Forged LS1 Rx7 FC (Old school 350 to new school)

[FC3S Murray]

+1 for the single factory fan. My taurus fans pulls some serious air lol.

Look forward to this build!

[SBCFC07]

sick build bro, looking forward to doing pretty much the same thing you are, SBC-LSX, good luck and looking forward to the progress!

[caseymhawn]

UPDATE

Before i start, thanks for following me guys! It gives me motivation when I need it, aka I have been lazy these past few days haha. I finally got around to pulling out my front interior and some of the rear.  I hate dealing with old interior, I cracked a few pieces : (



Not going to lie, not looking forward to doing the wiring for the fans, ignition, etc.

Onnnnnnnn a good note, I got some bride seats to go  in it.  No they are not real : (
But they are very well made in my opinion

[caseymhawn]

Well…. Some bad news but can be good news as well. As I was working under my car I started to look at the frame rails, I started peeling off the undercoating and I found that there was a lot of rust on my frame rails. I found a hole the size of a softball: ( And I found a rust hole in the driver side floor board. So with me finding that I started doing some thinking. At first I was done to repair and fix all the underbody. Well one thought lead to another, I ended up using my parts car (1988 turbo II shell). I ended up going this route because the under body off this car looked amazing compared to the gunmetal rx7.
The positives to the new chassis
-Perfect underbody (no rust like old chassis)
-Untouched firewall (not hacked up like old chassis)
-No hole in the trunk for fuel cell
-turbo II rear end
-All new bushings( minus subframe and diff)
-Already has the manual pedal setup
I know I’m forgetting a few things. But that is the main jiff.


Old chassis
(not bad side)




New Chassis





The good thing about switching chassis at this point, I haven’t lost a lot of time or took any steps back. Both cars are in about the same state. With the new chassis I have raised it up and put it on a rotisserie to “restore the underbody” undercoating, rust prevention, redo brake/fuel lines, etc.
 
On a good note I got my trans ☺ I cleaned it up a lot . I wire brushed it, used simple green, and resprayed it with EastWood fresh cast aluminum paint .

[Sho Amo]

That old engine bay looked like it was going to take a bunch of work.

Good choice

[caseymhawn]

Update:
Well I have been nonstop for about a week. I have got the underbody all coated and rust sealer sprayed. To remove the factory undercoat, I used eastwoods undercoat remover. I didn’t have too much faith in it to work well, but surprising it did a good job. I sprayed that, then wire wheeled it the undercoat off.  After all the undercoating was removed I used Eastwoods rust converter. Once that was dry I used rustoleum professional grade undercoating. I was going to use POR-15 but I didn’t want to spend the money on it to do the whole underbody. After all the body was not bad at. I also sprayed rust sealer, which will do a very good of keeping rust away.
 I have also disassembled the rear subframe and some of the front. I have all Drop engineering for the rear bushing and I replaced the front a while back with energy bushings.  Im getting ready to sandblast the rear subframe in the next few days. I may end up coating that with por-15 since it was pretty rusty and seems to be a common part to get rust easily.


(don’t worry I’m paint the green front subframe here soon haha)

I have started to run my fuel line, I am using the corvette FPR/filter. I was going to use 3/8 hard line but I already had a bunch of -6 and -8 steel braided line left over. I end up using the -8 line, with the Russell Gm hardline fitting. I was going to mount the FPR/Filter infront of the sublink, I feel uncomfortable with it so close to it. I would also like for it to be accessible if I had to do something which is why I end up putting it close to the fuel tank. And from what I have read and heard the closer it is to the pump the better it is for fuel pressure. I may be wrong.

[caseymhawn]

New build thread coming soon different car , with a different set up . This one will be Continued later on .

[caseymhawn]