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K20/k24 swaps

 
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rossonza
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1993 Toyota MR2 Mk2 Turbo Rev2

PostPosted: Sat May 11, 2019 4:20 pm    Post subject: K20/k24 swaps Reply with quote Reply with quote including images

Has anyone considered or even started this on their sw20 in the UK?

I was looking at engine mounts and adapter plates but the only place I can find them are hux racing who do not ship to the UK typically.

Can anyone recommend anyone elses products?

Cheers
Ross.
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Race Idiot
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1994 Toyota MR2 Mk2 Turbo Rev3

PostPosted: Sat May 11, 2019 9:09 pm    Post subject: Reply with quote Reply with quote including images

I'm pretty sure Hux are the only people who make a proper swap kit for this.

I looked into it but I feel like an NA K20 would feel a bit slow in a 1200kg car. If you wanted to go with turbo it looks like you have to start cutting into the rear bulkhead because the exhaust manifold is on the opposite side to a 3s.

Although I wonder what kind of power you can get out of a K24 without FI

The swap works better in a MKIII I recon

Edit: Looks like you can fit a turbo without cutting if you look at the last page of this
https://www.k20a.org/forum/showthread.php?t=210425

But it looks pretty tight and I feel like you'd want some heat shielding on that back bulkhead
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rossonza
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1993 Toyota MR2 Mk2 Turbo Rev2

PostPosted: Sat May 11, 2019 9:15 pm    Post subject: Reply with quote Reply with quote including images

Race Idiot wrote:
I'm pretty sure Hux are the only people who make a proper swap kit for this.

I looked into it but I feel like an NA K20 would feel a bit slow in a 1200kg car. If you wanted to go with turbo it looks like you have to start cutting into the rear bulkhead because the exhaust manifold is on the opposite side to a 3s.

Although I wonder what kind of power you can get out of a K24 without FI

The swap works better in a MKIII I recon


I've managed to get in contact with hux and I'm sorting a family member bringing the kit back for me in their suitcase from the states. He said they do ship to the UK (although their site says they don't).

For sure n/a would be lower hp and torque. However there would be quite the weight reduction due to k20 being alloy etc and initially no k20 turbo setup.

I've decided on k20 for the rev range/VTEC range. It's about £400 more to purchase but I feel will be worth it.

Just adding up what I'll get for my engine bits and what's required. Luckily me using the cannibal kit and e153 makes life much easier. Also initially.going n/a will help.

You can get 300 out of the k20a2 I'm looking at. And 500 if you boost it.

Also I've seen the turbos fitted near the rear bulkhead. But some go sidewinder above the gap next to the gearbox. So no need to cut the rear bulkhead. That will be my plan.
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Race Idiot
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1994 Toyota MR2 Mk2 Turbo Rev3

PostPosted: Sat May 11, 2019 9:53 pm    Post subject: Reply with quote Reply with quote including images

How much power do K24s make anyway? Part of me likes the idea of a decent NA build.

I didn't realise the blocks were alloy also! So yeah you'd save a bunch of weight over the 3sgte
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rossonza
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1993 Toyota MR2 Mk2 Turbo Rev2

PostPosted: Sat May 11, 2019 9:58 pm    Post subject: Reply with quote Reply with quote including images

Race Idiot wrote:
How much power do K24s make anyway? Part of me likes the idea of a decent NA build.

I didn't realise the blocks were alloy also! So yeah you'd save a bunch of weight over the 3sgte


K24a3 197hp. 171 lb-ft standard.

Yeah exactly. A lot of weight to be saved.
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SonicSW20
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1997 Toyota MR2 Mk2 NA Rev4

PostPosted: Sun May 12, 2019 7:44 pm    Post subject: Reply with quote Reply with quote including images

There's a few Mk3's about, I bet there's a few SW20's around with the swap too.

Race Idiot wrote:
How much power do K24s make anyway? Part of me likes the idea of a decent NA build.

I didn't realise the blocks were alloy also! So yeah you'd save a bunch of weight over the 3sgte


Hux is at ~270whp, but thats a pretty big build with high compression pistons, cams, ITB's etc. I believe they do respond well to bolt ons though which is more budget friendly. I think the K24 really benefits from cams to wake it up a bit.

It's a very interesting swap IMO. Its possible to get an SW20 down to around 1000KG in a pretty stripped out form with the 3SGE, and with the weight saving of a Honda K getting it down to around that will be that much easier. Hux is just under that now, and still has a full interior.
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