Headers on. Now what?
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Originally Posted by Tommy D
Most of the tuners require the lower stat.
that's unbelieveable. guess, that just shows how much some of these tuners don't know.how in the world can they require a 160 therm. before they will tune.
what's next, they gonna require headers ?
Le Mans Master
Joined: Aug 2004
Posts: 5,259
Likes: 16
From: Monroe Township New Jersey
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
St. Jude donor in memory of jpee '14
Originally Posted by Zig
what that's unbelieveable. guess, that just shows how much some of these tuners don't know.
how in the world can they require a 160 therm. before they will tune.
what's next, they gonna require headers ?
that's unbelieveable. guess, that just shows how much some of these tuners don't know.how in the world can they require a 160 therm. before they will tune.
what's next, they gonna require headers ?
Both stated that the cars "sweet spot" is around 185 degrees and that they would rather not maintain that temp with just the fans. Lets see if Howard is given the same information from his tuner
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Originally Posted by Tommy D
When I inquired about a tune the two individuals I contacted informed me that they would change the stock stat to a 160 degree stat in order to gain the most from their tune.
requiring someone to change to a lower temp. therm. in order to make changes to a/f, timing, fuel rates, etc. is just ridiculous.
Originally Posted by Tommy D
Both stated that the cars "sweet spot" is around 185 degrees and that they would rather not maintain that temp with just the fans.
is cooling being used to control preignition ? which uh, um.. the 'tune' should address anyway. (timing and preignition/detonation, not cooling)
if you're preignitiing you are too lean, which can be resolved with more fuel or less timing.
Last edited by Zig; Oct 17, 2006 at 05:36 AM.
Le Mans Master
Joined: Aug 2004
Posts: 5,259
Likes: 16
From: Monroe Township New Jersey
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
St. Jude donor in memory of jpee '14
Originally Posted by Zig
that makes a i little more sense, part of their tuning process includes switching to a lower temp. therm.
requiring someone to change to a lower temp. therm. in order to make changes to a/f, timing, fuel rates, etc. is just ridiculous.
see if they will tell you why the sweet spot is 185 degrees.
is cooling being used to control preignition ? which uh, um.. the 'tune' should address anyway. (timing and preignition/detonation, not cooling)
if you're preignitiing you are too lean, which can be resolved with more fuel or less timing.
requiring someone to change to a lower temp. therm. in order to make changes to a/f, timing, fuel rates, etc. is just ridiculous.
see if they will tell you why the sweet spot is 185 degrees.
is cooling being used to control preignition ? which uh, um.. the 'tune' should address anyway. (timing and preignition/detonation, not cooling)
if you're preignitiing you are too lean, which can be resolved with more fuel or less timing.
Remember, you can keep the engine cool either with more gasoline or lower coolant temps...... they must do the latter otherwise they would not change the thermostat. Look at the brighter side you really need to increase the cooling capacity (larger radiator $$$$$) so they cheat
with a lower stat & turn the fans on earlierIn any case I am waiting to see how Howard makes out
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Originally Posted by Tommy D
These guys tune for a living so they were not actually going to get into the nittty gritty. Since I was only "shopping" I thought they were more than helpful.
folks sometimes don't have time to talk shop when money is to be made. understandable.I would assume depending upon how rich or lean the car comes from the factory that there is a combination of changes made to the timing & fuel tables.
Originally Posted by Tommy D
In any case I am waiting to see how Howard makes out
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