Performing Honda K24a3/AST5 6spd Conversion

More wiring. Needed to clean it all up again with the modded window switch location, and the re-wire for the older style switches.

The issues I needed to resolve - ambient temp gauge resets when directionals are operated. Illumination for extra gauges didn't work. Cluster idiot light flicker when heater valve actuated (fed from orange 15 (hazards, etc..) - I noticed that the factory wiring piggybacks the orange feed all over the place, so the idea was to offload that circuit.

PXL-20201203-171830479.jpg


To resolve the voltage drop to the ambient. temp gauge, I added more switched power (15) sources - used the pink and purple-black wires behind the console (30) to provide feed to the relays, which in turn feed the gauges and a couple extra switches I've added. Used one of the orange (15) piggy-backed feed wires to trigger the relays. That should stabilize the current. EDIT - purple black is NOT (+15), it is tied to the ground circuit for flashers, AC relay, etc.

PXL_20201203_222650345.jpg


Tidied up the bulb holders for hazard & defrost.

PXL_20201203_222558647.jpg


PXL_20201202_212112854.jpg
 

Attachments

  • PXL_20201203_171830479.jpg
    PXL_20201203_171830479.jpg
    191.4 KB · Views: 115
Last edited:
Odds & ends. Charge indicator lamp wan't illuminating with key on - that turned out to be the connector at the alternator - took awhile as the wire goes back to the EMS and then loops forward, through the bulkhead & to the cluster. Oil pressure gauge not registering - have to pull the cluster again, the wiring to the dash is intact.

Had to install replacement speakers - the mount tabs snapped off in the accident. I took the ones (6.5" + tweeter) from the doors in the S40 parts car before I junked it. Not fussy about the cosmetic aspect.

PXL_20201205_213233259.jpg


PXL_20201205_213245070.jpg


IMG-20201214-083433.jpg
 
Last edited:
I cut a hole in the sheet metal large enough to get the magnet through and used particle board between the carpet and sheet metal to add a bit more depth.
 
I cut a hole in the sheet metal large enough to get the magnet through and used particle board between the carpet and sheet metal to add a bit more depth.

There is no water passage in that outer area in the rain? I didn't think that was a dry area.
 
Put the limiter (EMPI 12") straps in today. 7/16-20 seat belt bolts used to retain them to the control arms where I had the sway bar end links mounted previously. Top bolted through the support web, with a second skin added on the inside, cut from the parts car.

EDIT: they are needed to prevent stressing the Honda CV's when the control arms are not attached to the struts for servicing. With stock struts they would be needed just to prevent damage in normal operation.

PXL_20201207_214853218.jpg
PXL_20201207_214906026.jpg
PXL_20201207_220643868.jpg
PXL_20201207_220732103.jpg
 
Last edited:
how do they work Hussein, why are they needed?

I forgot to include that information - they are needed to prevent stressing the Honda CV's when the control arms are not attached to the struts for servicing. With stock struts they would be needed just to prevent damage in normal operation.
 
  • Like
Reactions: NEG
Put the limiter (EMPI 12") straps in today. 7/16-20 seat belt bolts used to retain them to the control arms where I had the sway bar end links mounted previously. Top bolted through the support web, with a second skin added on the inside, cut from the parts car.

EDIT: they are needed to prevent stressing the Honda CV's when the control arms are not attached to the struts for servicing. With stock struts they would be needed just to prevent damage in normal operation.

View attachment 39483View attachment 39484View attachment 39485View attachment 39486
I am so watching this thread. I almost did the same thing for the same reason. the driveshaftshop (where I got my shafts) said I am ok at the angle I am at, but ot me it seems too far when unloaded.

Odie
 
I am so watching this thread. I almost did the same thing for the same reason. the driveshaftshop (where I got my shafts) said I am ok at the angle I am at, but ot me it seems too far when unloaded.

It's a pretty sharp angle for sure. The Bayless coil overs make it better with less droop due to shorter struts, but it's still a bit spooky.
 
Futzed today. Took the stock intake cover & modded it to fit. Made a standoff on the r/s intake runner flange to support it. Good enough.

PXL_20201208_200116851.jpg
PXL_20201208_213746287.jpg
PXL_20201208_213756747.jpg
 
Working on the splash shield / air guide

Pre accident
IMG-20200326-164151.jpg


post accident

IMG-20200502-192138.jpg


adding sections to extend coverage on the passenger side, and deflect air below subframe

IMG_20201210_172042.jpg
 
Dash is out, wiring is another mess to resolve. Had to cut several wires I had added over the years, improperly routed inside the metal dash supports.

IMG_20201212_151017.jpg


Cluster wires I had to cut -
gn =coolant gauge,
wh-bn = chk eng,
wh-bk = eBrake,
y-r = illumination

IMG_20201212_175748.jpg


All the stuff on the right needs to be relocated so the wiring comes up through the proper location next to the center vent

IMG_20201212_175520.jpg


undecided on whether to rewire all the stalk & ignition switch connectors - I have cut several and separated over the years - everything left works just fine, so I think I'll leave it be for now

IMG_20201212_175529.jpg


Put the center duct and hoses back in after cleaning to make sure wiring is routed appropriately. Hoses need to be ovaled to allow modded cluster to recess without pressing the cluster harness into it, and to clear the stereo in the glovebox on the right

IMG_20201213_182126.jpg


Some extra wires to resolve/repurpose - used to go to original cluster bulbs
vio-wht = flasher
y-r = hazard
pnk-bk = lambda
wh-r = seat belt relay (A7 or A8 on fuse/relaybox)
bk = (31)

IMG_20201213_175201.jpg


Took the dash & heater box out of the parts car - weather was in the 50's today, so I took advantage of it

IMG_20201213_123930.jpg


Saved some of the dash section wiring - it's handy to have for color-matching.

IMG_20201213_140205.jpg


HVAC Mid section housing is too damaged to save (EDIT, fixed it) - broken is several places from earlier removal at some point in it's life - I just want to have these as backups incase my casing has any issues

IMG_20201213_140259.jpg


Stripped & cleaned all the ducts and box sections - needs a new sheet of foam here

IMG_20201213_182613.jpg
IMG_20201213_182654.jpg
 
Last edited:
There is no water passage in that outer area in the rain? I didn't think that was a dry area.

It's not dry - it's somewhat part of the wheel well, although there is a plastic piece to keep water from getting in there.

I'd direct you to @Rodger 's really good solution.


It is a very clever solution. I think I'd omit the "foam blanket" as it would trap moisture. For Rodger it probably doesn't matter as I think he had his inner fender / wheel wells lined with 'Rhino Liner' but the concept is great: 4" speakers with covers. All replaceable. If your speakers crap out, just replace 'em!

I'm doing the same. Radio/music etc not that important when driving in my opinion. This is NOT a commuter car for me so the radio doesn't matter as much. Nice on a road trip tho.
 
Last edited:
In my car, that area behind the kick panels has always been bone dry. I think the 74 uses a metal panel between the wheel well and that cavity. I read Roger's install and would concur with Darin about the foam blanket, especially if water can get in. If anything, you'd probably want some sound deadening material to make it behave as an "infinite baffle". I cut roughly the same size holes in the metal as Roger but put a particle board baffle in front of the metal. That easily allowed the use of 6.5" speakers instead of 4". I've got some 6" x 9" three way speakers that I might try in there some time.

1974 X19 right kick panel speaker.jpg
 
It's not dry - it's somewhat part of the wheel well, although there is a plastic piece to keep water from getting in there.

I'd direct you to @Rodger 's really good solution.


It is a very clever solution. I think I'd omit the "foam blanket" as it would trap moisture. For Rodger it probably doesn't matter as I think he had his inner fender / wheel wells lined with 'Rhino Liner' but the concept is great: 4" speakers with covers. All replaceable. If your speakers crap out, just replace 'em!

I'm doing the same. Radio/music etc not that important when driving in my opinion. This is NOT a commuter car for me so the radio doesn't matter as much. Nice on a road trip tho.

Many thanks for the link - I didn't recall that aspect of his build at all.

My arches were closed off as part of the Dallara install - so no water will be pushed in from the well - for some reason I thought water/rain etc., could travel through there from above, but there is no reason it would, now I think about the cowl tray, A pillar construction...

I can cut holes for the magnets - these Volvo speakers are pretty large - they also have an additional tweeter that normally mounts high in the door panel - I can add those to the dash so they bounce off the windshield (like earlier gen P80 Volvos) .

I almost never listen to the radio, I've spent too many of the years I've been driving this in 'tuning' mode to bother with music. As you say, for road trips it is nice & that's about the only reason for me to have one :D

Dallara-Wheel-Arches00006.jpg






I
 
Back
Top