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Anyone run HQ radiator in HG with an Engine Fan
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Anyone??
Please contact me.
Cheers
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Yeah I am. There is not a real lot of difference. Just where it mounts to the body. You might have to drill some new holes, and maybe trim some of the radiator away. Pretty straight forward.
Engine fan is not big deal either. Just need the right spacer to get the fan as close to the radiator as possible.
Hope this helps.
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Thanks Edelbrock1 So heres some pics. Firstly, the fans about 50mm clear of the radiator. When the shrouds installed, the blades protrude about 10mm, so a 10-15mm spacer might be good 
Problem is, the shroud/fan alignment seems to be about right when the fan sits on top of the water pump pulley. So the things about 40mm out of alignment.  If I drop the radiator and fan any more than 15-25mm it will hit the swaybar, and the radiator is currenly located perfectly in the opening through the front sheetmetal. If it all lined up it would be great - check this photo. Maybe a bit snug - about 25mm clearance from shroud to throttle body cover.  Maybe I dont have factory engine mounts? Can anyone confirm for me?? Yeah I know the blocks gold - not my fault :)  Cheers Jeremy The G will roll again.... |
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I had HJ mounts on my HG 308 and the motor sat lower. The radiator hose was sitting on the stabaliser bar.Did a heap of kms like this with no issue. I got an after market plastic fan 17" and made it fit the viscous fan hub. Ran like a dream with good clearance issues for the fan.
75 HJ Sandman Pano
78 HZ BO6 Pano
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Hi Guys.
I think the problem with Jeremys fan & shroud alignment is that its an HQ shroud in an HG body. This puts the water pump centre too low in relation to the shroud. Its the same problem for those who have removed a 253/308 & fitted a small block Chev in its place & tried to keep the same shroud. It doesnt work, the water pump is again way off centre.
The fix would be to find an HT/G 253/308 shroud.
AGRO mentioned engine mounts being a different height. To my knowledge there is no difference in height. The problem with the lower radiator hose fouling the front sawy bar is well known. The 253/308 sway bars on those models has a bend to clear the hose. If you use a 6-cyl or Chev front bar it will hit.
Dr Terry
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quote:
Firstly, the fans about 50mm clear of the radiator. When the shrouds installed, the blades protrude about 10mm, so a 10-15mm spacer might be good
I always thought that to run a fan/shroud combo, the fan blades are most efficient with blade sitting half in, half out of the shroud. The theory is the fan will then be drawing air through, then throwing air outward, in a radial pattern, past the edge of the shroud. Achieves a far higher volume of air movement. Any thoughts? Utility8  |
utility8
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quote:
I always thought that to run a fan/shroud combo, the fan blades are most efficient with blade sitting half in, half out of the shroud. The theory is the fan will then be drawing air through, then throwing air outward, in a radial pattern, past the edge of the shroud. Achieves a far higher volume of air movement.
Any thoughts?
Id be interested in this as well.
75 HJ Sandman Pano 78 HZ BO6 Pano Edited by user Friday, 22 January 2010 8:19:40 AM(UTC)
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Thanks Terry
Ill go to homebush and take some measurements from one of their repros, and if it fixes the problem Ill see if theyll exchange it. Thats where I bought the HQ one from.
Are all 308 water paump shafts located in the same spot?
Cheers
Jeremy
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Fans dont throw air outwards (radially) unless they are designed to .Id say engine fans are designed to draw air through radiator and the fan shroud is there to maximise its efficiency.Setting the fan blades up half in half out dosent seem logical to me,if anything it may increase volume of air between radiator and fan but no effect on air flow possibly decrease it. As for radially where would it go ? into the bonnet unless its got vents or is set up with a gap at the hinges to let the heat out good to have even if it looks kooky.The flow your after is thru radiator thu shroud and out the back of the bonnet. Sounds like bs to me .cheers--keeo
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Didnt the raised back of bonnet myth start with a Bathurst team that had problems with alignment so told everyone it was for airflow through engine bay and then it became accepted practise? |
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Its used to be called the hot set up ha ha --keeo
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quote:
Originally posted by jpb308
Are all 308 water paump shafts located in the same spot?
Yes, they are all located at same height. There are different lengths though. Dr Terry _______________________________________ There are only 3 types of people in the world. 1. Those who make things happen. 2. Those who watch things happen. 3. Those who wonder what happened. |
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quote:
Originally posted by jpb308
Thanks Edelbrock1
So heres some pics.
Firstly, the fans about 50mm clear of the radiator. When the shrouds installed, the blades protrude about 10mm, so a 10-15mm spacer might be good
Problem is, the shroud/fan alignment seems to be about right when the fan sits on top of the water pump pulley. So the things about 40mm out of alignment.
If I drop the radiator and fan any more than 15-25mm it will hit the swaybar, and the radiator is currenly located perfectly in the opening through the front sheetmetal.
If it all lined up it would be great - check this photo. Maybe a bit snug - about 25mm clearance from shroud to throttle body cover.
Maybe I dont have factory engine mounts? Can anyone confirm for me??
Yeah I know the blocks gold - not my fault :)
Cheers
Jeremy
The G will roll again....
Those appear to be HQ-WB mounts. HT/G mounts are a bit different but I think they sit the motor pretty close. Difference is the HT/G adapter has "wings" on it and the engine mounts have bolts outside them that bolt onto these "wings", where the HQ-WB mount has the hidden studs out the back of them. Id advise trying what Dr Terry says, ie get the right shroud. _______________________________________________________ If we all had the same (good) taste, who would buy all the Fords? |
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Anyone run HQ radiator in HG with an Engine Fan
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