I want to turbo my 82 burb. Will a torbo off a 6.5 fit it? How much boost do they make? Can you mess with the waste gate to get more boost? Or, would an after market turbo be better? what do they cost?


With the turbo could I gain from turnning up the fuel pump? How does this affect milage?


ANY input would be appriciated.


Thanks, Owen Edited by: War Wagon

I like the 6.5L turbo system as an upgrade because it's available across the USA and canada in truck salvages and relativly affordable. It will fit with minor mods.Yes you can burn more fuel with more boost, Makes 15 psi max. A boost guage and pyrometer become real necesseties.

Quantum Mechanic-


By pyrometer do you mean an exhaust temp guage? I have also considered fabricating my own ram air system. Any idea how much boost this will create? How much will the engine handle and still run for a long time. At 15 psi of boost from the turbo is it stock or is that with some adjustment to the waste gate? You say that it can burn more fuel turboed. Does this mean that you couldn't obtain ordinary 6.2 mileage if driven properly?

EGT is a type of pyrometer. Boost from a ram air?? depends on the design but a psi or two would do wonders.


15 psi is maxed out pedal to the floor (2500 + rpm) and does require adjustment from stock. 2100 rpm is around 3-4 psi boost on the highway @ 65 MPH in OD with the same adjustment to boost.Edited by: quantum mechanic

1/2" of water is all the pressure you can build with a ram air system before air becomes stagnant and spills out of the opening. like holding a glass under the faucet, when it gets full, water runs over the edge........you don't build enough water pressure to blow the glass apart. This is why the inlet openings on pro stock, and Indy cars plus formula 1 keeps shrinking...point of no return.

Grape:


By a 1/2" of water do you mean a 1/2" of boost?


I also thought that ram air would alow cooler, denser air into the intake.


Quantum Mechanic:


What kind of adjustment would I need to make to aquire 15 psi of boost from a 6.5L Turbo?

The adjustable spring arm you can buy or make.

And this sping arm controls the waste gate?

Normally 6.5 turbo WG is vacuum controlled, when it fails or no vac is available a Turbomaster Spring loaded control keeps the WG closed allowing boost to build. Spring is adjustable for boost, adding a tubro involves a little more than just adding the turbo.


Gauges are a must especially in a NA to turbo conversion since that PCM won't have ability to pull fuel or boost when high boost , or IAT is encountered, economy will probably degrade somewhat, backpressure on exhaust will go up, will also need a cross over manifold to suppy exhaust from both banks of the engine to drive the turbo.


15psi boost is too much boost without intercooling, I'm not sure of max allowable boost on the 6.2, I would guess 4-5psi is about the limit with peaks up to about 7-10, go to Banks website http://www.bankspower.com/ read up on their 6.2 turbo kit, also spend some time at their FAQs a lot of good info how to make power with a Diesel.Edited by: Turbine Doc

Turbine Doc-


I assume that it would benifit me with a turbo to go with a dual straight exhaust.

Duals not much benefit post turbo, large single is what is run post turbo 3-4" diameter, mine is a 3.5" system, the turbo itself is a restriction but the added boost it provides more than makes up for the restriction factor

grape-


By a 1/2" of water do you mean a 1/2" of boost?

Using a manometer (U tube device) it is pressure or vacuum required to move a column of water or mercury in the tube 1/2" up the tube, grape is saying ram effect would be a +1/2" up from 0 line. You can make a manometer 1/2 vinyl tube in U shape filled with water; with = pressure or vac at both ends of tube would be the zero, blow on 1 end measure the drop or rise of column of water in " would be a positive pressure, suck on one side and the drop or rise would be vacuum in " of water, fill tube with mercury and reading would be "of mercury


Boost is measured in psi or kPa or these trucks.Edited by: Turbine Doc