shimming the wastgate

[doom26464]

well I been looking into increasing my hp with spend little too no money at all. I was reading on the SOGI web site and came across shimming the wastegate. Now I have heard ppl before using the term and heard of ppl like describing there mods like, I have my car shimmed to 9 psi. So I read the explanaton on SOGI and it sounds somewhat easy and looks like it can gain alot of hp without spending any money. So is there a disadvantage too this?? and does anyone have better pics/despcrption on how too do this. Any info or comments would be great.

Also my mods right now are:
Drop in K&n filter
3 inch downpipe.(wich connects back to stock cat and exausht)

also only have stock boost gauge

 

[GrimJack]

It's pretty easy to do, and the only disadvantage is that if your car isn't in prime condition, the extra boost will cause parts to fail all over the place.

 

[souprat]

this has been discussed before. alot of ppl are concerned that the shims will overstress a 16yr old wastegate spring and cause some kind of permature faliure. i dont know if this is true or not but it makes sense. personally i would just spend $16 on an e-bay mbc, o wait, i've already done that. you can find a thread that i think was titled something like "cheap and free mods", talks all about this.

 

[GrimJack]

Even with the MBC, I've still shimmed the wastegate. Allows me to run 17psi and hold it all the way to redline. Without the shims, it would peak at 17psi and then slowly fall back to about 12.

 

[Orion ZyGarian]

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7981213671&category=33742
Never worry about controlling boost levels again

 

[doom26464]

well I have done massive resarching and searching on the forum and I have decide to do it. I read that mabye adding liek 4 washers can cause quite an issue but adding 1 or 2 washers doesn't hurt. So im goign to add 2 washers. Jus got back from home depot and bought 6 8 mm washers goign to toss 4 of them on (have 2 extra for spares incase somethinh happens). Im goign to do this mod this afternoon after i write my final, I'll get my friend to give me a hand just to make sure nothing goes wrong. I'll post the results later today :bigthumb: :burnout:

 

[Orion ZyGarian]

Or in about 5 seconds, you could install the MBC I posted and never have to worry about the wastegate or overboosting or anything...

 

[lagged]

~4 washers gives me 10 pounds of boost. simple, easy, and free.

 

[doom26464]

~4 washers gives me 10 pounds of boost. simple, easy, and free.

not free it cost me like 35 cents, fuck I had to take a loan out for it.

 

[doom26464]

@#@$#@#$#$$#$#$%#$#%#%$%%^ stupid damn bolts on the wastgate acurater they don't come off. I have now stripped the left bolt and now its fucked up and it just won't budge. GOD! when toyota put thoses damn bolts they stuck them in there fucking good. damn im super mad right now and there doesn't seem to be a way to get them off now that I have stripped them fuck! :rant: :madfawk: :bigun2:

 

[IJ.]

GJ: (or anyone that may know) Have you ever ran the car on a dyno and watched how far the actuator opens at 17psi? (Just interested how far it needs to open to control the turbine speed)

Only "issue" I can see with this sort of mod is if you get the gate shimmed so far the spring coil binds or runs out of travel.

 

[americanjebus]

heh oh my i just saw the train of happiness eat shit.

 

[cwapface]

that cheapo manual boost controller is looking pretty good now, huh

 

[doom26464]

is there anything i can do to get this stripped bolt off :1zhelp: I poured a bit of cold water and put some ice on it (becauses hot stuff expands alot) so mabye that will help get it out.

 

[cwapface]

ummmm hot stuff expands when it is hot...putting cold water on it won't do anything. spray it all down with PB and get some vise grips on that sucka

 

[doom26464]

ummmm hot stuff expands when it is hot...putting cold water on it won't do anything. spray it all down with PB and get some vise grips on that sucka

pb?

 

[cwapface]

sorry, didn't see the canada under your avatar PB is penetrating lube, you can find similar stuff at any auto store. it will break all the rust out and lube the bolt so you can get it out

 

[doom26464]

sorry, didn't see the canada under your avatar PB is penetrating lube, you can find similar stuff at any auto store. it will break all the rust out and lube the bolt so you can get it out

K i will give that a shot tommrow also my friend has some ideas so we will try that as well.im done for today im not goign to even touch it after 2 hours of cursing and getting fustrated I eventually tired myslef out and passed out on the couch for a nap. After waking up i felt better so i just closed the hood and left it in the garage. Every time I have to look at it it just makes me want to go at it again. Best just to leave it till tommrow as i have finals to study for.

Worse comes to worse i'll just put everything back together and just forget about increasing my boost. :wtc:

 

[GrimJack]

Big pair of vice grips will get it off for sure.

Future advice - always use a box end wrench to break bolts loose. Anyone who can strip a bolt with a box end is truly a hack.

Seriously, get the thing off there, shim it out some, AND get a $25 manual boost controller from Dr. Jonez, you'll be a much happier camper.

IJ, no, I haven't put the car on a dyno at all yet. Even if I did, there is no way to see how far the actuator is opening while the car is running - it's buried deep under the turbo, which is under a bunch of other crap.

 

[doom26464]

Big pair of vice grips will get it off for sure.

Future advice - always use a box end wrench to break bolts loose. Anyone who can strip a bolt with a box end is truly a hack.

Seriously, get the thing off there, shim it out some, AND get a $25 manual boost controller from Dr. Jonez, you'll be a much happier camper.

IJ, no, I haven't put the car on a dyno at all yet. Even if I did, there is no way to see how far the actuator is opening while the car is running - it's buried deep under the turbo, which is under a bunch of other crap.

I have already tried vice grips they don't work at all. ITs hard to get in that little space too, also I mean the bolt is not wrecked its the head of the bolt that is rounded. The vice grips just keep slipping.