Turbo installed, Headers cherry red @ idle, Backfireing?!
12-11-2007, 02:34 PM
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Turbo installed, Headers cherry red @ idle, Backfireing?!
looked it up on line... it could be timeing, or fuel, anyone else have this problem?!
12-11-2007, 05:18 PM
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Car is at the shop. after extencive reasearching ive narrowed it down to the timieng, it seems alot of ppl have had the same problem due to timing be retarted, and/or vaccume leaks, please excuse my spelling =)
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12-11-2007, 05:27 PM
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the manifold is heating up dued to a delayed spark causing fuel to go into the exhaust manifold (headers) when the fuel ignites it raises the temp in the headers, i need a new tune, its the timing i think... not saying alot of people on here have had that problem, google+yahoo answers helped me out alot...
12-11-2007, 05:38 PM
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Originally Posted by djclongisland
the manifold is heating up dued to a delayed spark causing fuel to go into the exhaust manifold (headers) when the fuel ignites it raises the temp in the headers, i need a new tune, its the timing i think... not saying alot of people on here have had that problem, google+yahoo answers helped me out alot...
12-11-2007, 05:55 PM
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well when i went to pick up the car the vdc off light and the slip light was on, usually that means the MAF sensor is bad or not plugged in, i was ready to take it home when we saw a glow in the engine bay (car was idoling for about 5 min) and it started to backfire @ idle... we lifted it up, and he said he would take a look @ it tomorrow, i was on the verge of tears haha, i tought my motor was messed up bad, after a few hours online i found a bunch of articles
hopefully it is the timing
hopefully it is the timing
12-11-2007, 06:36 PM
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Originally Posted by djclongisland
well when i went to pick up the car the vdc off light and the slip light was on, usually that means the MAF sensor is bad or not plugged in, i was ready to take it home when we saw a glow in the engine bay (car was idoling for about 5 min) and it started to backfire @ idle... we lifted it up, and he said he would take a look @ it tomorrow, i was on the verge of tears haha, i tought my motor was messed up bad, after a few hours online i found a bunch of articles
hopefully it is the timing
hopefully it is the timing
12-11-2007, 06:50 PM
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NO not at all... hes awsome, we only noticed it when it started to get dark out, its the timing, its still at the shop, he told me hes not letting me take the car home like that, ive herd alot of good things about his shop, and he walked me through everything, he just installed the turbo, not the turbo kit, but do u know anyone else who had timing prblems?
12-11-2007, 07:22 PM
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Originally Posted by djclongisland
NO not at all... hes awsome, we only noticed it when it started to get dark out, its the timing, its still at the shop, he told me hes not letting me take the car home like that, ive herd alot of good things about his shop, and he walked me through everything, he just installed the turbo, not the turbo kit, but do u know anyone else who had timing prblems?
12-12-2007, 06:46 AM
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this is what happend, i bought the car, it had the turbonetics kit on it, but the turbo, intake pipe and some lines were missing, si i had to get the missing parts, i believe the ECU was replaced by the dealer for some reason, so im guessing its not RE-flashed, thats the only possible way it woul be running like that... im goin to give turbonetics a call when they open and speak to them, hopfully i can send it out to them and have it re-flashed
12-12-2007, 06:47 AM
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found this too:
When ignition timing is retarted too much, you are igniting the mixture later and the difference in time between this happening and your exhaust valves opening decreases, this is why your EGT's go up. After the flame front, the exhaust valves are opening and all the heat is proceeding straight to your manifold. You wont be igniting at peak cylinde pressure either, thats why your car may feel sluggish and slow.
When advanced to much, you are igniting earlier and the difference in time between the combustion event and the exhaust valves opening increases, causing all that heat to stay trapped in your cylinders, thats why it will cause knocking/detonation, making it very dangerous.
So when it comes to timing, you want to find a happy medium if you are looking to be safe, and as far as I am concerned I would much rather expose my manifold to the temps over my cylinders.
But I do agree that ignition timing could be the culperate because of the mani glowing and the poor idle, the only other thing that I can think of is if your running too lean. Part of the fuel you add to the air is left over after the combustion event and it is used to cool the cylinder down a bit, but if you are running too lean and buring all of your mixture, then your cylinder temps will increase, which will also cause egt's to increase in this scenario.
Also, if you are running too lean, chances are your car is making a good amount of power and feels like it drives good unless you are just way too lean, the it will run like crap.
I know all of this is pretty much common sense, but a lot of people never take the time to think about it and fully understand it.
If you are backfiring out the exhaust and your fuel is tuned right, then your timing is too retarted.
When ignition timing is retarted too much, you are igniting the mixture later and the difference in time between this happening and your exhaust valves opening decreases, this is why your EGT's go up. After the flame front, the exhaust valves are opening and all the heat is proceeding straight to your manifold. You wont be igniting at peak cylinde pressure either, thats why your car may feel sluggish and slow.
When advanced to much, you are igniting earlier and the difference in time between the combustion event and the exhaust valves opening increases, causing all that heat to stay trapped in your cylinders, thats why it will cause knocking/detonation, making it very dangerous.
So when it comes to timing, you want to find a happy medium if you are looking to be safe, and as far as I am concerned I would much rather expose my manifold to the temps over my cylinders.
But I do agree that ignition timing could be the culperate because of the mani glowing and the poor idle, the only other thing that I can think of is if your running too lean. Part of the fuel you add to the air is left over after the combustion event and it is used to cool the cylinder down a bit, but if you are running too lean and buring all of your mixture, then your cylinder temps will increase, which will also cause egt's to increase in this scenario.
Also, if you are running too lean, chances are your car is making a good amount of power and feels like it drives good unless you are just way too lean, the it will run like crap.
I know all of this is pretty much common sense, but a lot of people never take the time to think about it and fully understand it.
If you are backfiring out the exhaust and your fuel is tuned right, then your timing is too retarted.