wastegate type?? - Toyota Nation Forum : Toyota Car and Truck Forums

danboy · 08-02-2005, 03:19 PM

hello

does anyone know if our turbos,91ish,have internal or external wastegates?because i brought a hks evc III after reading the threads bout how rubbish manual controllers are!and im not sure what type wastegate i need it to control?or if i need to set it up as a dual port type wastegate to?because i see theres two ports on the back of my wastegate....does anyone have any advise please??
Thanks

p.s.iv said before im gona put a picture of my car on,so here it is,nothing fancy i know,but i still think it looks better than the ferrari behind it!

JekylandHyde · 08-02-2005, 03:25 PM

The factory turbo on the MR2 has an internal wastegate that is controlled by an actuator. What you are seeing with 2 ports is NOT the wastegate. It is the wastegate actuator.

The "dual port" set up is for people running external wastegates.

danboy · 08-02-2005, 05:07 PM

oh ok,thanks,you are very wise jekylandhyde!

tater_tot · 08-03-2005, 09:36 PM

well since someone has waste gates brought up.. i was wondering if anyone here has shimmed theres like most do on the mkiii supra

JekylandHyde · 08-04-2005, 05:17 AM

What does "shimming" a wastegate do for you?
I have never heard of anyone in an MR2 doing this.

tater_tot · 08-05-2005, 03:35 PM

heh i guess not then... "shimming" it is basically taking like a total of four washer and undoing the 2 bolts to the actuator and putting the 2 washers per bolt and bolting back down. its a cheap and semi safe way of gaining some boost. reason i say semi is bc some ppl have run it like tht for a couple yrs and their wasegates and wastegate diapghram stay fine. depends on health of turbo and wastegate. i was just curious if anyone had tried it on a mr2 ct26. u prolly gain about 2 psi.

Drifting Dane · 08-05-2005, 09:07 PM

Isnt that what adjusting the gain on an EBC does? except..... ummmm... safely?

tater_tot · 08-05-2005, 09:13 PM

overall yea

SpeedballTrix · 08-07-2005, 09:12 PM

"Isnt that what adjusting the gain on an EBC does? except..... ummmm... safely?"

***Hamsterman*** · 08-07-2005, 09:54 PM

on my camry - we had to move the WGA to clear the mani and block, so now my WG actually is "set" to 5psi... it is kinda cool for a 5s turbo - since it makes it safer for daily driving boost, and then the greddy profec can be set higher if desired

tater_tot · 08-08-2005, 03:07 AM

^awesome that you managed that. i totaled mine b4 i could do a swap or attempt turbo. what all did you do. and its not completely unsafe unless ur puttin like more than a reasonable amount of washers per bolt. like 3 would be the most id go. heh but considering the responses ill assume my answer was no that noone has tried it on a mr2 lol.