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Registered User
Join Date: Nov 2009
Location: Raynham,MA
Posts: 43
Running Temp

I have been dealing with a running temp issue. I have owned my 930 for two years now but seldom have seldomly get the chance to ask other 930 owners their opinions on questions I come up with. I am located in MA. This time of year is not a problem but when the temp outside gets into the 80's my running temp climbs up to the top white hash mark on the temp guage. This is during normal and performance driving situations (obviously traffic times). I can't say the guage reads much higher than the top mark but when it does step up to the range and I am into boost occasionally I hear the dreaded noise. (cha ching cha ching). My 930 has the stock front fender oil cooler(euro model no fan) lines are in good shape, I have been inside the fan cavity ( no nests ). I do have a tear in the engine sheet metal seal which I mentioned in an earlier tread which I felt was my problem. Again my issue is only in the warm temps. What do we think?
Old 11-10-2009, 05:22 PM
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mark houghton's Avatar
Join Date: Jul 2008
Location: Central Washington State
Posts: 3,776
Outside temps of 80's is not that hot IMO. I get in the mid to upper 90's all summer long and don't reach near that high on the temp gauge just cruising down the highway. I wonder if the problem isn't with your oil temp thermostat?
Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 11-10-2009, 05:46 PM
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DonE's Avatar
Join Date: Mar 2004
Location: Brooks, GA
Posts: 1,211
Agree with Mark - mine failed (semi-closed) and spiked oil temp in traffic or moderate driving.
Old 11-10-2009, 07:03 PM
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drmatera's Avatar
Join Date: Aug 2009
Location: Nicholson, Ga
Posts: 2,160
i agree, in 90* temps here my car ran just above the line at the 8o'clock position. now that i'm EFI and have control of my timing i haven't seen temps even get up to that line. I have an oil temp gauge now, temps rarely get above 180* unless i sit and idle for ever, then once i'm moving it's back down to 178 or so.
Old 11-10-2009, 07:53 PM
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infraredcalvin's Avatar
Join Date: Sep 2007
Location: Ladera Ranch, CA
Posts: 1,271
Ahhh the old trombone cooler in the fender. In 90+ temps I would get up towards the top of the guage but only in LA traffic, once at cruising speed it would drop a little. It seemed that once it got that hot, it was never really happy until it was off and fully cooled down. I'd experience hot starting issues as well.

I finally broke down and installed the elephant racing widemouth cooler with fan. I've only had one temp issue, was stuck behind an accidnet for 2 hrs in 85+ weather, but once moving agian it went down to 170 deg within a minute of at speed driving. Haven't had any problems since.
Infraredcalvin - AKA Pat
'76 Turbo Carrera #311 - Factory LSD, Sport Seats
'75 914 GT clone project
'74 914 track basket-case
Old 11-10-2009, 08:50 PM
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Join Date: Feb 2008
Location: Seekonk, MA
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My car seems to have a bit of a cooling issue as well. I keep the car in SE Mass, so in the summertime it doesn't get too hot (80-90 is a hot day) and the needle stays a touch below 9 oclock with normal driving, will get a bit past 9 oclock with aggressive driving and can get way up past 10 oclock if stuck in traffic. My car has a decent amount of modifications and is still running the stock cooling setup w/out a fan. I am going to see if a fan will fix the problem and I may put a center mount oil cooler in as well (it has the right bodywork for it anyway!).
'86 930: 3.4 Andial build, Web GT2 Evo cams, Carrillo rods, ported/polished heads, MSD 6530, B&B headers/exh + intercooler, K27HF, 1 bar spring, Tial wastegate, Andial FE, Lindsey Fuchs. Back in black!!!
Past:997S cab; '88 930; '86 951; C5 Vette; 4th Gen Z28; 3rd Gen Trans Am GTA; '71 Z28
Old 11-11-2009, 12:20 PM
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