www.RX7fb.com

These photos show the components of the stock series 3 exhaust system including the thermal reactor, downpipe, air pipe, heat shields, exhaust port inserts, back box etc...













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I'm fairly sure S2 and S3 were all Same As, Same As.
That pic looks just like all my previous cars with their original exhausts.

Anyone want that pipe immediately above the reactor in the pic (choice of 2 of those).

Ian,

I know you mentioned these weigh a ton, but can you quantify that? I'm interested to know how much weight I may have shed, to offset the heavy turbo being added back.

I'm sure im in net gain territory still though!

RamoNZ wrote:Ian,

I know you mentioned these weigh a ton, but can you quantify that? I'm interested to know how much weight I may have shed, to offset the heavy turbo being added back.

I'm sure im in net gain territory still though!

weighed this stock factory exhaust today..... this is what it comes in at....

reactor 10kg
front section inc box air pipe etc 13kg
mid section 4kg
back box 14kg

so on a stock car we're lugging around 41 kg, and that's without the weight of the air pump and the reactor heat shield etc.
I'd say that the Elford system, which also ditches the heavy Nikki carb, the rats nest and the stock inlet manifold would only come in at around half of that.

The airpump and ACV plus architecture weigh in at another five kilos, maybe a bit more if you chuck out all the redundant hoses and unions as well

46kg all up then

I prefer Racing Beat when I have to replace..

I forgot about this - should have weighed the new system that's gone in.

However, I reckon all in I'm under 25kg

Manifold 10kg
Turbo 5kg
Mufflers 6kg
Pipes >4kg

That's 20kg net!