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Tuners input needed ASAP

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Old Sep 20, 2008 | 08:25 PM
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Tuners input needed ASAP

I finally have the daily driver back together and my_bd and myself havea couple of issues such as the s/c boost bypass valve keeps opening and closing at idle. Perplexing.
Also the MAF sensor reading seem to be way too low. Any thoughts on the cause for this?We are running in VE and it runs much better than in MAF. At 3,000 rpms the car sounds great, no mise-fires, no codes.

Thanks,

Rod
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Old Sep 21, 2008 | 10:58 AM
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Latest issue with the DD

Originally Posted by Area47
if you want some fun things to play with. shut off the maf, or unplug it. stick it in speed density mode for a while till the motor is broken in. or you get a new maf.
We have already done so and it runs better that way, but then we get another issue which is that:

While running in VE mode with the idle set to 1,000rpms, it idles quite well while in FTC 37 (evap closed?)
but
leans out severely as soon as it switches to FTC 17 (evap open?)

Any ideas??
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Old Sep 21, 2008 | 01:46 PM
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Vacuum leak somewhere?
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Old Sep 21, 2008 | 01:49 PM
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Haz l33t wheelz.
 
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rod, was it the issue with the Intake being backwards?
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Old Sep 22, 2008 | 07:51 AM
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Originally Posted by ls1fbody
rod, was it the issue with the Intake being backwards?
Once the lower piece of the intake was switched around and the MAF was able to work properly the other issues corrected themselves.

We now have the job of tuning in the car and we are close to putting it on the road for a load test. Obviously the cams are adding another layer of complexity to tuning, especially when we already have to deal with the larger TB and the TVS.

my_bd and I have hooked up the wideband and Interceptor so I have some cleanup to do as well as throw on the tires and the hood.

Soon I will be back on the road in a SS
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Old Sep 22, 2008 | 07:59 AM
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have i told you i love you? that and your "DD" will smoke the snot outta mine.

that and i think you'll have THE fastest non-sponsored Cobalt ever. unless you are?

Last edited by ls1fbody; Sep 22, 2008 at 07:59 AM. Reason: Automerged Doublepost
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Old Sep 22, 2008 | 08:07 AM
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Originally Posted by ls1fbody
have i told you i love you? that and your "DD" will smoke the snot outta mine.

that and i think you'll have THE fastest non-sponsored Cobalt ever. unless you are?


The DD definitely sounds like it wants to chew up the road
Too bad I don't know enough about the tuning part *yet* because I have to wait a bit as my tuner (my_bd) has a day job

My project car is 95% funded by me and the wife. I have minor sponsors which don't amount to anything significant. Although (hopefully), I may be able to get sponsors after the fact to help with racing costs.
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Old Sep 22, 2008 | 08:55 AM
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Wow man, glad to hear that it will be on the road soon. Looks like it will be beastin everything once it get out lol.
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Old Sep 22, 2008 | 08:58 AM
  #9  
ls1fbody's Avatar
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****, maybe someday you'll be sponsoring us! haha
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Old Sep 22, 2008 | 09:07 AM
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Originally Posted by MarqueDo7BabyBalt
Wow man, glad to hear that it will be on the road soon. Looks like it will be beastin everything once it get out lol.
The DD will be a good way to amuse myself until the real beast gets finished.
Originally Posted by ls1fbody
****, maybe someday you'll be sponsoring us! haha
Yeah, after I pay off the project car. The problem with good credit is a higher limit.
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Old Sep 22, 2008 | 09:11 AM
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Originally Posted by victory_red_SS
The DD will be a good way to amuse myself until the real beast gets finished.

Yeah, after I pay off the project car. The problem with good credit is a higher limit.
Whats your dd.
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Old Sep 22, 2008 | 09:13 AM
  #12  
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another SS cobalt
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Old Sep 22, 2008 | 10:34 AM
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Originally Posted by ls1fbody
another SS cobalt
Oh dam, didnt know that lol, thats tight. Is it the sc or just reg.
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Old Sep 22, 2008 | 10:50 AM
  #14  
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dude, its an LSJ, cammed with a TVS, well, cliff notes anyways.
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Old Sep 22, 2008 | 12:03 PM
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Originally Posted by ls1fbody
Originally Posted by MarqueDo7BabyBalt
Originally Posted by ls1fbody
Originally Posted by MarqueDo7BabyBalt
Whats your dd.
another SS cobalt
Oh dam, didnt know that lol, thats tight. Is it the sc or just reg.
dude, its an LSJ, cammed with a TVS, well, cliff notes anyways.


Yes it is a '06 SS/SC with all the possible bolt ons as well as a cams/P&P'ed head, pistons and a few other stronger internal parts to support the TVS blower.
This the car we have been working on this past couple of weeks. The rwd project car is still a few months away from being done.
The reason I look forward to having the DD on the road if to take my mind off of the project car as to well have some fun driving. Right now I am driving a 6.0l '01 Silverado and it isn't fun.
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Old Sep 22, 2008 | 04:44 PM
  #16  
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Originally Posted by ls1fbody
dude, its an LSJ, cammed with a TVS, well, cliff notes anyways.
DAM

Originally Posted by victory_red_SS


Yes it is a '06 SS/SC with all the possible bolt ons as well as a cams/P&P'ed head, pistons and a few other stronger internal parts to support the TVS blower.
This the car we have been working on this past couple of weeks. The rwd project car is still a few months away from being done.
The reason I look forward to having the DD on the road if to take my mind off of the project car as to well have some fun driving. Right now I am driving a 6.0l '01 Silverado and it isn't fun.
Dam man what do you do for living.

Last edited by MarqueDo7BabyBalt; Sep 22, 2008 at 04:44 PM. Reason: Automerged Doublepost
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Old Sep 23, 2008 | 02:01 AM
  #17  
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Originally Posted by MarqueDo7BabyBalt
DAM



Dam man what do you do for living.
Not enough to support my habit.
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Old Sep 23, 2008 | 02:05 AM
  #18  
ls1fbody's Avatar
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haha, i wish i were as reckless as you rod. damn...
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Old Sep 23, 2008 | 02:07 AM
  #19  
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Originally Posted by ls1fbody
haha, i wish i were as reckless as you rod. damn...
And my wife wishes I wasn't.
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Old Sep 23, 2008 | 02:12 AM
  #20  
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Originally Posted by victory_red_SS
And my wife wishes I wasn't.

btw tell andrew i need him to scan my car again see if its misfireing at idle any more since the dealer finally replaced the timing chain assembly noise has never happened again i wanna see how its doing and if when i put on the gas in 3rd gear if its dumping a crap of fuel to compensate for the unusual heat of the cat-converter lol maybe i can go when you and andrew are doing some stuff with the DD i'd love to see it
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Old Sep 23, 2008 | 02:36 AM
  #21  
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Originally Posted by victory_red_SS
Not enough to support my habit.
Yea tell me about it lol
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Old Sep 23, 2008 | 10:59 AM
  #22  
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Originally Posted by eurochevy

btw tell andrew i need him to scan my car again see if its misfireing at idle any more since the dealer finally replaced the timing chain assembly noise has never happened again i wanna see how its doing and if when i put on the gas in 3rd gear if its dumping a crap of fuel to compensate for the unusual heat of the cat-converter lol maybe i can go when you and andrew are doing some stuff with the DD i'd love to see it
Andrew is coming over again on Friday as we are going to to finish tuning (for the most part) at a local dyno shop. I will mention to him your need to be scanned.



Originally Posted by MarqueDo7BabyBalt
Yea tell me about it lol
You too huh
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