|
Engine Swaps Discussion of engine swaps. |
|
Thread Tools | Search this Thread |
12-30-2021, 02:10 PM | #1 |
Senior Member
Join Date: Apr 2016
Drives: Whiteout track car; lava donor
Location: Portland, OR
Posts: 244
Thanks: 85
Thanked 64 Times in 40 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
|
Honda l15b7: 205 whp and 226 lb-ft of torque at its hubs, at about 17 psi
A friend proposed this swap to me as the K motors are going up in price and (according to him) less available.
On the surface, it is VERY appealing. The only initial negatives for me are the lack of a swap kit and the low 6500 RPM redline. Has anyone seen one of these motors out of a Civic SI? I wonder how similar the transmission bolt pattern is to the K24A2? Articles like this get me excited: https://www.motortrend.com/features/...type-r-killer/ |
12-30-2021, 02:31 PM | #2 | |
friendly
Join Date: Oct 2018
Drives: 17' 86
Location: Dutchess County, NY
Posts: 719
Thanks: 1,442
Thanked 466 Times in 284 Posts
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
|
Quote:
__________________
Seek comfort in discomfort.
|
|
The Following User Says Thank You to alphasaur For This Useful Post: | wparsons (01-14-2022) |
12-30-2021, 05:33 PM | #3 |
Senior Member
Join Date: Jan 2015
Drives: 2013 toyota 86
Location: Nashville tn
Posts: 117
Thanks: 19
Thanked 139 Times in 57 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
|
ppl are starting to put them in other Hondas like EK civic & fits but as far as i have seen dont think anyone has converted them to a RWD setup. I not a expert by anymeans but i dont think a K serise Trans will mount to it. But i can really see these engine becoming very popular.
|
12-30-2021, 07:57 PM | #4 | |
Senior Member
Join Date: Apr 2016
Drives: Whiteout track car; lava donor
Location: Portland, OR
Posts: 244
Thanks: 85
Thanked 64 Times in 40 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
|
Quote:
The k motors have proven they can handle track abuse; no news yet on the L series. Also the Honda L are getting 300+ hp with more torque with very little bolt on mods and simple tuning. |
|
The Following User Says Thank You to Four_wheel_drifts For This Useful Post: | alphasaur (12-30-2021) |
12-30-2021, 08:06 PM | #5 |
Senior Member
Join Date: Mar 2017
Drives: JRSC BRZ SOLD
Location: Ohio
Posts: 934
Thanks: 677
Thanked 739 Times in 396 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
|
Your friend should be aware that the engine is the cheapest part of the motor swap. There are plenty K24A2s around for $900-1500 USD. The CRV K24 is even cheaper if you want a Vteck killer setup or FI.
No one has proof of Subaru addressing or not addressing the oiling issue yet. The aftermarket has solved it with larger oil pickups and oil pumps for the FA20. |
12-30-2021, 10:25 PM | #6 | |
Senior Member
Join Date: Jan 2018
Drives: Crapcan
Location: Oregon
Posts: 11,172
Thanks: 18,174
Thanked 16,334 Times in 7,386 Posts
Mentioned: 108 Post(s)
Tagged: 0 Thread(s)
|
Quote:
Which rod bearing did you spin? #3?
__________________
"Experience is the hardest kind of teacher. It gives you the test first and the lesson afterward." -Oscar Wilde.
|
|
01-01-2022, 09:02 PM | #7 |
Senior Member
Join Date: Apr 2016
Drives: Whiteout track car; lava donor
Location: Portland, OR
Posts: 244
Thanks: 85
Thanked 64 Times in 40 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
|
Which rod bearing did you spin? #3?[/QUOTE]
Don't know yet. Engine is still in the car. Need to keep it drivable (like onto and off of a car hauler under it's own power) in case it is getting shipped to the great lakes region. I had a weak moment and thought that I would stick with the FA20. Then reread the Element Tuning threads. For as fast as we want to go, Honda seems like to only option. Chevy LS engines would likely also have oil starvation issues at the g's we pull. |
01-02-2022, 01:43 PM | #8 |
Senior Member
Join Date: Mar 2017
Drives: Q5 + BRZ + M796
Location: Santa Rosa, CA
Posts: 7,884
Thanks: 5,668
Thanked 5,805 Times in 3,299 Posts
Mentioned: 70 Post(s)
Tagged: 0 Thread(s)
|
Do we know how these L15 motors are for reliability and for oil starvation? The K-motors are vetted, but are the L-motors? Are we just assuming they will be equal?
The K-motors are still cheaper than the L-engines. The advantage for the K-motors are more displacement, better flow/revs, 4-port exhaust instead of a headifold, VTEC, more power potential, more support, NA or turbo potential, etc. The advantage for the L15 would be a turbo setup out of the gate, so a lower price point for a turbo setup, but the K-motor is typically the cheapest part of a swap, so this is only a small advantage. The L15 might be smaller and lighter, but I don’t know if it is a lot. I would rather get a K24 or K20C from a CTR/Accord.
__________________
My Build | K24 Turbo Swap | *K24T BRZ SOLD*
|
01-02-2022, 05:31 PM | #9 | |
Road-hole
Join Date: Jul 2014
Drives: 2013 Whiteout FR-S
Location: Gilbert, Arizona
Posts: 1,112
Thanks: 272
Thanked 479 Times in 292 Posts
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
|
It's already turbo charged...
Quote:
A) already turbocharged to make the same amount as the FA20 stock B) They're talking bhp, not whp in that article c) They're estimating it has a top end on a stock block of 400 bhp... fa20's with s/c's are making that much and turbos are making more... It would be massively foolish to go through the trouble and expense of an engine swap, (without even a kit for it, so completely custom fabbed) so that you can have the same power level available to you with a stock engine. But hey, you might get a little better mileage with less displacement. Jaden p.s. the biggest advantage of a k-swap is the high rev. That's beneficial because the power comes higher up with less torque. Torque is the enemy of transmissions.... |
|
01-02-2022, 09:28 PM | #10 | |
Senior Member
Join Date: Apr 2016
Drives: Whiteout track car; lava donor
Location: Portland, OR
Posts: 244
Thanks: 85
Thanked 64 Times in 40 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
|
Quote:
b) yes c) This is a non-argument. Read the 55 pages of Element Tuning's thread on here. The NA FA20 can't handle the g's we're pulling; boosting it only makes it worse. I'm reading pioneer stories online about the L being the next K. A local car dismantler in Portland has over 30 long blocks sitting in their warehouse. The K motors need to be ordered in. AR Motorsports (local to Portland) usually buys K24A2 long blocks 2-4 at a time. Again, I'm most likely doing the k swap. But would like to weigh both Honda options. |
|
The Following User Says Thank You to Four_wheel_drifts For This Useful Post: | Jaden (01-02-2022) |
01-07-2022, 11:36 AM | #11 | |
Senior Member
Join Date: Mar 2017
Drives: Q5 + BRZ + M796
Location: Santa Rosa, CA
Posts: 7,884
Thanks: 5,668
Thanked 5,805 Times in 3,299 Posts
Mentioned: 70 Post(s)
Tagged: 0 Thread(s)
|
https://static1.squarespace.com/stat...ules+Final.pdf
Quote:
https://www.motortrend.com/how-to/pr...-cusco-greddy/ Case in point: peak torque is 325, but drops to 275 by 5100 rpms and 250 by 5800. Horsepower is sub 250 after 5800, so the 1.5T might have the advantage, but it might not be a huge difference, especially if GL limits boost. For the street, to have a boosted motor ready to go, these should be popular swaps. https://www.twostepperformance.com/p...honda-civic-si
__________________
My Build | K24 Turbo Swap | *K24T BRZ SOLD*
|
|
01-07-2022, 01:56 PM | #12 | |
Senior Member
Join Date: Aug 2015
Drives: None
Location: Arizona
Posts: 913
Thanks: 1,465
Thanked 1,215 Times in 518 Posts
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
|
Quote:
__________________
|
|
01-08-2022, 12:18 AM | #13 |
Senior Member
Join Date: Mar 2017
Drives: JRSC BRZ SOLD
Location: Ohio
Posts: 934
Thanks: 677
Thanked 739 Times in 396 Posts
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
|
You'd be shifting often and early with that 6400 rpm redline and early power fall off.
|
01-08-2022, 01:55 PM | #14 |
Senior Member
Join Date: Aug 2015
Drives: None
Location: Arizona
Posts: 913
Thanks: 1,465
Thanked 1,215 Times in 518 Posts
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
|
Entirely depends on gearing and I said a slightly larger turbo to help falloff. My last track car was an 04 Miata with the 6spd, 3.91, and an EFR6258. It was a flat table from 3500 to 7000 which basically turned it into a 3-4 car at the slower tracks and a 3-4-5 car normally, super easy to drive.
__________________
|
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
USB hubs? | Sasquachulator | Electronics | Audio | NAV | Infotainment | 1 | 08-21-2021 08:40 PM |
Hubs rusting when running wheels without center caps? Anyone paint the hubs? | Infinity | Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack | 8 | 04-04-2020 08:31 PM |
114.3 hubs | Nigelr32 | Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack | 20 | 03-16-2017 02:49 PM |
Calculate torque when using a crows foot on torque wrench | BirdTRD | DIY (Do-It-Yourself) Guides | 0 | 10-11-2015 04:02 PM |
3 upcoming Honda VTEC motors from Honda!! | RRnold | Other Vehicles & General Automotive Discussions | 10 | 11-19-2013 09:27 PM |