|
|
Post by SupaStealth on Dec 7, 2004 11:52:28 GMT -6
ok, well, yesterday i was at the local shop where my mom's car is being fixed after my dad put in the green antifreeze in a newer antifreeze car, which finally ended up disolving the head gaskets and puting a hole in the (plastic/composite) intake manifold. After we got that all straightened out i brought my car in to see if they could find the leak for the radiator.
Now the important part, we were talkin' about the mechanic's car, and he was tellin' me a few free mods that i can do. One thing is to re-route the coolant that goes through the throttle body, if you bypass that, it won't run hot coolent through there, therefor allowing cooler air to be run (isn't that what we're all puting reflective tape on our airboxes for?) beware though, this will cause you to fail emissions because cooler air burns less clean than hot air. I will try and post pictures of this modification once we get our new digital camera in the mail.
|
|
|
|
Post by erw38 on Dec 7, 2004 11:56:06 GMT -6
I'm interested!
|
|
|
|
Post by JimW on Dec 7, 2004 12:57:22 GMT -6
Not recommended if you are forced to submit to Emission tests bi-annually however TB/coolant block off is a well known mod (at least in the 3800 world) few people have done it to their GP's and Bonnevilles.
Takes a bit of work, but its do-able.
|
|
|
|
Post by SupaStealth on Dec 7, 2004 14:04:28 GMT -6
I just did it, it took me about 5-10 minutes, i was also flushin' my radiator so i guess i didn't pay attention to how long it took, it was pretty easy though. ;D
|
|
|
|
Post by JimW on Dec 7, 2004 14:20:51 GMT -6
Instructions? pics?
|
|
|
|
Post by Aurora40 on Dec 7, 2004 14:39:07 GMT -6
The main reason the TB has coolant passages is that icing can occur on it in cold weather. The TB is a very short part of the intake path. I personally wouldn't do the bypass.
While it may help, I seriously doubt it will help to anywhere close to the tune of 5-10 hp.
|
|
|
|
Post by stevensolds on Dec 7, 2004 14:41:39 GMT -6
yeah thats like the guy that ran without an air filter lol. he said you get massive power without one but i doubt any of it is usable since the MAF  PA is such a damn rip off on emissions testing. Especially for newer cars. you have to do it every year, and a new car with 7500 miles, what the **** does it need an emissions test for? i like delawars where its good for 5 years |
|
|
|
Post by SupaStealth on Dec 7, 2004 15:58:30 GMT -6
hmm, the engine picture i have is too small, since i don't have a digital camera i cant take any more pictures, does anyone else have an engine pic where i could demonstrate what i did? it needs to be focused on by where the throttle body is or so
|
|
|
|
Post by JimW on Dec 7, 2004 17:27:23 GMT -6
|
|
|
|
Post by stevensolds on Dec 7, 2004 17:45:58 GMT -6
Wheres your airbox jim? doesnt look anywhere near like mine.
|
|
|
|
Post by SupaStealth on Dec 7, 2004 18:42:20 GMT -6
well, your pic is a bit different than mine, but it should still work.  |
|
|
|
Post by JimW on Dec 8, 2004 10:34:19 GMT -6
If you dont have that second line, it means you do not have a stock tranny cooler, that ships coolant to the radiator, or at least that is my understanding....correct me if I am wrong.
Question tho, how did you crimp the cut coolant line?
|
|
|
|
Post by Aurora40 on Dec 8, 2004 11:00:40 GMT -6
If you dont have that second line, it means you do not have a stock tranny cooler, that ships coolant to the radiator, or at least that is my understanding....correct me if I am wrong. Question tho, how did you crimp the cut coolant line? I have a feeling you are wrong...  The overflow bottle will always have some path to the radiator (usually direct) or it would never get filled/unfilled. I can't think of a single GM car with an automatic that hasn't had a tranny cooler. It is built into the radiator, and the transmission has lines that carry tranny fluid up to the radiator for cooling, then back again.  |
|
|
|
Post by JimW on Dec 8, 2004 11:54:07 GMT -6
Its some kind of cooler...the line runs from the overflow tank to the radiator. Someone else MUST have this line. Maybe its a Dexcool coolant cooler  , maybe the rad cools off hot Dexcool...*stab in the dark* |
|
|
|
Post by erw38 on Dec 8, 2004 13:06:36 GMT -6
Supa,
Did you notice a difference after the mod?
|
|
|
|
Post by Aurora40 on Dec 8, 2004 13:33:39 GMT -6
Its some kind of cooler...the line runs from the overflow tank to the radiator. Someone else MUST have this line. Maybe its a Dexcool coolant cooler , maybe the rad cools off hot Dexcool...*stab in the dark* I thought you might be kidding except for the "stab in the dark" part. But you are right on. That's exactly what the radiator does, it cools down the coolant.  Most cars have direct connections from the overflow bottle to the radiator, so it's odd some Auroras don't have that line. I guess the radiator must overflow and pull in coolant via a more circuitous route. |
|
|
|
Post by Aurora40 on Dec 8, 2004 13:35:52 GMT -6
well, your pic is a bit different than mine, but it should still work. Supa, you didn't seal off the only hose from the overflow bottle, did you? There is some other hose where it connects to the radiator, I hope? What I mean is, coolant in the overflow bottle is free to flow somewhere, right? |
|
|
|
Post by Isnibs on Dec 8, 2004 13:51:31 GMT -6
Would cutting the hose to the throttle body and inserting a on off tap do the same??
E.G. shut for regular driving open for Emission tests.
|
|
|
|
Post by SupaStealth on Dec 8, 2004 13:54:05 GMT -6
nope, i didn't seal off the hose that comes from the resevoir, that's the line i attached to the other hose i pulled off the block, i have a feeling the only way i can explain this one is by a picture, my mom ordered a digital camera i guess, i just don't know how long it'll take to get here.
as far as noticing any differences... i have only driven it for about 20 minutes. i did however notice that the intake manifold was a bit cooler as well as (obviously) the throttle body area. i wish i could've done a dyno run before and after.
|
|
|
|
Post by SupaStealth on Dec 8, 2004 16:31:40 GMT -6
Would cutting the hose to the throttle body and inserting a on off tap do the same?? E.G. shut for regular driving open for Emission tests. you would have to get a valve to divert the flow back to the resevoir so a "T" would probably work(actually, you would probably need two "T"s, both with diverting valves to bypass the line to the throttle body, while still easilly be able to pass emitions with a flick of 2 levers, heh. whether or not it's worth it, i guess i'll keep in touch after i drive it a bit more, too bad i cant get any numbers to show. |
|
dred98
Aurora Driver
Posts: 470 
|
Post by dred98 on Dec 9, 2004 9:26:31 GMT -6
I don't have that extra line to the rad either.
I've always thought that the overflow reservoir isn't really part of the circulation system - the one line goes either way depending on the temperature. Coolant goes into the reservoir as it heats up and expands, and back into the motor as it cools down. You only need one line for that.
|
|
|
|
Post by SupaStealth on Dec 9, 2004 10:10:47 GMT -6
Well, i drove my car last night, after the car warmed up a bit i believe i could notice a small difference, it felt quite a bit more responsive and torquey (at least what you could tell of around 5 ft lbs maybe 10) at the lower RPM's between 1500-3000.
|
|
|
|
Post by stevensolds on Dec 9, 2004 11:00:20 GMT -6
hmm..
|
|
|
|
Post by SupaStealth on Dec 10, 2004 17:23:27 GMT -6
 Here we go, first pictures with the new digital camera. Hope this helps ;D oh yeah, after driving this a bit more now, i can definitely tell the differance the torque is nice |
|
|
|
Post by erw38 on Dec 10, 2004 19:07:21 GMT -6
I see nothing!
|
|
|
|
Post by Isnibs on Dec 10, 2004 21:45:24 GMT -6
I see nothing!  EDIT update Now I see all. |
|
|
|
Post by SupaStealth on Dec 11, 2004 10:26:30 GMT -6
so yeah, i'm just wondering if the picture explains everything or if you guys all just lost interest, heh.
|
|
|
|
Post by Aurora40 on Dec 11, 2004 10:42:47 GMT -6
I can't see a picture.
|
|
|
|
Post by Isnibs on Dec 11, 2004 11:05:02 GMT -6
At first I couldn't see the pic then I could now I can't. I'm Sooo confused. Who is hosting your Pics? Is it 4d5.net, Cos DaHamma has probs with them.  |
|
|
|
Post by JimW on Dec 11, 2004 11:37:29 GMT -6
Cardomain doesn allow hotlinking anymore, use URLs or post on your own webspace.
|
|
The overflow bottle will always have some path to the radiator (usually direct) or it would never get filled/unfilled. 
, maybe the rad cools off hot Dexcool...*stab in the dark*
Most cars have direct connections from the overflow bottle to the radiator, so it's odd some Auroras don't have that line. I guess the radiator must overflow and pull in coolant via a more circuitous route. 
