Series 60 Turbo (was Re: Reduced turbo boost-RESULTS-followup ??)

[p_a_lazar]

--- In WanderlodgeForum@yahoogroups.com, George Lowry wrote:
> One of the first things I did was to upgrade the turbo on the Series
> 60 in our WL. You are right, Jeff, about the standard turbo having a
> "full flow" without a waste gate. Much cheaper, but less efficient.
> With the new turbo, throttle response is instantaneous, we have about
> twice as much boost as before; Exhaust temps are running about 100
> degrees less and oil and water temps are 20 - 25 degrees less. Mileage
> increases slightly, probably only about 2.5%. It has made the coach
> much more of a pleasure to drive...
>

George, now you have me thinking, and that is dangerous, LOL

I'll have to look at my turbo and try to spot a wastegate, but I have
no problem developing 26-28 lbs of boost and pyro temps have never
gotten above 900 even pulling 8% for long periods. BUT! It is a bit
slow to spin up and get going from a dead stop.

What years have the new turbo?

Paul
97wb43

[George Lowry]

Hi Paul,

Remember that I have the series 60 which is a four stroke. As far as
I know, none of the Detroits ever came with a waste gated Turbo.
After consulting with my Turbo Guru, Pius at Bell Turbo in Stockton,
CA, I decided to have mine standard turbo replaced with the "daughter
of all turbos". BTW, Bell turbos have powered the fastest diesels in
the US. My pyro normally runs around 5 - 600 while cruising only
occasionally getting up to 700 with boost of 25 psi. I am thinking
about seeing if we can get it turned up a bit higher. I suggest you
give Pius a call. He is one of the most knowledgeable people in the
country and in in great demand. Next to him, I know nothing....

George Lowry
'95 WBDA 4203 & GM 4106 (for sale)
Spearfish, SD

p_a_lazar wrote:

> --- In WanderlodgeForum@yahoogroups.com, George Lowry wrote:
>
>>One of the first things I did was to upgrade the turbo on the Series
>>60 in our WL. You are right, Jeff, about the standard turbo having a
>>"full flow" without a waste gate. Much cheaper, but less efficient.
>>With the new turbo, throttle response is instantaneous, we have about
>>twice as much boost as before; Exhaust temps are running about 100
>>degrees less and oil and water temps are 20 - 25 degrees less. Mileage
>>increases slightly, probably only about 2.5%. It has made the coach
>>much more of a pleasure to drive...
>>
>
>
> George, now you have me thinking, and that is dangerous, LOL
>
> I'll have to look at my turbo and try to spot a wastegate, but I have
> no problem developing 26-28 lbs of boost and pyro temps have never
> gotten above 900 even pulling 8% for long periods. BUT! It is a bit
> slow to spin up and get going from a dead stop.
>
> What years have the new turbo?
>
> Paul
> 97wb43
>
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