Landracing Forum
Tech Information => Technical Discussion => Topic started by: javajoe79 on February 23, 2015, 10:07:52 AM
-
I have acquired a lakester that is unfinished to build. It has some issues that I want to bring up and I would also love to hear any ideas or feedback anyone might have.
It is about 26' long and made from an auxiliary fuel tank. It was built to fit a BBC with a large BDS blower on top with carbs. Seems to be plenty of room for any trans and rear end combo as well. It currently is only a frame and body.
My main current concerns are with the roll structure which appears to be part DOM and part ERW. I don't like the ERW but it seems as if the rule book does not prohibit it unless I missed that somewhere. Either way I am considering redoing some or all of the roll structure.
Planning a quickchange or 9" but leaning towards the quickie for the higher gearing.
Lenco trans or turbo 400.
Engine may make 1500hp. 500ci + blown BBC on alky. Zoomy headers or full length in the air?
Front beam axle? Who uses what here?
4 link suspension with watts link front and rear is the plan. Maybe pushrods.
Came with formed lexan canopies. Thinking forward hinged.
Thinking 30" mickey's for the rear and something smaller up front.
-
thought I was posting in a private message
-
Thanks Sparky. I will be in touch. When is a good time?
-
How about some pics so we can see what you have?
Rex
-
now
-
(https://scontent-atl.xx.fbcdn.net/hphotos-xap1/v/t1.0-9/11002581_678615098915054_1151308507870842547_n.jpg?oh=f7a69094974cccd5bdab404f89488928&oe=558085C2)
(https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-xfp1/v/t1.0-9/10944704_678615212248376_2345650248527565692_n.jpg?oh=4d7106444b61d00f1032c757d9b3edae&oe=5551066A&__gda__=1431298531_51cf58348006416873a5f335a412b3e1)
(https://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-xaf1/v/t1.0-9/10401902_678615255581705_5297418504084991236_n.jpg?oh=28a05dd29f576ee5b0c30a4293700df2&oe=55547972&__gda__=1431530947_8505bcf4d3415e62c7ceb4fa028428c1)
(https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-xaf1/v/t1.0-9/1781875_678615232248374_5368681422472891107_n.jpg?oh=b9ec5034ae21bb3317d39dd7c742eaf5&oe=5596889E&__gda__=1434301664_fe2d68e53b90307239156846d16daffb)
(https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-xfp1/v/t1.0-9/11006437_678615285581702_943984731339651681_n.jpg?oh=019fc0e07c2c4b3b4eefb56bf1b68172&oe=557F3583&__gda__=1434690840_a6dd1159677b73e5a25201c767cac697)
(https://scontent-atl.xx.fbcdn.net/hphotos-xfp1/v/t1.0-9/11002504_678615362248361_437500484100083429_n.jpg?oh=b69b45671af68b71c0acb828abd4d7d8&oe=554A182D)
-
Well you certainly did describe it as "unfinished". A lot of welding ahead for you.
Joe
-
ooooooo this thing sure could look bitichin when these guys get through :cheers: another tank yeah !! see shades of Charles and strange days!!!
-
Well you certainly did describe it as "unfinished". A lot of welding ahead for you.
Joe
Yeah man, no joke..... Lot's of welding to do and probably will redo the roll structure. Too many bad notches there and would rather it be DOM
-
ooooooo this thing sure could look bitichin when these guys get through :cheers: another tank yeah !! see shades of Charles and strange days!!!
Yeah I think it looks cool as all get out...
-
Envious!!!... of all that interior space!!!
-
Yeah that's what I was thinking too, you might need a little more space when you park your 747 in there at night! :-o
Sid.
-
You certainly have a pretty good starter with some obvious things that need to be changed. Redoing the cage is a good idea as the structure around it is pretty poorly designed, I would also ditch the F104 tail structure, not very aero. Looking at what is there you appear to have plenty of room but wait until you get the blown BBC/Turbo 400/ QC in it then it will definitely be filling up! I happen to be one that believes that on a lakester the wheel/tires should be a fair distance from the body just to insure that the air disturbance from the wheel/tires has the least disturbance of the air going around the body. You see lots of lakesters with wheels mounted close to the body and they will have a salt deposit just in front of the tires, which to me just indicates that the air is not flowing well between the body and the wheel/tire. If you are going to run individual headers I would suggest looking at what the Contrivance Engineering people have done on their modified roadster. I have attached a pic. I talked to them regarding this configuration and they said that for the small amount of additional horsepower that they found with equal length headers they had so much increased drag hanging out in the air that the individual pipes with a fairing were a much better choice. I would not make them zoomie style as they really screws up the air flow over the body.
It is going to be fun watching you get this car completed so please keep us updated.
Rex
-
I like the idea on those headers Rex. I wonder if they have issues with getting accurate readings with the O2 sensor so close to the end like that?
-
Those Contrivance guys don't have a clue what they're doing -- running that awkward '23 body!
It's just a coincidence that they hold the AA, A, B, C, D, E/Gas Modified Roadster records at Bonneville.
-
Joe, neat project. :cheers:
Why do guys use a seat like that in a lakester?.
You'd be sitting upright but like you said you don't like the cage.
Good luck man. I'm subscribed.
-
Yeah those guys have done everything wrong but set records.... That's what happens when you don't care what everyone else does and you do what works. They won't win any car shows but you won't take their records by building one that does..... I wonder where that b----- is? Oh never mind........
-
:cheers:
Those Contrivance guys don't have a clue what they're doing -- running that awkward '23 body!
It's just a coincidence that they hold the AA, A, B, C, D, E/Gas Modified Roadster records at Bonneville.
-
Joe, neat project. :cheers:
Why do guys use a seat like that in a lakester?.
You'd be sitting upright but like you said you don't like the cage.
Good luck man. I'm subscribed.
it came with the seat.
-
I guessed as much but I know you'll remedy the situation. :cheers:
-
There are folks that drive on the salt that like recline-loungers :-D
-
Looks like we will be laying the seat back and rebuilding the roll structure.
Also going to go with solid mounted axles for now.
Owner likes the looks otherwise so we are keeping the wing and fin but separating it from the body and building a vertical structure to mount it to.
I will start a proper build thread once I get rolling on the project but keep the ideas coming and so will I.
What about the flat bottom VS round bottom thing? I had thoughts of an air dam up front and skirts along the side with a flat panel for the underside.
-
Air likes round --flat could give you some down with added drag.
-
i don't know nuthin from nuthin, but i've been told that a flat bottom on a lakester might generate unwanted lift when going sidewise.
TFA's solid suspensioned, FWD drop tank lakester is round-bottomed and it was stable as heck at last WOS when i stupidly dumped the throttle right after the 5 (209mph exit) and it went into a long slide. :-o
(learning experience)
karl
-
Subscribed
-
If you are asking for opinions on round verses flat - I vote round.
I would also get a solid model made and printed of what you have there to review the effects of the wing/stabilizer you have. You may have (way) more than what you need. There are some simple tests you can run with a 3d printed model and an open car window that will give you positive proof of what you can expect in terms of aerodynamic stability. You can also test size and shape of vertical stabilizers and their effect on the aerodynamic handling characteristics they impart on the design.
Good luck with the build and keep us updated please!
-
... simple tests you can run with a 3d printed model and an open car window...
bbarn,
Absolutely BRILLIANT idea for some simple "tests"
Yet another example of those wonderful ideas that look so obvious in retrospect
karl
-
If you are asking for opinions on round verses flat - I vote round.
I would also get a solid model made and printed of what you have there to review the effects of the wing/stabilizer you have. You may have (way) more than what you need. There are some simple tests you can run with a 3d printed model and an open car window that will give you positive proof of what you can expect in terms of aerodynamic stability. You can also test size and shape of vertical stabilizers and their effect on the aerodynamic handling characteristics they impart on the design.
Good luck with the build and keep us updated please!
That very approach is in the works actually.Thanks
-
Air likes round --flat could give you some down with added drag.
The original builder was planning a front wing so we will probably just stick with that. The rear wing itself seems decent but the adjust mechanism is bulky and ugly so I will at least be changing that or covering it up.