Turbo Boost?
Thread Starter
|
Junior User
Joined: Sep 2007
Posts: 50
Likes: 0
Turbo Boost?
How much boost should I see with the ATS Turbo in my "87" 6.9L ? I only develope about 5 psi with my foot in it. Truck runs fine. Just got this truck awhile ago and I don't have a clue. I read in some info provided with the truck that the turbo could get up to 14.5 psi. If thats true do I possibly have a vacumme leak or something. Please any HELP or suggestions will be greatly appreciated.
Junior User
Joined: Jul 2007
Posts: 56
Likes: 0
From: Regina, Sask
What is your exhaust system like? The freer flowing the exhaust the more flow to spool up the turbo. Also if you are trying to get her to boost with a empty truck, you may be wasting your time.My 94 didn't build much for boost until I upgraded the squashed downpipe & went to a staight thru exhaust system. And to see real boost you need to load her down, tow a trailer, do something to make the engine work. An empty truck is not enough of a load to make the engine work.
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
Is this your system?
http://vashonit.com/engine.htm
Its the same as mine; ATS 088 non wastegated turbo pack. I also rarely go past 5 psi, and there is a fair amount of smoke with my foot to the floor. It can develope around 10 psi, but I have to let the revs go higher for that.
I can get more boost by turning up the fuel, but then theres even more smoke.
If you are not seeing smoke, then you probably turn the fuel up.
I'm not sure if what you and I are experiencing is the norm for this setup, so I would be interested to find out what others have to say.
http://vashonit.com/engine.htm
Its the same as mine; ATS 088 non wastegated turbo pack. I also rarely go past 5 psi, and there is a fair amount of smoke with my foot to the floor. It can develope around 10 psi, but I have to let the revs go higher for that.
I can get more boost by turning up the fuel, but then theres even more smoke.
If you are not seeing smoke, then you probably turn the fuel up.
I'm not sure if what you and I are experiencing is the norm for this setup, so I would be interested to find out what others have to say.
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
Originally Posted by Saskr
Hey there David, with 3.08 gears & an overdrive tranny, you must have an awesome top end speed. Bet your fuel mileage is pretty darm good too.
Looks the same. Info provided with the truck says it's an ATS 085. Maybe I"ll ry turning up the fuel. About how much should I turn it up. It doesn't blow any smoke now.
http://www.atsdiesel.com/ATSWebsite/...rboSystems.asp
If you are not seeing any smoke while flooring it, then thats probably your problem. Ideally, you want to see a mild black haze at full power. Turn the fuel screw up by 1/6th of a turn per adjustment, or one flat of the allen wrench, and retest. I think you will enjoy the results.
Thread
Thread Starter
Forum
Replies
Last Post
pontichev
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
7
Oct 27, 2011 06:52 PM
schamsy
Supercharger, Turbocharger, Nitrous Oxide & Water/Methanol Injection
17
Oct 10, 2011 03:24 PM
VQ2Fast4U
1999 - 2003 7.3L Power Stroke Diesel
7
Mar 17, 2008 03:29 PM
