1966 Charger 383 4bbl
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Thanks. Yes I was going to put that in at first, but my friend who restores cars said is can potentially be a water trap if there are any leaks (window rubbers etc). As I'm wanting to keep the car as original as possible I'm not changing rubbers unless really nessesary, so I bought water resistant underlay (it said its used on boats as well as cars). My plan is to have everything mechanically sound/new and the body 100% solid while it still keeping its original paint and appearance. If you see it you wouldn't think anything has been done to it. I get asked when I'm going to have it painted all the time. Which is exactly the car I want, old original, slightly tatty so if it gets a ding in a car park so be it, but not a heap.
1966 Charger, 383 4bbl, 4 speed manual trans, Sure-grip, original paint.
We had that decision to make a few years ago, on our 69 Sport Satellite. Whilst it would be nice to reduce heat and noise with something like Dynomat, the main priority was to ensure we weren't adding anything that could cause condensation and therefore corrosion.
In our Polara, we have a transparent rubber mat that extends across both front footwells; not very pretty but it came with the car, and does a job! If we leave the mat in the car when it's been parked and the engine turned off, because of the heat coming up thru the floor from the exhaust, we often get condensation forming on the underside of the mat. So we partially roll it up or completely remove it to allow the hot air to dissipate up thru the carpet.
We reasoned that it we put dynomat in and it wasn't 100% adhered to the floor, any air pockets between it and the sheetmetal could cause condensation to sit between the floor and the dynomat, potentially leading to corrosion. And with the ribbed design of the floor it was always going to tricky to ensure the dynomat is stuck down 100%.
Maybe I/we are worrying too much but we didn't want to take the chance so just used fairly conventional underlay under the carpet.
In our Polara, we have a transparent rubber mat that extends across both front footwells; not very pretty but it came with the car, and does a job! If we leave the mat in the car when it's been parked and the engine turned off, because of the heat coming up thru the floor from the exhaust, we often get condensation forming on the underside of the mat. So we partially roll it up or completely remove it to allow the hot air to dissipate up thru the carpet.
We reasoned that it we put dynomat in and it wasn't 100% adhered to the floor, any air pockets between it and the sheetmetal could cause condensation to sit between the floor and the dynomat, potentially leading to corrosion. And with the ribbed design of the floor it was always going to tricky to ensure the dynomat is stuck down 100%.
Maybe I/we are worrying too much but we didn't want to take the chance so just used fairly conventional underlay under the carpet.