Technical > Dan Dishon's Transmission Den
Direct drive
Paul New:
No big deal are you running Pro tree or full tree? If Pro Tree you will not cut good lights! Other than that it will work to go out and have fun
Watch this video of some direct drive cars
dreracecar:
The killer will be the between round maintence of the clutch. Index racing is all about consistency, but if in the later rounds they start hot-lapping, there is no time for it.
ricardo1967:
--- Quote from: Paul New on February 10, 2016, 12:16:46 PM ---No big deal are you running Pro tree or full tree? If Pro Tree you will not cut good lights! Other than that it will work to go out and have fun
Watch this video of some direct drive cars
--- End quote ---
Awesome video, thanks for sharing Paul! They don't look ultra long cars, how do they manage to not need wheelie bars? (very heavy nose?)
--- Quote from: dreracecar on February 10, 2016, 12:27:14 PM ---The killer will be the between round maintence of the clutch. Index racing is all about consistency, but if in the later rounds they start hot-lapping, there is no time for it.
--- End quote ---
No slipper clutch experience here, but it makes sense to me.
Ponti, hats off to you for trying something different!
dreracecar:
That NW group came to Sears Point years ago to race NE1,We were sitting around eating sandwiches and he was flogging the clutch. Its not so bad when the rules require clutch and high gear only for everybody, but the only way to keep out of the clutch can is by stacking a 2 speed behind it.
sknopp:
--- Quote from: Ponti on February 10, 2016, 12:00:30 PM ---
--- Quote from: sknopp on February 09, 2016, 09:55:49 AM ---I can tell you from experience that with a pedal clutch and a blown alky small block you will not be happy with a direct drive setup if you intend to race it. You will not make enough power to get it to launch well.
Steve K.
--- End quote ---
Is that still a problem if I was slipping the clutch, I know Top Fuel slip the clutch for a way down the track over here.
Just trying to get idea's. Would love to go for a DD car, stand out from all the auto's. Class I would be racing in is a Bracket ET class.
--- End quote ---
Remember that top fuel guys are making 8,000-10,000 HP, you will likely be 850-1,000. Also note how hot those clutches are after a run. Please understand, not trying to discourage you, I fully understand the "do it different" theme and feel the same way. I hope you do this set up.
Go get in your standard shift passenger car and try to take off in high gear. Even if you give it more RPM and slip the clutch it's a dog. Not apples to apples comparison obviously, but you get the point. That's what your going to need to address. What are you thinking for a rear gear?
Direct drive cars run kind of like a super gasser on a throttle stop in that the first 300-400' is comparatively slow, but at half track come on very strong. Guys in the other lane are used to running wheel-to-wheel with the competition and don't know where you are at. Can be a killer setup in ET, if you can figure how to make it consistent. The short turn around time between runs makes that difficult, even with a blower cooling the clutch.
If you can gear it right, and don't try to put too much static on the clutch you can make it work.
Steve K.
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