09-01-2021, 01:40 PM | #281 |
Senior Member
Join Date: Sep 2017
Drives: 16' WWB
Location: Austin, TX
Posts: 175
Thanks: 209
Thanked 126 Times in 61 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
|
While I anxiously await the arrival of kit, does anyone have feedback on a good set of cams that won't disrupt any bottom end power for a stock K24a2? Or should I just stick with stock cams...
|
09-01-2021, 03:25 PM | #282 | |
Wears Pants
Join Date: Apr 2019
Drives: 14 FRS K24 swap - SOLD
Location: Bella Vista, AR
Posts: 559
Thanks: 380
Thanked 449 Times in 274 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
|
Quote:
The 50 degree cam gear is your best upgrade using factory parts if you already have the better cams. The stock TSX only has the 25 degree gear. Last edited by captain awesome; 09-01-2021 at 03:59 PM. |
|
09-01-2021, 04:18 PM | #283 | |
Senior Member
Join Date: Mar 2017
Drives: Q5 + BRZ + M796
Location: Santa Rosa, CA
Posts: 7,882
Thanks: 5,665
Thanked 5,802 Times in 3,297 Posts
Mentioned: 70 Post(s)
Tagged: 0 Thread(s)
|
Quote:
If you want more then you should consider E85 and consider adding supporting mods for the car that improve longevity, or even consider other performance mods like tires, breaks, cooling, aero, etc. If you want more than 300whp and don't want to flirt with a disaster near 350whp then consider the swap. At that point, you could sell your supercharger kit for close to what you paid because it is already used, and you could sell your working motor for $3500, which between selling those two things, it should get you closer to the cost of the full K24 kit. And before you jump on that boat, you would probably want to consider whether you would rather just boost a FA24 on the GR86 or if you want to stick with the first gen to do FI or go NA. A JRSC on the FA24 will probably hold 350+whp more reliably with a limit of 400+whp; we don't know yet what its potential will be. Personally, I have invested in the interior, audio. exterior, brakes, suspension, etc on this platform and prefer the looks overall, so I am sticking with it for now, but honestly, a boosted FA24 is going to be a beast as is.
__________________
My Build | K24 Turbo Swap | *K24T BRZ SOLD*
|
|
09-01-2021, 04:34 PM | #284 | |
Senior Member
Join Date: Mar 2017
Drives: Q5 + BRZ + M796
Location: Santa Rosa, CA
Posts: 7,882
Thanks: 5,665
Thanked 5,802 Times in 3,297 Posts
Mentioned: 70 Post(s)
Tagged: 0 Thread(s)
|
Quote:
https://tractuff.com/products/tractuff-vtc-limiter A TSX RBB will have a three lobe cam with decent lift as is. You can go more aggressive, or you could get the K20a head, which I think is a little more aggressive and flows better. For NA builds, just start with a K20A head on the K24 block, or get a 4 Piston head to put on your block. Port and polish work will open them up that much more. I don't think the K20a heads will be a problem with this wiring harness or intake manifold, but contact Kpower to confirm. A cam lobe can have any reasonable shape, and because the cam physically changes to a different "high" lobe when VTEC is activated, there are plenty of possibilities; the low lobe could stay identical and the high lobe could be larger, or whatever. You will need to select the cam profile based on your goals and your build. I have the RSX Type S oil pump that raises the risk of cavitation beyond 8k, but I don't really plan on revving the stock motor past 7.5k until I do a build on the bottom end. Even then, 8k is probably fine, but we will see. With that said, a high rpm build will require a cam lobe with not only high lift but also high duration, so the valve is open as long as possible because the piston speeds will be so high that there just won't be enough time for the valve to be open to deliver air and fuel. The point is: it depends, but just remember that between VTEC and variable valve timing there is a lot of potential for variation.
__________________
My Build | K24 Turbo Swap | *K24T BRZ SOLD*
|
|
09-02-2021, 09:17 AM | #285 |
Senior Member
Join Date: May 2013
Drives: 2007 Mazda 3, New Raven FR-S 6mt
Location: Florida
Posts: 179
Thanks: 90
Thanked 61 Times in 45 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
|
i was talking to a shop that sell engines, he was telling me that doing the k20 head swap is waste of money on N/A build because you only gain a like 10hp and wasting close to 1k, now he told me that if you plan a turbo build then the k20 head is way better for turbo builds. I am still learning on K engines since there is so much info. probably i will do N/A build with 250hp or 230hp is fine.
|
The Following User Says Thank You to Carlysh For This Useful Post: | Irace86.2.0 (09-02-2021) |
09-02-2021, 10:24 AM | #286 | |
Senior Member
Join Date: Dec 2019
Drives: 2022 BRZ sport-tech
Location: Canada
Posts: 395
Thanks: 343
Thanked 185 Times in 116 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
|
Quote:
I am not entirely sure how reliable would a SC FA20 be, even for a lightly tracked car and I don't think it's something I want to venture into.
__________________
Daijiro Katoh - Champion Forever!
Past: 92 EG w/JDM B18C, 00 EK w/JDM B18C, 04 600RR, 97 ITR #421, 10 Acura CSX-S, 17 BRZ Current: 22 BRZ, 00 S2K - #0220 Last edited by Petah78; 09-02-2021 at 12:50 PM. |
|
The Following User Says Thank You to Petah78 For This Useful Post: | Irace86.2.0 (09-02-2021) |
09-02-2021, 10:42 AM | #287 | |
Senior Member
Join Date: Dec 2019
Drives: 2022 BRZ sport-tech
Location: Canada
Posts: 395
Thanks: 343
Thanked 185 Times in 116 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
|
Quote:
__________________
Daijiro Katoh - Champion Forever!
Past: 92 EG w/JDM B18C, 00 EK w/JDM B18C, 04 600RR, 97 ITR #421, 10 Acura CSX-S, 17 BRZ Current: 22 BRZ, 00 S2K - #0220 |
|
The Following 2 Users Say Thank You to Petah78 For This Useful Post: | Carlysh (09-02-2021), Irace86.2.0 (09-02-2021) |
09-02-2021, 12:25 PM | #288 | |
Senior Member
Join Date: May 2013
Drives: 2007 Mazda 3, New Raven FR-S 6mt
Location: Florida
Posts: 179
Thanks: 90
Thanked 61 Times in 45 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
|
Quote:
The issue i am having is my motor is at 130k miles and dont know either go the supercharged route or k24. |
|
09-02-2021, 12:49 PM | #289 | |
Senior Member
Join Date: Dec 2019
Drives: 2022 BRZ sport-tech
Location: Canada
Posts: 395
Thanks: 343
Thanked 185 Times in 116 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
|
Quote:
And maybe I am silly to think this but after watching the speed academy JRSC FRS, it kind of left me underwhelmed as their bolt on AP1 (F22c powered) kept up pretty good with it. Anyways, if I was planning to add power to this car, it probably wouldn't be a FA20.
__________________
Daijiro Katoh - Champion Forever!
Past: 92 EG w/JDM B18C, 00 EK w/JDM B18C, 04 600RR, 97 ITR #421, 10 Acura CSX-S, 17 BRZ Current: 22 BRZ, 00 S2K - #0220 |
|
09-02-2021, 01:01 PM | #290 | |
Senior Member
Join Date: Mar 2017
Drives: Q5 + BRZ + M796
Location: Santa Rosa, CA
Posts: 7,882
Thanks: 5,665
Thanked 5,802 Times in 3,297 Posts
Mentioned: 70 Post(s)
Tagged: 0 Thread(s)
|
Quote:
If I was going NA then I would buy the K24 from an Accord or CRV at the pick n pull for nothing, get a K20 head, do pistons n rods n bearings n ARP head studs while it is all apart with high compression and E85, do RSX type s oil pump, 50 degree cam with limiter, port n polish the head, upgrade the valvetrain for 8k+ redline, a/c delete, water pump delete to electric pump, lightweight flywheel and let er rip. If I ever do a NA build like that, it will be for a track focused RF Miata.
__________________
My Build | K24 Turbo Swap | *K24T BRZ SOLD*
|
|
09-02-2021, 01:01 PM | #291 | |
Senior Member
Join Date: Sep 2012
Drives: 13 White MT FR-S
Location: Gastonia, NC
Posts: 1,836
Thanks: 974
Thanked 1,121 Times in 518 Posts
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
|
Quote:
__________________
|
|
09-02-2021, 01:44 PM | #292 | |
Junior Member
Join Date: Aug 2021
Drives: 2016 BRZ
Location: GA
Posts: 1
Thanks: 0
Thanked 2 Times in 1 Post
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
|
Quote:
Luke from 4Piston told me that their ported TSX head is good for a bit over 300 HP NA with the right build. He said if you want to get to closer to 350 HP NA you would need to go to an RBC head with the 4P Pro 163 and their RR4 cams. Of course, this also requires the right valve and spring upgrades. 4Piston offered to swap out my RBB TSX head core for an RBC for $100 when I send my head for porting, so that might make the K20 head swap more viable for someone looking for more NA power. |
|
The Following 2 Users Say Thank You to User_86 For This Useful Post: | Irace86.2.0 (09-02-2021), venenon (09-02-2021) |
09-02-2021, 02:14 PM | #293 |
Senior Member
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 11,118
Thanks: 18,090
Thanked 16,253 Times in 7,346 Posts
Mentioned: 106 Post(s)
Tagged: 0 Thread(s)
|
In terms of FA20, 1k for 10hp sounds like a decent deal lol.
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
|
The Following User Says Thank You to NoHaveMSG For This Useful Post: | Irace86.2.0 (09-02-2021) |
09-02-2021, 02:14 PM | #294 | |
Senior Member
Join Date: Mar 2017
Drives: Q5 + BRZ + M796
Location: Santa Rosa, CA
Posts: 7,882
Thanks: 5,665
Thanked 5,802 Times in 3,297 Posts
Mentioned: 70 Post(s)
Tagged: 0 Thread(s)
|
Quote:
__________________
My Build | K24 Turbo Swap | *K24T BRZ SOLD*
|
|
|
|
Thread Tools | Search this Thread |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Rigid Industries SR-Series Pro Light Bar on my BRZ | Stang70Fastback | Cosmetic Modification (Interior/Exterior/Lighting) | 3 | 12-29-2019 03:13 PM |
Airlift from industries finest | J_Nasty | Member's Car Journals | 0 | 02-04-2017 01:59 PM |
Carbox Industries - Introduction | CarBox | CANADIAN Sales | 5 | 04-22-2014 01:22 PM |
86 industries | Duthebarber | Northern California | 70 | 03-28-2014 04:10 PM |
Another 86 Industries another bad experience | sikest | User/Vendor/Sponsor Reviews, Feedback, Comments | 3 | 03-13-2014 01:00 AM |