[firefish]

This is maybe not something to actually make the 968 faster but...

I have thought about lowering the temp under the hood, among other things. Someone, flash I believe, mentioned that the 944 (951?) had a bellypan the covered the entire underside of the engine. So I have been thinking about doing the same thing outta sheet aluminum.

My idea is to fab a pan that goes from the nose (I'll attach it to the same screws that I now use to attach my splitter) to the front axle, making it as tight a fit as I can. This should, in accordance to what was said in the earlier thread that I cannot seem to find, aid in pulling air, entering at the nose, through the engine bay exiting behind the front axle and firewall. Would this be a design similar to the 944/951 piece?


Thx

Partial Post: Please Login or Register to read the full post.

[flash]

there are already pieces that get you all the way to behind the rear of the oil pan

Partial Post: Please Login or Register to read the full post.

[Joel968]

How about like this. Fab'ed this one up to push funnel air through the grill and across the engine. Mounted between splitter and bodywork. The car does run cooler!



Sorry no pic' wouldnt upload.

Anybody able to give me a quick heads on why it wouldnt upload?

Partial Post: Please Login or Register to read the full post.

[firefish]

So an ok design starts at the splitter and ends after the oilpan?

Partial Post: Please Login or Register to read the full post.

[flash]

the early cars came stock with all of it - the later ones only have the 2 pieces - having installed the metal 3rd tray, and already having both of the other stock ones, it seems to work nicely and improved cooling and feels like aerodynamics too at high speed

i have been working on completing the underside of the car, and have prototype pieces, but got sidetracked from the project

Partial Post: Please Login or Register to read the full post.

[Joel968]

It somewhat rare to find a car that still has all of the under belly shields. This is what I fab'ed up to replace my bat wing.

   

Partial Post: Please Login or Register to read the full post.

[rxter]

Anything to reduce heat. My second pan was missing on purchase, and my batwing is pretty beat up. A replacement would be welcome.

Partial Post: Please Login or Register to read the full post.

[flash]

not really rare, but yes, many of them are missing the parts

that piece is the first one (the front apron) - it actually has ducts molded into it

then there is a center plastic one that goes about halfway down the oil pan - then there is a third metal one that runs behind that - these are shown here:

   

Partial Post: Please Login or Register to read the full post.

[Joel968]

I believe that the aft metal pan was on early cars only.

I have only seen 1 car with that intact.

Partial Post: Please Login or Register to read the full post.

[Darryl]

Most people leave off the third metal pan to make oil changes easier. My 92 cab has the third pan in tact and I haven't had the 93 coupe in the air yet...lift has been occupied. It'd be great if we could come up with an integrated piece to take the place of the three separate ones.

Partial Post: Please Login or Register to read the full post.

[flash]

yes, it was deleted on later cars - i bought one so as to improve the underbody aerodynamics and promote cooling - it worked - my point was that there was no need to design something that already existed and works well

i know quite a few people remove it for that reason, but it seems dumb to me to sacrifice better running all the time just to make oil changes easier once in a while - how many oil changes does one do anyway?

Partial Post: Please Login or Register to read the full post.

[Joel968]

I would agree, but at what price? My design cost me less than 100 bucks, I doubt that you could purchase that piece for that price, if it is still in production.

My car does run cooler.... It would be interesting to see what the factory did to help the Turbo cars run cooler, in regards to the underbelly shields.

Post seems odd from a guy who designs aftermarket products for our 968's.

Cheers,
Joel

Partial Post: Please Login or Register to read the full post.

[flash]

not at all - you can pick these up from a wrecker for very little - i only design stuff when there isn't something better already out there

sure you can make something close, but the rigidity provided by the ridges and bends will be tough to duplicate - flat pieces won't work well - there aren't enough places to attach them to keep the in place

knock yourself out, but i had the choice too - i found i could not duplicate, let alone improve on those pieces for less

the rest of the car is a different story - there isn't anything to buy, so i don't have a choice but to make something

Partial Post: Please Login or Register to read the full post.

[Fox944]

POrsche also made Kevlar belly pans for the 968 Turbo RS cars. The Turbo RS front splitter had a kevlar belly pan attached to it.

Partial Post: Please Login or Register to read the full post.

[flash]

lol - yeah - that would work on a race car - the ability to mold in contours would really help - a bit on the pricey side though, and i'm not set up for that kind of work - i'll have to stick to lower tech stuff

i have been contemplating fiberglass for the rear section though - would be a lot easier to make the contours (and there are a lot of them) - carve up some styrofoam blocks, add some expanding foam and carve again - bingo! - may have to do it in sections for installation reasons though

Partial Post: Please Login or Register to read the full post.

[Lim Yong]

Rear section being? I have all three pieces on the 92 (gone) and 93. The most important piece is the bat wing for cooling.
Right now i have the batwing off as I am working on the scrapped up splitter and the car does run hotter by the water
temp gauge with the rear two pieces.

Beside the exhaust cover piece Flash designed @ Pete's? I wanted one until I discover I have a Tip so there is already one there. Anyone have a tip and put one on anyway? if so, did it help? Any thoughts on thermotec.com exhaust wraps? to reduce underhood temps as mention by the OP.
Thanks

Partial Post: Please Login or Register to read the full post.

[flash]

the rear section being the tail end of the car, aft of the floor pans, and all the way to the rear bumper cover

my car ran noticeably COOLER with all 3 pieces up front than with one or 2 - this is not based on water temp gauge as much as temp gauges - the only time the water temp gauge showed any change was with the rear 2 pieces removed, and then it was slight - the oil temp gauge shows a measurable increase with any of the pieces removed

i am using thermal wrap on the header - definitely cools things down - however, installation is critical - you cannot overlap the wrap more than 1/4" or you will cause the pipes to crack

Partial Post: Please Login or Register to read the full post.

[968Oz]

<!--quoteo(post=79063:date=Aug 28 2009, 01:15 PM:name=flash)-->QUOTE (flash @ Aug 28 2009, 01:15 PM) <{POST_SNAPBACK}><!--quotec-->not really rare, but yes, many of them are missing the parts

that piece is the first one (the front apron) - it actually has ducts molded into it

then there is a center plastic one that goes about halfway down the oil pan - then there is a third metal one that runs behind that - these are shown here:

<!--QuoteEnd--><!--QuoteEEnd-->

These pieces are still available form Porsche. I just had my front apron and center plastic piece replaced as part of an insurance claim resulting from a collision with a rabbit!

Partial Post: Please Login or Register to read the full post.

[MikeVT]

LoL .. I hear ya on the Rabbit

I had to replace mine after hitting a ground hog. Also bent my belly pan just behind the rocker panel about midway under the cab.

Partial Post: Please Login or Register to read the full post.

[PorscheDude]

I have a few pics of the motorsport splitter intigrated with the bellpan on my
other CPU. I'll try to post it.

Partial Post: Please Login or Register to read the full post.