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K Swap Knowledge Dump


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#61
CSPCRX

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    • Drives: B Powered 86 CRX SI, 2012 Audi S4, 07 Harley FXST Softail
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Final two parts coming in.

 

went with a Unit2 oil pan. It’s a OEM steel pan that has baffles welded into it.  Much like the one I was going to run but steel instead of an aluminum K20 so you get more ground clearance and durability.  It’s also half the price.

 

finally I sent my TB and intake to King Motorsports to get bored and matched.  The Accord cable TB is 60mm and they said they can open it 2.5-3.0 mm and the manifold will be matched to it.  This should help pick up some power throughout the power band.

 

We have also been talking about installing a 45 degree VTC gear in place of the K24a 25 degree gear.  This also should pick up power across the entire rpm range.

 

Classes are set on peek HP so lifting the curve will be a huge help.


Victor
86 B-Powered CRX SI (SMF Solo2, HPDE-4 NASA & TA-A Time Attack
07 Harley FXST Softail
12 Audi S4

#62
CSPCRX

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Was on Vtec Academy tonight and.Brian again mentioned that he is building a kit that will work on the 84-87 CRX and Civics


Victor
86 B-Powered CRX SI (SMF Solo2, HPDE-4 NASA & TA-A Time Attack
07 Harley FXST Softail
12 Audi S4

#63
CSPCRX

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    • Location:Phoenix AZ
    • Drives: B Powered 86 CRX SI, 2012 Audi S4, 07 Harley FXST Softail
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King called and manifold and TB are done.  They were able to open the TB from 60mm to 64mm along with opening the manifold to 64mm.  They found my TPS was not functioning so while it’s in shipping I will work on sourcing a replacement.  For $240 not bad in my eyes for a mod that will deliver extra power across the entire rpm band.


Victor
86 B-Powered CRX SI (SMF Solo2, HPDE-4 NASA & TA-A Time Attack
07 Harley FXST Softail
12 Audi S4

#64
CSPCRX

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    • Group: 2016 Contributor
    • Location:Phoenix AZ
    • Drives: B Powered 86 CRX SI, 2012 Audi S4, 07 Harley FXST Softail
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Manifold and TB are back and look great.  Just finished trimming the gasket and bolting it all back on the motor.  Blox TPS is supposed to be hear today so that will have to be calibrated once it’s in the car and connected to the ECU.

 

Brian mentioned the swap on Vtec Academy again Tuesday.


Victor
86 B-Powered CRX SI (SMF Solo2, HPDE-4 NASA & TA-A Time Attack
07 Harley FXST Softail
12 Audi S4

#65
CSPCRX

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    • Drives: B Powered 86 CRX SI, 2012 Audi S4, 07 Harley FXST Softail
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Step one on the HASport mounts took place today.  We dropped an 86 CRX SI over a K20 with RSX 5 speed trans for mount mock up.  It’s amazing how well it fits comparing it to the 2nd gen CRX.  Our engine bay is taller and thus really helps.  Another thing I noticed was the K series engine and trans is actually narrower than the B16.  My B16 alternator pulley is up against the frame rail on the drivers side and the trans goes under the frame rail on the passenger side.  The K series actually completely fits between the rails allowing it to sit higher.
Key takeaways at this point are.

 

K20 mounts will not require hood cutting.  Brian was very happy with the motors overall position and not needing to cut bracing or anything on the hood.  Axlwes line up very straight which is great and look to have very similar lengths.

Mounts will be dual height, like many of the other K20/K24, mounts HASPort sells.  This way you can install a K20 or K24, like me.  Plan will be that the K24 will require hood braces to be removed.

 

Passenger frame rail has a bulge on it where the stock EW trans mount is.  This created an issue with the water pump pulley and giving us the clearance we wanted on both sides.  This may require this to be cut out and a flat plate that HASport would supply welded in.  Also found the TPS on the TB was hitting the bar the goes from the bottom of the hood latch to the lower core support.  We this may not be the case on the K24 have to see still.  Overall it looks like you would not be able to use a stock hood latch with the K swap right now.

 

Brian is going to build some brackets based on the measurements we took today.  This will take us to the next step of mounting the motor in the car and confirming everything works.  
 

This where we are so far.  Brian up is good with me sharing and for those following I figured you would want to know.

 

50845081958_faff93e421_c.jpgUntitled by Victor M, on Flickr

50845081943_dd2edc5be2_c.jpgUntitled by Victor M, on Flickr

50845081978_06e22d36a6_c.jpgUntitled by Victor M, on Flickr


Victor
86 B-Powered CRX SI (SMF Solo2, HPDE-4 NASA & TA-A Time Attack
07 Harley FXST Softail
12 Audi S4