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Thanks for checking this thread out. This is a story about a MR2 going to the dark side, hahaha. I love the handling of the mid-engine lay out and would have loved an NSX but prices are out of my reach atm so for now I will play with my MR2.

I use to own a 1992 Prelude w/f22a that I swapped a jdm h22a and 5-speed lsd tranny back in 2004 and was my DD. I also install the SRV leather interior into it.



In late 2007, I ended up trading it in (sorry Prelude) for a Canadian spec 1993 MR2 turbo that needs some work, head gasket leak, paint was horrible, etc.



After a lot of upgrades throught the car, engine work (gen3 conversion+bigger turbo) and new paint job this what it looks like now. Got it tuned and dyno'd at 250 whp @ 18psi on 91 pump gas & meth injection. Not bad but it could be much, much better.





The stock seats were getting old and I found some S2000 seats. I had a buddy fab up some adapter brackets to install the s2000 seats and sliders. Looks very nice and much more comfortable, plus they are 11 lbs. lighter per seat than the stock seats bonus.



I haven't driven the MR2 a lot due to being a single dad raising a little girl and other life priorities. But when I do take it out, it puts a smile on my face. Anyways, a couple of weeks ago the head gasket starting to leak internally again and I got sick of putting any more money into it. I could have gone with the Toyota gen4 3sgte or 2gr swap but I remember how much fun I had with the h22a in the Prelude. So I picked up a 2003 k20a2 that I plan on boosting and using the MR2 turbo tranny (E153) with a adapter kit. More on this later.



This is the usual response I get when I say that I am going to use a k20 motor from the MR2 crowd.



To be continued...
 

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Discussion Starter #2 (Edited)
So my plan is to get 450-500 whp and 400 tq. @ 18-20psi on 93 pump gas or e85. I do a lot of twisty roads and maybe autoX next year so powering out of corners is where I want the k20 to be strong in, I can always change this set up down the road. The aftermarket support for the k20 is huge and much cheaper compared to the 3sgte. I have 95% of the parts needed, I would like to send a shout out to Ken for helping me get some of the parts. I know he is on this forum, but I don't know his screen name.

Here's the list:
-stock K20a2
-replace the valve springs with Supertech dual 95lbs., seats, TI retainers and valve stem seals (have)
-RBC IM with stock k20a2 TB (have)
-thermal gaskets for IM and TB (have)
-1000cc injectors and BWR fuel rail (have)
-BWR Lean exhaust manifold (have)
-meth injection for cooling (have)
-Ktuned goodies (tensioner, swivel water neck, p/s & a/c delete, etc.) (have)
-TracTuff oil baffle and oil pump baffle (have)
-Turbosmart BOV (have)
-5830 turbo (have)
-Southbend stage 2 clutch (have)
-Hux Kswap adapter kit (have)
-Turbosmart WG (have)
-A2W intercooler (have)

The only thing I need to do to the MR2 drive train is beef up the inner cv joints, so I bought a upgrade kit. The E153 tranny is built to handle high power from the factory so bonus again.

The welds on the manifold (T3, 44mm wg) are sexy and Tanner at BWR is very easy to communicate with. I purchased it during their labor day sale with free shipping, ya!





Test fitting the manifold on the k20, I picked up a wrinkle red valve cover from CL locally.
 

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Looking great so far!

The 3sgte is such a heavy engine and terrible head flow.

I almost did an sw20...I owned a 1991 turbo model back in 2000 and really enjoyed it. I went with the zzw30 due to the 2150 curb weight.

01' MR2 K20 swap, crazy mods to come
 

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Arouse the DAMPFHAMMER!
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The Force is with him

This is a story about a MR2 going to the dark side, hahaha.
You bring it to the right sight :D

I love the handling of the mid-engine lay out and would have loved an NSX but prices are out of my reach atm so for now I will play with my MR2.
What about Lotus Elise/Exige? Anyway, I like the MR2 chassis, it was one of the first Siku cars I got when I was 6 years old :heart:

I haven't driven the MR2 a lot due to being a single dad raising a little girl and other life priorities. But when I do take it out, it puts a smile on my face.
Wow man, I raise my hat to you...great you do this project...big big respect!

This is the usual response I get when I say that I am going to use a k20 motor from the MR2 crowd.
LOL :D...they just don't know what they really miss :D

So my plan is to get 450-500 whp and 400 tq. @ 18-20psi on 93 pump gas or e85. I do a lot of twisty roads and maybe autoX next year so powering out of corners is where I want the k20 to be strong in, I can always change this set up down the road.
A more spontanouse load response of a SC'd engine setup for the Serpentines and AutoX wasn't on the table of idea's?

The aftermarket support for the k20 is huge and much cheaper compared to the 3sgte.
Yes indeed. One of the best high revving 4 cylinder inline engines combined with a great aftermarket makes that beauty of engineering art to a phantastic combination.

I am really looking forward to see more of your build.

May the Force be with you man :D

Markus
 

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Discussion Starter #6 (Edited)
Re: The Force is with him

Thanks for the shout out. looking forward for a ride in the beast!!!
For sure Ken, thanks for the parts. I can personally vouch for this seller.

Looking great so far!

The 3sgte is such a heavy engine and terrible head flow.

I almost did an sw20...I owned a 1991 turbo model back in 2000 and really enjoyed it. I went with the zzw30 due to the 2150 curb weight.

01' MR2 K20 swap, crazy mods to come
Agreed, the 3sgte is a boat anchor. The gen3 MR2 is very light next to the Lotus and Miata's. Power to weight on these car is over the top, I would like to see your thread of the build.

Thanks Markus for the thumbs up. I like the versatility of the K-series, it's a great motor hands down. I also looked at the Lotus lineup but here in Canada it is slim pickings. Maybe when the dollar gets stronger again I'll look at the Exige and import one from the US, same goes for the NSX. It's a childhood dream car and I always wanted one.

I was looking into a SC but I am a turbo kind of guy, I like the sounds and rush when the snail wakes up. What I have learned is always have it in the right gear and rpm when going through a corner so you can blast right out of it. Plus I may go to straight line speed in the future and the turbo is interchangeable with different compressors/exhaust wheels.

My little girl is becoming a car girl. She likes daddy's blue car and the truck so much that I had to go buy her matchbox cars so she plays with them. The MR2 will be past down when I am either blind or can not move anymore, but that's not for many more decades.
 

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Re: The Force is with him

Agreed, the 3sgte is a boat anchor. The gen3 MR2 is very light next to the Lotus and Miata's. Power to weight on these car is over the top, I would like to see your thread of the build.
I have not put together a thread about my car on this forum. I suppose I need to do that at some point. Its nothing special yet. Just a full k20z3 swap running n/a for now.

01' MR2 K20 swap, crazy mods to come
 

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Discussion Starter #8
Re: The Force is with him

I picked up the turbo today from a turbo guru. It is a custom 5830 with BB center. It's built for torque and power to redline (8500rpms). The K20 is going to the shop for a couple of days to get Supertech valve springs installed this week. I would have install the springs but it would have taken me about a month to install them and I don't feel confident enough to do it. I will be doing the rest of the build, here is the pictures.







 

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Arouse the DAMPFHAMMER!
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Re: The Force is with him

I was looking into a SC but I am a turbo kind of guy, I like the sounds and rush when the snail wakes up. What I have learned is always have it in the right gear and rpm when going through a corner so you can blast right out of it. Plus I may go to straight line speed in the future and the turbo is interchangeable with different compressors/exhaust wheels.
I see, kind of TC addiction :D. I can understand that, it's the easiest and cheapest way for big power/money numbers and the turbo punch and waste gate sound is similar to VTEC kick in a drivers feeling, which get's sometimes over technical aspects. My universe is just driven by the latter :D.

My little girl is becoming a car girl. She likes daddy's blue car and the truck so much that I had to go buy her matchbox cars so she plays with them.
The Force is with her :D

The MR2 will be past down when I am either blind or can not move anymore, but that's not for many more decades.
Is the MR2 of that endurance quality?

Markus
 

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Discussion Starter #10
Re: The Force is with him

Is the MR2 of that endurance quality?

Markus
Probably not, lol. But with the amount of $$ I'm throwing at it, it better last for a while. That goes with any car, we're just caretakers for them.
 

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Discussion Starter #12
Looks like you're off to a really solid start, this is going to be awesome!

Good luck with the build man.
Thank you, I appreciate the comment. I'm excited to see the end result.

Nothing new to post, engine is at shop getting the valve springs replaced, head gasket and ARP studs installed. Soon the removal of the 3sgte will commence...
 

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Discussion Starter #13 (Edited)
Just an update, been gathering parts for the swap. The old 3sgte comes out next month and I should have the k20 installed by the middle of March. The k20 is at a shop (Garage5) being built with supertech dual springs, valves, wiseco pistons, manley turbo rods, upgraded wrist pins, etc. I also wanted to add that I am going with South Bend clutch stage 2 endurance, a friends has one installed and he highly recommends it compared to the ACT tm1-hdss clutch.

K20 swap kit.










And a picture of a friend's MR2, my truck and my MR2.
 

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Discussion Starter #14
I picked up the k20a2 from Garage5. The motor I picked up was on it's last legs so I'm happy that I got it built right the first time. Below are a few pictures from the builder, check out the stretched timing chain compared to the new one after 180,000kms, which after talking to the builder must be way more kms on it.

I will be updating the thread more often now that I have the motor back. here's a few pictures.









 

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Discussion Starter #15
Started to install MR2 friendly parts for the swap. I broke the thermostat housing when transporting the engine to my house but installed the Ktuned swivel one.





Next up, I needed to install a coolant fill.







Nice shiny parts.



More to come...

 

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Ktuned swivel t-stat is no bueno with big power. Do some searching or maybe someone can chime in on the subject as I don't have specific details... I know it is related to the popets and total flow.

01' MR2 K20 swap, crazy mods to come
 

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Discussion Starter #17 (Edited)
Ktuned swivel t-stat is no bueno with big power. Do some searching or maybe someone can chime in on the subject as I don't have specific details... I know it is related to the popets and total flow.

01' MR2 K20 swap, crazy mods to come
Thanks for the heads up, I've looked around but only found about the problems with bleeding the air from the system. Anyone have any links?
 

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Discussion Starter #18
I ran into a snag, I purchased a Tractuff oil pan baffle from maxim and a oil pump baffle straight from Tractuff. So to use both at the same time I'll need to trim the oil pan baffle which is no big deal.

The problem I discovered is the trap doors on the oil pump baffle are on the wrong side so instead of letting the oil drain away from the chain area it was trapping the oil which could have caused a big problem especially after paying big money to have the engine built. Below are pictures I took of the oil pump baffle.





When you compare it to the picture on Tractuff's website the trap doors need to be on the oil pump side.



Anyways, I contacted Robert at Tractuff and he apologized about the problem and offered either he can send me new doors and rivets or I can mail in the defective baffle and he would replace it. I opted to mail it in, I even paid for postage from Canada. I emailed him back and told him it would take 6-8 days to arrive to him and if he can send me the replacement so I can minimize down time because now I'm waiting. So far no reply from him, that is pretty sad to not reply to a customer when it was a defect on their part.
 

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Discussion Starter #20
What will you be using for mounts?
The Hux k20 swap kit comes with a mount for the engine and you use the other 3 stock MR2 mounts that mount to the tranny.

I purchased a set of poly inserts for the stock mounts so the engine doesn't move forward and back as much. I removed the front mount inserts and only have the rear mount inserted because it would vibrate a lot at idle and was annoying on the 3sgte and will be doing the same for the k20. I hope that makes sense.
 
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