Build Threads Building a motor? Post the progress here.

1984 RX-7 Race Car with BP! (almost a Miata)

Thread Tools
 
Search this Thread
 
Old 07-17-2012, 02:59 PM
  #81  
Senior Member
Thread Starter
iTrader: (5)
 
bcrx7's Avatar
 
Join Date: Jul 2005
Posts: 697
Total Cats: 53
Default

Wow, noticed I have posted anything for a while! The rear-end is done! Car is back on the ground. The cage was all done as well as the rear bumper. Also made the mounting location for the rear wing. Cut the moon-roof out and put a solid roof on. Now the small fabrication starts like the rear cooler. Next on the list is mounting the wilwood pedal and brake/clutch master cylinder assembly.

Here are some of the pictures:













Attached Thumbnails 1984 RX-7 Race Car with BP! (almost a Miata)-img_0522.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0568.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0575.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0588.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0593.jpg  

1984 RX-7 Race Car with BP! (almost a Miata)-img_0629.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0634.jpg  
bcrx7 is offline  
Old 07-18-2012, 02:54 AM
  #82  
Elite Member
iTrader: (24)
 
viperormiata's Avatar
 
Join Date: Aug 2008
Location: Key West
Posts: 6,110
Total Cats: 283
Default

Damn, what a ------- beast!
viperormiata is offline  
Old 07-18-2012, 10:53 AM
  #83  
Elite Member
iTrader: (13)
 
Fireindc's Avatar
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 6,603
Total Cats: 564
Default



FML if you already said this, but what's the weight?
Attached Thumbnails 1984 RX-7 Race Car with BP! (almost a Miata)-3732768%252b_3af82752f6304ffdda12fa02fd01e629.jpg  
Fireindc is offline  
Old 07-18-2012, 11:04 AM
  #84  
Senior Member
Thread Starter
iTrader: (5)
 
bcrx7's Avatar
 
Join Date: Jul 2005
Posts: 697
Total Cats: 53
Default

with driver (~200lbs) and full tank of gas (22gal) it is going to be ~1920lbs.
bcrx7 is offline  
Old 07-18-2012, 03:55 PM
  #85  
Elite Member
iTrader: (13)
 
Fireindc's Avatar
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 6,603
Total Cats: 564
Default

Amazing. What kind of rear suspension is that? live axle? Why not IRS?
Fireindc is offline  
Old 07-18-2012, 04:07 PM
  #86  
Senior Member
Thread Starter
iTrader: (5)
 
bcrx7's Avatar
 
Join Date: Jul 2005
Posts: 697
Total Cats: 53
Default

Yes it is live axle. It is an inverted triangulated four link. The IRS setup gets really complicated and the option for higher power/torque rating is limited. The gains are pretty minimal depending on the track length and layout.

Last edited by bcrx7; 07-18-2012 at 06:51 PM.
bcrx7 is offline  
Old 07-18-2012, 06:51 PM
  #87  
Elite Member
iTrader: (13)
 
Fireindc's Avatar
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 6,603
Total Cats: 564
Default

Ahh yes, makes sense. Definitely not hating here, amazing build.. subscribed.
Fireindc is offline  
Old 07-18-2012, 07:21 PM
  #88  
Elite Member
iTrader: (2)
 
Faeflora's Avatar
 
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,682
Total Cats: 130
Default




Wow way to make me feel pathetic with your pro level shiz.

Seriously. How did you learn how to do all this shtuff. Please do share so we can have dreams of leveling up to Grand Wizard too.
Attached Thumbnails 1984 RX-7 Race Car with BP! (almost a Miata)-tumblr_m71vg2dckr1qa48z1.gif  
Faeflora is offline  
Old 07-19-2012, 12:50 PM
  #89  
Senior Member
Thread Starter
iTrader: (5)
 
bcrx7's Avatar
 
Join Date: Jul 2005
Posts: 697
Total Cats: 53
Default

Haha pro... far from it. I try!

10 years of building race cars with friends helps!
bcrx7 is offline  
Old 07-29-2012, 11:15 AM
  #90  
Elite Member
iTrader: (3)
 
concealer404's Avatar
 
Join Date: Aug 2011
Posts: 10,917
Total Cats: 2,201
Default

FUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU

o_O

This is ridiculous and awesome! MOAR!!!
concealer404 is offline  
Old 09-06-2012, 10:55 AM
  #91  
Senior Member
Thread Starter
iTrader: (5)
 
bcrx7's Avatar
 
Join Date: Jul 2005
Posts: 697
Total Cats: 53
Default

Well I had my Ironman race a couple of weeks ago and didn't do much work on the car before that. However now that the race season is over, I can spend some quality time with the car before my training gets going again.

I finished the valve cover as I had to drill and tap for the vents and also enlarge the plug holes for the COP coils.

I started cutting the firewall last night for the exhaust and that will be starting today!





Attached Thumbnails 1984 RX-7 Race Car with BP! (almost a Miata)-img_0735.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0742.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0743.jpg  
bcrx7 is offline  
Old 09-06-2012, 01:48 PM
  #92  
Senior Member
Thread Starter
iTrader: (5)
 
bcrx7's Avatar
 
Join Date: Jul 2005
Posts: 697
Total Cats: 53
Default

And the start of exhaust system: first thing is cut some holes to fit the 3.5" exhaust that will come out the passenger side in front of the rear wheel!

Pretty minimal muffling just so I don't get annoyed driving it on the track.





Attached Thumbnails 1984 RX-7 Race Car with BP! (almost a Miata)-img_0744.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0745.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0746.jpg  
bcrx7 is offline  
Old 09-06-2012, 03:43 PM
  #93  
Moderator
iTrader: (12)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 20,651
Total Cats: 3,011
Default

So much awesome. Comparing what you are doing to what I'm doing is the difference between the ceiling of the Sistine Chapel and fingerpainting a turkey by tracing the shape of your hand. I love it.
sixshooter is offline  
Old 09-10-2012, 02:34 AM
  #94  
Senior Member
Thread Starter
iTrader: (5)
 
bcrx7's Avatar
 
Join Date: Jul 2005
Posts: 697
Total Cats: 53
Default

Thanks! I try!
bcrx7 is offline  
Old 09-10-2012, 02:06 PM
  #95  
Senior Member
iTrader: (3)
 
thasac's Avatar
 
Join Date: May 2005
Location: Mass.
Posts: 811
Total Cats: 43
Default

The packaging/housing on those COPs is soooo much better than Toyota's .... are they AEM?

Also, yet another iron man competitor which makes me feel like total sh*t in terms of accomplishments. Please tell me you don't also work 60 hour weeks and find time to leisurely drink beer.

-Zach
thasac is offline  
Old 09-10-2012, 02:09 PM
  #96  
Senior Member
Thread Starter
iTrader: (5)
 
bcrx7's Avatar
 
Join Date: Jul 2005
Posts: 697
Total Cats: 53
Default

Nope, they are WeaponX purchased from Boundary Engineering. I was tired of dealing with the Toyota Coils as I didn't have much luck with them.

I don't work 60 hours per week, around 40! Don't drink too much beer anymore as I am lightweight now!
bcrx7 is offline  
Old 09-10-2012, 03:00 PM
  #97  
Elite Member
iTrader: (10)
 
soviet's Avatar
 
Join Date: Jan 2010
Location: VA
Posts: 3,493
Total Cats: 268
Default

I feel like those valve cover AN fittings are awfully small.
soviet is offline  
Old 09-10-2012, 04:02 PM
  #98  
Senior Member
Thread Starter
iTrader: (5)
 
bcrx7's Avatar
 
Join Date: Jul 2005
Posts: 697
Total Cats: 53
Default

-10 on the "exhaust" side which will connected to an exhaust scavenge. -4 on the filtered side.
bcrx7 is offline  
Old 09-12-2012, 12:37 PM
  #99  
Senior Member
Thread Starter
iTrader: (5)
 
bcrx7's Avatar
 
Join Date: Jul 2005
Posts: 697
Total Cats: 53
Default

Started on the manifold this weekend. First is the collector. It was fun making it from scratch!

Used tape for the back-purging first and switched to making some aluminum caps as welding while there was a fire was not as much fun as I thought it would be!









Attached Thumbnails 1984 RX-7 Race Car with BP! (almost a Miata)-img_0749.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0750.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0751.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0752.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0753.jpg  

bcrx7 is offline  
Old 09-24-2012, 01:24 AM
  #100  
Senior Member
Thread Starter
iTrader: (5)
 
bcrx7's Avatar
 
Join Date: Jul 2005
Posts: 697
Total Cats: 53
Default

I did some sheet metal work to make the wing mount fit the chassis better.

Also started to figure out the muffler location and where the exhaust tubing would run outside the cage. Ordered all the piping, so waiting for it to show up.





















Attached Thumbnails 1984 RX-7 Race Car with BP! (almost a Miata)-img_0775.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0776.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0777.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0778.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0779.jpg  

1984 RX-7 Race Car with BP! (almost a Miata)-img_0780.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0781.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0782.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0783.jpg   1984 RX-7 Race Car with BP! (almost a Miata)-img_0784.jpg  

1984 RX-7 Race Car with BP! (almost a Miata)-img_0785.jpg  
bcrx7 is offline  


Quick Reply: 1984 RX-7 Race Car with BP! (almost a Miata)



All times are GMT -4. The time now is 06:09 PM.