K24 Miata swap... finally a reality - K20A.org .:. The K Series Source . Honda / Acura K20a k24a Engine Forum
Reply
 
Thread Tools
Old 03-16-2013, 08:06 PM   #1
K Miata
formerly magicDC2
 
K Miata's Avatar
 
Join Date: Aug 2009
Location: KMiata.com
Posts: 1,489
Default K24 Miata swap... finally a reality

2/21/14 EDIT: more pics and details at www.kmiata.com, check it out.

I have been laying low on the forum for the past few months, but I have some exciting news for the K series and Miata communities.

With the help of a few close friends, we are building what we believe to be the first K swapped Miata. Best of all, once we have it up and running (summer of 2013) and have some seat time on track, I plan to make all essential swap parts available for purchase. It's putting the cart before the horse a bit, but just wanted to let everyone know that this is not just a one-off swap, but one I hope can be easily duplicated by fellow racers.

As a K24 integra track car owner, as well as a Miata owner, this swap just needed to happen. Honda reliability, and a 2000 lb. RWD chassis with legendary handling is going to make the perfect track car, or even daily driver.

Best of all, we expect this swap to cost us less than most popular K swaps into the EG, EK, and DC2 chassis, as we are using the stock Miata trans (5 or 6 speed), stock rear diff with Torsen LSD, stock shifter, driveshaft, radiator, axles, etc. As you can see from the pics, the miata has TONS of room for this motor. Although we are mocking this all up with a cheapo k24a1 motor, the eventual plan is a 230+ whp 190 wtq k24a2 setup. Stock bottom end, just some cams and dual valve springs (maybe even use the stock TSX cams). We will be using an S2000 manifold with an adapter plate, which should be ready to install in the next week or so. Clutchmasters is supplying me with a custom flywheel that will allow any Miata clutch kit to be used.

Biggest part of the project is the crossmember mod, which is still in process but will be done this week. While this first car will have a chopped, tubed, and welded stock piece, we plan to do the next car with a full tubular crossmember similar to the V8 swap kits. Next car we do should be a bolt on swap with no welding needed.

I feel this swap has some distinct advantages to other Miata power upgrades. I feel it is a better choice that a turbo setup because we will make more power out of a mildly modified K series build, and it will keep things cool and reliable on track. V8 swaps are cool, but less practical for road racing, they add 200 lbs., and require much more modification and parts that our project. V8 swaps require welding, custom driveshaft, new rear end, axles, and the list goes on. Finally, f20c and f22c swaps have been done, but as we all know, a k24 has much more all motor potential than these motors, it has VTC, and more aftermarket support. Plus using the stock Miata trans simplifies the swap and keeps cost down.

Anyway, enough talk, here are pics of our first few hours of the swap. Stay tuned

EDIT: the final design will be keeping the factory steering rack location. Seems pretty important to the Miata guys, so expect to see subframe/oil pan version 2.0 in the next few weeks....


IMG_0676 by magicDC2, on Flickr
high compression Type R wannabe Miata engine, lucky to make 150whp.


IMG_0688 by magicDC2, on Flickr


IMG_0694 by magicDC2, on Flickr
bye bye


IMG_0696 by magicDC2, on Flickr
Here is our temporary k24a1 with the lovely K series to Miata trans adapter plate


IMG_0698 by magicDC2, on Flickr


IMG_0699 by magicDC2, on Flickr
Jabaay is so handsome


IMG_0704 by magicDC2, on Flickr
first mock up, looks like hood clearance will be good, although a bit tighter than a stock BP Miata motor.


IMG_0711 by magicDC2, on Flickr


IMG_0708 by magicDC2, on Flickr


IMG_0720 by magicDC2, on Flickr
cross member dropped and cleaned up


IMG_0735 by magicDC2, on Flickr
this is what we cut out


IMG_0743 by magicDC2, on Flickr


IMG_0752 by magicDC2, on Flickr
Jabaay plating up the cross member


IMG_0753 by magicDC2, on Flickr
test fit


IMG_0754 by magicDC2, on Flickr


IMG_0751 by magicDC2, on Flickr
OEM flywheel dust shield, Honda part #21351-PNB-000

Stay tuned for pics of completed crossmember and custom header this week!
__________________
www.KMiata.com - the original K series Miata swap

David Calzada
Metric Performance LLC
sales@kmiata.com
www.facebook.com/kmiata



Have questions on building your own RWD K series car? Please email or PM me

Last edited by K Miata; 02-21-2014 at 04:44 PM..
K Miata is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-16-2013, 08:57 PM   #2
Martian
New Member
 
Martian's Avatar
 
Join Date: Feb 2012
Location: Lakewood Colorado
Posts: 88
Default Re: K24 Miata swap... finally a reality

Love it, nice job and idea
__________________
RWD K powered civic in progress
http://photobucket.com/rwdcivic
http://www.facebook.com/gunmetalcivic
Martian is offline   Reply With Quote Quick reply to this message
Old 03-16-2013, 11:33 PM   #3
10cjennings
K20a.org Basic User
 
10cjennings's Avatar
 
Join Date: Nov 2011
Location: So FLA
Posts: 458
Default Re: K24 Miata swap... finally a reality

Hell yes, I'll be following this.
10cjennings is offline   Reply With Quote Quick reply to this message
Old 03-17-2013, 06:39 AM   #4
BSIVOLJR
Lifetime Member
 
BSIVOLJR's Avatar
 
Join Date: May 2009
Posts: 1,970
Default Re: K24 Miata swap... finally a reality

Wow INNNNNNNN! Any ideas for your wiring solutions?
__________________
'Had a K before the RSX...'

HIGH TECH TRANSMISSIONS- Transmission Tech
Contact me for questions, custom build, or rebuild requests for your transmission.


Lunch Break=K24a2 iVTEC Time
BSIVOLJR is offline   Reply With Quote Quick reply to this message
Old 03-17-2013, 07:26 AM   #5
drtye
Lifetime Member
 
drtye's Avatar
 
Join Date: Sep 2006
Location: PA
Posts: 9,798
Default Re: K24 Miata swap... finally a reality

Sick!
drtye is offline   Reply With Quote Quick reply to this message
Old 03-17-2013, 11:59 AM   #6
K Miata
formerly magicDC2
 
K Miata's Avatar
 
Join Date: Aug 2009
Location: KMiata.com
Posts: 1,489
Default Re: K24 Miata swap... finally a reality

Quote:
Originally Posted by BSIVOLJR View Post
Wow INNNNNNNN! Any ideas for your wiring solutions?
Thanks guys, we are pretty excited. Wiring should be pretty straightforward. We will probably do a one-off custom harness by using the two factory harnesses, and then eventually do a fresh Rywire custom harness once it runs and the car has been tested and we are happy with it.
__________________
www.KMiata.com - the original K series Miata swap

David Calzada
Metric Performance LLC
sales@kmiata.com
www.facebook.com/kmiata



Have questions on building your own RWD K series car? Please email or PM me
K Miata is offline   Reply With Quote Quick reply to this message
Old 03-17-2013, 12:51 PM   #7
10cjennings
K20a.org Basic User
 
10cjennings's Avatar
 
Join Date: Nov 2011
Location: So FLA
Posts: 458
Default Re: K24 Miata swap... finally a reality

Should the major swap parts (mounts, cross-member) be the same for an NA as the NB? I've never owned a miata but have been thinking about it for a while.

Also what are you doing for a header?

And minimal VC to hood clearance is fine as long as they dont hit but what about oil pan to ground clearance?
10cjennings is offline   Reply With Quote Quick reply to this message
Old 03-17-2013, 12:58 PM   #8
K Miata
formerly magicDC2
 
K Miata's Avatar
 
Join Date: Aug 2009
Location: KMiata.com
Posts: 1,489
Default Re: K24 Miata swap... finally a reality

Quote:
Originally Posted by 10cjennings View Post
Should the major swap parts (mounts, cross-member) be the same for an NA as the NB? I've never owned a miata but have been thinking about it for a while.

Also what are you doing for a header?

And minimal VC to hood clearance is fine as long as they dont hit but what about oil pan to ground clearance?
Mounts will be the same, and we recommend using an NB crossmember because the suspension pickup points are superior. Eventually we will have a nice tubular subframe that you could bolt up to any Miata, 90-05.

Header is going to be custom, but I also plan to make this available eventually. I will also become of sponsor of this awesome site when that happens

Oil pan clearance will be same as a stock Miata, which is perfectly flush with the subframe and the rest of the car. Nowhere near as bad as my integra with the K.
__________________
www.KMiata.com - the original K series Miata swap

David Calzada
Metric Performance LLC
sales@kmiata.com
www.facebook.com/kmiata



Have questions on building your own RWD K series car? Please email or PM me
K Miata is offline   Reply With Quote Quick reply to this message
Old 03-17-2013, 01:17 PM   #9
10cjennings
K20a.org Basic User
 
10cjennings's Avatar
 
Join Date: Nov 2011
Location: So FLA
Posts: 458
Default Re: K24 Miata swap... finally a reality



I'll definitely be considering this for a future project, especially if a bolt in cross member gets released. The K24 should be a perfect match for the miata.
10cjennings is offline   Reply With Quote Quick reply to this message
Old 03-17-2013, 03:12 PM   #10
MITeggy17
K20a.org Basic User
 
MITeggy17's Avatar
 
Join Date: Jan 2008
Location: The Kingdom
Posts: 184
Default Re: K24 Miata swap... finally a reality

Hopefully I'll see this thing at GMan come summer
__________________
Showoff
Tuna Crew
MITeggy17 is offline   Reply With Quote Quick reply to this message
Old 03-17-2013, 04:18 PM   #11
Mixwell
k20a.orgy
 
Mixwell's Avatar
 
Join Date: Sep 2008
Location: Houston TX
Posts: 2,476
Default Re: K24 Miata swap... finally a reality

hell yea!
__________________
.........................issforged wheels.........................
------------------------------------------------------
=====>MIXWELL'S s2k24a2 PROJECT<=====
Mixwell is offline   Reply With Quote Quick reply to this message
Old 03-18-2013, 08:13 PM   #12
chad
K20a.org Basic User
 
Join Date: Nov 2003
Location: Greensboro NC
Posts: 288
Default Re: K24 Miata swap... finally a reality

What are you doing about the wrong end of the intake manifold with tbody???

If this kit can be produced for around 2000 i'll get one....and a miata....

265 hp and 205 tq right now in a civic is FUN....this in a miata would be fun^10000000
chad is offline   Reply With Quote Quick reply to this message
Old 03-18-2013, 08:23 PM   #13
10cjennings
K20a.org Basic User
 
10cjennings's Avatar
 
Join Date: Nov 2011
Location: So FLA
Posts: 458
Default Re: K24 Miata swap... finally a reality

Quote:
Originally Posted by chad View Post
What are you doing about the wrong end of the intake manifold with tbody???
Not sure if this answers your question but they are using an s2000 IM /w an adapter plate.
10cjennings is offline   Reply With Quote Quick reply to this message
Old 03-18-2013, 08:28 PM   #14
Mixwell
k20a.orgy
 
Mixwell's Avatar
 
Join Date: Sep 2008
Location: Houston TX
Posts: 2,476
Default Re: K24 Miata swap... finally a reality

Quote:
Originally Posted by chad View Post
What are you doing about the wrong end of the intake manifold with tbody???

If this kit can be produced for around 2000 i'll get one....and a miata....

265 hp and 205 tq right now in a civic is FUN....this in a miata would be fun^10000000
depends on ECU...? (only familiar with kpro here.)

if using kpro, shouldn't be a problem, just have to rewire the (i'm guessing the s2000) TPS on the wire harness side. should have the same min to max (0.5 to 12.0 voltage). if that doesn't work, B series TB bolt up just fine to the s2000 intake manifold. what i'm saying is that i'm not sure of the s2000 TPS sensor, but i know that the B series sensor can be made to work.

also, you can find after market TB for the b series, like s90.

the guys at magnus told me the k series TB won't work, since the inlet and tb is facing the wrong direction.

sorry to thread jack lol
__________________
.........................issforged wheels.........................
------------------------------------------------------
=====>MIXWELL'S s2k24a2 PROJECT<=====
Mixwell is offline   Reply With Quote Quick reply to this message
Old 03-18-2013, 08:34 PM   #15
BlackNDecker
USDM > *
 
BlackNDecker's Avatar
 
Join Date: Nov 2009
Posts: 4,734
Default Re: K24 Miata swap... finally a reality

Is this the build Austin @ GTMotoring was telling me about?
__________________
HYBRIDRACING American. Made. Quality.
http://www.hybrid-racing.com/
BlackNDecker is offline   Reply With Quote Quick reply to this message
Old 03-18-2013, 09:15 PM   #16
Mike97LS
K20a.org Basic User
 
Join Date: Sep 2005
Location: Albquerque NM
Posts: 105
Default Re: K24 Miata swap... finally a reality

I always love seeing new tech and products that expand peoples options
Mike97LS is offline   Reply With Quote Quick reply to this message
Old 03-18-2013, 10:05 PM   #17
fiendin4speed
New Member
 
Join Date: Feb 2005
Posts: 1
Default Re: K24 Miata swap... finally a reality

Very cool. Can't wait to see how this comes out. You should get this onto some miata forums, well it already is, but I'm sure it would blow up. Our motors suck and we know it lol. Emilio of 949 racing has already cross posted this thread on miataturbo.net and it is getting quite a bit of interest.

Just a thought on the intake manifold. A popular miata intake is the "randall" style sold by flyinmiata. It pulls air from behind the firewall in that big space in the cowl. Its actually a high pressure zone and shows a few hp gained over a normal intake. Knowing this, having the IM face the firewall might not be terrible in this application, given there is room to place an intake of course.

Any idea on weight saved?

Is the steering rack being moved?

A 300whp N/A 2000lb miata...
fiendin4speed is offline   Reply With Quote Quick reply to this message
Old 03-18-2013, 10:27 PM   #18
10cjennings
K20a.org Basic User
 
10cjennings's Avatar
 
Join Date: Nov 2011
Location: So FLA
Posts: 458
Default Re: K24 Miata swap... finally a reality

Quote:
Originally Posted by fiendin4speed View Post
Very cool. Can't wait to see how this comes out. You should get this onto some miata forums, well it already is, but I'm sure it would blow up. Our motors suck and we know it lol. Emilio of 949 racing has already cross posted this thread on miataturbo.net and it is getting quite a bit of interest.

Just a thought on the intake manifold. A popular miata intake is the "randall" style sold by flyinmiata. It pulls air from behind the firewall in that big space in the cowl. Its actually a high pressure zone and shows a few hp gained over a normal intake. Knowing this, having the IM face the firewall might not be terrible in this application, given there is room to place an intake of course.

Any idea on weight saved?

Is the steering rack being moved?

A 300whp N/A 2000lb miata...
lol @ some of the posts in that thread, namely the F vs K posts. Here's a link for others.
http://www.miataturbo.net/engine-per...ta-swap-71588/

They do raise a seemingly good point on steering geometry, OP what was the problems others were having with f swaps and steering?
10cjennings is offline   Reply With Quote Quick reply to this message
Old 03-19-2013, 06:50 AM   #19
K Miata
formerly magicDC2
 
K Miata's Avatar
 
Join Date: Aug 2009
Location: KMiata.com
Posts: 1,489
Default Re: K24 Miata swap... finally a reality

Quote:
Originally Posted by BlackNDecker View Post
Is this the build Austin @ GTMotoring was telling me about?
Yes sir, it's my idea going into Austin's car.

The plan is an S2000 manifold, but I am intrigued about this intake idea that runs into the cowl.... I will look into that.

Yes, we are moving the steering rack forward 4 inches, as the F20C swap guys have done. Some Miata guys seem to care about this, others don't, but from the feedback F20C swap guys have provided, it does not change steering unless you are near full lock, and even then its not bad. It's a small compromise we are very willing to make. We mocked up the rack last night, and will take some pictures from below once the control arms are back on.

We have done a lot of research on this part of the swap, and I'm not going to go into all the details here, but short version is yes, it will work. Yes, steering will still be very responsive, and yes this car will kick the crap out of most anything on track, especially with some 275 Hoosiers all around.

More pics coming soon, just need to upload them....
__________________
www.KMiata.com - the original K series Miata swap

David Calzada
Metric Performance LLC
sales@kmiata.com
www.facebook.com/kmiata



Have questions on building your own RWD K series car? Please email or PM me

Last edited by K Miata; 03-19-2013 at 07:00 AM..
K Miata is offline   Reply With Quote Quick reply to this message
Old 03-19-2013, 07:06 AM   #20
iBUILT
K20A.org Sponsor
 
iBUILT's Avatar
 
Join Date: Oct 2009
Location: Sanford, FL
Posts: 1,585
Default Re: K24 Miata swap... finally a reality

Love this, And you are definitely on the right track making it a cost effective and bolt in affair.
__________________
Tom Creen | IPGparts.com
1291 West Airport Blvd | Sanford, FL 32773
T: 407-324-4684 | Email: Tom@IPGparts.com
iBUILT is offline   Reply With Quote Quick reply to this message
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the K20A.org .:. The K Series Source . Honda / Acura K20a k24a Engine Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may not post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT -8. The time now is 07:50 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.