I have had the car a year. I have put 10,000 miles on the car, most all of it on long trips.I went to the track one time. Ran 11.91 @112. Combo is stock block, very mildly ported heads, 206 /206 flat tappet cam, 980's, Dutt. neck, THDP, 63's, Razor's alky, TT chip, 25lbs of boost( 22 when i raced ). Convertor is a Texas Art Carr 2800-3200 stall nlu, 9.5. Turbo is a cea/5857 from PTE. Milage on trips is only 17, would like more.
LU or NLU & stall for my combo
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hensleyt
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- Feb 20, 2008
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I have a LU about the same ET.MPG is 21 but speed limit is 55
0-60n4
Active Member
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- Nov 17, 2003
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- 319
What are the advanatage of a NLU? I think mine has a NLU Orange Stripe. Not sure what the stall is. I'm guess the Orange Stripe is not that great?
toomanymodz
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- Oct 14, 2009
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- 1,120
The advantage of a NLU is it has tighter coupling, therefore it slips WAY LESS than a lock-up. I used to run a lockup, and on the big end it had about 20% slip. My non-lockup converter only has 4% slip, so my RPM's were much lower at the track. I've seen some who needed to go with a taller tire to bring the RPM's back down because the slippage was so high. There are some lockup (multi-disc) versions which allow you to lock it up under full throttle, but they can be hard on parts, and can cause knock with some engines. A single-disc lockup is NOT designed to be locked-up under full load.
For your 112 mph car, it seems you're concerned about mileage and street-ability. I'd go with a single-disc lockup. There's nothing like cruising high-way speeds at 1500 RPMs. Be sure your transmission is configured to run whichever converter you choose.
For your 112 mph car, it seems you're concerned about mileage and street-ability. I'd go with a single-disc lockup. There's nothing like cruising high-way speeds at 1500 RPMs. Be sure your transmission is configured to run whichever converter you choose.
