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Discussion Starter · #541 ·
Well... I'm taking a break on doing any mods to Godspeed. I have a couple things planned but those are being put on the back burner while I finish working on my Mustang. My engine is finally done and shipping out to the shop this week. What you see here is a fully built 2.3L 4 cyl that will be paired up with a dual ceramic ball bearing turbo to make around 500 HP on E85. The end goal is a 500 HP capable 4 cyl Mustang that will also serve dual purpose as a 30 MPG highway cruiser.
 
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Discussion Starter · #543 ·
What year mustang is it going into?

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It's a 2017 Mustang. I blew up the stock 2.3 motor so I'm putting in the built one so it never happens again.
 
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Well... I'm taking a break on doing any mods to Godspeed. I have a couple things planned but those are being put on the back burner while I finish working on my Mustang. My engine is finally done and shipping out to the shop this week. What you see here is a fully built 2.3L 4 cyl that will be paired up with a dual ceramic ball bearing turbo to make around 500 HP on E85. The end goal is a 500 HP capable 4 cyl Mustang that will also serve dual purpose as a 30 MPG highway cruiser.
I like your optimism. It started as a 300hp, 30mpg pump gas cruiser. What all has been done to it that will allow it to make 200 hp more and still get the 30 mpg running on fuel that is notoriously known for worse mileage?
 

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Discussion Starter · #545 ·
I like your optimism. It started as a 300hp, 30mpg pump gas cruiser. What all has been done to it that will allow it to make 200 hp more and still get the 30 mpg running on fuel that is notoriously known for worse mileage?
It's getting an upgraded dual ceramic ball bearing turbo and the entire fuel system has been upgraded. I'll be hitting somewhere around 30+psi boost with my 19psi wastegate. I already have a full exhaust/downpipe and intake on the setup. As long as I stay out of boost the 2.3 engine is pretty decent at maintaining 30+MPG. Those that go duel fuel end up with lower MPG so I opted to stick with just upgrading the DI fuel system. I'm pretty sure my city milage will suffer a bit with this build but highway MPG should stay pretty consistent. I'll probably make low 400's on 93 pump which is where I'll get my 30MPG. E85 will get me in the low 500's but I'll see lower MPG.
 
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Discussion Starter · #546 ·
Finally got my Mustang towed to the shop so i was able to clear a spot in my garage to park the CRZ. should take 2-3 weeks to finish my Mustang then i can continue on the path to a 400 HP 30MPG highway cruiser.
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Discussion Starter · #547 ·
More parts for the 16. I'm adding a K series 1 way LSD. Should make for a more engaging drive on twisty roads.
 
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Discussion Starter · #549 ·
Que? How does that work? K series has 27 spline inner CV joints while the CR-Z uses 25 spline.
I've heard others say a K20 LSD will drop into a CRZ. Honda sells an LSD for the CRZ as an HPD accessory BTW...
 

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Bearings are the same and they are both a 10 bolt ring gear. However 10 bolt ring gear does not mean same ID or bolt circle. And for sure the spline counts are different. K series inner joints are monsters when put next to CR-Z parts.

Well now I am not sure, maybe they are 27 spline on a smaller joint? Looking at the part number for the 2016 CR-Z differential it is the same as the 8th gen Civic non SI. And those are all showing 27 spline inner joints on the after market halfshafts.

Wavetrac lists an LSD for K series and CR-Z but when you go to the details page on the part number the CR-Z is not listed.

I think I still have a 27 spline half shaft from a 9th gen SI laying around. I will have to go see if that slips in the CR-Z trans I have. That would be really interesting, but still not a direct replacement as the outer is 28 spline.
 

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Son of a biscuit. 27 spline from a 9th gen SI (K24Z7) slots right in and locks on the CR-Z transmission.

Huh, I guess I assumed the smaller CV was also a smaller spline.

Toss in some 28 spline hubs and you have a beefy halfshaft upgrade. Or a way around rare CR-Z shafts.
 
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