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Post by AveoSam on Jun 9, 2006 9:44:54 GMT -5
it's almost here. USPS said it arrived in LA, CA on 6-6-06. so I guess I should have it any day now. I will def. post pics of it off and on when I get a chance. nice....dyno again? |
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Post by chevyaveo413 on Jun 23, 2006 0:25:20 GMT -5
i am planning on getting a full custom borla exhaust ( 2 1/4 pipes going to a kamikazie hi flow and back to a 4 1/2 opening muffler, borla pipes and borla muffler) which header would be better for this set up the 4-1 or the 4-2-1?
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Nemasys
Nitrous User
Speed kills, but you get there faster!
Posts: 953
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Post by Nemasys on Jun 23, 2006 10:24:47 GMT -5
id presume 4-1
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Post by AveoSam on Jun 23, 2006 11:21:38 GMT -5
the one mentioned in this thread is 4-1, but 4-1 is good for hp and 4-2-1 is good for torque...so really it is which ever you prefer
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exodus
Nitrous User
Posts: 886 
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Post by exodus on Jun 23, 2006 11:58:46 GMT -5
I think it really depends on the engine. If you slap a huge 4-1 on a low displacement engine, you'll probably notice a loss of power all throughout the rpm range. The engine just can't put out that much exhaust.
4-1 from what I understand is mostly ideal for high boost situations. To clarify, it actually increases torque... in the high end.
A good 4-2-1 (again, from my understanding) is a good compromise. Gains throughout the whole operating range. I believe this can be limiting if you're running a huge charger with rediculous amounts of boost, though.
I'm all for totally leaving HP out of the equation. Without torque you don't have HP. If I remember the equation properly, an engine capable of making 60lb-ft of torque at 10,000rpms is equivilent to about 120hp.
The torque band and the operating range of the engine is the deciding factor.
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Post by Brian5475E on Jun 23, 2006 13:58:06 GMT -5
Well Finally installed it . I am very pleased. A little more raspy, a pop here and there. And you can tell when I'm getting on it. As for power, I know this is what you are waiting for. You have to remember that I have a full CAI and U/D pulley. But with this header lets just say I uncorked the motor. I did not, repeat DID NOT loose any torque, feels the same, but when that VGIS opens at 4k look out she moves, pulls hard. I already had a Honda civic hatch it was mid 90's or something trying to race me. I let him in front then hammered it, I pullled a car and a half on him, even with his VTEC kicked it. This was on a city street. On the Highway it's better. Just say I pulled to 90 in 3rd very fast went to 4th pulled to 110 good but then let off. The car is a lot more reponsive. The little hesitation with the engine when you rev is gone. Again I am very pleased. I would recomend to anyone that want s to tune the Aveo.   |
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Post by subachad on Jun 23, 2006 14:12:01 GMT -5
That's awsome, congrats on the install. I wish they made some that would bolt on with no extra mods.
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Post by AveoSam on Jun 23, 2006 14:45:27 GMT -5
looks good...really good...sounds like it performs awesome too...hopefully there will be a dyno run in the future to see what gains
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Post by subachad on Jun 23, 2006 15:09:14 GMT -5
looks good...really good...sounds like it performs awesome too...hopefully there will be a dyno run in the future to see what gains Unless he has a past dyno run, a future one won't show any gains.  It would be nice to see a current dyno pull though, Hopefully you are getting more than 105 to the wheels. |
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Post by chevyaveo413 on Jun 23, 2006 16:08:13 GMT -5
so since im putting a Teo4h turbo and intercooler on my car with the full borla exhaust, should i use the 4-1 or the 4-2-1....im open for suggestions because i do not want to have any problems with this turbo setup.
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Post by AveoSam on Jun 23, 2006 16:57:04 GMT -5
4-1...ive only seen turbo headers in the 4-1 style
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exodus
Nitrous User
Posts: 886
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Post by exodus on Jun 23, 2006 17:00:18 GMT -5
4-1...ive only seen turbo headers in the 4-1 style it's all about 2-1/3-1*2 twin turbo setups ;D |
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Post by subachad on Jun 23, 2006 17:08:41 GMT -5
so since im putting a Teo4h turbo and intercooler on my car with the full borla exhaust, should i use the 4-1 or the 4-2-1....im open for suggestions because i do not want to have any problems with this turbo setup. Don't buy headers since they would have to be replaced when you get a new turbo manifold. Chad |
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Post by chevyaveo413 on Jun 23, 2006 17:19:31 GMT -5
where could i get a turbo manifold for my aveo??
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Nemasys
Nitrous User
Speed kills, but you get there faster!
Posts: 953
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Post by Nemasys on Jun 24, 2006 2:09:34 GMT -5
shucks that header looks impressive, id like to try one myself  |
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