HOW TO DO AN ADVANCED SEARCH.
Mon Jul 08, 2013 3:56 pm by Admin
For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.
When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).
After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …
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Operating temp
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nateporchevy
Punisher948
sharkey
wanczykj
8 posters
944Hybrids: 924/944/968 and 928 V8 Conversions :: 944 Conversions :: 5.3 and 4.8 LS based Conversions
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Operating temp
How hot should my steel block f body 5.3 liter run?
At idle it sits middle of the gauge, on the highway it runs right around 205 degrees F, and after being pushed it jumps up to 220 degrees F.
Should I be concerned?
At idle it sits middle of the gauge, on the highway it runs right around 205 degrees F, and after being pushed it jumps up to 220 degrees F.
Should I be concerned?
wanczykj- Posts : 41
Join date : 2014-04-18
Re: Operating temp
220 isnt too bad as long as it comes back down a bit after beating on it. from stock the fans on the ls engines dont really come on till 210 ish, and slowly ramp up till they hit 220-225.
sharkey- Posts : 714
Join date : 2014-11-21
Age : 39
Location : Abbotsford BC
Re: Operating temp
Thanks for the response. Its not coming down fast enough and the car actually died today. Turned on the heat and it cranked back up and I made it home right at 220 degrees.
Thinking its time to upgrade to a bigger water pump, just don't know which one.
Thinking its time to upgrade to a bigger water pump, just don't know which one.
wanczykj- Posts : 41
Join date : 2014-04-18
RE: Op Temps
wanczykj wrote:How hot should my steel block f body 5.3 liter run?
At idle it sits middle of the gauge, on the highway it runs right around 205 degrees F, and after being pushed it jumps up to 220 degrees F.
Should I be concerned?
tell us a little about your setup (i.e pump, radiator, etc). it may be something really simple but if you haven't read this article...it is full of useful bits for me anyway
http://www.pirate4x4.com/tech/billavista/Cooling/
Punisher948- Posts : 39
Join date : 2012-07-19
Age : 56
Location : Flint, MI
Re: Operating temp
I am running pure antifreeze as per the recommendation of a sales rep at O'reilly's.
Time to thin that stuff out and run distilled water at a 80/20 setup here in Houston.
Should have done a little more research. Had no idea that running pure antifreeze is a big no no.
Time to thin that stuff out and run distilled water at a 80/20 setup here in Houston.
Should have done a little more research. Had no idea that running pure antifreeze is a big no no.
wanczykj- Posts : 41
Join date : 2014-04-18
Re: Operating temp
yea pure antifreeze doesnt cool well. the only coolant i know that you can run without water is evans waterless coolant. stuff is supposed to work really well.
id be running max 70% antifreeze, 50/50 would be better. toss some water wetter or dei rad relief in it too.
id be running max 70% antifreeze, 50/50 would be better. toss some water wetter or dei rad relief in it too.
sharkey- Posts : 714
Join date : 2014-11-21
Age : 39
Location : Abbotsford BC
Re: Operating temp
Thanks for the reply, going to run 80% water and 20% antifreeze and will throw in a water wetter and go from there.
wanczykj- Posts : 41
Join date : 2014-04-18
Try a low temp thermostat
Try grabbing a low temp thermostat that opens at 160 instead of 180. this will offer more time for the heat to disapate
nateporchevy- Posts : 9
Join date : 2014-01-09
Age : 46
Location : El Paso
Re: Operating temp
Low temp t-stat won't make much difference, it's already open now.
As others have mentioned, run 50/50 water/antifreeze and then report back.
My car runs 170-180 on the street. I can't really get it over 200 even romping on it on the street. It'll go higher on the track...
As others have mentioned, run 50/50 water/antifreeze and then report back.
My car runs 170-180 on the street. I can't really get it over 200 even romping on it on the street. It'll go higher on the track...
docwyte- Posts : 1393
Join date : 2010-07-18
Re: Operating temp
Granted my motor is a 6.0L LS2 but on track I am seeing 195F, max, with a stock WP/Tstat and 95% water. Stock 951 fans + switch. Street is the same.
Note that my radiator is the unit from Wizard Cooling (click here) and it works really, really well.
Note that my radiator is the unit from Wizard Cooling (click here) and it works really, really well.
ausgeflippt951- Posts : 70
Join date : 2015-10-26
Location : Washington DC
Re: Operating temp
Colin you switched over to f-body accessories right? What's your clearance like between the fans and the accessories with that radiator/fan combo?
FrostedFlakeJake- Posts : 263
Join date : 2015-08-18
Re: Operating temp
FrostedFlakeJake wrote:Colin you switched over to f-body accessories right? What's your clearance like between the fans and the accessories with that radiator/fan combo?
It's tight but fine -- I had to make copious use of zip-ties. Radiator is thicker by a substantial margin (perhaps 0.5-0.75"). The water pump pulley is the only tight space -- no idea why these suckers are so darn large.
The closest anything gets to any of the rotating stuff is ~3/16", even though it looks closer in these pictures. Not really a big deal.
ausgeflippt951- Posts : 70
Join date : 2015-10-26
Location : Washington DC
Re: Operating temp
Collin, where did you get those shallow-head bolts for the alternator bracket? Are they a GM part? I have pretty much the same setup and I'm concerned about how close the bolt head is to the belt. I've mitigated it a bit since this photo with a smaller idler pulley, but I'm still not thrilled with the gap.
majormojo- Posts : 82
Join date : 2012-04-19
Re: Operating temp
Mojo you can try a JIS bolt which should have a 14mm head. Not much but might buy you a mm or two
FrostedFlakeJake- Posts : 263
Join date : 2015-08-18
Re: Operating temp
majormojo wrote:Collin, where did you get those shallow-head bolts for the alternator bracket? Are they a GM part? I have pretty much the same setup and I'm concerned about how close the bolt head is to the belt. I've mitigated it a bit since this photo with a smaller idler pulley, but I'm still not thrilled with the gap.
Ah, they're actually standard bolts -- the bracket is countersunk a bit to help recess the bolt head. You could purchase an end mill, stick it in your drill press, and countersink it yourself.
ausgeflippt951- Posts : 70
Join date : 2015-10-26
Location : Washington DC
944Hybrids: 924/944/968 and 928 V8 Conversions :: 944 Conversions :: 5.3 and 4.8 LS based Conversions
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