Direct Drive on an alch motor?

Discussion in 'PSI Superchargers Tech Questions' started by William Payne, Jan 15, 2009.

  1. William Payne

    William Payne New Member

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    I was just thinking to myself and having one of my crazy idea moments , I was just thinking how would an alchy motor run with a high gear only direct drive setup . A couple of years back when I was doing an automotive course I used to do work experiance at the local V8 Specialist here in Wanganui New Zealand and he builds motors for a local Grand Prix Hydroplane team and they run Direct Drive , so got me wondering would it work on an alchy drag car?

    Oh and could someone tell the guys at Nitro Drivelines that something is dreadfully wrong with their website! . Lol not being rude but there seems to be 4 common traits with website of drag racing parts manufacters , they are either Great , dreadfully out of date and in need of updating , they don't work , or the most anoying they don't have a website . Doesn't make it easier for people outside of america.
     
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    Last edited: Jan 15, 2009
  2. crashly

    crashly Member

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    hope you ment blown alchly motor....
    i would be interested in this tooo

    turboed alchy engine....... direct drive
     
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  3. William Payne

    William Payne New Member

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    Yeah I was meaning a blown motor , well any kind of motor really . I wasn't meaning turbo's though I am not really a fan of them and don't know much about them .
     
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  4. William Payne

    William Payne New Member

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    .....bump.....
     
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  5. nmro2114

    nmro2114 Member

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    I tried it in a blown mud racer and after 2 years i went back to a more conventional set up. I believe it takes more power to make it work properly than an alocohol engine can produce.
     
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  6. William Payne

    William Payne New Member

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    I still think it could work , though your diff ratios would have to be setup right for it . I mean it works in boats and sprint cars .
     
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  7. William Payne

    William Payne New Member

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    I can kind of understand it not working on a mud racer , wouldn't you need the gear reduction to produce the torque to really get you through the mud .
     
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  8. crashly

    crashly Member

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    you talking about a direct drive clutch management transmission ( ie, top fuel/ nitro funny car ...
    or
    dog clutch , in/out type coupling....


    ???
     
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  9. William Payne

    William Payne New Member

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    I am talking about anything from just a clutch and reverser setup all the way to similer to what the nitro cars have . centrifical clutch type deal you know .
     
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  10. William Payne

    William Payne New Member

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    I mentioned sprint cars only because the fact that they have no transmission even though they do it in a slighty different manner
     
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  11. nmro2114

    nmro2114 Member

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    The gear reduction was the issue. It took so much gear the make everything work then the management system was not necessary. I will say though, that the top end speed is increadible. It just wouldn't leave hard enough
     
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  12. blwnaway

    blwnaway Member

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    I beg to differ. We ran a Screw Blown door car that weighed over 2600lbs and our ACD shifter took a crap and didnt reset to 1st gear (it was a 2 speed) and we went 1.01 60' and still ran 3.97@190 leaving in high gear with not near enough clutch. I think it would be feasable in a AF/C
     
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  13. jonimus333

    jonimus333 New Member

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    Direct drive

    Some time this summer I will let you know. I will throw all my A-Fuel parts from motor back in over a weekend and give it a shot. Who cares if if falls on its face. I have the parts. Don
     
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  14. William Payne

    William Payne New Member

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    I just look at it from a few of how much does a lenco way , with direct drive you would save alot of weight . It may not work but why not , maybe people have been running lencos so long that they just havent thought about trying it . I know when I build a car I will surely try it out.
     
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  15. nmro2114

    nmro2114 Member

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    Go for it. It might work for you.We are turning 44 inch tall tires that weigh 115 pounds each and I think that is part of my problem. The clutch management system I had on the car worked great. You can see on the computer graph each time a stage comes in. Bob Automan would be a great source to talk to to get you going.
     
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  16. William Payne

    William Payne New Member

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    Yeah when I eventually get a car to go drag racing I will deffinitly try it out .
     
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  17. Chuck Stevens

    Chuck Stevens New Member

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    I've been both ways on this. Back a couple of years BL (Before LENCO), we ran high gear only. Went 7.60's around 198/199 out the back door. Then we were "blessed" by Leonard. Found about a tenth but lost 10 MPH. Back then, when they were made out of old GM Hydro-Matic parts, we'd get 3 runs before the band bonded it's self to the drum. Ours was S/N 6, the oulde overdrive type. EVERY Monday morning it was back to Lemon Grove, get it fixt, and back home...I got to know the drive pretty well. IMHO, IF you can find enough grunt to get it to 60 Ft. well, without pulling the motor down, it'll run like stink in the top.
     
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  18. William Payne

    William Payne New Member

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    Would a high gear setup work if you just ran it with a clutch and reverser no management systems?
     
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  19. JustinatAce

    JustinatAce Member

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    I'm extremely interested to see how this plays out. The one thing the Alcohol motor has working for it here is screaming RPM's vs. a Nitro to get the momentum where it may lack in torque.
     
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  20. jonimus333

    jonimus333 New Member

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    Direct drive

    I will try it this summer. I also have a used 6 stage clutch management system. So with the 10.5 Tit. 6 stand 12 finger clutch and management we will see. Like I posted earler. I have all the new stuff from the A-fuel car I was going to build. Also the 12 stage fuel management system..That I am going to put on the car for the Blower motor. Turn it 10 500 /11000 RPMs. Just need it to flash to enough RPMs to get the car up on the tire. I will keep everyone,s posts and get back to everyone interested. By the end of the summer. Maybe go with a longer stroke to help the bottom end. HELL it s only money. It cost to have fun. Don
     
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