Better Boost
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 201
Likes: 0
Better Boost
My truck has a factory ford turbo that I have put a custom downpipe on but still has the stock outlet housing. I am pretty happy with it, but I would like to see more boost on the highway. Right now im getting about 2-2.5 going about 55. How can I get this number closer to 4? Will the upgraded outlet make any significant difference in that? Does anyone know of any upgraded compressor wheels or things like that?
Lead Driver
Joined: Mar 2006
Posts: 5,111
Likes: 1,546
From: western SD
Shorten the wstegate rod. When you do this, hold the rod so it can't turn, an turn the end piece. If the rod turns it will tear the diaphram and ruin the actuator. My 85 was getting about 2 lbs @ 65 mph I shortend the rod by 6 turns now I'm getting around 5-6 lbs.
Post Fiend
Joined: Oct 2007
Posts: 10,501
Likes: 5
From: Faibanks Ak.
Cruising you really can't you will only make boost under load. If you will notice in nuetral you can wind her up romp on it whatever and it will not make boost. cruising on the road will vary between 0 and usually around 3 if you are pushing a bad wind or pulling a grade it should go up in relation to how much more fuel it takes to hold your speed. the lower the boost the higher your fuel mileage is while on the highway.
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 201
Likes: 0
I have the rod so that 9 psi is the max, which is right where I want it. And how would more boost be less fuel mileage? Because in my thinking more boost=more fuel burned which= less wasted fuel which= better fuel mileage. Something must be wrong with my logic lol.
Postmaster
Joined: Jun 2008
Posts: 2,500
Likes: 2
From: Michigan
More fuel burnt=more miles run=shutting the truck down sooner. Probly dont make up the difference tho lol
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 201
Likes: 0
Lol okay i guess I can see some logic in that. But some people say that on the highway with an ats turbo they get around 4 psi. How is that so? Is is because I have the factory outlet still?
Trending Topics
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Boost takes fuel and heat.
Boost also take a free flowing exhaust and intake.
Boost also take RPM's.
65 MPH I see between 10 and 20+ PSI, 10 going downhill, 20+ going uphill.
Ram air to the air filter, 3" exhaust, no muffler, wraped up pipe and enough fuel.
Boost also take a free flowing exhaust and intake.
Boost also take RPM's.
65 MPH I see between 10 and 20+ PSI, 10 going downhill, 20+ going uphill.
Ram air to the air filter, 3" exhaust, no muffler, wraped up pipe and enough fuel.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 201
Likes: 0
Well ive got a 4 inch straight pipe, the up pipe wrapped, and the fuel about one flat short of being maxed out. Ive got a k&n filter so I should be getting plenty of air in. Im thinking that it must be the stock outlet that is holding me back.
Thread Starter
|
Senior User
Joined: Jan 2009
Posts: 201
Likes: 0
When I floor it it will jump to about five and then keep climbing till it opens the wastegate at 9. The reason I want better numbers on the highway is because it looks like I have a bit of soot coming out at that speed. When I take off there is a tiny bit of smoke, then it clears up when I get to about 3 psi. But then when I let off at 55 it goes back down to about 2 and it smokes a little bit going down the highway. So my thinking is that a pound or two more and I will burn off that little bit of excess.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Are you running the stock 85 IP?
If you have the stock Ford turbo outlet, that will cost you in both spool time and max boost.
What do you have on for a downpipe?
Stock Ford also costs spool time and max boost.
If you have the stock Ford turbo outlet, that will cost you in both spool time and max boost.
What do you have on for a downpipe?
Stock Ford also costs spool time and max boost.