C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

160 T-stat installed

Thread Tools
 
Search this Thread
 
Old Oct 31, 2006 | 05:57 AM
  #81  
Zig's Avatar
Zig
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)
Default

Originally Posted by HITMAN99
... The second parameter is the coolant temp itself ---- if it gets over 186 degrees, that also results in timing being pulled.
i just thought about this...so are you saying that timing begins to get pulled just as the 'stock' therm. begins to open ?
Reply
Old Oct 31, 2006 | 06:02 AM
  #82  
cbrf4i1's Avatar
cbrf4i1
Drifting
 
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
Default

Originally Posted by Zig
i just thought about this...so are you saying that timing begins to get pulled just as the 'stock' therm. begins to open ?
that quote from hitman regarding timing been pull at 186* ect is incorrect. so the answer to your question is, no. looking at the chart it looks like it starts at 212* and it could pull up to 3 degrees, i have the timing pull from ect chart if you wanted i can email to you.

Last edited by cbrf4i1; Oct 31, 2006 at 06:25 AM.
Reply
Old Oct 31, 2006 | 06:06 AM
  #83  
Zig's Avatar
Zig
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)
Default

Originally Posted by cbrf4i1
that quote from hitman regarding timing been pull at 186* ect is incorrect. so the answer to your question is, no. looking at the chart it looks like it starts at 212*, i have the timing pull from ect chart if you wanted i can email to you.
that would be excellent

how/where did you get the chart ?
Reply
Old Oct 31, 2006 | 06:24 AM
  #84  
cbrf4i1's Avatar
cbrf4i1
Drifting
 
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
Default

Originally Posted by Zig
that would be excellent

how/where did you get the chart ?
zig, just email you the chart, feel free to post it on this thread if you want, i don't have a way to posted it. thanks
Reply
Old Oct 31, 2006 | 06:47 AM
  #85  
davekp78's Avatar
davekp78
Melting Slicks
15 Year Member
 
Joined: Sep 2005
Posts: 2,670
Likes: 134
From: merritt island fl
C1 of Year Finalist (stock) 2019
2016 C1 of the Year Finalist
2015 C2 of the Year Finalist
Default

Originally Posted by smokinvette.com
I have a 170 degree thermostat installed... is there a big difference between this and the 160?
What temps do you run at normal cruise? Where did you get the 170 stat? Did you happen to test it for opening temp before you installed it?
Reply
Old Oct 31, 2006 | 08:33 AM
  #86  
HITMAN99's Avatar
HITMAN99
Drifting
 
Joined: Jul 2003
Posts: 1,796
Likes: 1
From: Annandale VA
Default

Originally Posted by cbrf4i1
that quote from hitman regarding timing been pull at 186* ect is incorrect. so the answer to your question is, no. looking at the chart it looks like it starts at 212* and it could pull up to 3 degrees, i have the timing pull from ect chart if you wanted i can email to you.
True dat --- my post was incorrect. I got my numbers mixed up, and my info came from another thread. 212 sounds correct to me.
Reply
Old Oct 31, 2006 | 08:46 AM
  #87  
Zig's Avatar
Zig
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)
Default

Originally Posted by HITMAN99
...that IAT is one of the parameters that will result in timing being pulled.
anyone got the 'chart' or settings the iat uses. ie temp and timing ?

if the ecm won't start pulling timing until 212 and we are able to keep the coolant temps under 212 with the 'stock therm.' at what temp does the iat begin to pull timing/advance.
Reply
Old Oct 31, 2006 | 09:39 AM
  #88  
gtodoug's Avatar
gtodoug
Burning Brakes
15 Year Member
 
Joined: Feb 2006
Posts: 903
Likes: 5
From: Miami FL
Default

Originally Posted by Zig
if the ecm won't start pulling timing until 212 and we are able to keep the coolant temps under 212 with the 'stock therm.' at what temp does the iat begin to pull timing/advance.
Spark will start being pulled @81.5* under light throttle and 90.5* under WOT operation.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-1

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-2

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-3

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-4

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-5

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-6

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-7

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-8

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-9

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
Old Oct 31, 2006 | 11:53 AM
  #89  
Zig's Avatar
Zig
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)
Default

Originally Posted by gtodoug
Spark will start being pulled @81.5* under light throttle and 90.5* under WOT operation.
any idea what the iat is at operating temp ?
Reply
Old Oct 31, 2006 | 02:31 PM
  #90  
cbrf4i1's Avatar
cbrf4i1
Drifting
 
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
Default

Originally Posted by gtodoug
Spark will start being pulled @81.5* under light throttle and 90.5* under WOT operation.

actually my charts on the iat shows it starts at 86* under light throttle and 95* for wot. zig, iat timing retard chart just got emailed to you, posted if you want.

Last edited by cbrf4i1; Oct 31, 2006 at 02:34 PM.
Reply
Old Oct 31, 2006 | 02:31 PM
  #91  
cbrf4i1's Avatar
cbrf4i1
Drifting
 
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
Default

Originally Posted by Zig
any idea what the iat is at operating temp ?
i will be doing some scanning this week, i will let you know.
Reply
Old Oct 31, 2006 | 02:42 PM
  #92  
Brett Hunter's Avatar
Brett Hunter
Drifting
20 Year Member
All Eyes On Me
 
Joined: Sep 2004
Posts: 1,551
Likes: 4
From: Livingston Texas
Default

It depends on what speed you are driving. The IAT can vary from ambient to 60* over. This is the same with all of the airbridges I have seen tested including the bottom breathers.
Reply
Old Nov 1, 2006 | 06:44 AM
  #93  
gtodoug's Avatar
gtodoug
Burning Brakes
15 Year Member
 
Joined: Feb 2006
Posts: 903
Likes: 5
From: Miami FL
Default

Originally Posted by cbrf4i1
actually my charts on the iat shows it starts at 86* under light throttle and 95* for wot. zig, iat timing retard chart just got emailed to you, posted if you want.
cbrf4i, my charts show the same thing, however it blends the cells next to each other. So if one cell is 77 and the next one is 86 that gives you a delta of 9* and it will pull timing right inbetween the two. What ever value is in that cell at 86* it will pull half of that number and ramp up to the full amount when it reaches 86*

hope that makes sense.

dougie
Reply
Old Nov 1, 2006 | 07:15 AM
  #94  
Zig's Avatar
Zig
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)
Default

Originally Posted by gtodoug
cbrf4i, my charts show the same thing, however it blends the cells next to each other. So if one cell is 77 and the next one is 86 that gives you a delta of 9* and it will pull timing right inbetween the two. What ever value is in that cell at 86* it will pull half of that number and ramp up to the full amount when it reaches 86*

hope that makes sense.

dougie
after looking at the 'iat timing retard chart', will be poseted once the pic gets approved, we don't have a chance, unless we always and only run during air temps. of 85 degrees or less.

the cell for 86 degrees iat and .32 cylinder air mass shows a value of -1 (minus one) for iat timing retard.

does this mean it pulls one degree of timing or does it reduce the advance rate by a value of -1.

at 86 degrees it uses the -1 value, which to me, means that at 85 degrees no adjustment is made.

i know, finding the 'wind chill' effect is not a valid method to obtain temp. based upon outside air temp and wind speed but according to the chart we don't have a chance, anytime air temp is over 85 degrees the iat will at least be that amount. or am i wrong ?

edit: the chart does show that we can go up to 94 degrees and a cylinder airmass of .72 and above will result in no timing change. at 85 degrees and .32 cylinder airmass of .32 to .39 results in -1, .40 is -2, .44 is -3, .48 to .68 is -4, then .72 up is 0.

Last edited by Zig; Nov 1, 2006 at 07:22 AM.
Reply
Old Nov 1, 2006 | 09:27 AM
  #95  
Zig's Avatar
Zig
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)
Default ect chart

Originally Posted by cbrf4i1
zig, just email you the chart, feel free to post it on this thread if you want, i don't have a way to posted it. thanks
here's the ect chart.

Reply
Old Nov 1, 2006 | 03:34 PM
  #96  
cbrf4i1's Avatar
cbrf4i1
Drifting
 
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
Default

Originally Posted by gtodoug
cbrf4i, my charts show the same thing, however it blends the cells next to each other. So if one cell is 77 and the next one is 86 that gives you a delta of 9* and it will pull timing right inbetween the two. What ever value is in that cell at 86* it will pull half of that number and ramp up to the full amount when it reaches 86*

hope that makes sense.

dougie
dougie, i think you and i have a different chart. can you post your chart? thanks
Reply
Old Nov 1, 2006 | 03:37 PM
  #97  
cbrf4i1's Avatar
cbrf4i1
Drifting
 
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
Default

Originally Posted by Zig
after looking at the 'iat timing retard chart', will be poseted once the pic gets approved, we don't have a chance, unless we always and only run during air temps. of 85 degrees or less.

the cell for 86 degrees iat and .32 cylinder air mass shows a value of -1 (minus one) for iat timing retard.

does this mean it pulls one degree of timing or does it reduce the advance rate by a value of -1.

at 86 degrees it uses the -1 value, which to me, means that at 85 degrees no adjustment is made.

i know, finding the 'wind chill' effect is not a valid method to obtain temp. based upon outside air temp and wind speed but according to the chart we don't have a chance, anytime air temp is over 85 degrees the iat will at least be that amount. or am i wrong ?

edit: the chart does show that we can go up to 94 degrees and a cylinder airmass of .72 and above will result in no timing change. at 85 degrees and .32 cylinder airmass of .32 to .39 results in -1, .40 is -2, .44 is -3, .48 to .68 is -4, then .72 up is 0.
zig, your total timing advance will be -1, doesn't really matter if it is retarding by -1 or -1 on the advance. and yes, we have no chance if the ambient is above 85*, you can have your car tune to make the timing retard less aggressive, but you certainly don't want to remove it completely to protect your engine. you feel sorry for me now? i am in AZ, 10 months a year the high of the day is above 86*....but i hate snow...

Last edited by cbrf4i1; Nov 1, 2006 at 06:03 PM.
Reply

Get notified of new replies

To 160 T-stat installed

Old Nov 1, 2006 | 08:28 PM
  #98  
Zig's Avatar
Zig
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)
Default

Originally Posted by cbrf4i1
i am in AZ, 10 months a year the high of the day is above 86*....but i hate snow...
that has got to rough trying to compare times, etc. with folks in other parts of the country.

snow ain't all that bad. some of the 'strangest' christmas' i've ever spent were in L.A. , it's just something about sunny, 70 and mild that doesn't really say christmas.
Reply
Old Nov 1, 2006 | 11:59 PM
  #99  
Tommy D's Avatar
Tommy D
Le Mans Master
10 Year Member
St. Jude 10 Year Donor
 
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
Default

Originally Posted by cbrf4i1
you feel sorry for me now? i am in AZ, 10 months a year the high of the day is above 86*....but i hate snow...

You will never get enough cool dense air........... we need to make you an air conditioner to cool the intake charge (just like an intercooler cools the hot supercharged/turbocharged air)

Call me crazy...... I forget which ac line remains cold but if you added a section and ran it through the air intake. You have to run the ac any way because it is hotter than hell in AZ
Reply
Old Nov 2, 2006 | 12:24 AM
  #100  
cbrf4i1's Avatar
cbrf4i1
Drifting
 
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
Default

Originally Posted by Tommy D
You will never get enough cool dense air........... we need to make you an air conditioner to cool the intake charge (just like an intercooler cools the hot supercharged/turbocharged air)

Call me crazy...... I forget which ac line remains cold but if you added a section and ran it through the air intake. You have to run the ac any way because it is hotter than hell in AZ
tommy, believe me, i even look into water injection and decided against it. not only it is hotter then hell here, i also got 1250 ft of elevation too, i guess it is still better then dever...
Reply



All times are GMT -4. The time now is 11:15 PM.

story-0
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-1
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-2
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-3
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-4
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-5
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-6
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-7
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-8
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-9
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE