Ok lets get right to it
95R package (46k miles) that had extensive R&D from new. Had a dozen+ different turbo / nitrous / water injection & suspension setups. Back in 04' it made 576/505 whp/trq on 93 pump with water/meth and in 08' a switch to e-85 probably cracked 600..but never verified.
Drive line was removed in 2014 and parted out. The only components that were retained was the AST coilovers , tubular suspension, front big brake kit and the splined sway bars.
Here are pics a year or so before tear down











The NC Miata above also has an LS3/t56

 

 

Here is the chassis after tear down. If you look closely you can see we already cut the frame support by the firewall. BTW it is NOT necessary to cut away as much as is suggested . Later in the build we actually welded smaller supports back in place.

 

 

A close up shot of the clean cut to the transmission tunnel

 

Folding the metal for a clean fit before seam welding.

 

Nice metal work.

 

^^^ thanx..some close ups of the tunnel after welding

 

 

also the cowl support welded in place

 

Ohhh pretty welds! Thanks for the update!!

 

haven't updated in a while so here are some more pix
We run a 1.75" .083 chromoly tube completely thru the frame " double shear" for support and chassis rigidity. Also we do NOT cut the center support for the LS7 air intake before this is welded into place.

 

 

 

 

Installed the mock-up engine and string plumbed to see how square the engine & magnum trans sit in relationship to the chassis frame rails and rockers

 

 

 

Test fit of the CTS-V and 235 r888

 

 

Rear knuckle upgrade

 

 

Tranzilla 6-speed with KooKs long tubes

 

This is tight with the splined sway bar but I think I can make the work

 

Kooks is making swap headers for these now? 1 3/4" or 1 7/8"?