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blower motor upgrade

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Old Oct 26, 2010 | 01:11 AM
  #1  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Default Renix blower motor upgrade

any body figure this one out yet need more volume nothing wrong just looking for more volume

Last edited by freegdr; Oct 29, 2015 at 12:21 AM.
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Old Oct 26, 2010 | 08:42 AM
  #2  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
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the best you will ever get it is with a new blower motor resistor im looking for a harder blowing motor upgrade ya no

Last edited by freegdr; Oct 10, 2015 at 05:46 AM.
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Old Oct 26, 2010 | 10:03 AM
  #3  
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Engine: 4.0 with all of the noise and clatter
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Clean out the fins on the heater core and A/C evaporator, they tend to get clogged with dirt, dust, pet hair, and other junk. If those two things are packed full of crap, you won't get any output from the dash vents.
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Old Oct 26, 2010 | 10:42 AM
  #4  
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Year: 1989
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This probably won't help, but back when I had a cj5 I switched the blower motor out for a 4 speed unit from a '93 freightliner. mounting plate and everything was the same, had to enlarge the hole through the firewall slightly. It would put out enough heat to keep you toasty with the soft top and soft doors at 65 mph.
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Old Oct 26, 2010 | 10:51 AM
  #5  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
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Originally Posted by Bustedback
Clean out the fins on the heater core and A/C evaporator, they tend to get clogged with dirt, dust, pet hair, and other junk. If those two things are packed full of crap, you won't get any output from the dash vents.
done it thanks
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Old Oct 26, 2010 | 10:52 AM
  #6  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Originally Posted by MiracleRepair
This probably won't help, but back when I had a cj5 I switched the blower motor out for a 4 speed unit from a '93 freightliner. mounting plate and everything was the same, had to enlarge the hole through the firewall slightly. It would put out enough heat to keep you toasty with the soft top and soft doors at 65 mph.
yea on line they show a blazer or something that the motor fit cj but you cant find nothing on xjs
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Old Oct 26, 2010 | 10:54 AM
  #7  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
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it blows good but when it hits a100 degrees here i would like alittle more it gets hot in the glades when mudding
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Old Oct 26, 2010 | 12:35 PM
  #8  
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Yep, didn't want to jinx myself, so I'll just say I have no experience with the xj blowers. I found the freightliner would fit because I was changing blower motors in a semi and my jeep at the same time.
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Old Oct 27, 2010 | 12:14 PM
  #9  
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From: Broward County Fl.
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gonna not let this one go somebody has to of dabbled in this area
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Old Oct 27, 2010 | 12:28 PM
  #10  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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i think im gonna try hte chevy blazer motor ill patent it and make me some money
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Old Oct 27, 2010 | 12:28 PM
  #11  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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Engine: 12 hole bosch Injectors
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i think thats a good idea tell me what the out come is
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Old Oct 27, 2010 | 12:28 PM
  #12  
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From: Broward County Fl.
Year: 1989 xj sport 2dr
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ok ill keep you in formed
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Old Sep 23, 2011 | 11:10 PM
  #13  
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From: san jacinto
Year: 1989
Model: Cherokee
Engine: 4.0
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Originally Posted by freegdr
ok ill keep you in formed
Any updates? I have been searching for this mod on google for a while, and finally came across this one. I too want more volume of air.my ac speeds work good.
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Old Sep 23, 2011 | 11:53 PM
  #14  
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From: Modesto
Year: 1993
Model: Cherokee
Engine: 4.0 high output straight 6
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I think the best you could do is find an electric motor rebuilder have them strip the motor down and rewrap the stator.

Bigger wire on stator = less wire wraps = lower speed more torque

Thinner wire on stator = more wire wraps = higher speed less torque = more airflow

Don't see why it wouldn't work I used to rewrap my RC car motors all the time and it was awesome.

I might get a jy blower and rewrap it. I will post back if I decide to try
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Old Sep 24, 2011 | 03:35 PM
  #15  
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From: san jacinto
Year: 1989
Model: Cherokee
Engine: 4.0
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Sweet that's a good idea,looking forward to the updates.
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