few problems with my hawk
few problems with my hawk k, first thing first. does anyone have trouble starting it up in the monring? when itz cold? my car surges real bad and it dies. then it takes couple of min to restart it. i have to idle it @ 1500-2000rpm for min or two in order to stay alive. what could be wrong? my car isnt stock. h/c/full bolt on.
Originally Posted by TX_SS
k, first thing first. does anyone have trouble starting it up in the monring? when itz cold? my car surges real bad and it dies. then it takes couple of min to restart it. i have to idle it @ 1500-2000rpm for min or two in order to stay alive. what could be wrong? my car isnt stock. h/c/full bolt on.
Originally Posted by TX_SS
k, first thing first. does anyone have trouble starting it up in the monring? when itz cold? my car surges real bad and it dies. then it takes couple of min to restart it. i have to idle it @ 1500-2000rpm for min or two in order to stay alive. what could be wrong? my car isnt stock. h/c/full bolt on.
had the same problem with my car, battery kept draining so i replaced it and it fixed it.
then my car started to do it again a week later, replaced the o2's, both were shot, and cleaned the maf. was a few months ago, and have had no prob since.
then my car started to do it again a week later, replaced the o2's, both were shot, and cleaned the maf. was a few months ago, and have had no prob since.
tuning... That is your problem...
there are tables that need to be adjusted for "cold starts"... ( winter + H/C + 90/90)
"speaking from experience"
It's an easy fix... for a capable tuner...
there are tables that need to be adjusted for "cold starts"... ( winter + H/C + 90/90)
"speaking from experience"
It's an easy fix... for a capable tuner...
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Your VE tables and open loop fueling tables are probably not adjusted according to your mods. When the car is dead cold, it's in open loop and runs primarily off the VE tables and open loop fueling table. Unless you've made some revisions to those tables, I would expect that to be your problem. Definitely fixable with a good driveability tune (we're not talking a WOT tune).
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
8 Sec Tuner
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Originally Posted by Patrick G
Your VE tables and open loop fueling tables are probably not adjusted according to your mods. When the car is dead cold, it's in open loop and runs primarily off the VE tables and open loop fueling table. Unless you've made some revisions to those tables, I would expect that to be your problem. Definitely fixable with a good driveability tune (we're not talking a WOT tune).
You are correct sir!
Originally Posted by TX_SS
anyone else?? i guess ill be replacing the battery and o2 sensors..
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Originally Posted by Patrick G
You've already been given your answer. Go get the open loop fueling adjusted correctly for your mods and enjoy the music! On a 25 degree day, my car starts up without protest, without bad idling or surging, and without drama. It wouldn't behave that well before it was tuned. Battery and sensors are important to have in top working order, but for what it's worth, I don't even use O2 sensors or MAF with my car. Set it right with the wide-band and go down the road!
Originally Posted by TX_SS
ive already got my car tuned. they checked everything and it still does it..
Originally Posted by 98 Raptor TA
Some tuners think they know everything and are incorrect. A friend had a problem with his SS and took it to at least 3 different tuners and they all blamed the issue on something besides the tune. It ended up being in the tune.
Originally Posted by TX_SS
ive already got my car tuned. they checked everything and it still does it..
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Originally Posted by Patrick G
So how long did you have to leave it with them to allow them to dial in the A/F ratio with it dead cold? How many days did they get to keep it so the desired idle airflow was spot-on for every temperature from 0 degrees to 200+? How much more did they charge you to do all of this open loop tuning with a wide-band O2 sensor? I'm just curious since you say it's already tuned, they must have done everything I'm talking about. If they only had your car for a short time (like less than 4 hours), then just be open-minded enough to think that there may be some tuning left to do. I'm not implying that your tuner didn't do all of this, but for 95% of the people out there, most tuners don't make enough money to justify doing it all the way like I'm talking about.
Originally Posted by V6 Bird
He left the car with them for a week while he was on vacation. They didnt get to the car until towards the end of the week. And He couldnt drive it much because Davids tires are bald and it was raining/iced over for at least 1 day while they had at towards the end of the week. This car did not receive a Speed Density tune though either. It still has the MAF connected and operating since the cam is rather small. David's car has a few issues that first have to attended to. We've already sent the TB back to FAST for a sticking issue. They spec'd it and commented on the nice port work, and sent it back. No issues found on their test mule engine dyno. His car is also a TCS car which im going to run a cable straight to the TB and see how that acts on this TB. The blade doesnt close all the way. Chances are good the tuner wasnt aware or couldnt feel it sticking so he made changes to tables with a mechanical issue present and once we get it fixed he will have to retune those areas regardless. he may have been trying to compensate for this such thing in the tune.
what he said..
now my car is @ TDP. my clutch pedal finally gave up and stuck to tha bottom. plus my reverse gear is fucked up. i hate this POS.
