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Old 03-05-2003, 12:04 PM   #11
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Quote:
Originally Posted by Drifter420
I will have to agree with Will ( That ol Alchy I.V. injecting crazy plick ) don't argue wtih mom then... simply just go out and do it yourself.. it takes less than half hour, and cost less then 20 bucks ( including the Thermostat housing gasket, which you may have to get from the Pontiac Parts department ). No one will be the wiser. If it really was that bad of a mod.. then a lot of us would've already been argueing over it. As Rat has also once stated.. GM will ALWAYS want you to use the EXACT OEM parts.. so in turn, would you use the standard OEM exhaust system if you had to replace it? Most of us with 180 T-stat and tranny cooler don't really seem to run into the notorious problem of cracked head gasket ( providin the coolant system is working properly (i.e. no blockage ) Hector said I think ).. which also makes sense.
Just to give another suggestion. When my dad helped me do mine he had me use permatex. We just made a silicon seal on it and it worked fine. A little hard to remove but still works fine.

Im going to have to do mine again in the summer just to be safe. I remember when it overheated (Well was on its way to) . Not so good times. But I have been running the 180 for a year now (Since its the closest they had) And it works fine.
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Old 03-05-2003, 09:19 PM   #12
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how are you getting 32 mpg on the freeway? I drive 100 freeway miles a day and I get around 24 TOPS??!!
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Old 03-05-2003, 10:10 PM   #13
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He'* got a Series 2. Slight advantage, lower miles, and a couple mods. You should be able to get yours at least to 29.
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Old 03-06-2003, 09:02 AM   #14
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yes, I have a shop at home with a lift. I do all the basic maintenance on time (or earlier)
I change my oil every 2,000 miles. Recently changed air filter (k&n), fuel filter, plugs, wires............
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Old 03-07-2003, 01:24 AM   #15
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... Strange the GM switched to a 180 for the 3800 II engines.. What does that tell you..??? [/quote]


Is that true? The Series 2 engines use the 180 thermo??
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Old 03-07-2003, 01:33 AM   #16
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I got 32 on my old 1992 SE but that was really grannying it. My friend has a 1995 SLE with the Series II and at 75 mph he is lucky to see 20. He'* had it for almost 60k and the best he has ever gotten was like 24.
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Old 03-07-2003, 05:57 PM   #17
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Quote:
At 75 I see 32 MPG... and on my 91 I see 31 MPG... He should be doing a lot better than 24 on the interstate..
***** Foot.
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Old 03-08-2003, 12:50 AM   #18
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I was clocked at 119 in my 1992 Bonneville SE. In my dad'* 1989 Lesabre Limited that I've been driving lately I have had it shift into OD after running out of rpm'* in 3rd and then I let off the gas before the car gave any notion it was done picking up speed. I'd bet going by the rpm'* at 100 mph (it'* top reading) I was doing in excess of 125. I take it up to 100+ probably once a week. After I do it each time it run'* better and only seems to benefit the car to do that. It is no trouble getting it over 100 and when I go there I usually stay over 100 for 10-15 miles (which doesn't take long to cover at those speeds). This Lesabre which just turned 230,000 un-rebuilt miles on Tuesday has also smoked the pants of my dad'* other matching Lesabre (also a 1989 Lesabre Limited), but minus 180,000 miles and I mean literally. He pulled up alongside me at 2 stop lights in a row. At both I let him get the jump (about 1/2 car) and befoer he got across the intersection I would be pulling ahead already (yes, he had his pedal to the floor). Got give kudo'* to higher mileage 3800'* as I have rarely found them to be slower than low mileage one'*. It'* almost like when they his 150K+ they are putting more power to the ground than they did when new.
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Old 03-08-2003, 02:32 AM   #19
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that 92 SE isn't governed at 108 or 110??
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Old 03-08-2003, 11:22 AM   #20
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Quote:
My 95 is limited to 110 I think... That was the fastest I have ever been able to go... Fast enough too.... The 91 I don't know about... But it does run good....
It'* limited due to the speed rating of the stock tires which is 108 mph.

The supercharged Bonne gets HR rated tires, so it is limited to 128 mph.

A good computer chip/module will disable the limiter.

5500 rpm in 3rd gear = 155 mph

The speed sensors in the wheels max out at 159 mph.

The 600 hp SSEi Bonneville flats run record speed is 202 mph......5500 rpm in 4th.
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