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Esprit Brake Upgrades

52 posts in this topic

If you've upgraded the brakes on your Esprit please post details below and what was involved inc work/costs and how you feel the results have panned out. Please be honest, I'm hoping to collate this in to a wiki article for current & future owners to use as a reference guide.

Please state info along the lines of; model of Esprit, old system, new system, cost, what you (or your spannerman) had to do, was it worth it and so on.

Thanks :(

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Hi Bibsmeister,

my 6-pot Hi-spec upgrade is fitted Sat at PMN engineering and so will be able to review monday after they have bedded in a bit. I will inlcude costs etc. For you.

Alex

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Ok. I have done an upgrade. I will write it up as soon as I have got some time :(

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Wilwood rotors, bells from rallysport (have to be machined to requirements), callipers from a donor GTO twin turbo, pads, ali mounting block for callipers (pretty basic block with 4 holes drilled in).

Came to around

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Very timely thread - I need to do this....!

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1994 S4 with original TMC brake system

Upgraded to:

12.19" Vented Rotors on all four corners

6-Pot Wilwood calipers on the front

4-Pot Wilwood calipers on the rear

Stand alone parking brake caliper on each rear caliper

Hat, Bracket, and all necessary hardware included

All Stainless Steel Braided Brake Lines

All Brake Pads, Front, Rear, and Parking

System was ordered in August of 2008 and Installed September 2008.

At the time the Brake Upgrade was a total cost of $3,700.00 USD with $151.90 USD shipping

My Garage which performs the work on all of my cars charged me a total of $325.00 USD to install.

All parts were ordered via Lotus Prepared By Claudius in Cerritos CA USA. I was pleased with my transaction and my correspondence with them.

I could have done the work myself but as a few of the people here know my time is very limited due to my international business.

I have since placed approximately 10,000 miles on the system. The difference is amazing. I still have the standard pedal feedback unique to the Esprit. However, Stopping distances are significantly lowered and the security of knowing that you can knock off speed quickly is a relief. One of the best modifications that I have so far done to the Lotus. Increasing power and speed is great as long as you can reverse the effect. At this point still plenty of pad left and rotors look as they did once out of the box. I have noticed that there is no pull with these as I had with my TMC brake system. I seated and seasoned the brakes using the method used by most racing crews. No warping or wearing of the rotor and I am hard on brakes. ( firm believer in using the brakes to bleed speed when the radar detector sounds off...lol )

Any question please feel free to PM me anytime. I hope I covered all information in here.

post-4361-1242158790_thumb.jpg

Edited by cjtpb13

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Oooh, good thread. I used the factory AP calipers from the Parts Sale which were very reasonably priced and contained everything needed to fit a Brembo car. The discs (rotors) are from PUK and were a touch expensive at around 1000 euros, but I like 'em a lot.

The pads are standard 350 Sport fit as supplied in the caliper kit and seem to be wearing well.

brakes_001-1.jpg

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1989 SE Original

1st Upgrade PNM Hi-Spec 4pot kit Front and Elise Brembo Rear With grooved discs and Hawk, EBC Red, Mintex C-tech all round and then finally Pagid Blue. All hoses stainless - loadsa money to fit Sportomotive...parts took ages to come and slowed things - result OK but the car subsequently got faster due to upgrades in performance...

2nd Upgrade V8 Brembo Caliper Fronts with drilled and grooved EBC Discs, EBC Red Pads, Elise Brembo Rear with Pagid Blues - V8 Hubs fitted to incorporate OZ futura wheel modification and longer S350 wheel nuts and hoses. I would recommend this and suits my driving now with current performance although my car is running about 30% less than it can due to a few niggles. I would NOT recommend the company who fitted the calipers as they were not fitted correctly resulting in a near fatal accident and took over 6 months to do 2 weeks work.

I want AP's next but am not prepared to pay 1000euros for discs.

Edited by SE Owner :-D

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Great idea for a topic thread! I wanted to add a question: Many of us have the pre-brembo setup and we need to fabricate mounting brackets etc to get the good brake set ups to work. Would anyone be willing to share their braket dimensions or the skematics of what they created on order to get the better brakes to fit?

Great info so far!

Jason

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I can get these discs and bells for S350 or 2002 AP calipers for about

post-1-1242296274_thumb.gif

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Cheers Dave - you tease!

Now are there any AP calipers for sale cheap....?

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The pads are standard 350 Sport fit as supplied in the caliper kit and seem to be wearing well.

Hi Graham,

Nice set up. I'm sure I've seen it somewhere else. Oh yes, same as mine, with the exception that I no longer have the standard pads. The standard pads were great, but squealed a bit on my car and eat the rotors (much brake/rotor dust)! Hence have now gone to Red Stuff. Lot less rotor ware, but the bite isn't as good.

On a GT3 with the reduced car weight, must be absolutely fabulous.

Regards,

Peter.

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I upgraded the brakes all round on my 89 SE a couple of years ago using kits from PNM.

Bit's / Costs

Hi-Spec 4-pot Front Sloted disc kit from PNM + braided hoses

V8 Rear Brembo kit with Sloted discs from PNM + braided hoses

Hawk Fero carbon front pads, Standard rear pads

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The sport 350 caliphers and disks are a very close fit under s4s wheels, ie credit card. Not had a problem but not been on track, hoping the caliper itself does not expand too much!

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I've got a complete set of HiSpec front & rear system (4 pot) with brackets, s/teel braided hoses & bolt kit for my 90 NA from PNM.

The whole set of brakes costs me with shiping to SG around

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Hi All,

Below is a modifies PM I sent to another lister because I am lazy, if it doesn't make sense in places that is probably why. :)

I opted for AP 343mm x 32mm at the front and I am still 100% stock on the rear but may need to do some work there. The standard front discs are 320mm x 32mm !!

These were the bolted type and drilled to keep the stock look. This was probably not the best choice for several reasons. The calipers are only rated for 330mm (I knew this ahead of time and checked with AP if I could go larger and there were no real concerns from them) so when I spaced out the caliper to take the larger diameter I had to drop the pads slightly in the caliper to clear the outer edge of the disc.

The additional diameter has slightly altered the brake bias a little too much to the front, the rears barely get tickled.

While they were brilliant at the Nurburgring for a weekend they have subsequently developed high spots giving brake juddder. I think the floating variety would have helped here. Since they are less than 2000 miles old (one weekend at the Ring and two track days). Despite the judder they still worked well to stop the car even from a few 160mph (indicated, 150mph on a GPS :baby: ) runs at RAF Odiham. I will look to get these re-surfaced rather than replaced but may have to change for floating grooved discs in future. I was using Pagid Orange pads and have switched to Pagid Blue's to see if the judder is reduced temporarily.

I too spoke with BG Developments in the early stages but they didn't seem very reactive and nothing much happened. I had my gearbox upgraded by GTO Engineering and they recommended Anthony at http://techcraft.co.uk. He was very professional and fought me when I wanted to do something that wasn't 'proper' engineering. He virtually insisted on machining my existing caliper mounting brackets to insert spacer pillars rather than just sandwich spacers between the caliper and the bracket. I can't knock him for integrity. :D

I supplied my original disc and bell for Anthony to take measurements from. The cost for the discs, the bells (which were subcontracted out I think, but were really nicely made and hard anodised) and the caliper mount machining and spacers was about

post-879-1242550703_thumb.jpg

post-879-1242550735_thumb.jpg

post-879-1242550756_thumb.jpg

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So what is to stop me from buying any calipers, getting a mount made and sticking them on my car?

What are the restrictions on what discs I can use? Can I have bells made up to match my current config and add rotors to match the calipers? How do I ensure the rear brakes are still in proportion to the fronts?

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Nothing really, your main restrictions are the wheel inner diameter.

The caliper and pad determine the disk width/thickness.

The 17" standard front wheel limits the disk and the caliper otherwise the wheel would not fit on !

The other consideration is un-spring weight, brake balance and so on.

Yes you should be able to have rotors made for you etc.

I'm also going the AP route (sometime before I die) with a standard off the shelf 330x32mm part which is only

Edited by USAndretti42
I'm sure I had just read that quoted text

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It's the first time an Esprit has been raced in South Africa, and I had great fun this week end in Phakisa Raceway, Welkom, but did find that the brakes were a problem in standard form, even after using Castrol SRF fluid. I will have to look at upgrades similar to what some of you have done. It's a lot to ask from a 1100 Kg car in their standard form, in race conditions.

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I am truely showing my inexperience here but...who cares...I think this is worthwhile to know.

My ultimate goal is to upgrade to an AP racing brake upgrade but the costs of doing so are high is I buy the Lotus products. Could someone break down for me what I would need to buy from AP racing to create my own setup that would mimick the S350 setup? This way I could start piecing together the parts I would need.

Thanks so much

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Hi Jonathan,

That's a pretty good run down of what you need but Iam a little confused. Where do you get the calipers from?

Is the AP discs at

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I'd have thought so, Jonno has a caliper set he bought in the sale.

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You'll need a new hat/bell at about

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The PCD is unique to Lotus, sorry guys. Your best bet regarding hats and bells is a get a copy cat option from either Dave or Marcus for a small fraction of the price, getting cheap AP calipers off the shelf - eeek good luck!!

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What about the AP setup that was fitted to the Sport 300? is that an easier upgrade?

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