Outer Limits 4x4 Board

Hey everyone, Im putting a CT20 turbo (2l surf turbo) on my 2.8 hilux and ive got nearly everything sussed out. but when i purchased the turbo it didnt come with the wastegate actuator.

Is there a way around buying this part. i.e boost controller, blow off valve etccc,... as it is the flap inside is always going to be open because it has nothing keeping it shut so im guessing ill loose all my pressure making the turbo useless?? correct me if im wrong.
All advice welcomed. Cheers, HTH

p.s. dont no how to post pictures to show exactly what i mean..[/url]

heaps of old dead 2lt turbo's around you can get the actuator off.
check out the surf forum

cheers mate will have a look...

or you can wire it closed and use an external wastegate

What pressure are you looking for

I'm running a ct20 with a farked acuator. So the gate is wired closed runs about 13pound when up it. Have had it to around 14 or 15 when farkin caining it

Wireing it shut is always an option just a bit worried if im running 10-15 pound without an intercooler etcccc.. i might be compromising my engines reliablity

13-15 psi sounds a bit steep mate, i only run 10psi and happy with the performance thats after a rebuild with turbo pistons, stainless valves and all the gizmo's. just a hint.

yeh thats what i thought.. only want to run about 9 pound.
but gonna have trouble getting that without the wastegate actuator.
anyone no of a good external wastegate i could use?
i dont have the first idea about them so any info is welcome.
cheers

external wastegate costs $$$$ and you would have to do major manifold mods (or build a new exhaust manifold) which will cost lots of $$$.
not worth the effort.

hmm sounds like a mishh..
can i get a new wastegate actuator for this turbo??
if so where??

ask here.... http://www.toyotasurf.asn.au/forum/

if no one there as a spare and local wreakers can't help, there is a few wreakers in NZ which ship to AU and surfs are dime a dozen here.

wiring ur actuator shut why?
ct20 will run 12psi no problems just tune it
15psi tends to have them blowing the oil seal
just get an old actuator someones bound to have one lying around ,you could also extend the hose from the turbo to the actuator to about 2.5mtrs this will stop the actuator opening the waste gate (waste gate creep) to soon so it spools up quicker (will find web site which has this information on it)
realy cant see the point of modifying it to put an external waste gate not realy sure it works to well
you cant run a normal blow off valve on a diesel their are electronic ones available ive heared but their realy expensive

would love to see that website!!
cheers for the info mate

found it
http://www.autospeed.com/A_111119/cms/article.html

also i guess intercooling will come up their are other threads which are talking about them but consider
diesels only run around 400dec exhaust temp as apposed to 900 in their petrol cousins
ive decided not to run any i guess sometimes keeping it simple is best

thanks mate. i was going to run an intercooler but after careful consideration i decided the work involved wasnt worth my time as i am only going to be running small boost.. HTH

i guess i should be honest i binned the ct20 after 3 rebuilds
they have a good life and i miss it abit i now run a t26 garret
ive got about the same power slightly more torque with bigger wheels and
at a lower boost

Yeh ive been told its not the best turbo but i guess ill just run it untill it dies. then upgrade it. what is your turbo originally off? its just an upgrade of the ct20 isnt it?.. thanks, hth

they tend to be ok for 100,000ks then thet start to be come a hassel now people might say theirs lasted longer but its prolly more luck than good managment.
mines on a bundeera lj70 factory
the t26 is the next size up from the ct20,it makes power from about 500rpm to about 4000rpm so hardly any lag alittle more than the ct20
the ct20 200-300rpm to 3000ish rpm

beinthemud wrote:i guess i should be honest i binned the ct20 after 3 rebuilds
they have a good life and i miss it abit i now run a t26 garret
ive got about the same power slightly more torque with bigger wheels and
at a lower boost

Where did you get your rebuild kits from?

i got mine from the american ebay site.
its not really a complete rebuild kit tho.
just go on the ebay site and search ct20 turbo..
should come up. hope it helps

My First rebuild was Axt turbos ran wicked for ages, took it to a so called mechanic who then caused an engine issue which caused the oil pressure rise and force oil past the turbo seal and popped the crank seal aswell ,
then took it to another fool who rebuilt it twice.
then it went back to Axt who put the t26 on it about 1yr ago and its been singing ever since