98 LeSabre 0-90; 90*, up a 5-degree grade; top end sux!!! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 08-06-2007, 09:18 PM   #1
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Default 98 LeSabre 0-90; 90*, up a 5-degree grade; top end sux!!!

Headed home from work early today. Decided to take the long way home through the foothills East of San Diego.

Road was straight, noone in sight a mile ahead or 2 miles behind, and I had the camera...so what the heck; stopped, footbraked to 2000 rpm, and took off:

(This vid shot at air temp 90 degrees F, going up a long 5 degree grade.)

http://momentoffame.com/photopost/da...OT_compr_2.wmv

All I can say is, dang this L36 runs out of breath above 4500 rpm.
I'm hoping a 2.5" DP and high-flow cat (next mods) will provide some minor high-end relief until my project heads are ready.
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Old 08-06-2007, 09:21 PM   #2
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What in the.... That is the COOLEST L36 I have ever heard! Sounds SO different from stock!
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Old 08-06-2007, 09:24 PM   #3
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Yeah it does! Nice throaty note for sure. I wonder if it'* time for an HV3 or something...
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Old 08-06-2007, 09:40 PM   #4
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I thought you guys were joking about the "techno-sounding" audio compression artifacts

That "note" is the sound of 17* of spark advance, which is the best I can do on 87 octane oxygenated pump fuel in this heat with no KR. Current exhaust is completely stock (except ported front EM).

TJ and I are co-developing something like a polymer-based HV3 knock-off...I see Don (firebuick) is doing something also, and willwren is going all-out on a high-tech variable version, I hear...
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Old 08-07-2007, 10:01 AM   #5
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We should know how the Homemade HV3 works after this weekend
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