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Bridgeported 12a - Nikki

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Old May 6, 2025 | 01:49 AM
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ChoppedFB's Avatar
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Bridgeported 12a - Nikki

Hey yall,

Starting a thread for my 85 rx7 finally, been lurking for a few years. didn't have the bandwith for the whole project while in school, so now I'm diving head first after a lot of prep.

I picked up my 7 in philly when I was in highschool, and over the years did a lot of maintainence to keep it on the road, but was able to work with the stock, unopened 170k mile 12a (to my knowledge) I have been prepping a big swap for a few months, so here's a braindump of where I'm at so far, would love any suggestions or questions yall might have. Ill post some pictures of when I picked it up vs now, and of the goodies that I have on standby.

The plan: 12a, Halfbridgeported
-I snagged a another 12a last fall for cheap that was sitting in a car in upstate NY, found it wasnt the worst- suprisingly- in teardown, has some small chrome flaking, but will definitely do the job.
- I had goopy machine a half-bridgeport, and got all the seals I needed to re-stack -all rotor seals, coolant etc, gonna reuse oil rings
- Cleaned and painted the housings and irons, I think the last thing I need to do before stacking is port out the exhaust a little with a dremel
oil cooler reroute
- need to snag an FC oil cooler

Prepped Nikki- following a "Fat nikki" thread I found, some jetting guides, sterling posts ETC.
- I tore-down the same NIkki ive had on the original car the whole time tonight - should get the works soon. Already is mostly rats nest deleted and has the primaries and secondaries tied mechanically.
- Will probably throw a carter or holley fuel pump with a reg on here, need to purchase still


2 MSD 6A boxes


RB headers, RB muffler
- need to fab exhaust

While Im in there the whole engine bay will get a cleanup and repaint.

Replacing the gas tank because it leaks over 3/4 full, have a good one, just need to clean and install

More plans to come once the pissmissle is brapping again
- paint, suspension, sound system overhaul


fresh one almost ready to go
fresh one almost ready to go

recently
recently
early on
early on
Blew upper coolant hose on the drive home the day i got it <img src=" class="post_inline_image" data-size="1500x2000" data-src="https://cimg2.ibsrv.net/gimg/www.rx7club.com-vbulletin/1500x2000/65126840113_95e5c71a_19c8_4536_b704_b480ebcc03a9_fullsizerender_786933e463dc5bf7aef1f16e3740760d022bf805.jpg" loading="lazy" />
Blew upper coolant hose on the drive home the day i got it
goopy port - do i need to extend this up or down? It looks a little short to me from what ive seen
goopy port - do i need to extend this up or down? It looks a little short to me from what ive seen

Last edited by ChoppedFB; May 6, 2025 at 01:52 AM.
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Old May 6, 2025 | 09:28 AM
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GtiKyle's Avatar
Uncle Rico
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Cool project, looking forward to the updates.
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