Fitting Franks manifold And Adding A Silencer

[John A. Ross]

Today the exhaust arived, no idea what it will sound like so thats a punt.

This was to fit onto Franks 4:2:1 manifold.



The parts came from EVERY EXHAUST PART

Although came from their Ebay shop

Universal Extra Quiet 4" Stainless Steel Silencer Muffler Box With Extra Baffles

Curved Curl Down Exhaust Tail Pipe Trim Stainless Steel Curldown Tip inch mm


This is a very tight fit as Frank designed the manifold for an oval with entry left rear exit front right so the line is very very close to the rear panel.

First things first, slice off about 2" from the manifold exit pipe as this will be needed to seat the silencer back a bit.

Second slice off the front of the silencer at the slit point so it is shorter.

Third slice off the end of the tail pipe at the slits so it sits further onto the silencer end you just trimmed.

Then a bracket is needed to fix the front end of the silencer

[John A. Ross]

Dave version, a very tdy install indeed Dave Lane

[John A. Ross]

Not stainless though Dave but price was right

[John A. Ross]

And time for more mock up of the heat shield. Glad it came together as this one was last one I had to chop up, other 4 now scrap.





All seems to fit now, but here is why we mock things up.

need to cut in for the bracket



And then trim the tray so it sits on inside lip and move the screw fixing



Not sure I would use clamps on the tail pipe, reckon couple of stainless self tap screws will suit it better with a little sealant

[John A. Ross]

The results of more tin bashing and bending, had to rethink the heat shield attachment so have decided on an alternate mount method to back cross member. Will post tomorrow.

Modifed tray still needs to be checked and strengthened in a few places as I hate the rattle from them.

[Paul Conroy]

Very nice mr Ross have you started it yet

[John A. Ross]

Nope, no fire yet Paul, needs fuel first, wiating on inline filters the one I have tears the inner of the fuel line when fitted, way too sharp.

Was cheap as chips for a stainless exhaust.

[PMCG]

You would be much better off having the exhaust out the back pointing straight out horizontal rather than down to the ground.













Will add an extra 1hp

[John A. Ross]

You assume it will ever leave the garage !

Those polished side trims will add 1hp too

[John A. Ross]

Extra pictures for you Mark, the heat sheild is still missing while I contenplate honda civic twin carb mod

[Dave Lane]

Tidy looking job , just make sure the rear strap is unstressed , that is not having to bend it to make it fit , it will crack otherwise

[John A. Ross]

Dave, not stressed, but i know what its getting next time i see a drop link replaced !

[moose549]

[moose549]

This is on a 1040 Andy Jones built engine and is not too loud. I had to weld some angles onto top of box to mount the hanging bracket, and i fitted the rolled end. The silencer box is straight through.