Woah this took a turn I wasn't expecting. This is gonna be AWESOME!
Abdul's K20r-swap thread using civic si 07-11 ecu+flashpro
7
Hi all.Some of you already know me and the car i own.Yes its a JDM Honda Fit hybrid RS 2012.it was CVT with paddle-shifts.It has(had) LEA-ZF1 engine same as crz.
I did turbo it and had a lot of fun but although my turbo and injectors etc had more potential to up boost but cvt was slipping beyond 190 hp 180tq.so i was little disappointed that i cant upgrade clutch etc but i was satisfied and having lot fun.But (LOL there is always a but
) due to bad quality fuel engine got blown.Although i did find new engine and got it installed the next day but i was wondering what if same tragedy repeats itself?
Here is the thread which tells in detail the whole story if you have time
http://www.crzforum.com/forum/off-t...o-bolt-kit-crz-fit-hybrid-rs-honda-l15a7.html
so i decided to make plunge and go k-swap.as labour is cheap(200$) here and importing JDM k20r engine is also not so expensive.4500$ including shipment.
Some may argue why i am posting in a CRZ forum? well it is a crz in shape of honda fit hybrid and i will be using HAsport mounts for CRZ and my ecu pinout is exactly same as 2012 crz.so here goes.
As fewer k-swaps have been done this way.i.e civic si wiring+ crz wiring combined and using flashpro.
Most swaps have been done using flash-pro and k20 wiring harness modified.
The benifits of civic si ecu+flashpro are
Single ecu
Working OBD-II
Retains drive by wire feature and same accelerator paddle
keeps ecu in engine bay
Dash clusters works fine
VSA,traction control ABS etc work
Electronic power steering works.
etc etc
i plan on using short ram intake as fit has a duct which leads cold air directly to air filter location.
Headers with cat delete
73 mm RX8 throttle body(its direct bolt on and has DBW feature)
2.5 inch exhaust with vibrant ultra quit resonator and megan racing N1 4"muffler
HAspot mounts for crz
civic si ecu plus complete wiring harness
hondata flash pro
Estimated Hp near 250.(k20r comes stock 220)
Estimated new vehicle weight 1050 kg(previous 1140kg,due to IMA and batteries)
ok enough said.lets go to build.its Day 2 when i am making this thread.As our experienced electriction has shifted to Dubai so we have new electricion.so i am little worried about wiring part but i will keep you guys posted and may ask some things too.
The engine JDM k20r with LSD and 6 Speed MT
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Bye bye IMA (i kinda feel said for it)
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Preparing for hole in firewall for clutch paddle
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Mount
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Engine bay waiting for new engine.the CRZ ecu A plug has been retained.civic si ecu B and C plugs will be used for engine and dash will run via crz A plug
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Trial to see mounts fitment
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Trial 2
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I did turbo it and had a lot of fun but although my turbo and injectors etc had more potential to up boost but cvt was slipping beyond 190 hp 180tq.so i was little disappointed that i cant upgrade clutch etc but i was satisfied and having lot fun.But (LOL there is always a but
) due to bad quality fuel engine got blown.Although i did find new engine and got it installed the next day but i was wondering what if same tragedy repeats itself? Here is the thread which tells in detail the whole story if you have time
http://www.crzforum.com/forum/off-t...o-bolt-kit-crz-fit-hybrid-rs-honda-l15a7.html
so i decided to make plunge and go k-swap.as labour is cheap(200$) here and importing JDM k20r engine is also not so expensive.4500$ including shipment.
Some may argue why i am posting in a CRZ forum? well it is a crz in shape of honda fit hybrid and i will be using HAsport mounts for CRZ and my ecu pinout is exactly same as 2012 crz.so here goes.
As fewer k-swaps have been done this way.i.e civic si wiring+ crz wiring combined and using flashpro.
Most swaps have been done using flash-pro and k20 wiring harness modified.
The benifits of civic si ecu+flashpro are
Single ecu
Working OBD-II
Retains drive by wire feature and same accelerator paddle
keeps ecu in engine bay
Dash clusters works fine
VSA,traction control ABS etc work
Electronic power steering works.
etc etc
i plan on using short ram intake as fit has a duct which leads cold air directly to air filter location.
Headers with cat delete
73 mm RX8 throttle body(its direct bolt on and has DBW feature)
2.5 inch exhaust with vibrant ultra quit resonator and megan racing N1 4"muffler
HAspot mounts for crz
civic si ecu plus complete wiring harness
hondata flash pro
Estimated Hp near 250.(k20r comes stock 220)
Estimated new vehicle weight 1050 kg(previous 1140kg,due to IMA and batteries)
ok enough said.lets go to build.its Day 2 when i am making this thread.As our experienced electriction has shifted to Dubai so we have new electricion.so i am little worried about wiring part but i will keep you guys posted and may ask some things too.
The engine JDM k20r with LSD and 6 Speed MT
Bye bye IMA (i kinda feel said for it)
Preparing for hole in firewall for clutch paddle
Mount
Engine bay waiting for new engine.the CRZ ecu A plug has been retained.civic si ecu B and C plugs will be used for engine and dash will run via crz A plug
Trial to see mounts fitment
Trial 2
1 - 20 of 28 Posts
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another very impotant thing to consider amout mounts nd transmission
one mount hooks to engine and other two to transmission. and HAsport mounts for CRZ are made in such a way that those will fit only to either DC5(RSX) transmission or civic si (k20z4) transmission.
here is table of compatible transmission with our CRZ HAspot mounts.
![]()
The engine we imported is k20r from Euro R accord.so it has has RBC3 transmission.Luckyly a DC5 transmission is already on its way and arrives in few days.
Meanwhile about wiring.
we have bought complete civic si engine wiring harness .so we wont have to modify any B or C ECU connectors.
Example of wiring we bought.
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B and C connectors will be same.and A connector from CRZ/Fit will be used.
![]()
civic si wiring bolts on all sensors
Except the Crank sensor.its not fitting it.so again luckyly my engine came with its own complete wiring.so we will use connector of that wiring and couple it with civic wiring.
The difference in A connector of civic and crz is very small.just the break paddle position switch which is on A34 on civic and on A13 on crz.so we will have to change just this.
other differenrce are on IMA and paddleshifts and cvt which ofcourse willnot be used.so its again may be 10 min job.
The main important step in wiring will be connecting this from si
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to this from CRZ
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this got some 02 sensor wirings,ignition etc.i will update with pics when wiring is done so that others may benifit from this method and wiring can be done by DIY.
one mount hooks to engine and other two to transmission. and HAsport mounts for CRZ are made in such a way that those will fit only to either DC5(RSX) transmission or civic si (k20z4) transmission.
here is table of compatible transmission with our CRZ HAspot mounts.
The engine we imported is k20r from Euro R accord.so it has has RBC3 transmission.Luckyly a DC5 transmission is already on its way and arrives in few days.
Meanwhile about wiring.
we have bought complete civic si engine wiring harness .so we wont have to modify any B or C ECU connectors.
Example of wiring we bought.
B and C connectors will be same.and A connector from CRZ/Fit will be used.
civic si wiring bolts on all sensors
Except the Crank sensor.its not fitting it.so again luckyly my engine came with its own complete wiring.so we will use connector of that wiring and couple it with civic wiring.
The difference in A connector of civic and crz is very small.just the break paddle position switch which is on A34 on civic and on A13 on crz.so we will have to change just this.
other differenrce are on IMA and paddleshifts and cvt which ofcourse willnot be used.so its again may be 10 min job.
The main important step in wiring will be connecting this from si
to this from CRZ
this got some 02 sensor wirings,ignition etc.i will update with pics when wiring is done so that others may benifit from this method and wiring can be done by DIY.
12
The final word and pics
Ok here are some pics.i will make videos too but will need some one else to record them as it MT now and i cant drive it with on hand now as was before with CVT.
Initially plan was using FD2 manifld but it was touching front grill so DC5 intake was used.
Luckyly FD2 headers were bolton as engine bay in Honda Fit is spacious behing rather than from.
In CRZ which was done earlier in this workshop they had to use custom headers and custom brake booster as engine was touching them behind.so CRZ guys keep that in mind while doing k-swaps.
here is engine bay after swap
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Here is duct which takes cold air direclty to engine bay.Thats the reasonn i pulled air intake toward right with that white cirular wire
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IMA code will always be there
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engine height before
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before was 90 mm,after is 85 mm.so k20 is 5 mm taller in engine bay,very little difference
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Car height before 72 mm
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After 78 mm
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So its 6 mm lower at front
Back height before 195 mm
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after 205 ,so its 10 mm higher
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as we dont have dyno here,so here is virtual dyno of 3rd pull.
its.at end driver shifted into 4th and i was still recording datalog,so thats why it declined at end suddenly
209 WHP and 145 WTQ. i asked the tuner to be extra conservative with tune as some time 91 octane is't available here so that this tune may work with 87 octane
![]()
Finally
COST
The extra cost which was un expected was
AC compressor and its custom bracket.RX8 AC compressor was used as it is smaller in size.
similarly RX8 TB was used as its DBW and is 73 mm.A custom bracket was made to fit it onto manifold.
OEM radiator fan was not fitting as engine bay is so tiny,so we opted for Mishimoto radiator fan which is slim and does the job nicely. to convert into $ just remove two zero's from item prices
![]()
Total cost was near 7700$.
it doest include exhasut work cost which was 100$.
so its near 7800$
Ok here are some pics.i will make videos too but will need some one else to record them as it MT now and i cant drive it with on hand now as was before with CVT.
Initially plan was using FD2 manifld but it was touching front grill so DC5 intake was used.
Luckyly FD2 headers were bolton as engine bay in Honda Fit is spacious behing rather than from.
In CRZ which was done earlier in this workshop they had to use custom headers and custom brake booster as engine was touching them behind.so CRZ guys keep that in mind while doing k-swaps.
here is engine bay after swap
Here is duct which takes cold air direclty to engine bay.Thats the reasonn i pulled air intake toward right with that white cirular wire
IMA code will always be there
engine height before
before was 90 mm,after is 85 mm.so k20 is 5 mm taller in engine bay,very little difference
Car height before 72 mm
After 78 mm
So its 6 mm lower at front
Back height before 195 mm
after 205 ,so its 10 mm higher
as we dont have dyno here,so here is virtual dyno of 3rd pull.
its.at end driver shifted into 4th and i was still recording datalog,so thats why it declined at end suddenly
209 WHP and 145 WTQ. i asked the tuner to be extra conservative with tune as some time 91 octane is't available here so that this tune may work with 87 octane
Finally
COST
The extra cost which was un expected was
AC compressor and its custom bracket.RX8 AC compressor was used as it is smaller in size.
similarly RX8 TB was used as its DBW and is 73 mm.A custom bracket was made to fit it onto manifold.
OEM radiator fan was not fitting as engine bay is so tiny,so we opted for Mishimoto radiator fan which is slim and does the job nicely. to convert into $ just remove two zero's from item prices
Total cost was near 7700$.
it doest include exhasut work cost which was 100$.
so its near 7800$
Thanks.Evey thing work except speedo.coz VSS signal from DC5 trasmission is not compatible with newer gen ECU's.
i have ordered Dakota Digital universal signal converter,but it will take some weeks to arrive.traction control i disabled my self otherwise it applies too much breaks when tyres slip,it kills the fun.
IMA light will be there always
I will make a vid about launching,just figuring out how to mount a camera on dash because while launching it hard to hold a camera in hand and change the gears and control steering wheel aswell
Wow,never occured to me.i will try it.meanwhile dakota device arrived.i will install it in next week
2
Talk about restricted space
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Meanwhile speedo is working now with Dakota device.time to make some launch vids ...
Meanwhile speedo is working now with Dakota device.time to make some launch vids ...
here having some fun
Other car is corolla 3sgt swapped.once VTEC kicked in he had no chance you all know how agressive vtec is on k20R motors
Inside k20 view
Another run
The blue tye R civic is not tyre R.its R18.
Other car is corolla 3sgt swapped.once VTEC kicked in he had no chance
you all know how agressive vtec is on k20R motors1 - 20 of 28 Posts
