power glide or direct drive

[skunk rat]

hello i planning this winter to uppgrade from a powerglide to direct drive with a crowerglide . is there any place i can read or get info about witch type crowerglide clutch  i need to use. engine is a blown alcohol bbc KB olds solid block .dart  380 solid heads titan valves and td rocker arms. 14/71 littlifield blower. 4,5"bore 4,15" stroke. lunati blower cam 4000-8000rpm.super mag 3. no tacometer or rpm switch.about 1700-2000hp i think. 33x10,5x15 wheel and 3.78 in rear end.fed with driver is about 1892 lb. 153" wheelbase.
best et is 1/4 8 6,81 at 205 mph.
fed makes good long burnout, but i have big  problem to hold full trottle all the way down the track,tire shake-wheelie to 1/8 mile and so on.  so i think a uppgrade to crowerglide clutch and direct drive will make the fed more "easey" stable to drive.

thank for all info

best regard arne christer kallevik from norway

[tcoupekyle]

I don't know the answer. BuT I find this interesting.

In a RED Top Dragster I work on we were shaking the tires like crazy. And then we changed to high gear only powerglide and we stopped "shaking out our sillies" and started running the number and way consistent. Now this thing make 2800hp and is completely different setup than the author has got. So I'm very curious on others take.

[wideopen231]

I would think with glide you have tq multiplication of torque converter and thats what did away with shake issue. To my underatanding auto deal is lot more forgiving than a clutch. Might be just hear say. Those pro mod guys around here say they are anyway

[Frontenginedragsters]

I run a 10" two disk CrowerGlide and a two speed Lenco.
It's fun to run. I encourage you to give it a try!
You need to learn how to adjust it and maintain it.
I did the clutch on a big show nitro F/C for several years so I was comfortable with the workings.
Several early BB/FCs ran CrowerGlides in the 70's. The pedal clutch won more races but the Glide is easy on engine parts.
Get on the Crower clutch website .
https://www.crower.com/media/pdf/CrowerGlide.pdf
It is good reading to give you a basic outline.
Matt

[slingshot383]

Skunk Rat, sounds like a launch rpm or converter issue.  If you are launching at more than 1000 rpm under your stall, that could be the issue, allowing the converter to flash to much.  The other possible issue could be how tight your stator is.  If you have a bolt together converter (recommended) that is an easy change.