DIY front splitter. - Page 7 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 02-03-2010, 09:47 AM   #121
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Make sure to use something that will break itself before it goes through the intercooler or radiator.
hustler is offline   Reply With Quote
Old 02-03-2010, 09:54 AM   #122
Elite Member
iTrader: (8)
 
Join Date: Dec 2008
Location: Kingston, Ontario
Posts: 2,791
Total Cats: 71
Default

orion, what did you make that mount bolt to?

also, is there a mount on the back too, or does it just have the one mount total?

having a hard time seeing how that alone would be enough, but im sure in person it would be different
shlammed is offline   Reply With Quote
Old 02-07-2010, 01:13 AM   #123
Supporting Vendor
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,323
Total Cats: 1,341
Default

corrugated plastic



Ok, so I'm bored.
emilio700 is offline   Reply With Quote
Old 02-07-2010, 01:24 AM   #124
Supporting Vendor
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,323
Total Cats: 1,341
Default

We have always used cheap form grade ABS in various thicknesses for stuff like this. For William's car we used .060 & .125 to make the dive planes, block off the rad opening in the bumper. Bent and riveted together. His splitter weighs about 4 lbs and worked well enough to set another absolute Miata lap record last Sunday. Because it worked so well, it was getting bent down into the pavement under aero load and abrading through. So we're going to try some replaceable HDPE rub strips in a few spots.

Picture of final version we ran last Sunday

Quote:
Originally Posted by hustler View Post
Make sure to use something that will break itself before it goes through the intercooler or radiator.
+1

Learned that the hard way.
emilio700 is offline   Reply With Quote
Old 02-07-2010, 12:52 PM   #125
Elite Member
iTrader: (4)
 
Join Date: Sep 2006
Location: Charlotte, NC
Posts: 3,051
Total Cats: 7
Default

Quote:
Originally Posted by emilio700 View Post
God that car is so disgusting, I think I'm in love.

FUNCTION >> FORM
Efini~FC3S is offline   Reply With Quote
Old 02-09-2010, 06:31 PM   #126
Elite Member
Thread Starter
 
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,479
Total Cats: 116
Default

Quote:
Originally Posted by emilio700 View Post
We have always used cheap form grade ABS in various thicknesses for stuff like this. For William's car we used .060 & .125 to make the dive planes, block off the rad opening in the bumper. Bent and riveted together. His splitter weighs about 4 lbs and worked well enough to set another absolute Miata lap record last Sunday. Because it worked so well, it was getting bent down into the pavement under aero load and abrading through. So we're going to try some replaceable HDPE rub strips in a few spots.

Picture of final version we ran last Sunday


+1

Learned that the hard way.
Looks like in the picture youíre having some issues with the corrugated plastic sagging down due to aero loads. It is nice and light though I think my fiberglass/plywood splitter ended up weighing 9 lbs if I remember right.

Any tips on fastening methods or hardware to use for mounting the canards? Iíve never seen any of these up close to get ideas. Most pictures I look at it appears like they are held to the bumper by majic.

Bob
bbundy is offline   Reply With Quote
Old 02-09-2010, 06:37 PM   #127
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

A little red paint would go a long way on William's car.
hustler is offline   Reply With Quote
Old 02-09-2010, 06:40 PM   #128
Junior Member
iTrader: (1)
 
Join Date: Aug 2007
Posts: 387
Total Cats: 10
Default

Quote:
Originally Posted by bbundy View Post
Looks like in the picture youíre having some issues with the corrugated plastic sagging down due to aero loads.
Bob
nothing zip tie can't fix.
bellwilliam is offline   Reply With Quote
Old 02-10-2010, 02:35 AM   #129
Supporting Vendor
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,323
Total Cats: 1,341
Default

Quote:
Originally Posted by bbundy View Post
Looks like in the picture you’re having some issues with the corrugated plastic sagging down due to aero loads. It is nice and light though I think my fiberglass/plywood splitter ended up weighing 9 lbs if I remember right.

Any tips on fastening methods or hardware to use for mounting the canards? I’ve never seen any of these up close to get ideas. Most pictures I look at it appears like they are held to the bumper by majic.

Bob
I didn't do the canards. They're not quite the right shape, screwed on with sheet metal screws. They need to be curved IMO. The dive planes and side plates on them were made at my shop. We used the thin ABS bent into shape an held together with aluminum rivets. The dive planes were riveted to the splitter for two reasons: To make damage repair a simple swap and also to make trailer loading easier.

At the trailing edge of the splitter it's held in with a QR pin sourced from Home Depot. The center of the splitter has a tongue that fits into a square hole cut into the under tray. The four stays also have QR's. So the whole thing pops off without tools and weighs nothing. It's also set up to simply fold away and get driven over in the event we dip a wheel. Nothing to go into the radiator, oil cooler, brake ducts or Rotrex cooler.

Once we get a set up that is a bit stiffer and more durable, we'll make a spare and hang it in the trailer. Dip a wheel now and our day is over so we need that spare.

Quote:
Originally Posted by hustler View Post
A little red paint would go a long way on William's car.
That and a few more zip ties.
emilio700 is offline   Reply With Quote
Old 02-10-2010, 02:59 AM   #130
Elite Member
Thread Starter
 
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,479
Total Cats: 116
Default

Quote:
Originally Posted by emilio700 View Post
I didn't do the canards. They're not quite the right shape, screwed on with sheet metal screws. They need to be curved IMO. The dive planes and side plates on them were made at my shop. We used the thin ABS bent into shape an held together with aluminum rivets. The dive planes were riveted to the splitter for two reasons: To make damage repair a simple swap and also to make trailer loading easier.

At the trailing edge of the splitter it's held in with a QR pin sourced from Home Depot. The center of the splitter has a tongue that fits into a square hole cut into the under tray. The four stays also have QR's. So the whole thing pops off without tools and weighs nothing. It's also set up to simply fold away and get driven over in the event we dip a wheel. Nothing to go into the radiator, oil cooler, brake ducts or Rotrex cooler.

Once we get a set up that is a bit stiffer and more durable, we'll make a spare and hang it in the trailer. Dip a wheel now and our day is over so we need that spare.


That and a few more zip ties.


Yea I think my splitter is fastened too well. it is likely to do some damage if I punch some curbing square on with it wont rip off that easy. Some directions I found showed the use of short wood screws that would pull out of the wood on a hard impact.

I rigged up a series of 2X6 boards to get it transitioned up on my trailer without needing to pull the splitter off. The splitter is about 3.5Ē off the ground so it needs a very shallow ramp angle to load it.

Bob
bbundy is offline   Reply With Quote
Old 02-10-2010, 03:30 AM   #131
Elite Member
iTrader: (7)
 
Join Date: Jan 2007
Location: Renton Washington
Posts: 1,742
Total Cats: 3
Default

This thread kicks ***.
SKMetalworks is offline   Reply With Quote
Old 02-10-2010, 03:57 AM   #132
Junior Member
iTrader: (2)
 
Join Date: Feb 2009
Location: 94401
Posts: 240
Total Cats: -2
Default

can anyone post any pics of the way its mounted underneth the car please and well the front to. thank you
proughj is offline   Reply With Quote
Old 02-10-2010, 11:28 AM   #133
Junior Member
iTrader: (2)
 
Join Date: Oct 2007
Location: Near buffalo
Posts: 140
Total Cats: 0
Default

Quote:
Originally Posted by emilio700 View Post
corrugated plastic



Ok, so I'm bored.
Emillio is that actually what you used for a splitter? Did you use multiple plys? I would think using a few sheets glued together with the 'grain' going different ways would work well.
mikewolf is offline   Reply With Quote
Old 02-10-2010, 01:11 PM   #134
Junior Member
iTrader: (1)
 
Join Date: Aug 2007
Posts: 387
Total Cats: 10
Default

I m the one that uses that corrugate plastic. It is strong and light as is. I use a 5/16" piece. Get them locally from a place that builds shipping containers for military.
it also cuts very easily.

Last edited by bellwilliam; 02-10-2010 at 03:17 PM.
bellwilliam is offline   Reply With Quote
Old 02-10-2010, 02:38 PM   #135
Junior Member
iTrader: (2)
 
Join Date: Oct 2007
Location: Near buffalo
Posts: 140
Total Cats: 0
Default

Thanks for the reply. We hardly even have a military here in Canada so that' not really an option. Luckily I have a bunch of left over election signs from when my mom ran for city counsellor that are made of similar material.
mikewolf is offline   Reply With Quote
Old 02-10-2010, 03:42 PM   #136
Elite Member
iTrader: (13)
 
Join Date: Dec 2009
Location: Fraser Valley, British Columbia
Posts: 2,502
Total Cats: 13
Default

You "THINK" we don't have an army, you just don't see them because they aren't in the news everyday like *cough* some other armed forces.
falcon is offline   Reply With Quote
Old 02-10-2010, 04:43 PM   #137
Senior Member
iTrader: (1)
 
Join Date: May 2008
Location: south texas
Posts: 1,419
Total Cats: 9
Default

i use a thin sheet of aluminum held on at four points. at vir in the early morning session with a damp track i ran straight off and over a curb under braking. i thought for sure the splitter was ripped off. nope, just bent. it would scrape on hard right turns (left side was where the most damage was)
so i came in fearing it would get stuck under a tire and send me out of control. well when i pulled into the hot pit lane i saw that it was just bent under. tried my hardest to just rip it off including jumping up and down on it. didn't move an inch. so, i went and unbolted it in about 2mins. crazy part is, if you saw how it's held on you would never think it would survive the impact. as a matter of fact, it's still there holding my new splitter on. point is, what kind of material were you guys using that broke and ripped into your radiator,oil cooler or whatever?

here's how mines held on:

rear: factory bolt for bumper/support rod

Name:  splitterdiffuserpics023.jpg
Views: 121
Size:  50.9 KB

front: L brakets bolt to factory threaded hole for bumper support, which hold the top of allthread, the bottom hangs down and bolts to splitter.

Name:  splitterdiffuserpics010.jpg
Views: 99
Size:  39.3 KB

Name:  splitterdiffuserpics009.jpg
Views: 65
Size:  34.4 KB

that's it, simple and it works.
spoolin2bars is offline   Reply With Quote
Old 02-11-2010, 02:12 AM   #138
Supporting Vendor
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,323
Total Cats: 1,341
Default

Quote:
Originally Posted by mikewolf View Post
Emillio is that actually what you used for a splitter? Did you use multiple plys? I would think using a few sheets glued together with the 'grain' going different ways would work well.
I would answer your question but you quoted a pic so, no soup for you.
emilio700 is offline   Reply With Quote
Old 02-11-2010, 04:22 PM   #139
Senior Member
iTrader: (1)
 
Join Date: Dec 2008
Location: Manassas, Virginia
Posts: 1,247
Total Cats: 57
Default

Ha ha ha
mx5autoxer is offline   Reply With Quote
Old 03-22-2010, 03:13 PM   #140
Elite Member
iTrader: (15)
 
Join Date: Dec 2007
Location: San Antonio, Texas
Posts: 4,889
Total Cats: 28
Default

Thread resurrection

So Bob did you get a before-after idea on how much stiffness the fiberglass layup added to your splitter? My 1/2" plywood splitter is mostly complete and I am debating whether to bother glassing it or not. Right now it is not stiff enough without adding the usual tie rods to brace it to the chassis. I am also considering a dual-purpose stiffening/air-dam structure which should work but I have to be careful with this approach; it needs to self-destruct without taking the nose with it.
ZX-Tex is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 Today 09:00 PM
LucaCarMods's Boosted Dutch Miata Build! LucaCarMods Build Threads 11 02-14-2016 07:13 AM
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
In need of base map for stock 1997 brandonbkd MEGAsquirt 0 09-29-2015 12:52 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:57 PM.