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Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: ilyafish on June 23, 2009, 08:35:12 PM

Title: Installing turbo on non turboed 8v71
Post by: ilyafish on June 23, 2009, 08:35:12 PM
How hard of a job is this, and how much $$$ to do it yourself?
Title: Re: Installing turbo on non turboed 8v71
Post by: Tenor on June 23, 2009, 08:38:55 PM
$$$$$$$$$$$$$$$$$$$$$$, no, wait, I remember! $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$  ;D

Glenn

PS:
I always wanted to play with some of the options on this site!  8)
Title: Re: Installing turbo on non turboed 8v71
Post by: Dreamscape on June 23, 2009, 09:00:42 PM
PM Don Fairchild, he will be the best to give you the dollar amount. There is more to change then add a turbo.

Paul
Title: Re: Installing turbo on non turboed 8v71
Post by: TomC on June 23, 2009, 10:25:40 PM
If you keep the same injectors, you'll have an engine that puts out a bit more horsepower, but more importantly will keep that horsepower at high altitudes.  If you keep the same injectors, you'll most likely only have to install the turbo and plumb it in.
If on the other hand you do what I did, then you have a custom air to air intercooler made, have Don Fairchild pull the engine out and also pull one of the cylinder kits to find what pistons and rings you have-in this case, mine was fine-so we kept the same high compression pistons and rings.  Then plumb up the turbo (used a 12.7 liter Series 60 turbo with waste gate to keep the boost down to around 15psi) to the air to air intercooler; change the injectors from brown tag N65 to 9G75's; change the blower to a bypass blower; increase the size of the muffler, air cleaner, and radiator; and had the V730 transmission rebuilt at the same time.  Cost?- $14,000.00.  Is it worth it? YES in my book-turboing the 8V-71 REALLY wakes it up.  Now I can drive in rolling hills and it doesn't slow down.  Only on long hills will it slow down.  Whatever you do going up a hill now, you'll do 10-15mph faster with the turbo setup.  Good Luck, TomC
Title: Re: Installing turbo on non turboed 8v71
Post by: rv_safetyman on June 24, 2009, 05:56:38 AM
Tom, I am writing an extensive article for BCM on the subject of engine conversions for buses.  However, I touch on "upgrading" an existing two-stroke engine.  I touched on your (and JC's) turbo upgrade, but your posting (above) is very well done.  would you mind if I quoted it?

Jim
Title: Re: Installing turbo on non turboed 8v71
Post by: TomC on June 24, 2009, 08:40:48 AM
Jim-go ahead and quote it-if you need more info-let me know.  TomC