How well does a roadster build prepare you for a coupe build?

[skullandbones]

You see the question. I am curious because I think it might be the next logical build. The only thing I don't like about the roadster is no top if you need one (in AZ that's not a big issue most of the time). But with the summer sun and 115 degrees, a top is a good idea. Unfortunately, I don't like the roadster with a top or bimini. So I started looking at the coupe specs and then the videos and the history behind the whole project. I think I'm in love. The coupe has everything the roadster doesn't. Don't get me wrong. I think the roadster is great (I've got one)! But it would be nice to get into a comfortable cabin out of the sun and maybe even listen to the radio or someone talking, occasionally.

Another factor is that eventually, I want to change to a more powerful engine for the roadster. I could transplant an already proven powerplant into the new project car (one less thing).

That's why I brought the question to you guys because I know some of you have built both and many of you offer advice to roadster guys like me.

Thanks! WEK

[riptide motorsport]

They are essentially the same, the Only real difference is in the bodywork. The ca is not waterproof, it's waterproofish!!

[rj35pj]

From what little I have experienced so far ( I'm early in my coupe build) I think your experience with the roadster would be very valuable and alot of what you have already learned and know would apply. However, you mentioned listening to the radio. I am not putting a radio in my coupe because I don't expect I will be able to hear it over the engine. :)
Having the project finally in my garage is ...... well..... I have to go look at it just to make sure it is really there!!
Good luck and I would go for it if I were you.

[xlr8or]

I would imagine it would be like doing it over but with more body work and interior to do.

[toddhack]

This is such a timely post for me. I sold my Roadster and I'm planning on building a MK4....but I can't stop looking at the type 65 coupe posts and thinking about building this beautiful car but wondering what it would take. I have the car built in my head, just deciding which would be best for my next build.

[MikeJones]

I've done the coupe and helped a friend with their roadster. Other than the amount of body work, they are basically the same concepts so you are way ahead of the game. Not harder just a few more pieces to fit together.

It isn't quiet like a production car. It also isn't cool temperature-wise. The extra glass makes it a greenhouse, so you would need good air conditioning. Don't cut corners here.

I've started doing some soundproofing in my coupe. I have a fairly plain 302 (30 over, better intake, etc aimed at 350hp) so not over the top, use the FFR sidepipes and the rest is basically a stock coupe. I've tracked volume inside at idle (80dB) and driving for the base case (I have Lizardskin on all aluminum but no soundproofing). I kept rpm standard (2700rpm) in each gear and volume gradually increases from 88 in first to 109dB in fifth. While doing some spirited driving, peak volume hits 116dB. At these volumes, you can't really listen to the radio and talking is at an almost yell. At this stage, much of the noise is road whine and gears.

So far, I've added Damplifier Pro to the floor of rear trunk and have also insulated the doors and the lower door sill (only drivers side done so far). I have to complete this then adding luxury liner pro, then carpet. At this stage, I now hear the engine over road whine up until about 4th gear. No data yet but it makes a big difference to the ear.

Regards, Mike

[Shawnski]

While I have not built a roadster, the Coupe is a challenge in terms of body work. Many intersecting seams that you need to blend, and doors and hood that can be a nightmare. However, you will have a safer, roomier car with some protection against the elements. Also a faster more streamlined body.

Just make sure you run a Ford engine please.:cool:

[68GT500MAN]

The roadster build will help you understand the next build. Unless you plan on air conditioning in your coupe, from experience driving a coupe in 107 degree summer heat, it gets very HOT inside while stopped for any reason. Going faster than 45 was a big help as the air would flow through the car.
Doug

[skullandbones]

Great data. I plan on doing the same for heat (using Hushmat Ultra and 3/8 carpet mat). I think a lot of this is interchangeable but the roadster can diffuse the noise a little easier.

Hey Todd, I get what you are saying. It is hard to ignore. I think the coupe is pretty cool, especially, the flip frontend. But I have a roadster to finish first!

Thanks, WEK.