Full under body panel for 10% fuel efficiency gain. (about 20% aero drag reduction)

[jawbraeka]

i'll look into it. It seems to be working well so far as is, but I will revisit this if I run into any problems this summer. Thanks for the pics, they could also aid in my boat tail design.

best thing to do , hit up a wrecker and get them to cut the ass out of a festiva, or if you have a spare, cut it yourself.

then from there, mould the bottom with a heat sensitive plastic that will "mould" but turn rigid, then from there design the underbelly yourself.. it wouldn't be hard and TBH if it does all that it says it will, you may be looking at a potential client for one of these in the future.

also, must be plug'n'play with current chassis so irregardless of what happens with bodykits, it won't interfere with the overall operation of new underbelly.

can't wait to see the next chapter of this and overall version upgrades of this impressive upgrade..

the other thing i was thinking, was if it were "track" tested, then you'd be able to get really impressive results on overall speed and time trail data as well as fuel efficiency results and so forth... but only if you wanted to carry the project that far.

[mikeyjd]

best thing to do , hit up a wrecker and get them to cut the ass out of a festiva, or if you have a spare, cut it yourself.

then from there, mould the bottom with a heat sensitive plastic that will "mould" but turn rigid, then from there design the underbelly yourself.. it wouldn't be hard and TBH if it does all that it says it will, you may be looking at a potential client for one of these in the future.

also, must be plug'n'play with current chassis so irregardless of what happens with bodykits, it won't interfere with the overall operation of new underbelly.

can't wait to see the next chapter of this and overall version upgrades of this impressive upgrade..

the other thing i was thinking, was if it were "track" tested, then you'd be able to get really impressive results on overall speed and time trail data as well as fuel efficiency results and so forth... but only if you wanted to carry the project that far.

I hadn't thought of producing it for anyone else.. but it would be cool. The issue would come down to money, I think. It would improve aero on the track and help drastically with high end speeds. The issue would be coming up with the money to manufacture for such a small niche, and getting the niche to actually pony up like $300-400 (a wild guess) for something they don't need per say. It would be a fun project, but would likely be better suited for someone that already owned a tool&die shop or something of like nature.

[FestYboy]

2 things:

1) NACA ducts.... 'nuff said

2) have you noticed a reduction in cabin noise since the inclusion of the full pan?

[Festevil3]

Interesting ideas, hope it works out for you. Start a excel spreadsheet with data, I would be interested in your results

[jawbraeka]

2 things:

1) NACA ducts.... 'nuff said

2) have you noticed a reduction in cabin noise since the inclusion of the full pan?

i 2nd both these questions too..

if you do happen to get a prototype up and working properly, send us a template or design for the template and i'll get a local fabber to whip something up.. sounds very promising all the same.

[TominMO]

2 things:

1) NACA ducts.... 'nuff said

2) have you noticed a reduction in cabin noise since the inclusion of the full pan?

At John's suggestion, I blocked off most of my grill and all of my bumper openings, and put a small air dam under the bumper. The Festy definitely got quieter at hwy speeds. Working on this for my Aspire now too.

[mikeyjd]

At John's suggestion, I blocked off most of my grill and all of my bumper openings, and put a small air dam under the bumper. The Festy definitely got quieter at hwy speeds. Working on this for my Aspire now too.

Definitely way quieter at highway speeds. Ill look into naca ducts.

[Movin]

I must have missed something..( not unusual for me ) In racing I understand the need for ducting air to prevent overheating, but for this project if heat is some where is it not the first priority to eliminate the lost energy creating the excess heat?

[scitzz]

2 things:

1) NACA ducts.... 'nuff said

2) have you noticed a reduction in cabin noise since the inclusion of the full pan?

Pardon my density, Naca ducts to cool, the Cat?

[TominMO]

^^ Google it. Wikipedia.

[scitzz]

^^ Google it. Wikipedia.

Well, I know that Naca ducts are used for cooling, and I thought usually for cooling brakes.

[mikeyjd]

I must have missed something..( not unusual for me ) In racing I understand the need for ducting air to prevent overheating, but for this project if heat is some where is it not the first priority to eliminate the lost energy creating the excess heat?

For my purposes the flow reduction keeps the engine at nice operating temps as opposed to running cool. With standard air flow the engine doesn't stay at optimal operating temps with the way I drive.

[Movin]

The ideal condition for mileage from a combustion engine would be a cool exhaust
and no cooling system necessary.

[sketchman]

^Ol Smoke nearly did that.

Use the heat, don't throw it away.

[FestYboy]

nearly!?! no, man, Smokey DID it, and to a homebrew turbo 2.5 Fiero (which still runs today) no less.... i'd have to pull an old hardrive to get you all the details, as i havn't seen them all from internet searches.