engine swap alternatives?

Q&A regarding engines, turbos, and intercoolers and power upgrades

Re: engine swap alternatives?

Postby underscore » Sat Mar 15, 2014 2:28 am

^ tell me again which K20 makes more power, stock for stock, than a 3S? The reason you see more modded Hondas is because they're more common than our cars. Flip the sales numbers and you would be seeing the same number of big power Celicas as you currently do Civics.

CSAlltrac wrote:I agree with you that the 3S is just as capable. What it does not have is 1/3 the aftermarket support of a K series Honda engine. That with the cost difference of what it takes to make a high HP K series vs a high HP 3S. Ill take the "completely unnecessary fab work" route, the difference is that big. To each their own, diversity in the car world is why it's so good.


It has the support in terms of everything you need to make as much power as you want. Internals are easily available, and pretty much everything outside the block is universal fit. But to shove a K20 into an MR2, you're worrying about fitments because the engine and tranny have different dimensions, outlets for things end up in crappy spots, you're likely getting custom CV's every time one gets damaged. Now you've gone through a bunch of money and work and rework just to fit the K20 in, and it doesn't make any more power and you've got the same displacement as you did before you got this silly idea, in a frankencar you'll have to take a huge loss on and wait forever to sell. Unless building a big power K20 costs 1/4 what a 3S does it's a huge waste of money just to say you have a K20 powered MR2.

And how long did it take them to build this thing? I'd rather be driving my car than spending forever building some abomination that might never work.

Now what DOESN'T have the support, is our chassis. Engines are the easy part if you're going for big power IMO, but look at how much footwork people have to put in to try and get us a front LSD, or a tie rod flip kit, or a CF driveshaft. If I was going to do a goofy swap like this, I'd be shoving our motor into something with good chassis support, throw a 3rd gen 3S into a Civic or something.
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Re: engine swap alternatives?

Postby MWP » Sat Mar 15, 2014 11:04 am

ALLensTRAC wrote:But why not go even crazier??
How about a 2jz longitudinally mounted with a custom oil pan setup to use an R34 Getrag and front diff setup. That way you keep AWD and a Toyota engine using solid drivetrain components with plenty of support. The fab work is the fun part!!!


JZ's are too heavy, go 1UZ :)

Like this: https://www.youtube.com/watch?v=7rdo_yCYCHY
Another vid: https://www.youtube.com/watch?v=7rdo_yCYCHY
Thats a twin-turbo 1UZ with a Nissan GTR (4WD) drivetrain.
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Re: engine swap alternatives?

Postby ALLensTRAC » Sat Mar 15, 2014 2:39 pm

MWP wrote:
ALLensTRAC wrote:But why not go even crazier??
How about a 2jz longitudinally mounted with a custom oil pan setup to use an R34 Getrag and front diff setup. That way you keep AWD and a Toyota engine using solid drivetrain components with plenty of support. The fab work is the fun part!!!


JZ's are too heavy, go 1UZ :)!



Normally I would agree but personally I did the Twin Turbo 1UZ thing and it ended in expensive disaster. You want to talk about an engine that has almost zero US support the vvti 1uz is it!! The reason I said 2j is the Getrag is bolt on and the engine can take a serious beating. And there's the ridiculous amount of aftermarket support! In my mind that project would be built for the drag strip not road course or auto cross so the weight would be negligible. But I agree the 1UZ is an awesome engine and doesn't get the respect it deserves similar to the 3s.
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Re: engine swap alternatives?

Postby MWP » Sat Mar 15, 2014 3:48 pm

Oh, you would have to be a bit crazy to go with a VVTI 1UZ.
The older non-VVTI 1UZ is the best way for turbo unless you have lost of time and $$s to get custom cams made, etc.
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Re: engine swap alternatives?

Postby Sifu » Mon Mar 17, 2014 2:06 pm

I would always prefer the manufacturer's parts (bin) as a purist but you can't deny the bat-sh1t stuff other people do with their cars and I can respect that from an engineering POV.
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