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Brembo Rear Brakes - Suspension/Brakes/Wheels/Hubs/Steering/Geo - The Lotus Forums Jump to content
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fjmuurling

Brembo Rear Brakes

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I have the pre Brembo rear brakes on my 1990 SE and would like to upgrade them to Brembo ones.

So the question is do they fit in the standard 16" SE wheels.


Esprit Freak

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I think the V8's with the Brembo front discs had an Elise rear calliper.. as this is what I fitted to mine.

The Sport 350 has a rear brembo calliper, as well as the Elise one for the handbrake mechanism.

I really doubt they'd fit 16" wheels though I'm afraid. the front Brembo's certainly wouldn't, and you wouldn't want to upgrade the backs without doing the fronts or you'd end up in a wall.

Worth contacting PNM Engineering as they have loads of options that will probably suit your wheel size (and hub type.. this changed as well)

Edited by Glyn Harper

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thanks for the info Glyn.

My plan is to upgrade the brakes front and rear, however I haven't decided yet on what to use on the front (PNM do several versions).

At first I had the plan to upgrade the wheels (imagewheels.co.uk) but as I can get some new tires for the original wheels this plan is postponed. Bigger wheels would give me more options for the brakes.

The idea behind using the S4 rear brembo setup is that I can use them at a later stage as handbrake calipers ala sport 300 setup. (new rims etc needed).

    


Esprit Freak

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I fitted a set of the hispec/PNM 4 pots under 16” rears and 15” fronts. Granted the handbrake is rubbish but Hispec have an electronic handbrake you could fit or the Brembo’s as well or Possibly a wilwood mechanical handbrake caliper such as mp4.

i ran 300mm discs with the 16” se wheels and originally the 286mm disc under the 15” fronts.

If you upgrade the wheels to larger ones in the future you can keep the 4 pots and just change the disc size. I’m currently running a 330mm front disc but intend to stay at 300mm on rear.

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Anyone got some pics of the rear brembo set up, including the routing of the handbrake cables.

many thanks.

Freek


Esprit Freak

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Do you have ABS on your car '(with the Delco Moraine system)? Most probably this system fails, and changing to Brembo's front and/or rear, will not improve braking. I know, because I did... The diagnose is very simple: does your pedal pushes back, or if you depressurize, is there foam in the braking reservoir? If the answer on one of these questions is "yes", all costs and efforts will lead to nothing. Interesting to know is that the braking torque of the original Toyota fronts and original DBA rears is exactly the same as the Brembo's (as of the late S4) :The brake discs have a larger diameter, but the total surface of the brake cylinders is smaller, so that compensates. But the Brembo's are far better in dissipation, so you can brake more and longer before overheating will occur. And yes, they also look a lot better 🙂.

The routing of the handbrake cables is not easy: when Brembo's are used, there is a pass through in the rear hub. It seems possible to route around, but it never will look nice. Besides, the DBA rears are not that bad: I did temperature tests and they become hardly warmer (+ 10%) than my fronts which are upgraded to Brembo's. The technology is also the same: both have a sliding caliper. 

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No ABS on my 1990 SE, so no problem there.

I like to upgrade the front brakes from the sliding pin TMC calipers to something with better I also need to do something about the rear so that is where the rear brembo's come into play.


Esprit Freak

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