340 3" exhaust unbearable
Hi guys first post here. At my wits and with this. "Mild build" 340 727, heads, XE268 cam, headers, airgap, msd etc. Timed as always around 18&35. Changed my leaky temporary 2 1/4 exhaust for my fabbed 3" now the thing resonates so bad I can't get it out of the driveway. Under wot it sounds like the general Lee but anything lower and you can't hear the engine over the low low frequency resonation. Changed the welded body turbo style mufflers in the pic to my former rolled seam turbo that were on it (2 1/4) but little change. I have full 3" proper turbos coming to hopefully help.
I know 3" is a little big but fits future plans. Will some resonators/glass packs ahead of the mufflers help? It is full back to the bumper.
Any ideas?
Hi guys first post here. At my wits and with this. "Mild build" 340 727, heads, XE268 cam, headers, airgap, msd etc. Timed as always around 18&35. Changed my leaky temporary 2 1/4 exhaust for my fabbed 3" now the thing resonates so bad I can't get it out of the driveway. Under wot it sounds like the general Lee but anything lower and you can't hear the engine over the low low frequency resonation. Changed the welded body turbo style mufflers in the pic to my former rolled seam turbo that were on it (2 1/4) but little change. I have full 3" proper turbos coming to hopefully help.
I know 3" is a little big but fits future plans. Will some resonators/glass packs ahead of the mufflers help? It is full back to the bumper.
Any ideas?