercharger upgrade to Excels, I mentioned in passing that I was thinking about it when I was at Lotusbits , and Mike said people had done it, and yes it was placing the supercharger where the air con pump would go.

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Is Paul Matty's not generally liked by peeps here then? I was thinking of using them when I get my Esprit, they're the closest specialist independent to me as far as I know!

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  • 2 weeks later...

I have a bit of info on the Lancia Volumex if anyone wants it as I have a 1985 Lancia volumex and 1980 S2 Esprit.

The supercharger is a 1 litre driven at +40% engine speed to get 7 psi boost (at all revs)

Top end power is lower than a turbo engine but low/mid range torque is great. Good on a twisting track. Makes not a bad tow car too.

The Supercharger requires a lower compression just like turbo. The Volumex is 7.5 to 1 compared to 8.9 to 1 for the NA engine.

Graeme

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I have to admit I dont really understand to much of the pros and cons but I did see that BMW Mini Copper S are changing from a superharger to a Turbo. Im not sure the reason but the BHP is up from 140 to 175.

If it were me I would go for a tubular exhaust manifold (no probs on the N/A) gas flowed head and K&N filter (still using the airbox) maybe even look at a induction system. I think I have read people can tune a N/A to about 200BHP?

Just a thought

Buddsy :(

 

"Belief is the enemy of knowing" - Crrow777

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People often look at peak power only. It is more useful to look at torque and power curves. Remember a supercharger gives instant and full boost the instant the throttle is opened. The VX gives solid acceleration from 1500rpm and I rarely put it past 4000rpm. The terrain in this area can be mountainous and twisting. The VX can climb theses hills in a more relaxed manner than the NA Esprit despite having 20 bhp less and weighing 200kg more.

Power is torque times the revs so if the engine is tuned to deliver in the mid rather than high revs the peak power will be less but be delivered in a more useful rev band.

I have a Landrover. Only 81bhp but this is at 2500rpm. A couple of days ago I hired a 2 ton digger on a trailer that it pulled just fine (including across a field)

Actually it is more useful to look at BMEP

http://www.epi-eng.com/piston_engine_technology/bmep_performance_yardstick.htm

There is some talk of the power required to drive the supercharger but the VX for example uses a tamer inlet cam to increase efficiency (the air is being pushed in by a positive displacement pump so higher lift and duration not required) and has a taller diff ratio compared to NA model.

At high revs it develops a real growl as shock waves from the supercharger in the inlet. The newer Sprintex screw type are superior to the rootes type as in the VX.

My Lancia VX has done 300,000 km and the supercharger has had no servicing apart from new oil and grease ever 2 years.

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  • 1 month later...

I figured knowledge is power so I have gone and bought myself a book on Supercharging. Gives me something to read during the winter months :rolleyes:

Maybe I'll start on the supercharging project next winter - after the gearbox rebuild.

Bjorn

I think that the best / cheapest way for you to get the performance you need, is to sell your LHD S3 to me, and buy an US turbo Esprit from the States...

I�m serious, btw.

-Jani

Hi Jani,

Tempting as your offer might be, I don't think I'll swap for a turbo car. Personally I think the S3 NA lines are much cleaner than the turbo. The turbo is great looking, but I find it a bit "cluttered" compared to the NA.

Bjorn

Dream as if you'll live forever. Live as if you'll die today - James Dean

"If it isn't leaking, it's empty" - Comment from a British sportscar enthusiast after being made aware of an oil slick under his car

Lotus Car Club Norway (LCCN) - lccn.no

LCCN on Facebook - http://www.facebook.com/#!/groups/LotusCarClubNorway/

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