More boost in higher gears?
More boost in higher gears? About a month ago I finished my first turbo build on my '01 Silverado and am still getting used to the behavior of a turbo vehicle. One thing that I've noticed is that I will get more boost in higher gears using a constant boost setting. For example I will get 9.5psi in 2nd and then 12.5psi in 4th. Is this perhaps because there is more load on the engine in higher gears?
It's a single Turbonetics TC76 front mount and A2A intercooler.
Thanks
It's a single Turbonetics TC76 front mount and A2A intercooler.
Thanks
Teching In
Joined: Jul 2011
Posts: 44
Likes: 0
From: Great Bend, KS
IMO its only way to go to get good controller like eBoost2 etc. Can set limits, change on the fly and controls boost more efficiently. On that note I have been around turbo cars but in process of building my first so to get good answer listen to experienced people not me, lol.
Its a waste gate size and location problem. The boost controller is a band aid and it will not hold it down to 8 in high gear if the gate cannot keep up. I would have to guess this is a kit with the gate in the crossover under the truck.
Launching!
Joined: Jun 2013
Posts: 275
Likes: 0
From: New Orleans
I would have to agree, the waste gate either can not flow enough due to size or location. Controller will not help much if any.
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where should it be okay on a log manifold setup?
The extra load of the higher gear and wind resistance is putting more heat in the exhaust and due to the heat you are getting a higher flow rate, so much that the gate can't get rid of the excess this excess flows through the turbine spooling it more.
What size gate, turbo, ect does the truck have?
Fix is to reposition the gate, get a larger one, or dump it to atmosphere if its not already. Good Luck
^This X3
The extra load of the higher gear and wind resistance is putting more heat in the exhaust and due to the heat you are getting a higher flow rate, so much that the gate can't get rid of the excess this excess flows through the turbine spooling it more.
What size gate, turbo, ect does the truck have?
Fix is to reposition the gate, get a larger one, or dump it to atmosphere if its not already. Good Luck
The extra load of the higher gear and wind resistance is putting more heat in the exhaust and due to the heat you are getting a higher flow rate, so much that the gate can't get rid of the excess this excess flows through the turbine spooling it more.
What size gate, turbo, ect does the truck have?
Fix is to reposition the gate, get a larger one, or dump it to atmosphere if its not already. Good Luck
