|
Engine Swaps Discussion of engine swaps. |
|
Thread Tools | Search this Thread |
11-04-2021, 05:37 PM | #1 |
Senior Member
Join Date: Jun 2012
Drives: '13 BRZ TLM Spec
Location: Florida
Posts: 1,986
Thanks: 1,640
Thanked 2,389 Times in 1,021 Posts
Mentioned: 115 Post(s)
Tagged: 0 Thread(s)
|
Likely the first FA2/4 hybrid incoming
Ordered a brand new FA24 short-block once the part numbers were published. It is due to arrive November 15th.
Plan is to build using the FA24 short-block with FA20 heads, similar to the EJ20/25 hybrid builds done on the older WRX's. This will be installed in my 2013 BRZ (using the 2015 wire harness, coils, sensors, etc) and run with an Ecutek tune. Lots of unknowns with this...good news is the cylinder heads share the same oil and coolant passages and the head gaskets, when laid on top of one another are identical other than the bore size. The short block external size is identical to the FA20, The cylinder heads are very, very similar to one another (FA24 uses slightly different intake port sizes and shape and has a slightly longer intake valve length, and there are some changes to the oiling system on the FA24 that may require some other parts mingling between the two... Currently on order: FA24 Short-block FA24 Engine Gasket set FA20 Rocker cover gaskets (different than FA24 because it uses plastic rocker covers) FA20 Intake Manifold gaskets Expect to need, haven't ordered: FA24 front timing cover/oil pump FA24 Upper oil pan FA24 Oil Baffle FA24 Oil Pickup FA24 Oil Pan (Very similar looking, but different part number) Watch along and see what happens...if it all goes together, if it runs, what parts from each series are needed, what power can be wrangled out of it and more.... So far I've started tearing down the donor FA20 waiting for the FA24 parts to arrive....
__________________
2020 GMC Canyon Denali Duramax, 2021 Forester Sport, 2000 Subaru Legacy B4 RSK 5MT (JDM Import) and random 86 chassis rebuilds....
|
The Following 46 Users Say Thank You to Opie For This Useful Post: | AgentBlue243 (11-04-2022), alphasaur (11-05-2021), bcj (11-06-2021), Boomerang (11-05-2021), boy_racer (12-05-2021), BrahmaBull1990 (11-05-2021), chaoskaze (01-09-2023), Code Monkey (11-04-2021), DarkSunrise (11-04-2021), endless_pain (11-08-2021), femaledog (11-05-2021), flippy (11-09-2021), gkubed (07-05-2022), Goingnowherefast (11-05-2021), Grateful Dave (12-02-2021), Irace86.2.0 (11-04-2021), JD001 (07-04-2022), Jdmjunkie (11-04-2021), jkamelo (01-10-2022), JSIdriver51 (11-04-2021), kevaughan (01-07-2022), Kiske (11-09-2021), Lonewolf (11-06-2021), ML (11-05-2021), MrSkubi (11-05-2021), new2subaru (11-06-2021), NoHaveMSG (11-04-2021), pope (11-04-2021), sato (11-09-2021), soundman98 (11-04-2021), Spankopotomous (11-04-2021), Spawn_Of_Creation (01-05-2022), Spuds (01-25-2022), Stonehorsw (11-10-2021), SuperTom (02-23-2022), surfwaxsmitty (06-19-2022), T-Steve (11-07-2021), Takumi788 (11-05-2021), tato.valverde (11-10-2021), Tatsu333 (11-07-2021), Teseo (12-16-2022), villainous_frx (11-05-2021), whataboutbob (07-05-2022), Xero-Limit (12-28-2021), Z06ZN6 (11-05-2021), ZDan (11-04-2021) |
11-04-2021, 05:57 PM | #2 |
Senior Member
Join Date: Aug 2014
Drives: 2013 FR-S
Location: Northwest Iowa
Posts: 7,359
Thanks: 454
Thanked 4,548 Times in 2,950 Posts
Mentioned: 59 Post(s)
Tagged: 5 Thread(s)
|
What's the purpose of using the FA20 heads? So we know that they flow better than the 24s?
Sent from my ONEPLUS A5010 using Tapatalk |
11-04-2021, 06:11 PM | #3 |
Senior Member
Join Date: Mar 2017
Drives: Q5 + BRZ + M796
Location: Santa Rosa, CA
Posts: 7,884
Thanks: 5,668
Thanked 5,807 Times in 3,300 Posts
Mentioned: 70 Post(s)
Tagged: 0 Thread(s)
|
When I saw Hybrid I thought you connected an electric motor between the engine and transmission. This a Frankenstein like the K20/K24. Glad to see someone doing this swap so soon. I’m sure this thread will be super helpful for many people.
__________________
My Build | K24 Turbo Swap | *K24T BRZ SOLD*
|
11-04-2021, 06:55 PM | #4 |
Senior Member
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 11,358
Thanks: 18,535
Thanked 16,601 Times in 7,519 Posts
Mentioned: 110 Post(s)
Tagged: 0 Thread(s)
|
Didn't realize the short block part numbers where available. I will be watching this intently. Curious if the 2.4 piston clears the cylinder head and what the CR would be. There looks to be plenty of room to mill them if need be.
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
|
11-04-2021, 07:42 PM | #5 |
Senior Member
Join Date: Jun 2021
Drives: 2015 FR-S
Location: San francisco
Posts: 364
Thanks: 155
Thanked 157 Times in 103 Posts
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
|
subbed! living vicariously through all you trailblazers!
Biggest question I think is the timing cover! better hope no holes were changed on the upper oil pan/heads |
11-04-2021, 07:43 PM | #6 |
I just Drive.
Join Date: Jun 2012
Drives: in the womb still
Location: WI/MN
Posts: 299
Thanks: 0
Thanked 116 Times in 86 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
|
Unless you know one head flows more than the other there is no point unless chamber artificially raises compression? Just flow the K24 versus k20 heads before you get carried away.
__________________
-Waiting patiently for the right FT-86...
-92' Acura Legend 5spd coupe twin turbo project |
11-04-2021, 07:59 PM | #7 |
Senior Member
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 11,358
Thanks: 18,535
Thanked 16,601 Times in 7,519 Posts
Mentioned: 110 Post(s)
Tagged: 0 Thread(s)
|
Yeah I agree about the timing cover. I was kind of surprised to see the upper oil pan/pickup change.
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
|
11-04-2021, 08:10 PM | #8 |
Senior Member
Join Date: Jun 2012
Drives: '13 BRZ TLM Spec
Location: Florida
Posts: 1,986
Thanks: 1,640
Thanked 2,389 Times in 1,021 Posts
Mentioned: 115 Post(s)
Tagged: 0 Thread(s)
|
Per the service manual, all the mounting holes, etc are in the same place. Will know for sure once it arrives.
__________________
2020 GMC Canyon Denali Duramax, 2021 Forester Sport, 2000 Subaru Legacy B4 RSK 5MT (JDM Import) and random 86 chassis rebuilds....
|
The Following User Says Thank You to Opie For This Useful Post: | NoHaveMSG (11-04-2021) |
11-04-2021, 08:11 PM | #9 |
Senior Member
Join Date: Jun 2021
Drives: 2015 FR-S
Location: San francisco
Posts: 364
Thanks: 155
Thanked 157 Times in 103 Posts
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
|
Don't think this is for flow reasons. Its a cheaper alternative to get a "built" block for FA20 but also gain 400cc. if successful you get to use the same cam sensors /vvt /engine harness and FA20 ECU that is already supported for tuning. I wonder if the wrx STI FA24 short block might even fit in here
It could become a good upgrade for Gen1 instead of getting like a crawford / IAG built block Also his FA20 heads are probably free haha... so many blown FA20s |
The Following 7 Users Say Thank You to FrickingReallySlow For This Useful Post: | endless_pain (11-08-2021), Goingnowherefast (11-05-2021), NoHaveMSG (11-04-2021), Opie (11-04-2021), rice_classic (11-10-2021), Spankopotomous (11-04-2021), Takumi788 (11-05-2021) |
11-04-2021, 08:12 PM | #10 |
Senior Member
Join Date: Jun 2012
Drives: '13 BRZ TLM Spec
Location: Florida
Posts: 1,986
Thanks: 1,640
Thanked 2,389 Times in 1,021 Posts
Mentioned: 115 Post(s)
Tagged: 0 Thread(s)
|
Had them available, cost savings and compatibility with the '13-'16 harnesses, OCV triggers, etc.
__________________
2020 GMC Canyon Denali Duramax, 2021 Forester Sport, 2000 Subaru Legacy B4 RSK 5MT (JDM Import) and random 86 chassis rebuilds....
|
11-04-2021, 08:26 PM | #11 | |
Senior Member
Join Date: Aug 2014
Drives: 2013 FR-S
Location: Northwest Iowa
Posts: 7,359
Thanks: 454
Thanked 4,548 Times in 2,950 Posts
Mentioned: 59 Post(s)
Tagged: 5 Thread(s)
|
Quote:
Sent from my ONEPLUS A5010 using Tapatalk |
|
11-04-2021, 09:20 PM | #12 |
Senior Member
Join Date: May 2012
Drives: 2013 Series 10 6MT FR-S
Location: Moreno Valley, CA
Posts: 5,565
Thanks: 2,013
Thanked 2,041 Times in 1,474 Posts
Mentioned: 72 Post(s)
Tagged: 0 Thread(s)
|
Subbed!!
__________________
2013 Series 10 FRS #553
RCE T2's, SPC LCAs -4/2.6 camber JDL 4-2-1 EL, FP and OP, Tuned by Zach@CSG on e85 RR Wilwood Front/Rear Sport BBK, Motul 600 Fluid ARC-8 17x9 SX2 GTs 245s/Koing 17x8 v730's 225's |
11-04-2021, 10:52 PM | #13 |
Master Collaborator
Join Date: Nov 2019
Drives: Was '15 FR-S, 6MT, Now '15 GT86
Location: West Virginia, USA
Posts: 1,415
Thanks: 211
Thanked 999 Times in 605 Posts
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
|
I shall dub this build.....
Franken-Opie Good luck! |
The Following User Says Thank You to FR-S2GT86 For This Useful Post: | BrahmaBull1990 (11-05-2021) |
11-05-2021, 12:58 AM | #14 |
Howdy
Join Date: Feb 2021
Drives: 2020 BRZ PP
Location: Snohomish, WA
Posts: 589
Thanks: 1,271
Thanked 446 Times in 248 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
|
Yesss!
__________________
There's a point at 7,000 RPM... where everything fades. The machine becomes weightless. Just disappears. And all that's left is a body moving through space and time. 7,000 RPM. That's where you meet it. You feel it coming. It creeps up on you, close in your ear. Asks you a question. The only question that matters. Who are you?
|
|
|
Thread Tools | Search this Thread |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
FA20 vs FA24 | Zata | Engine, Exhaust, Transmission | 15 | 06-01-2023 11:18 AM |
FA24 In-Depth Look | Kona61 | GR86 General Topics (2nd Gen 2022+ Toyota 86) | 36 | 10-11-2021 09:27 AM |
Second Gen Swap? FA24 | AutoNewb | Engine Swaps | 86 | 07-06-2021 11:55 AM |
FA24 Mix n Match | RiceCracker86 | Engine, Exhaust, Transmission | 1 | 04-18-2019 04:59 PM |
Incoming... | MisterSheep | Off-Topic Lounge [WARNING: NO POLITICS] | 19 | 04-02-2016 01:33 AM |