ADTR intakes - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 08-26-2004, 03:20 PM   #11
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What is it that the 180 T-stat does exactly? For some reason my dad thinks that it would take some life away from my engine. Is this true? Where can i get a 180 t-stat and for how much? Do i install it myself? Feedback please.
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Old 08-26-2004, 03:55 PM   #12
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The 180 will gain slightly in performance AND fuel mileage. It keeps your engine running cooler, resulting in a slightly cooler intake charge. Your supercharger actually has engine coolant running through it up to the TB, and back down. Cool it down a bit. Just get a 180 thermostat of the same series as the stock 195, and make sure you get the fiber outlet gasket and rubber seal for the stat. Some of us are running these with bypass holes drilled as well, but that can depend on your climate. Try it undrilled first, then maybe drill it later as you mod more. The 180 really just prevents the initial warmup heatsoak, and allows you to run slightly cooler (but not by 15 as you might expect) while air is actually passing through the radiator. Above 30 mph or with the fans running.

The single largest gain in performance will be seen when you change your SC pulley from the stock 2.55" to the 2.2", but don't do it until after the stat (this will make the SC run hotter), and the intake. Because you also have the 4T60E trans, you may want to consider a larger, or additional trans cooler after the pulley.
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Old 08-26-2004, 07:07 PM   #13
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Heat is the major enemy of any aftermarket intake. I used to have a simple short ram intake on my 98, which was just a 7" K&N cone on a short curved PVC piece that sucked up all the hot air by the radiator. After getting the coldest passive air possible by mocking up a fender well intake inside the front bumper I got some impressive performance improvements through the 1/4 mile numbers. If you can't figure out a way to make a fender well intake, try building a cold air box that isolates the air filter from most engine heat.

Stock Bonneville exhaust (in my opinion) really doesn't need to be touched unless you're looking for a signature sound. The Bonnevilles don't get a U-bend in their exhaust like the W-bodies do from the factory, which is horrible at letting exhaust gases out. Your Series I already has nicely ported manifolds and you may see an increase in performance by upgrading to a high flow CAT (especially if your current one has some years behind it).
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Old 08-26-2004, 07:45 PM   #14
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Stick with the Autozone option... It'* the best fitting one out there, just a hair sharper bend then the ADTR, but a good price and already coated and full of holes and such.

Intakes give a lot of torque too.
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Old 08-27-2004, 02:01 AM   #15
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I still have my ADTR CAI sitting on a shelf in my room. I would be willing to sell it but it belonged to my beloved Bonneville, so a lot of it is sentimental value Plus I spent a lot of time making the heat shield. The intake from RSM for the 3100/3.4 is virtually the same bend, if not exactly the same. The RSM is just a little shorter pipe though, but it can be easily extended. But as stated, there are pipes at auto stores that can and have been used effectively. The performance gain is significant, and the sound is music to the ears.
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Old 08-27-2004, 09:17 AM   #16
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does it improve the sound at all on n/a cars? we don't have that whole whine thing you know...
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Old 08-27-2004, 10:17 AM   #17
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yea I got the N10 High Flow and the Sound is lower and louder. When you get on it the engine just wants to rev high and get loud
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Old 08-27-2004, 10:55 AM   #18
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Quote:
Originally Posted by bonnie94sse
I still have my ADTR CAI sitting on a shelf in my room. I would be willing to sell it but it belonged to my beloved Bonneville, so a lot of it is sentimental value Plus I spent a lot of time making the heat shield. The intake from RSM for the 3100/3.4 is virtually the same bend, if not exactly the same. The RSM is just a little shorter pipe though, but it can be easily extended. But as stated, there are pipes at auto stores that can and have been used effectively. The performance gain is significant, and the sound is music to the ears.
wont u sell it to me
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Old 08-27-2004, 12:44 PM   #19
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man, am i glad a read this thread. i didn't know that a longer pipe on the intake made for better performance. so what'* a guy with a '97 SE supposed to do? i bought a rx-4730 to replace my re-0810, so i'll have a shorter filter by 3", but i got no room between the radiator and pcm! i paid $40 for the rice pipe, and used about 4 inches of it right where it bends. so basically i have a filter that'* WAY to big for my available space with a tiny piece of pipe. suggestions? comments?
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Old 08-27-2004, 01:49 PM   #20
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Quote:
Originally Posted by 1993 SLE
yea I got the N10 High Flow and the Sound is lower and louder. When you get on it the engine just wants to rev high and get loud
The engine with the setup I had, no MAF screen, and the n10 was MUSIC!!!! Now all I hear is burbles, and a tiny TB roar..... which is good and bad....
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