870 - 500 ft hose run

[Jim Davisson]

Right! Something vacuum controlled in the system perhaps that can't exceed 13" hg. Number toting manufacturers usually don't detune something like that without a good reason. I always thought that Hydramaster had mine running 2" under manufacturers spec because of strain on the power transmission of single belt serpentine PTO pulley.

However, playing devil's advocate it's not going to affect dry times whether it's 13 or 15. Heck it's darn near impossible to pin the lift while actually cleaning anyway.

 

[Harry Mullett]

Dang, who wants to handle that much hose?

 

[Joshua Johnson]

Yo mama.

 

[Anderson]

if the spec sheet is right you have a 63hp ford
and a trifold blower rated at 650 cfm

 

[Harry Mullett]

That is better then the hose you & your daddy handle.

 

[Anderson]

4.5 blower at max output is around 380 cfm
4.7 blower is areound 500cfm
5.6. Blower is around 520 cfm

It depends on what is the rpm pully and exctly what the blower is
Spinning and holding its rpms...wo bogging down......

Most of these truckmounts do not spin at max rpm!!!!!!
So I would knock off around 100 cfm??????

However I have found that a 4.5 blower at 3600 rpm and
A 4.7 blower even at 3200 rpm is significantly more vacuum

 

[Blacktiedetailing]

Anyone know why saphire says not to adjust it past 13 hg when the actual blower manual says max is 15 hg?

I have mine set at 15. There is always air leaks so the max will never really be 15 anyway