I've been thinking about this for a while, so as it says above really, what sort of money am I looking at to get it sorted and who could do it? I'm not an engine man, doing this myself would be too much.

I don't want huge power, just looking for reliable, low stress power using as much standard stuff as possible.

Any comments welcome.

Gareth

id say at least 9-11k for a proper job. if your not looking for power id recommend keeping it standard or just going for 300+ hp with a gt28r and it will still be reliable and very driveable there are sum amazing results with that turbo now and it will be alot cheaper.

If you don't want huge power, you don't need a 2.4 conversion

As has already been said, decent power (ie 300-350) is easily and cheaply achievable with a 2 litre block, running standard internals. The mods are retricted to bolt-on goodies (turbo, intercooler, filter & intake, injectors, exhaust and of course, some live mapping). All of this can be done for a couple of grand or so.

a 2.4 would be better, of this there is no doubt. It would spool earlier, probably give more torque and would definitely be better off-boost. However, it will cost five times as much.

If your definition of "huge power" is 500+, then a 2.4 is a good way of going about it. Anything less than 400 bhp as your target means staying with a 2.0 unless you have an irrational need to empty a bank account.

It would spool earlier, probably give more torque and would definitely be better off-boost.

Thats the bit I like Nigel!

I can't understand why this would cost so much but I'll trust the judgement of you guys of course.

I colleague of mine had a fully rebuilt V6 shoe horned into his MR2, along with a supercharger and associated mods for £5000, all work carried out by a respected Toyota specialist, which is why I'm a little shocked at the prices suggested!

The idea behind my thinking was to achieve a modest power increase, but a more significant torque increase, but using a standard turbo on standardish boost, hopefully giving me a less stressed engine and better day to day drivability.

Never mind, sounds like a no go to me.

Gareth

I can't understand why you'd think it would be so cheap.

my advice is stay well clear of the 2.4 unless you want to customise a lot of other things...

clutch, cooling system ( oil & water ), exhaust, ECU, fuelling system, suspension ( odd to say that, but 400+ hp is no good on stock crap ), intercooler, gearbox, brakes, brakes, brakes, did I say brakes !

I only took the plunge cos my old engine spun a shell, else I wouldn't have bothered.

True, off boost performance is better, but you have to spend a lot for this benefit.


Cost versus returns

id like to try the opposite,20vt coupe engine to replace a 2.4 in an stilo arbarth. Really like the stilo and with 220bhp standard i deffo have one.Unsure if its any easier either

/\ amen

Check this thread by JohnS as it gives a little bit of insight on the 2.4 conversion costs.

I've thought about the 2.4 conversion route before proceeding with my plan (3 years back) and I would say that the engine by itself would cost around £6,000.

As for who can, I'm sure others will comment on here. I know that Barbz can still do it but he is in UAE now.

I also say that you should go for the 2.4 conversion if you are ready for it.

Good luck mate

That's stupidly cheap!

I would build one but it isn't my day job. If you just want more torque and better driveability you could go with a standard head that will massively cut down the overall cost.

if your serious, could you put one in a stilo and how much?

i saw an offer few weeks ago 2,4l Kit with h beam rods, shorter pistons and Stilo crankshaft with bearings for about 2600 gbp

Spee: what setup do you have today?

I could build the engine but not do the rest of the conversion. It has been done in a stilo abarth already I believe. Problem is the engine has to come out because unless it is very low mileage there is ovality in the top of thebores