2.0 turbo trouble

**mjmmx693** · 12-11-07, 18:57

1993 mazda mx6 4 cylinder
I hooked up a t3 garret turbo with a tial wastegate, xspower bov, manual boost controller, aem boost gauge) only has down pipe ( didnt weld the rest of the exhaust yet)
tested while car is on jacks...DID NOT DO A ROAD TEST
Problems...
1. boost gauge only reads vacume..the higher the rpm the higher the vacume..at idle it reads 0..at 5000rpm it reads 20 (in vacume)

2. we can see the bov working but its makes no noise

3. when we took off the pipes to see in the turbo is even pushing air while reving it..I think i can blow harder than the turbo it blowing..the wheel is spinning though and we hear it getting louder as we rev but the air coming out isnt that strong.

4. manual boost controller makes no difference at all
DOES ANYONE HAVE ANY IDEAS FOR ANY OF THIS..I think the boost gauge wont show any actual boost until we get it on the road but my friends say i am wrong

**mjmmx693** · 12-11-07, 18:58

could the tial wastegate be messed up and cause all of the troubles or is it something else? any help is good

**cf_z** · 12-11-07, 21:30

i think you shouldnt have a turbo.

but to answer you questions,

you tested it on jacks? hopefully in neutral. you wont build much boost if any in tuetral, and the BOV wont push enough air to make a substantial PSH sound.

the boost/vac gauge shouldnt really read any 'higher' vaccum when you rev higher.
at idle you should have more vaccum than any other time (other than de revving).
vaccum has more to do with the LOAD on on the motor than the actual RPM. Like if you floor it you should have 0 to about 3 in hg or whatever. Half throttle should be at about 10 or so. you can be revving at 5k, as long as you just cruising vac will be lower.

no way in piss hell you can blow more than a t3 garret. somethings wrong. just send it to me and i'll see if it works

ask for the manual boost controller, i dont knwo if you'll be able to tell a difference if your not making boost, cause the wastegate aint gonnna open in the first place!

**Turk** · 12-12-07, 6:25

Without the exhaust connected, on the road, I couldnt build boost at all in my KLZE. I just dont think there is enough. Connect the exhaust up, get it on the road. It will probably boost. You cant check [shizzle] on stands. And like cf_z said, it is dangerous.

12-11-07, 18:57	#1 (permalink)
mjmmx693 Join Date: Mar 2006 Location: west chester, PA, USA Age: 20 iTrader: (0)	2.0 turbo trouble 1993 mazda mx6 4 cylinder I hooked up a t3 garret turbo with a tial wastegate, xspower bov, manual boost controller, aem boost gauge) only has down pipe ( didnt weld the rest of the exhaust yet) tested while car is on jacks...DID NOT DO A ROAD TEST Problems... 1. boost gauge only reads vacume..the higher the rpm the higher the vacume..at idle it reads 0..at 5000rpm it reads 20 (in vacume) 2. we can see the bov working but its makes no noise 3. when we took off the pipes to see in the turbo is even pushing air while reving it..I think i can blow harder than the turbo it blowing..the wheel is spinning though and we hear it getting louder as we rev but the air coming out isnt that strong. 4. manual boost controller makes no difference at all DOES ANYONE HAVE ANY IDEAS FOR ANY OF THIS..I think the boost gauge wont show any actual boost until we get it on the road but my friends say i am wrong

12-12-07, 6:25	#4 (permalink)
Turk Veteran Join Date: Jun 2005 Location: Sydney, Australia Age: 20 iTrader: (5)	Without the exhaust connected, on the road, I couldnt build boost at all in my KLZE. I just dont think there is enough. Connect the exhaust up, get it on the road. It will probably boost. You cant check [shizzle] on stands. And like cf_z said, it is dangerous.
	174kw at 9psi KLDE-T

12-11-07, 18:58	#2 (permalink)
mjmmx693 Join Date: Mar 2006 Location: west chester, PA, USA Age: 20 iTrader: (0)	could the tial wastegate be messed up and cause all of the troubles or is it something else? any help is good

12-11-07, 21:30	#3 (permalink)
cf_z Join Date: Sep 2007 Location: NE Indiana, USA Age: 18 iTrader: (16)	i think you shouldnt have a turbo. but to answer you questions, you tested it on jacks? hopefully in neutral. you wont build much boost if any in tuetral, and the BOV wont push enough air to make a substantial PSH sound. the boost/vac gauge shouldnt really read any 'higher' vaccum when you rev higher. at idle you should have more vaccum than any other time (other than de revving). vaccum has more to do with the LOAD on on the motor than the actual RPM. Like if you floor it you should have 0 to about 3 in hg or whatever. Half throttle should be at about 10 or so. you can be revving at 5k, as long as you just cruising vac will be lower. no way in piss hell you can blow more than a t3 garret. somethings wrong. just send it to me and i'll see if it works ask for the manual boost controller, i dont knwo if you'll be able to tell a difference if your not making boost, cause the wastegate aint gonnna open in the first place!