MP5 turbo build

[tyman108]

i didnt mean take it off i ment hook the waste gate up to the turbo with no boost control

 

[protege3690]

you can run it and see if you get any different results. without the boost controller. but if it remains the same with low vacuum. then you have a leak elsewhere. you can also run the vac line to the wastegate , then pinch the line to the wastegate at idle to see if you vacuum changes. if it changes then your wastegate is blown. if it doesnt change the reading, then the leak is elsewhere in your system.

 

[tyman108]

so what should the boost be at idle?

 

[Lewis7789]

There is no boost at idle. You should be seeing -20 vacuum.

 

[tyman108]

ok good cause it was -12 is good then?

 

[whatusername]

-12 is definitely a vacuum leak. should be sitting between -19 to -22 at idle.

. That's not 100 percent true -12 could be good it all depends on his boost gauge if his boost gauge measures boost in psi and vacuum in psi then -12 is gud if his gauge measures vacuum in inches of mercury HG then -12 is bad

 

[tyman108]

its measures in psi it the glowshift -15psi to 30 psi

just made sure and glowshift said that it all in psi so it is -12psi

 

[whatusername]

Then -12 is good.. You are having the exact same problem I am having. 3-4 psi boost imma check for a bad wastegate

 

[tyman108]

how should i check that?

 

[whatusername]

Me personally I am going to rent a hand vacuum pump from autozone and see if it is bad that wayd

 

[tyman108]

i have no idea what that is lol?

 

[Cleverfrog]

i have no idea what that is lol?

dont worry about that. pull the vac line leading to the wg and blow into it if it leaks, you guessed it, it's bad.

 

[tyman108]

that sounds a lot better thank going to do that!!!

 

[whatusername]

Well I just did mine on my lunch break I pulled the line and I went for a ride boost number crept up past 3 but I felt like I hit fuel cut and I did not have any boost still then I borrowed a mighty vac pump put it on the wastegate and sure enough it does not hold any pressure my wastegate is either blown or is stuck open I will remove the turbo and check the flapper on Sunday

will this fit my car?

Brand new Turbo Internal Wastegate Actuator for Volvo
Fit with Garrett turbo T25 TB25 turbochargers
Application: Volvo
Actuator adjusted rod length: 70mm / 2.75" from thread hole end to 6mm hole center
Length adjustable from 6" to 7" with 2 3/4" rod
Adjusted rod hole size: 6 mm x 3 mm thick as picture shown
The pressure range is between 7 PSI to 26 PSI
Pressure can be adjusted with a boost controller


Also found these for those of us that need it http://www.ebay.com/itm/Garrett-C-Clip-for-Wastegate-Actuator-Rod-Clip-On-Adjustable-Turbo-Clamp-Thing-/151109330765?pt=Motors_Car_Truck_Parts_Accessories&hash=item232ed1674d&vxp=mtr

 

[protege3690]

it should. or u can get an ATP wastegate which is usually what a lot of ppl do

 

[tyman108]

Well I found out what it was the hose that goes to the wga had a cut in it, so I got a new hose and just need to fix the oil leak and that will be just a little tighten to the cable and then I'm done

 

[whatusername]

Hmmmm y didnt i think of checking the hose for a leak. Ill do that beforr i remove wastegate

 

[tyman108]

I did I replaced it with a brand new one

 

[tyman108]

All set up but car rev up then stalls

 

[tyman108]

Car has boost!!!!!! Getting around 6psi can't wait to put bumper back on and enjoy the extra power