post AIT
Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 8,862
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From: PA
St. Jude Donor '08
well i guess there arent alot of self tuners here
well what is acceptable ait on a 1/4 run?
i would guess that 175 wouldnt be good..
NOTHING CHANGED from two nights prior....ait were 117.
same trim settings same alky approx same ambient temps....
when i get some time ill put a gauge on the pressure side of the pump to get a reading.
well what is acceptable ait on a 1/4 run?
i would guess that 175 wouldnt be good..
NOTHING CHANGED from two nights prior....ait were 117.
same trim settings same alky approx same ambient temps....
when i get some time ill put a gauge on the pressure side of the pump to get a reading.
Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 8,862
Likes: 85
From: PA
St. Jude Donor '08
Originally Posted by diynoob
I have some data Nick, but it's real old. I have never seen 170+ IAT. You're measuring after the intercooler, right?
yup and after the alky too.....
17X is not good but why the difference from one night to the other?
Burning Brakes
Joined: Nov 1999
Posts: 1,221
Likes: 59
From: Abingdon VA
Originally Posted by NICK YOSKIN
well i guess there arent alot of self tuners here
well what is acceptable ait on a 1/4 run?
i would guess that 175 wouldnt be good..
NOTHING CHANGED from two nights prior....ait were 117.
same trim settings same alky approx same ambient temps....
when i get some time ill put a gauge on the pressure side of the pump to get a reading.
well what is acceptable ait on a 1/4 run?
i would guess that 175 wouldnt be good..
NOTHING CHANGED from two nights prior....ait were 117.
same trim settings same alky approx same ambient temps....
when i get some time ill put a gauge on the pressure side of the pump to get a reading.
A 60 degree delta suggests your alky isn't working.
At 16psi I get 165F at the end of a 1/4 mile without alky....much lower with the alky.
Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 8,862
Likes: 85
From: PA
St. Jude Donor '08
Originally Posted by jersey jay
anywhere from ambient to -20 below outside ambient last time I logged with the alky spraying.
IOW 100 outside ambient my iats were 80-100 depending on how much I was spraying.
IOW 100 outside ambient my iats were 80-100 depending on how much I was spraying.
jay that is a little unbeliveable!! how long of a blast? 0 to 145 is stout
i ran my car 0 to 145 and the gain was 3/4 to max and my ait were 17x.
that is horrible for sure but the other night i ran the same speed and temps got to max of 11X. that is more resonable. once again nothing was adjusted nor a different type of alky was used. vapor lock? doubt it ambeint temps the same....... alcky level in the tank both were full..
Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 8,862
Likes: 85
From: PA
St. Jude Donor '08
Originally Posted by onfire
A 60 degree delta suggests your alky isn't working.
At 16psi I get 165F at the end of a 1/4 mile without alky....much lower with the alky.
At 16psi I get 165F at the end of a 1/4 mile without alky....much lower with the alky.
MY POINT EXACTLY!
ITS PUMPING ALKY as when i hit the test button i see ar drop but that doesnt mean the pump is making the proper pressure when need. i wanna put a gauge on it but why??????? i already know that it worked the other night now it seems to not work?
cannot be electrical as like i said it sprays but.....not enough. turn up the gain? no like i said it was fine and no adjustments
Last edited by NICK YOSKIN; Aug 22, 2006 at 10:44 PM.
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Team Owner
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St. Jude Donor '03 through '17
Outside ambient when I logged was 85 and the blast was from 40-130 with the tires spinning. How long of a blast, not that long as you well know. 
Originally Posted by NICK YOSKIN
jay that is a little unbeliveable!! how long of a blast? 0 to 145 is stout
i ran my car 0 to 145 and the gain was 3/4 to max and my ait were 17x.
that is horrible for sure but the other night i ran the same speed and temps got to max of 11X. that is more resonable. once again nothing was adjusted nor a different type of alky was used. vapor lock? doubt it ambeint temps the same....... alcky level in the tank both were full..
i ran my car 0 to 145 and the gain was 3/4 to max and my ait were 17x.
that is horrible for sure but the other night i ran the same speed and temps got to max of 11X. that is more resonable. once again nothing was adjusted nor a different type of alky was used. vapor lock? doubt it ambeint temps the same....... alcky level in the tank both were full..
[/IMG]
Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 8,862
Likes: 85
From: PA
St. Jude Donor '08
Originally Posted by jersey jay
Outside ambient when I logged was 85 and the blast was from 40-130 with the tires spinning. How long of a blast, not that long as you well know.
well if that is true then something is wrong...again
Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 8,862
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From: PA
St. Jude Donor '08
just ran the car and iat started out 66 and ended at 82. run was 0 to 144. **** turned up all the way and ambient 66.
then 3 minutes later ran the car again and the ait were 72 at the start and spiked to 129. that run was from a roll at 30 mph to 122.
well its clear that the that it wasnt working on the second run.
what could be the issue?
then 3 minutes later ran the car again and the ait were 72 at the start and spiked to 129. that run was from a roll at 30 mph to 122.
well its clear that the that it wasnt working on the second run.
what could be the issue?
Team Owner
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St. Jude Donor '03 through '17
Ce your alky no worky Senior. 
It's got issues for sure be it the pump, brain, gain **** or a loose wire but what it's doing is just not right. I would look at all the connections first to make sure that they aren't the issue. From there it's a crap shoot so I would call Julio and have him send a whole new kit and just return this one being you've has problems in the past.
It's got issues for sure be it the pump, brain, gain **** or a loose wire but what it's doing is just not right. I would look at all the connections first to make sure that they aren't the issue. From there it's a crap shoot so I would call Julio and have him send a whole new kit and just return this one being you've has problems in the past.
Supporting Vendor
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From: http://www.mphparts.com 800-364-1975
Are you running SD? If not, the fact that your IAT sensor is after the alky may have helped suppress detonation in that the higher IATs likely retarded timing more than you would ordinarily see with the alky on.
Burning Brakes
Joined: Nov 1999
Posts: 1,221
Likes: 59
From: Abingdon VA
Originally Posted by NICK YOSKIN
just ran the car and iat started out 66 and ended at 82. run was 0 to 144. **** turned up all the way and ambient 66.
then 3 minutes later ran the car again and the ait were 72 at the start and spiked to 129. that run was from a roll at 30 mph to 122.
well its clear that the that it wasnt working on the second run.
what could be the issue?
then 3 minutes later ran the car again and the ait were 72 at the start and spiked to 129. that run was from a roll at 30 mph to 122.
well its clear that the that it wasnt working on the second run.
what could be the issue?
Run it back to back with the alky off both runs.
Thread Starter
Le Mans Master
Joined: Oct 2003
Posts: 8,862
Likes: 85
From: PA
St. Jude Donor '08
Originally Posted by jersey jay
Ce your alky no worky Senior.
It's got issues for sure be it the pump, brain, gain **** or a loose wire but what it's doing is just not right. I would look at all the connections first to make sure that they aren't the issue. From there it's a crap shoot so I would call Julio and have him send a whole new kit and just return this one being you've has problems in the past.
It's got issues for sure be it the pump, brain, gain **** or a loose wire but what it's doing is just not right. I would look at all the connections first to make sure that they aren't the issue. From there it's a crap shoot so I would call Julio and have him send a whole new kit and just return this one being you've has problems in the past.
yeah its starting to get old!
Last edited by NICK YOSKIN; Aug 23, 2006 at 09:49 AM.
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From: Knoxville Tennessee
http://forums.corvetteforum.com/show....php?t=1445575
I did a pull this morning.. it was about 70, 73 IAT... car moved down to 70 on a 3rd gear pull. No room for a 4th gear pull. It is a bit hard to tell when the tires are spinning.. you really need that pull through a full gear.
As we discussed... 7 psi turn on, full pressure at about 13 psi. When I vary boost I get varied alky, as expected.
I did a pull this morning.. it was about 70, 73 IAT... car moved down to 70 on a 3rd gear pull. No room for a 4th gear pull. It is a bit hard to tell when the tires are spinning.. you really need that pull through a full gear.
As we discussed... 7 psi turn on, full pressure at about 13 psi. When I vary boost I get varied alky, as expected.