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Alireza

Need help, early Esprit Turbo with Compomotives

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Hi everyone !

From the internet pictures, it seems that my car sits a lit bit high, any owner or fellow who has the knowledge could be so kind to give me any measurement of how low should my early Turbo sit ?

Thanks a lot !

my car seems to be a bit high, specially on front - just see the gap between the wheel and the arch !

te1ju71mf3.jpg

other early cars :

James_Bond_Lotus_Esprit_Turbo.jpg

Lotus_Esprit_Turbo_James_Bond_007.jpg

Edited by Alireza

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The two picture you have shown are both early turbos and more than likely were the dry sump/essex derivetive. The car should measure 170mm to the bottom of the chassis crossmember on the front and 170mm to the rear lower link chassis brackets. Measured at mid laden weight.

The Essex/dry sumps sat lower as the spring were 12mm shorter. B)

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Thanks for the reply !

My car (1st picture) is a dry sump car with the Compomotives (actually, one of 11 non-Essex cars produced in 1980).

So, from what you say, my car should sit at 158 mm ?


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Here are the measurements of my Nov '80 Turbo Esprit (vin#...10939) as shown on my photo below.

L-R(cm): 17, 63, 13, 15, 63, 22.

My car was converted by Lotus factory from dry-sump to wet-sump in April '81.

post-4298-1204626460.jpg

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You have 2 critical height measurements, but if you have original style suspension these are not adjustable, the height is used to indicate if there's an issue.

measure the height , on flat level ground, from the floor to the bottom of the front T of the chassis, and from the floor to the bottom of the rear hoop of the chassis that is near the gearbox.

Assuming the car is level from side to side these are the only 2 measurements that really count, and these are the ones that people quote, as Troy has done above. The heights to parts of the body can vary due to various factors, slightly different trim strips, repaired bodywork etc, so that's a good reason to use the chassis as the reference point.

Do you know if the factory changed the ride height by altering the springs when the made it wet sump? the reason the wet sumps sit higher is the additional height of the engine needing more ground clearance, thus as Troy said the springs were different.

Andy

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This subject comes up frequently.

Brian Angus was very specific at the last LEW Oxford meet. Ride height should only be measured when the car is carrying the weight of two adults and half full petrol tanks. Confirming what Andy says above, he also specifically said the height is not adjustable. If it is not in spec when the car is correctly weight loaded then there is something out on the suspension.


Regards

Mat

post-1-0302470001278592957.jpg

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OK ...

here's mine (yellow)... i'm a full (average) 4cm higher at the front and 7cm at the rear !

I feel strange !? What's going on there ?

post429812046264601bp9.jpg


avatarni7.jpg

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Hmm, well here's mine for what its worth, on an 84 S3 na

Floor to wheel arch lip - Front 64 cm, rear 67 cm

OK for verges, kerbs, speed bumps etc. & still the lowest car in the district !

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Yes Jan have you done anything to your car over the original setup? Looks low for an '85 car?

As mentioned the early (Dry Sump/Essex) cars sat much lower and IMO they were the better for it.....

The one thing I have always wanted to change on my '87 G HC Turbo over Pauls Essex is the ride height.

The lower they are the more exotic they look.................I will be looking into adjustables/lowered-shorter springs when I return to the road, though I am aware Lotus (Mr Angus) has stated not to amend the suspension - 'It was designed as an improvement over each years car'...................I believe the later changes were part of the move to Toyota suspension parts? (someone correct if wrong here)

Edited by nello

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I went through all this when I replaced my suspension in 2000,on my 85 with later suspension set up.

I had genuine Lotus Shocks & springs fitted & she ended up sitting high on the front. I later found out that the guy who fitted them hadn't loosend all the suspension componants first, so it could settle prior to tightnening up. He was suposidly a Lotus speacailist.

I eventually replaced the fronts with 'Protech' from SJ. which are fully adjustable. She now sits at 159 on front, & 165 on the rear. & looks all the better for it. also made a big difference on handling.

Daz


The need for speed can be found with a Lotus

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Wow that looks good.

What tyres are those wheels sitting on?

Those are 235/50/15 fr and 265/50/15 rr Goodyear NCT.. They are old as the hills (1993) and scary at the limit.. I just got new tires for her tho' Nitto 555R 275/50/15 and BFG KD 225/50/15 and THEY are sticky!! I am afraid to test the limit on the street ... its so far out there!

The suspension rides on Spax adjustables with 220# front and 270# rear springs... It rides fine except on hard bumps... but it corners like a kart!!

Edited by f1karting

If you set no goals you shall surely reach them..

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Those are 235/50/15 fr and 265/50/15 rr Goodyear NCT.. They are old as the hills (1993) and scary at the limit.. I just got new tires for her tho' Nitto 555R 275/50/15 and BFG KD 225/50/15 and THEY are sticky!! I am afraid to test the limit on the street ... its so far out there!

The suspension rides on Spax adjustables with 220# front and 270# rear springs... It rides fine except on hard bumps... but it corners like a kart!!

Where did you get the Spax adjustables and springs from Jan?

Looks stunning - makes the Esprit look even more exotic lowered....thats how I want mine to sit.

Edited by nello

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OK guys, here's what i've got.

I'm not unhappy with the rear height but the front is really high and i'd like to lower it by 1.5 cm

Seems that i have adj. Spax at rear but front ???

What would you do then? help welcome !

FRONT :

f1az5.jpg

f2wg8.jpg

f3ch4.jpg

REAR :

r1wm2.jpg

r2xv8.jpg


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OK ...

here's mine (yellow)... i'm a full (average) 4cm higher at the front and 7cm at the rear !

I feel strange !? What's going on there ?

post429812046264601bp9.jpg

Apologies - i took my car to a tyre specialist and found that my tyres were somewhat deflated - i will re-measure and let you know...

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Those are 235/50/15 fr and 265/50/15 rr Goodyear NCT.. They are old as the hills (1993) and scary at the limit.. I just got new tires for her tho' Nitto 555R 275/50/15 and BFG KD 225/50/15 and THEY are sticky!! I am afraid to test the limit on the street ... its so far out there!

The suspension rides on Spax adjustables with 220# front and 270# rear springs... It rides fine except on hard bumps... but it corners like a kart!!

Hello Jan

Absolutely a wicked looking ride... looks great with wider rubber too

I have a euro S3 which are lower than the USA spec cars and I think they still look like they sitting way too high. the S3 ride heights are so strange looking when compared to the Essex compomotive press car and the stock S2's. those early cars look just right with center of the wheel hub lining up even with the rocker part line in side view. Having a larger rolling diameter in the rear tires gives a slight rakish attitude which looks aggressively purposeful. I have a ton of lowered esprit pics on my home PC

Edited by pyropolymer

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OK guys, here's what i've got.

I'm not unhappy with the rear height but the front is really high and i'd like to lower it by 1.5 cm

Seems that i have adj. Spax at rear but front ???

What would you do then? help welcome !

Hi Alireza

The front shocks are also Spax adjustables but without spring seat adjustment which of course wouldn't fit in the front because the are not coil overs. The only way to lower the front is by replacing the springs with shorter ones, but as someone else has said, there is not much travel on the front suspension, so you would have even less.

But you could see if Spax do a shock with the same valving but with a shorter collapsed length, this would give you back some travel. I suspect that S1&2 shocks are too long anyway and that is what bottoms out not a bump stop (where is the bump stop anyway, I cant see one on your photos). Worth trying it only costs $$$$$$$$$$$$.

xisab B)

PS ....If everyone would measure from the bottom of the rim to the wheel arch the tyre would be eliminated from the equation - it wouldn't matter what the tyre pressures were and tyre brands are all different sizes even though they have the sam size designation on the sidewall.

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Where did you get the Spax adjustables and springs from Jan?

Looks stunning - makes the Esprit look even more exotic lowered....thats how I want mine to sit.

they were on it.. the car originally came to Canada via a fellow that works for Chase Competition (building Daytona Prototype cars) in Richmond Virginia USA.. the guy that imported it to Canada ruined the car and left it for dead.. it was a basket case when I got it in Nov 06.. fortunately the owner in VA had installed adjustable spax and tunable suspension.. which I am taking FULL advantage of now.. :)

It wouldnt be hard to built something to work if Spax are NLA.

Jan

OK guys, here's what i've got.

I'm not unhappy with the rear height but the front is really high and i'd like to lower it by 1.5 cm

Same Spax rears as me. I would take the springs to a fabrication shop and ask them to cut and re-shape the coils to a shorter free length. Just remember the front motion ratio is about 1.6 so to lower the car 16mm you only need to shorted the spring by about 10mm. Its not much.. maybe less than half a coil. I am doing that now on an 88 car (IB brakes and Toyota front setup) Mind you Im lower it 38mm. J


If you set no goals you shall surely reach them..

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David

Your comment about how low the Essex car looks in the publicity shots - I think Steve (Essex004) told me once that it didn't have any suspension (at all) to make it look aggressive/mean for the publicity shots.

One not to be tried at home !!

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Look at this pic of Dodgy Dave's Dry Sump parked with "Backmarkers" old S3 Turbo, now owned by Ambrose. Gives a good comparison.

IMG_0093.jpg

IMG_0099.jpg

IMG_0100.jpg


Regards

Mat

post-1-0302470001278592957.jpg

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the side repeaters were probably brought off ebay :evil:

as for the photo of mine and the 85 turbo now owned by Ambrose, the pic was taken After i had fitted NEW stock height suspension, in a attempt to raise the car at the front, i gained about 5mm in the end, which helped tremendously in getting me over the UK speed-ramps, but it still sits lower than other cars.

the car is however, a dry sump model with the compomotive wheels, which means different link arms and trailing-arms, hubs etc.

this all changed in late 81 when the 5 stud BBS were fitted , then the entire suspension changed in 85.


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