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Powerglide 1.98 vs 1.80
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DRR Trophy
posted
The specs: 540 BBC, 10 teens for ET and 131 Mph, 4.30 rear gear, 29.5 x 10.5 tires, currently 1.98 low gear PG. Shifts at 6500 and traps at 6500. I went with the 1.98 because the car weighs 3550 lbs.

Wanting to know if switching to a 1.80 would help or hurt my combo either in ET or MPH.

Thanks
 
Posts: 61 | Location: ON Canada | Registered: September 12, 2005Reply With QuoteReport This Post
DRR Sportsman
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sounds to me like it would hurt it as far as ET goes

question though... what does your convertor flash to? shifting at 6500 is probably making the shift fall back into the convertor
 
Posts: 401 | Location: Georgia | Registered: May 09, 2008Reply With QuoteReport This Post
DRR Trophy
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On my playback it flashes to 5500. Not sure if it's possible, but it used to flash to 5200, but I changed the cam over the winter and picked up 3 tenths and now it flashes to 5500.
 
Posts: 61 | Location: ON Canada | Registered: September 12, 2005Reply With QuoteReport This Post
DRR S/Pro
Picture of Curly1
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I am not sure but you need to make sure the 1.98 are strong enough to handle it. some of the gear ratios can not handle it.


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Posts: 1137 | Location: United States of Texas | Registered: April 02, 2011Reply With QuoteReport This Post
DRR Sportsman
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If you got a convertor that flashed at 6100 and shifted at 7000 i believe you will see a big ET difference
 
Posts: 401 | Location: Georgia | Registered: May 09, 2008Reply With QuoteReport This Post
DRR Pro
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Buddy of mine just went through this testing last weekend. Car slowed down a tenth or more going from the 1.98 to the 1.80. 3400 lb 66 Chevelle with a 582. Runs 9.0's in the 1/4 mile.
 
Posts: 729 | Location: Westminster, MD | Registered: December 23, 2000Reply With QuoteReport This Post
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