K series Miata swap - Page 4 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 03-18-2013, 07:02 PM   #61
Elite Member
iTrader: (1)
 
Join Date: May 2009
Location: Jacksonville, FL
Posts: 4,685
Total Cats: 216
Default

Quote:
Originally Posted by hustler View Post
The K engine out of the CRV is wildly different from the one in the TSX.
Its basically the CRV motor with more compression and a K20Ax Head.
The TSX motors are not super common which is why most people do K20/K24 hybrids using CRV bottom ends.

I wouldnt say its wildly different. They both have that wonderful 1.54:1 Rod Ratio. Im sure it will be super awesome at 10k rpm.
Full_Tilt_Boogie is offline   Reply With Quote
Old 03-18-2013, 07:11 PM   #62
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,323
Total Cats: 1,343
Default

While the potential for big boost numbers of the K or F swap is appealing to a (vocal) minority, there's a legion of folks who are ready to build ~200whp N/A cars with junkyard longblocks and bolt ons.
emilio700 is offline   Reply With Quote
Old 03-18-2013, 07:35 PM   #63
Elite Member
iTrader: (13)
 
Join Date: Dec 2006
Location: Taos, New mexico
Posts: 5,703
Total Cats: 237
Default

I just hope this becomes a thing. I want a goddamn k20 miata, lol.
Fireindc is offline   Reply With Quote
Old 03-18-2013, 07:38 PM   #64
Senior Member
iTrader: (1)
 
Join Date: Mar 2008
Location: Cromwell CT
Posts: 1,107
Total Cats: 48
Default

Quote:
Originally Posted by emilio700 View Post
While the potential for big boost numbers of the K or F swap is appealing to a (vocal) minority, there's a legion of folks who are ready to build ~200whp N/A cars with junkyard longblocks and bolt ons.
yeah i think if this becomes a reality, it will be the base for my next daily driver.
ctdrftna is offline   Reply With Quote
Old 03-18-2013, 07:51 PM   #65
Supporting Vendor
 
KMiata's Avatar
 
Join Date: Sep 2012
Posts: 444
Total Cats: 145
Default

Quote:
Originally Posted by Full_Tilt_Boogie View Post
Its basically the CRV motor with more compression and a K20Ax Head.
The TSX motors are not super common which is why most people do K20/K24 hybrids using CRV bottom ends.

I wouldnt say its wildly different. They both have that wonderful 1.54:1 Rod Ratio. Im sure it will be super awesome at 10k rpm.
Fun k24 fact for Miata folks. CRV k24a1 head flows as well as a type S head, and a bit better than a TSX head... Most 300+ whp K motors are CRV long blocks with high comp pistons, ported head, and a VTEC killer cam setup. Really a basic motor build, ready to give you 300whp and over 200wtq from 3500 rpm and up.

This may or may not be the plan down the road....
KMiata is offline   Reply With Quote
Old 03-18-2013, 08:06 PM   #66
Elite Member
 
Join Date: Oct 2011
Location: OKC, OK
Posts: 2,655
Total Cats: 76
Default

Quote:
Originally Posted by emilio700 View Post
While the potential for big boost numbers of the K or F swap is appealing to a (vocal) minority, there's a legion of folks who are ready to build ~200whp N/A cars with junkyard longblocks and bolt ons.
Yes. This.

I wonder when they expect to have a kit done. My 1.6 has started the "death wobble" of the crankshaft pulley.
z31maniac is offline   Reply With Quote
Old 03-18-2013, 08:12 PM   #67
Senior Member
 
Join Date: Feb 2007
Location: Aliso Viejo, CA
Posts: 799
Total Cats: 175
Default


TTB Miata for 2014:
K swap
Xida
GTC 250
225/45 A6

......
doward is offline   Reply With Quote
Old 03-18-2013, 08:15 PM   #68
mkturbo.com
iTrader: (24)
 
shuiend's Avatar
 
Join Date: May 2006
Location: Charleston SC
Posts: 13,778
Total Cats: 1,106
Default

Quote:
Originally Posted by magicdc2 View Post
Fun k24 fact for Miata folks. CRV k24a1 head flows as well as a type S head, and a bit better than a TSX head... Most 300+ whp K motors are CRV long blocks with high comp pistons, ported head, and a VTEC killer cam setup. Really a basic motor build, ready to give you 300whp and over 200wtq from 3500 rpm and up.

This may or may not be the plan down the road....
The real question is what sort of engine management do I need to do the K swap? Will a MS3X be able to run it properly? Or will we have to swap over some other Honda ECU and run hondata or some sort?
shuiend is offline   Reply With Quote
Old 03-18-2013, 08:43 PM   #69
Senior Member
iTrader: (1)
 
Join Date: Mar 2008
Location: Cromwell CT
Posts: 1,107
Total Cats: 48
Default

it will use hondata k-pro from what i have read.
ctdrftna is offline   Reply With Quote
Old 03-18-2013, 08:49 PM   #70
Junior Member
 
Join Date: Oct 2009
Location: Anaheim hills, CA
Posts: 76
Total Cats: 4
Default

Ah.. I made a thread inquiring about this awhile ago. Very cool to see this is still happening. I would love a k24 miata. Not too hard to get 300whp N/A out of them. If the kit comes in cheap enough this could be game changing for miatas.

Hell, strap a c38-91 rotrex to a stock k24 and enjoy 500whp+ without even cracking the block open.

I wonder if there will be any weight savings? As cool as this is I wish a MZR swap kit would come out in a similar fashion. Can throw together a 2.5l really cheap, keep it in the mazda family, and they can make great power.
1vicissitude is offline   Reply With Quote
Old 03-18-2013, 08:53 PM   #71
Senior Member
iTrader: (5)
 
Join Date: Sep 2009
Location: Lompoc, CA
Posts: 579
Total Cats: 12
Default

I don't see any reason why MS wouldn't be possible. K pro is an awesome ecu in that it retains obd2, can output readiness codes and is pnp for Hondas. But other than that, it doesn't do anything magical to make the car run any differently than MS.
baron340 is offline   Reply With Quote
Old 03-18-2013, 09:36 PM   #72
Junior Member
 
Join Date: Nov 2010
Location: Chicagoland
Posts: 160
Total Cats: 2
Default

Quote:
Originally Posted by triple88a View Post
Well we gotta see how much the kit will cost guys, all and all this might be even less than 1k in a kit + the money for the motor/ecu. Definitely a lot less than the 15/20k for a v8 swap.
Less than 1k? not that cheap.

I'll break it down. How I'd do it and relative cost.

flywheel -$500 - clutch masters
adapter plate - $200 -
subframe - custom - 500-1k maybe what they would charge.
oil pan - + baffles - I'd likely do a custom baffle setup.
harness - custom - few hundred at least
header-custom-could do a s2000 with a k20 flange might be cheapest option
intake manifold-custom $$$ - unless you could do the s2k with adapter plate
engine-k24a1-$850 k24a2-$1300
Kpro - $1000

To make this affordable won't be easy but if you can weld or fab like myself only thing I'd need is the flywheel and maybe the adapter plate.

Trans needs to be kept in mind the 5spd limit is about 190-200tq IIRC if you build a serious k you will need a 6speed.
natedawg is offline   Reply With Quote
Old 03-18-2013, 09:56 PM   #73
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,323
Total Cats: 1,343
Default

Quote:
Originally Posted by doward View Post

TTB Miata for 2014:
K swap
Xida
GTC 250
225/45 A6

......
Or maybe

ST3 Miata
280whp K24 on E85
Xida triples
225/45 A6's
GT-250
emilio700 is offline   Reply With Quote
Old 03-18-2013, 10:23 PM   #74
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,323
Total Cats: 1,343
Default

K5
emilio700 is offline   Reply With Quote
Old 03-18-2013, 11:34 PM   #75
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 9,131
Total Cats: 598
Default

Quote:
Originally Posted by natedawg View Post
Less than 1k? not that cheap.

I'll break it down. How I'd do it and relative cost.

flywheel -$500 - clutch masters
adapter plate - $200 -
subframe - custom - 500-1k maybe what they would charge.
oil pan - + baffles - I'd likely do a custom baffle setup.
harness - custom - few hundred at least
header-custom-could do a s2000 with a k20 flange might be cheapest option
intake manifold-custom $$$ - unless you could do the s2k with adapter plate
engine-k24a1-$850 k24a2-$1300
Kpro - $1000

To make this affordable won't be easy but if you can weld or fab like myself only thing I'd need is the flywheel and maybe the adapter plate.

Trans needs to be kept in mind the 5spd limit is about 190-200tq IIRC if you build a serious k you will need a 6speed.
Right and what will you buy directly from the vendor? The plate and the clutch along with the directions? The rest is DIY.
triple88a is offline   Reply With Quote
Old 03-19-2013, 02:54 AM   #76
Newb
 
Join Date: Nov 2011
Posts: 11
Total Cats: -1
Default

This definitely interests me. This kit becomes a reality, I'm in for one.

Will be following this thread. Something about N/A power turns me on, I respect the F/I, but it just doesn't tickle me the way N/A does.
Wonko_The_Sane is offline   Reply With Quote
Old 03-19-2013, 11:06 AM   #77
Supporting Vendor
 
KMiata's Avatar
 
Join Date: Sep 2012
Posts: 444
Total Cats: 145
Default

Quote:
Originally Posted by Wonko_The_Sane View Post
This definitely interests me. This kit becomes a reality, I'm in for one.

Will be following this thread. Something about N/A power turns me on, I respect the F/I, but it just doesn't tickle me the way N/A does.
Thanks guys for all the positive feedback. We are pretty excited. Made some good progress last night on the car.

I think Emilio hit the nail on the head - Its all about 200+whp out of a stock junkyard motor. I paid $1000 for my TSX motor in my integra, put some cams in it, and it makes 247whp, 192wtq, revs to 8200rpm, with tons of low and mid range grunt.

If it blows 5 years down the road, oh well, I will buy another. Engines are consumables, so big cheap power is a win, even if it cost some money to make the conversion.
KMiata is offline   Reply With Quote
Old 03-19-2013, 11:20 AM   #78
Elite Member
iTrader: (4)
 
Join Date: Sep 2006
Location: Charlotte, NC
Posts: 3,051
Total Cats: 7
Default

Quote:
Originally Posted by Full_Tilt_Boogie View Post
lmao


The F is a better engine, hands down. The only reason anybody thinks otherwise is because theyve been influenced by honda-tech group think.

I remember when a large portion of the Honda community though the K series was trash, because when it came out it was quite lame, but also because it was different and because it couldn't be tuned with a trusty chipped OBD-I ECU.
You're like a broken record with this ch*t.

Ughhghgh
Efini~FC3S is offline   Reply With Quote
Old 03-19-2013, 11:42 AM   #79
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,196
Total Cats: 2,583
Default

FTB: a lone K hating crusader in a K loving world.



Drove the TSX today just for kicks. Seriously: the torque curve this thing produces would actually be a ton of fun in a miata.

I popped the hood yesterday and was sizing everything up. IMHO this isn't going to be a very easy swap. At least it looked like a PITA to me with all the bells and whistles bolted to it. (though I bet you guys will delete nearly all the accessories)
18psi is offline   Reply With Quote
Old 03-19-2013, 11:42 AM   #80
Elite Member
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,485
Total Cats: 248
Default

This swap sounds pretty slick for the reasons the OP mentioned, mild turbo BP power with honda reliability and RPM, lighter weight than V8 (or BP & turbo) without the additional requirements of trans/driveshaft/rear diff upgrades. The same reasons the NA Mazda K series swap kit is a great idea, which should be cheaper and would be the same amount of work except you can use the original subframe if needed. But this honda option will give you the benefits & complications of 20 years of valve control advancement.

TurboTim is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
NEW-Wiseco Piston, K1 Rods, Supertech Valves & Spring/Retainer, TB&C pedals Rudes333 Miata parts for sale/trade 17 11-05-2015 02:16 PM
3rd Time's a Charm...hopefully. zephyrusaurai Meet and Greet 2 09-28-2015 11:59 PM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 11:22 AM
starting issue Johnny Tater Engine Performance 3 09-23-2015 07:10 PM
Foreign powered NB for NASA ST3 and/or E0 d k Race Prep 44 09-15-2015 11:59 AM


Tags
k series swap, k20, k24, vtec_yo

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:40 AM.