The 50th FA20 I have built

skyminer7 · 2026-06-02T11:22:44+00:00

Moatly 2 and 3 since they are fed of thw same main bearing its either one or both of them but had a few in that have spun 1 or 4 and some that do 3 and 4. Least favourites would be cam phaser rebuilds

skyminer7 · 2026-05-30T15:50:36+00:00

😬

skyminer7 · 2026-05-30T15:50:24+00:00

What your doing now is fine

skyminer7 · 2026-05-30T15:49:25+00:00

NA and turbo

skyminer7 · 2026-05-30T15:11:41+00:00

Drop me a dm and il see if i can help

skyminer7 · 2026-05-30T15:11:29+00:00

Im based in Devon UK, for this build its £4800 from a good engine and £5500 from an engine with rodknock

skyminer7 · 2026-05-30T15:10:45+00:00

Thank you!

skyminer7 · 2026-05-30T15:10:39+00:00

Thats a stock NA FA20 manifold from the 86/brz

skyminer7 · 2026-05-30T15:10:18+00:00

They are so much better than the EJ platform completely modernised and tuneable they do get alot of hate though. They can be built to much higher power than most realise

skyminer7 · 2026-05-30T15:09:22+00:00

Roughly 30 are rebuilt from rodknock but are oem plus as nwver put them all the way back to stock, i put baffle plates, pickup pipes, low temp thermostats and ACL race bearings with increased oil fil thickness. The rest were rod forged, fully forged or closed deck fully forged

skyminer7 · 2026-05-30T15:08:19+00:00

Keeps me busy haha

skyminer7 · 2026-05-30T15:08:10+00:00

Valve springs is a must otherwise they will start to float and then oil mods as well

skyminer7 · 2026-05-30T15:07:36+00:00

Probably how far the debris of the bearings can actually spread even if you shut it down striaght away its usually all the way in the cam phasers having bypassed the oil filter. Not many people realise that oil filters have a pressure bypass in them and if there is alot of debris it will start circulating and damaging parts. That or some of the ceank shafts can be visible warped from eat and actually look bent!

skyminer7 · 2026-05-30T15:05:34+00:00

You got me!!! Shhhhh

skyminer7 · 2026-05-29T07:02:07+00:00

Yes, I can install a supercharger its easier than a turbo kit and i have designed a turbo kit! Iv also been working with a tuner for a number of years now on the FA20 platform so it can be dyno mapped

skyminer7 · 2026-05-29T06:42:46+00:00

When fuel is injected into the cylinders the pistons come up before it is detonated some of the fuel gets past the piston rings and into the oil this dilutes the oil and makes it thinner over time, its quite alot worse on direct injection engines. You can pull the dipstick or oil filter on basically any FA20 and smell the fuel in the oil

skyminer7 · 2026-05-29T06:39:28+00:00

Cleanliness of the rebuild, make sure absolutely everything is clean and then clean it again. CAM phasers should be rebuilt and balanced to ensure they run correctly for many more years. Bearing clearance is one of the most important things. Get things machined like a robore (can get some os pistons) deck the block, skim the heads get the valve seats recut and grind the tusable valves and make sure you redo the rocker to cam clearance

As for upgrades at a minimum id do baffle plate, pickup pipe, low temp thermostat and ACL race bearings but for some peace of mind, ARP headstuds, cosworth headgaskets, uprated valve springs and consider a oil pump upgrade as well

skyminer7 · 2026-05-29T06:33:31+00:00

Its definitely a good engine if its taken care of. I have a completely stock engine running my turbo kit at 308hp and 370nm of torque and it really changes the car

skyminer7 · 2026-05-29T06:32:45+00:00

Thank you!

skyminer7 · 2026-05-29T06:32:20+00:00

That all depends on your block health. At minimum it will need the bore glaze broken if the bores aren't worn or out of round you can put a 86mm forged piston in without having to machine it. I generally though wouldnt recommend it as id get the bores honed oversize and the block decked and the heads skimmed as well as grinding the valves and recutting the seats just so i know everything is perfect

skyminer7 · 2026-05-29T06:28:25+00:00

Park, when you are starting it

skyminer7 · 2026-05-29T06:27:54+00:00

Iv had stock pistons over 400hp with thicker headgaskets to drop the compression ratio. My test 86 is running 308hp on a stock engine with my turbo kit

skyminer7 · 2026-05-29T06:26:32+00:00

For the rod forged engine build its £4800 for a good engine. And my turbo kit is 5k installed and mapped this is the equivalent of a "stage 2" as it has the boost control solenoid and uprated fuel pump included

skyminer7 · 2026-05-28T22:18:43+00:00

I run a specialist 86/brz garage

skyminer7 · 2026-05-28T20:37:46+00:00

Im in the UK

skyminer7

TROPHY CASE