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Author Topic: Who's gonna be the first to swap in a KL V6?  (Read 32305 times)

Gaz

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #30 on: May 24, 2018, 11:06:41 AM »

Who's gonna have the first V6 Capri? It's now a pretty common swap on the BF 323 (the same chassis we are built on) so it should work for us...
IMHO… I wouldn’t call a KL swap into a BF chassis common from my research, I can easily count the amount of documented swaps on one hand…LOL


As for tranny
The Probe and the MX3 both have a final ratio of 4.39. The MX6 and 626 come with a 4.1 and they all have the same identical short 3rd-5th gearsets.
I’m not a fan of the 4.39 ratio in my Probe and think it would suck in the Capri due to the fact that our tires are smaller in diameter then the Probe and MX3.  It’s too low of ratio for traction in 1st and too short of a 2nd gear, while 5th gear would have me running over 4K rpm down the freeway.

If you’re going to do a differential swap to get the V6 to 26 spline outputs to use the XR2 axles, I wouldn’t tear apart a good XR2 tranny for sourcing a differential. It would be easier and cheaper to get a 97+ Escort tranny and swap the shafts and differential into the V6 tranny. The 98+ Escort ZX2 have same ratios as the V6 from the MX6/626, while the 97+ Escort seden has a 3.85 final and same 1st-4th gear as an XR2, but with a nicer .717 5th.

The thought of shoehorning in a K8 and turbo intrigues me. If I'm reading correctly, It won't mate up to the XR2 tranny without an adapter plate? I'm assuming this will probably create clearance issues at the corners of the strut towers, framerails, etc...
After getting my KL and tranny and doing various measurements and stuff, an adaptor plate to the XR2’s tranny won’t work. The 4 cylinder tranny bellhousings put the starter on the engine side and that won’t work with the wider V6 block and it's exhaust manifolds. Plus the added thickness of an adaptor plate also won’t help with the clearance of the KL’s front cam pulley and passenger side headlight bucket.

Now, looking at a 94 Probe G5M-R, it looks like the starter mounts right about where the stock XR2 turbo inlet would be. So the best way to make this work is to use the KL, the G5M-R, the XR2 Diff and axles, as well as BG spindles? Holy hell, and that's assuming you'd still have to get creative with plumbing as it is, not to mention the harness grafting...
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chrispoe

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #31 on: May 25, 2018, 10:21:40 AM »




The BG rear suspension will not be a simple direct swap to a BF. I've only heard of 2 people that have successfully completed the conversion.
The lateral arms on the BG are longer and the trailing arm's forward bushing is larger too so it won't just bolt onto the Capri's mounting point. Another issue the people that done this have mentioned is that you will need adjustable coilover setup. I'm not sure if this is due to ride height or strut/spring clearance issues.

The only performance benefit would be the one inch larger rotor. It would give you about a 15% stronger ebrake, but when it comes to regular braking it would be considerably less of an improvement (if any at all) due to the front brakes doing most of the work.

IMHO...Don't bother with BG knuckles. The build quality/reliability is superior to the BF knuckle, but handling/performance is worse. I only did the swap to see how they actually would perform if I used them for my crazy BG/GE frankenstein knuckle creation.



Now, looking at a 94 Probe G5M-R, it looks like the starter mounts right about where the stock XR2 turbo inlet would be. So the best way to make this work is to use the KL, the G5M-R, the XR2 Diff and axles, as well as BG spindles? Holy hell, and that's assuming you'd still have to get creative with plumbing as it is, not to mention the harness grafting...

If you use the 26 spline differential and the XR2 axles, you use the stock Capri knuckles.

The plumbing isn't too bad, the heater hose connect right up, but the KL's coolant exit is on the passenger side and will either need to routed under the headlight bucket or back to the firewall and ran to the driver side.

As for wiring, use the KL's charger/starter harness and the engine harness too. You only have to connect about 8 wires or so to make it run. In fact wiring in a KL setup is less work then BP setup...LOL

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Gaz

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #32 on: June 27, 2018, 09:00:01 AM »

Well, I've got a deployment coming up, through which my 92 will be going to have a Razzi Kit installed after body repair/rust removal/respray/un-cunting in general, heat extractors fabr, flaring fenders, roll cage retrofit...Might as well hand it off to my local custom shop and get them to stab in the KL with a tiny turbo, fifth gear swap, bigger sway bars...etcetra. It'll be hopefully something unique and amazing by the time I get home.
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greywolf27030

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #33 on: June 27, 2018, 06:52:01 PM »

Sounds really ambitious, good luck with it and take care till you get back in the world.

Jack Byrd
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Jack Byrd

Gaz

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #34 on: July 13, 2019, 04:43:35 PM »

If anybody hasn't done this...I might do it with my deployment money. we'll see, but it really would be dopenstien to do the vj14 on a KL. On just wastegate pressure, it should move out quite nice.
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Rocketman

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #35 on: July 14, 2019, 02:50:21 PM »

The VJ14 is way, waaaaaay too small for the KL. It will literally choke the engine.
Turbo sizing & selection is very important
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Gaz

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #36 on: July 15, 2019, 08:00:22 PM »

Well, I'm just thinking of turbos that I will have on hand. I do have an EVO 3 dish Chinese turbo that might be better for the extra .9 L of displacement, although the T-bird hybrid turbo that I have will probably also choke the engine. I think the Chinese turbo I have is .63 AR with a T3 flange, I don't know what else really about it would make it work or not.
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slowbird

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #37 on: July 15, 2019, 08:11:27 PM »

How about TWO turbos?  ;)
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Rocketman

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #38 on: July 16, 2019, 03:10:32 PM »

Well you gotta get the KL in there first :D
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1.8L Turbo All Wheel Drive Capri... the "GTXR2"


Gaz

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #39 on: July 16, 2019, 04:12:52 PM »

How about TWO turbos?  ;)

I want to retain some form of traction, you walnut. Hahaha!
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Gaz

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #40 on: July 23, 2019, 09:11:08 AM »

Another candidate aside from the KL is the KFZE. Jdm, harder to come by, but supposedly has the strongest composition, what with forged rods and all...
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chrispoe

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #41 on: July 24, 2019, 10:27:01 AM »

All K series engines came with forged cranks and rods. The KLDE\KFZE have the same rods and crank as the K8 which are no stronger than the KLs. If anything, the KL would be stronger with it’s larger crank journals and slightly shorter rods to accommodate the longer stoke of the crank.
The only K series engine that got stronger rods was the KJ-ZEM which was the 2.3L supercharged miller cycle engine found in the Millennia S.

IMHO, the KF engine should have come in the MX-3 instead of the K8. The KFs were essentially debored and destroked KLs that also used the KL heads unlike the K8 that had heads with size reduced ports and valves. The money Mazda spent to design and build the K8 was a complete fail, hence why the K8 was only available for a few years.
I would have to give props to somebody swapping a KF due to the rarity factor, but at the same time question why they didn’t go with KL with more power and more upgrade options. The KL can be built to handle 400-500HP for under a thousand bucks, the KF would cost thousands.
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Gaz

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Re: Who's gonna be the first to swap in a KL V6?
« Reply #42 on: July 24, 2019, 02:25:44 PM »

I see. It is exceedingly difficult to find reliable information on them, apparently.
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