Mr2gtracer
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what turbo?
Ladies and gentlemen,
Now that my car is fixed and running smoothly again, i need to cure this boost bug that i've had for a while. The trouble is that i need to choose a turbo to suit what i want.
Basically i'm looking for something similiar to the ct20b but newer. I'm not looking for all out power at this stage, just something i can have some fun with (15 or so psi) that will hold through the rev range and will allow me to add to it later if needed. Also, would you recommend i change injectors etc with it or leave it running the standard gen 2 gear for now?
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PanMR2
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Re:what turbo?
2012/06/12 23:34:41
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Hi Tracer,
I think that what is important is what do you really want power wise and what range of rpm would you like to be able to drive conformable.
If you want newer turbo you could use Garret 3071 that will allow you to go up to 300kw but it is not the turbo only , the standard ECU will not cope with that. So you can start with bost controller, pig back or aftermarket ECU.
Also you could start with high flow air filter and cat, exhaust system and so on.
what year is your mr2? I don't think injectors need to be changed if is later model.
To make it short, how much power would you like to have and most important, how much money are you prepare to spend.
cheers
Pan
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dasic1
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Re:what turbo?
2012/06/13 08:31:47
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Do you have any other mods? ?
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Mrskylighter
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Re:what turbo?
2012/06/13 09:23:34
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What is your budget to do this work?
It can get expensive very quickly :)
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MR2QIK
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Re:what turbo?
2012/06/13 09:24:12
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GT3071. Disregarding discussion over supporting mods. It's a big enough turbo to be make a true difference, without being extreme or barely noticeable.
MR2QIK - "The Little Car That Could"  320rwkw @ 19psi (pump fuel, no giggle gas) 11.96 @ 116mph (with 228rwkw)
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just_ace
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Re:what turbo?
2012/06/13 11:31:51
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if your not after massive power and happy with low to mid 300rwhp i'd recommend a gt2860rs, nice and responsive like a ct20b and will hold boost thru to redline. i have a couple mates running these little suckers on gt4's and making 300+awhp with 20 psi and gen3 injs (also cams and programable ecu etc) he made 270hp with 16psi on run in tune.
with mr2 there is less drivetrain loss and weight to carry around so it'd make for a very nice streetable car IMHO.
all turbo's will require either and adapter to the standard manifold or a new custom manifold to be made along with water, oil and dump.
you can buy kits from the states, but their quality isn't always what you'd expect.
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Mr2gtracer
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Re:what turbo?
2012/06/13 16:02:16
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WOW! Ok. At the moment the engine is a standard gen 2, except for a trust intercooler and piping. I'm thinking of a slow build up instead of doing everything at once and having it off the street for another month(s). Even though i'll more than likely just drive it on the weekend, it will still be like a daily so reliability is still high.
Budget first up at the mo is around $2K give or take. I realise that paying for the parts is one thing - the labour is another. I've started looking at aftermarket ECU and boost controllers. I'm not looking to add a puel pump in my boot or anything like that - although 300kw does sound nice, even 250kw would be great :)
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MR2QIK
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Re:what turbo?
2012/06/13 16:20:50
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If 250rwkw is great, than GT3071 with aftermarket ecu, EBC, intake pump etc.
MR2QIK - "The Little Car That Could" 320rwkw @ 19psi (pump fuel, no giggle gas) 11.96 @ 116mph (with 228rwkw)
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just_ace
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Re:what turbo?
2012/06/13 16:43:36
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not sure how the STD motor will respond to that. i'd think you'd at least want to fit a MLS head gasket and some ARP headstuds before you try to reach 250kw.
also i don't think you'll get that with standard cams. they are quite a restriction.
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MRTurbo
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Re:what turbo?
2012/06/13 16:55:21
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Haha then his 2K soon becomes 4 then 6 and so on...power is a drug.
1990 SW20 GT 3S-GTE Targa 2001 Honda CBR600F4i 
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purple5ive
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Re:what turbo?
2012/06/13 17:31:40
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Just bear in mind pushign the car that far on a std old engine is askign for trouble, just be prepared for engine failure if things are not up to scratch.
i learnt the hard way.
cheers
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robk
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Re:what turbo?
2012/06/13 17:39:08
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Shamus: note that just_ace was talking in horsepower, not kilowatts, so don't get too excited about the '300' that he mentioned 
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Mr2gtracer
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Re:what turbo?
2012/06/13 18:37:24
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Haha, true. Good point Rob! I misread that entirely :(
Ok, so even though 250 is a good figure, chances are that i won't hit it with the mild mods i'm looking at.
Would it just be easier to buy a ct20b to hold me until i decide on what i want to do (although something is telling me not to do it) ? Dylan is selling one for $800 or something like that. Or should i buy an equivilent turbo that is brand new?
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Mr2gtracer
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Re:what turbo?
2012/06/13 18:40:30
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Haha, true. Good point Rob! I misread that entirely :(
Ok, so even though 250 is a good figure, chances are that i won't hit it with the mild mods i'm looking at.
Would it just be easier to buy a ct20b to hold me until i decide on what i want to do (although something is telling me not to do it) ? Dylan is selling one for $800 or something like that. Or should i buy an equivilent turbo that is brand new?
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just_ace
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Re:what turbo?
2012/06/13 19:21:00
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buy things that you can use now and when you eventually rebuild the engine.
is there something wrong with your turbo currently? i think dylan has the ct20b for only $500
that'll prob give you the biggest bang for buck in the short term, fit that, also a walbro (or other 255lph+) fuel pump and maybe a haltech sprint ECU.
or just save up for a rebuilt engine with forged pistons and CAMs etc
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