boost leak

T

tylerearl88

Free Member

May 22, 2010

63

0

6

belleville, Ontario, Canada

• Dec 21, 2010

• #1

took my diy turbo 08 nytro for a rip across the lawn for the first time tonight. It idles good and motor seams to be running well but when you start to get into the throttle it sputters, boost gauge will not read above 0 and the air fuel is at 10. I think it is a boost leak. What would be the best way to find the leak if it is not an obviouse one like a line off? also does anyone have any idea what else it could be?

thanks.

 

R

relentless rider

Well-known member

Jan 25, 2009

862

208

43

in the mountians western mt

• Dec 21, 2010

• #2

Might just be Elevation,My turbo apex runs like that down low,as soon is i start up in to the mountians it cleans up.

 

Turblue

Well-known member

Lifetime Membership

Jun 11, 2004

1,022

406

83

Alberta

• Dec 21, 2010

• #3

hook a regulated pressure supply to the intake of the turbo...crank it up to 15 psi.....

 

C

canuck5

Member

Aug 25, 2009

60

13

8

Sylvan Lake AB

• Dec 22, 2010

• #4

This is signature boost leak man, seen it many times and it shouldnt be a small one. Check every hose clamp from the compressor forward to the throttel bodies one of them should be off. If not the other two possibilities are blow off stuck open or waste gate which is rare. What kind of turbo?

 

T

tylerearl88

Free Member

May 22, 2010

63

0

6

belleville, Ontario, Canada

• Dec 22, 2010

• #5

It's a Mitsubishi 16t turbo. Waste gate is closed I'm pretty sure. I'm going to check everything tonight. So you think it would have to be a large?

Thanks.

 

C

canuck5

Member

Aug 25, 2009

60

13

8

Sylvan Lake AB

• Dec 22, 2010

• #6

3-4 times ive seen it have been around the intercooler, and once right off the compressor discharge.

 

T

t_thall

Member

Oct 22, 2008

131

13

18

• Dec 22, 2010

• #7

Mine did this with a cracked intercooler tank. Also seen one where the throttle bodies were popped off the engine...

 

T

tylerearl88

Free Member

May 22, 2010

63

0

6

belleville, Ontario, Canada

• Dec 22, 2010

• #8

Found the problem.blow off valve diaphram was weather cracked. Is there a way to adjust the idle. It will not idle now also idles rich.I can get it to 6-7 lbs of boost but it's a dog and only revs 7000-7500 rpm. There is only about three inches of snow here and no traction but even slowly accelerating on a long stretch it only hits 6-7 lbs and is only reving 7000-7500 rpm at 120km per hour. I have super tip weights and a helix from ulmer and a pink primary spring from ulmer. Are the weights to heavy???

 

R

relentless rider

Well-known member

Jan 25, 2009

862

208

43

in the mountians western mt

• Dec 22, 2010

• #9

I would tune on the hill,its hard to know whats going on in the yard,how much weight do you have on,and were is it at,heel,mid,tips?

 

Last edited: Dec 22, 2010

B

BigFish BC

Well-known member

Jan 27, 2005

3,348

1,139

113

kitimat b.c

• Dec 23, 2010

• #10

tylerearl88 said:

Found the problem.blow off valve diaphram was weather cracked. Is there a way to adjust the idle. It will not idle now also idles rich.I can get it to 6-7 lbs of boost but it's a dog and only revs 7000-7500 rpm. There is only about three inches of snow here and no traction but even slowly accelerating on a long stretch it only hits 6-7 lbs and is only reving 7000-7500 rpm at 120km per hour. I have super tip weights and a helix from ulmer and a pink primary spring from ulmer. Are the weights to heavy???

Click to expand...

sounds like you may still have another leak do you have a boost controller or a air fuel gauge,you should be reving 85-8900 rpm what kind of fuel controller do you have.