Mk III engine swap Qs.

[MisterSquared]

I was thinking of buying an MR-S to work on, however I am not too happy with the stock NA 140BHP Celica that it comes with.

My question to you is what would be the best engine choice for a ~280-300RWHP build?

3SGTE?

2ZZGE?

Rebuild the stock 1.8l?

B or K series swap?

I would be looking at ease of work/install, reliability, and lowest cost options.

I am happy to go either NA or FI, IDK if its a SC on the stock engine or a turbo 3S, if thats the case. Also, I would PREFER minimal custom fabrication if possible, so if theres a kit of some sort, that would be perfect.

So all that being said... what say you?

Also, what sort of 1320 ETs is one looking @ with a 300RWP S? I know they are bantom weight racers, so they must really fly with some decent HP.

P.S. I would also be interested in doing an NA build with a 2ZZ-GE swap. I think this could have some serious performance potential given the layout of the MR-S and its curb weight. Is there a direct swap kit for these cars and the Celica GT-S engine/6spd? Also what sort of performance numbers could one expect out of an MR-S with said swap (sans any further performance mods)? And one last thing... is there a TRD SC kit for this engine and will it fit on the engine if its swapped into the S?

[supunna_picta]

You're looking at the wrong car. There is no SC that meets your qualifications. The 2 turbo kits will run you around $5k uninstalled. The swap is your best bet with a 2zz but it is all top end and you will do a lot of stuff on your own unless you live near one of the few installers.

[drummerdawgmr-s]

The 2zz swap is the only swap so far that has parts available that you can do yourself, anything else you will be looking at doing some fabrication.

The route i plan on going is sticking with the factory 1zz and building it, they have been built up to 500whp by monkeywrenchracing.com which was good i believe for a 10 sec 1/4 mile pass(they have the slip on their site)

The 2zz built by the same place im wanting to say has built up to ~800hp(in a Celica) and have broke the 200mph mark with it recently.

Im sticking with the 1zz because when built it will have a better tq/hp ratio than the 2zz.

Other swaps i can think of that have been done is the k20, and the V6 from the newer Solara's. Little Rocket is developing a kit for the v6 swap and IIRC he said their would be enough room for a turbo He is also the one who developed the kit for the 2zz swap.

Stock Spyders have been mid-low 15's maybe even high 14's in the 1/4. The 2zz swaped with a intake and header I believe are in the 13's.

[loadswine]

The V6 can give you a nice conversion, and you have the added advantage of good access to the alloy block models like the 1MZ and 3MZ units. A bit of headwork and a nice bit of pipework and you will have one heck of a tractable unit.
Should weigh about the same as a turbo 1zz.
I should think that the best way of adding some forced induction would be a Rotrex, it should pretty much fit where the aircon compressor goes.
With a V6 you'd have enough torque to work quite well with a Rotrex. Controlled low down and downright grunt higher up the rev range.

[lbridges]

Just in case you're not familiar - loadswine speaks from knowledge about the V-6 in the MK III model.

[Davis]

Originally Posted by lbridges

Just in case you're not familiar - loadswine speaks from knowledge about the V-6 in the MK III model.

Loadswines one lucky bloke!

[GR2]

I agree with the v6 swap. I am currently gather everything for my do it yourself swap. On other websites you may find great information on this. Another swap I just saw though was a 2.4 2azfe. you might check out this engine and even the turbo set up for it

[MisterSquared]

What sort of cost are you looking at to do a V6 swap in an MRS? Its been my experience from reading/asking around that it entails a lot of custom work.

[MR2 Drifter]

How much are you willing to spend because any of this stuff is going to cost you a pretty penny

You could get a 3sgte, build it up a little, buy a bigger turbo kit and your good to go with around 250 rwhp

[MisterSquared]

Well i can get a very good turbo kit from MWR for 4800. That comes with EVERYTHING (rear mount IC, full exhaust, DP, Power FC standalone ECU, GT28 turbo, fuel mods, all piping, etc.)...


I could then buy a 1zz block for cheap and install forged internals in it (or MWR is selling a completely built 1zz block for $3500).

Total cost (if I went with the prebuilt stuff) would be ~$8500... less if I wanted to build the 1zz my self.

With that set up, I could safely product 400+ RWHP, all be it limited to ~350RWHP with that turbo, which is still more then I need in a 2100lb car. In fact, I'd probably just shoot for ~300RWHP and be done with it, keeping safely within pump gas tolerences for daily driving reliability.

Can a V6 beat that price/performance ratio?

[loadswine]

You won't beat that power with a NA V6 and the cost for a V6 swap in the UK is around £4500 all in. Maybe more if you specify extras. I've driven turbos at around 270 bhp on the 1zz and they are quicker in a straight line top end, but nothing in it on the road, or track, from what i've seen.
Power delivery is very different and the sound of the V6 is superb. It all depends on what you are after though. I went from a turbo 1zz to the V6 and am very happy with that, though my turbo was around 200bhp, not the sort of figures you are after.
Don't forget to factor chassis bracing as it helps the car no end when you are using an engine with all that grunt.
I think that I would opt for chargecooling if you are going to run the turbo in a warm climate, but that's just me.
good luck with whatever you decide, and don't forget to show us the build info.

[MisterSquared]

What do you mean by "charge cooling"? Water/alc injection? A2W inter cooler?

[loadswine]

Yes, I guess its a water to air intercooler. Very effective for reliable , stable power.