Engine Temperature hotter after header installation.
Thread Starter
Racer
Joined: Jan 2009
Posts: 286
Likes: 0
From: Madison MS
Engine Temperature hotter after header installation.
After I have installed 1 3/4" headers with catted x-pipe my 2008 LS3 A6 is running a little hotter. Around 220 degrees. I do notice that when driving on the highway, the temp drops to about 210 which is where it was always at before headers. First question is, is this normal? Secondly, at what temperature should I start worrying? Please give me your input.
Thanks
Neil
Thanks
Neil
Melting Slicks
Joined: May 2008
Posts: 2,121
Likes: 2
From: CT
After I have installed 1 3/4" headers with catted x-pipe my 2008 LS3 A6 is running a little hotter. Around 220 degrees. I do notice that when driving on the highway, the temp drops to about 210 which is where it was always at before headers. First question is, is this normal? Secondly, at what temperature should I start worrying? Please give me your input.
Thanks
Neil
Thanks
Neil
Melting Slicks
Joined: May 2004
Posts: 3,017
Likes: 2
After I have installed 1 3/4" headers with catted x-pipe my 2008 LS3 A6 is running a little hotter. Around 220 degrees. I do notice that when driving on the highway, the temp drops to about 210 which is where it was always at before headers. First question is, is this normal? Secondly, at what temperature should I start worrying? Please give me your input.
Thanks
Neil
Thanks
Neil
Drifting
Joined: Jul 2006
Posts: 1,786
Likes: 93
From: Charlotte N.C.
I would say tuning is a good idea because the headers reduced backpressure and made the car more efficient. This could have translated into higher Exhaust gas Temperatures. In any case I would go to a 160 degree thermostat and you will be back below 200 degrees.
Safety Car
Joined: Aug 2006
Posts: 4,206
Likes: 6
From: Makena, Maui & NM
One oddity I have seen in some stock LS3's is the fan does not seem to come on at all until above 210*.
I dont see anything out of normal, unless you are running those temps on the freeway at current 40-50* ambient in Mo. Then for sure you got a problem.
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Thread Starter
Racer
Joined: Jan 2009
Posts: 286
Likes: 0
From: Madison MS
Did your tuner not suggest a 160 t-stat? Did he tune the fan settings?
One oddity I have seen in some stock LS3's is the fan does not seem to come on at all until above 210*.
I dont see anything out of normal, unless you are running those temps on the freeway at current 40-50* ambient in Mo. Then for sure you got a problem.
One oddity I have seen in some stock LS3's is the fan does not seem to come on at all until above 210*.
I dont see anything out of normal, unless you are running those temps on the freeway at current 40-50* ambient in Mo. Then for sure you got a problem.
Safety Car
Joined: Aug 2006
Posts: 4,206
Likes: 6
From: Makena, Maui & NM
My tuner says the 160 t-stat will not do me any good. He did tune the fan settings for me. He said 226 is normal. He also said that the aluminum block engines like the heat and that GM doesnt consider the new corvettes to be running hot until they reach 256 degrees. I am going to take back to him to have him tune the fans to come on at 200 which he said will make my car hover around 210ish
Melting Slicks
Joined: May 2004
Posts: 3,017
Likes: 2
The stock fan setting is already supposed to come on at 199* at around 15% and 214* at 47% . Thus, I am curious to what he set them at. Sounds like he didnt do much. For example, you might set the fan to 90% at say 214 setting, 70% at 210 setting, 50% at 207 etc. I have a 160 myself and like many others, have fan set at 90% at 199*. In any event, good luck.
Thread Starter
Racer
Joined: Jan 2009
Posts: 286
Likes: 0
From: Madison MS
