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#1 smithspeedway

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Posted 01 May 2012 - 11:29 AM

I've seen examples of many modifications to the Womp chassis. What have you tried that actually made a difference?




#2 Guy Spaulding

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Posted 01 May 2012 - 11:34 AM

Give it to your kids. Eventually they'll step on it, and it will surely handle better! :laugh2:

Or

You can bend it yourself, bending it up in front and back so the motor and main part of the chassis are level with and just a little over 1/16" above the track. Then install bracing to keep it that way

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#3 TSR

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Posted 01 May 2012 - 11:46 AM

We had to chose between several titles for this forum, like Wide World of Womps or Wrestling With Warts.
Eventually, reason prevailed and it is indeed a world of its own.

Philippe de Lespinay
 
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#4 Guy Spaulding

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Posted 01 May 2012 - 12:04 PM

Hey! Is that any way to talk about a mongrel? :laugh2:

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#5 TSR

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Posted 01 May 2012 - 12:12 PM

I deeply apologize to all the World's Mongrels. :(

"Me, Sorry. You, Jane?"

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#6 Arne Saknussem

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Posted 01 May 2012 - 02:12 PM

I've seen examples of many modifications to the Womp chassis. What have you tried that actually made a difference?



To begin with, the following remarks pertain to the real, honest to gosh Womp-Womp by Parma only.
Short of a wedge w/wings, the best handling Womp I ever ran was a Parma pick-up (as in truck) body.
I would adjust the front end so that the wheels were a wee bit off the track on the straights. The front axle had a large amount of sideplay (as much as the tech inspector would allow).
The rear of the chassis was kicked up to get the motor shaft and the axle center line on the same plane. And I always overgeared the car (that is, the smallest pinion generally gave the best results).

The weight needed on the car was a small square of Slick 7 sticky lead measuring 1/2" x 3/8" placed just ahead of the motor. And I can't overstress the fact that I never had two Womps handle well (excuse me... I mean as well as these things ever do) with the same setup. :dash2:

Thankfully, my exposure to Womps left me with no long-term health problems. :crazy:

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#7 Hworth08

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Posted 01 May 2012 - 04:05 PM

The soldiers from Fort Campbell liked the Womps when I was racing at Clarksville, TN.

I guess we went too far and sort of "undid" the purpose of a Womp but we had those things booking, about a half second slower than a Flexi using the no down force Asphalt Modified body.

We cut the inline motor bracket off and turned the motor sideways into an anglewinder. Cut the guide tounge off and extend a spring steel one out a half inch. Cut the body mounting pans off and solder them back on as floating. We kept the fat O-ring front rims but moved the axle up so the frame had just a few thousands clearence. Cut a semi- circle between the rear axle up-rights to remove weight behind the axle. The rear tires almost always needed narrowing to adjust tilting.

That's all I remember. Those changes turned the Womp into almost a Flexi quality race car. I'm not sure we accompolished much but with a nice paint job they were pretty nice looking cars and not too out of scale.
Don Hollingsworth

#8 NY Nick

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Posted 01 May 2012 - 05:31 PM

That is something I have to try, were they steel or brass chassis?
We made the pans move and put a bend so the front of the car was lower to the track.
Nick Cerulli

#9 slotcarone

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Posted 01 May 2012 - 06:39 PM

We raced a whole series with womp chassis or the Champion thumper or the brass womp and were able to get them handling great. A lot of bracing and lead with some 1/16 brass strip thrown in. With falcon motors they handle real well.

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#10 Dominator

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Posted 01 May 2012 - 08:46 PM

Here are some pics of a womp I "wall proofed". I used .047 to protect against most normal-heavy hits. If one feels they test the walls more often .055 will be a better choice. The motor/rear braces really solidifies that area with the "L" braces added to the motor. Making the rear end strong is critical to Womps or another inline. The area circled on the rear brace is where the two ends of the wire meet. usually I make two "C" braces as this is usually easier to make than one continueous peice with 6 bends. I just happen to get lucky when doing this one.
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#11 Ivan B

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Posted 02 May 2012 - 06:55 AM

Here are some pics of a womp I "wall proofed". I used .047 to protect against most normal-heavy hits. If one feels they test the walls more often .055 will be a better choice. The motor/rear braces really solidifies that area with the "L" braces added to the motor. Making the rear end strong is critical to Womps or another inline. The area circled on the rear brace is where the two ends of the wire meet. usually I make two "C" braces as this is usually easier to make than one continueous peice with 6 bends. I just happen to get lucky when doing this one.

Nice looking brace,thanks for posting off to try it now.
Ivan Beck

#12 Hworth08

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Posted 02 May 2012 - 08:24 AM

We used Parma steel frame. The plating isn't the best soldering but okay.

We were diddling with the Womps a bit before the Falcon 1 motors came out. We used the slower Deathstar motors that didn't quite make the grade for a Flexi. The lighter FK motors should be great.
Don Hollingsworth

#13 Bill from NH

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Posted 02 May 2012 - 08:54 AM

Don, isn't that plating a zinc, similar to what Parma used on the Flexi Kar? I know it's not nickel.

Do you recall whose Asphalt Modified bodies you ran on them? Didn't Rhino make a couple? :)

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#14 smithspeedway

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Posted 02 May 2012 - 11:14 AM

There are tons of modified bodies avaliable.
Rhino
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Parma
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#15 smithspeedway

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Posted 02 May 2012 - 11:15 AM

So, bending the chassis up helps? All these years I've been fixing mine when they bend up.

#16 Hworth08

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Posted 02 May 2012 - 01:20 PM

Hi Bill,

I'm pretty sure the Ashpalt Modified ( I think that was the name) was made by Champion. Seems like there was one called a Typhoon also.

I believe the Parma Womp does use the same plating as a Flexi 1. Doesn't solder as well nickle but it's okay and the plating is tough, it doesn't "flake" off as nickle sometimes can.
Don Hollingsworth

#17 Guy Spaulding

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Posted 02 May 2012 - 01:36 PM

So, bending the chassis up helps? All these years I've been fixing mine when they bend up.


Well, if your tire diameters are like those of the original Womp tires, there's something like 3/16" chassis clearance. This high center of gravity does wonders for handling :sarcastic_hand:

Bending the front and back should lower the center of gravity substantially. This will also make any added weight work better too. :D

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#18 smithspeedway

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Posted 03 May 2012 - 10:11 AM

Hi Bill,

I'm pretty sure the Ashpalt Modified ( I think that was the name) was made by Champion. Seems like there was one called a Typhoon also.


They were. The Typhoon and Cyclone are the two bottom pictures and are now made by Parma.

#19 Lenny Broke

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Posted 08 May 2012 - 07:54 PM

Hi Guys
It's great to see a forum for womps here despite le Patron's seeming disdain for the little critters :)

Here's a pic of one of my survivors from the late seventies.

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We used to run them in period with Group 12 C can motors with all the bits like elephant ears heat sinks, buss bars and shunted brushes.

The chassis got to this stage of modification because we gradually developed them through changes in the motor spec for the class.
When a new track was built with acouple of long straights the standard Johnson 222's were not lasting long especially with the gearing we were running to take advantage of the straights so most race night there were a number that would let the magic smoke out and stop. The decision was taken to upgrade to another motor. At the time the closest motor in performance that would be reliable enough and readily available was the Mura group 12. After a while the chassis was found to be wanting with the more powerful motor so a further rule change allowed chassis mods but retaining the inline cinfiguration. this was where we got to as diepicted in the picture above. Bodies were fairly free in what was allowed but no wings were allowed. My personal favourite was the Parma Chev Monza but towards the end a few guys were starting to use the 1/32 scale sized wing car bodies that were just becoming available. Therewas a push to ban the wedge shaped bodies and retain the more traditional womp type bodies but alas the raceway closed and we had nowhere to race.
I've since restored the chassis and had it running but with more contemporary running gear in it like a Plafit Fox motor as it's more suitable for the shorter home tracks that I race on now.
I've been trying to track down a Parma Monza body for so I can run it with the same body I ran back in the day but after many years I've had no luck at all finding one
I have very find memories of that time and always support womp racing programs now when ever they ar organised locally.
Cheers
Alan
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Alan O'Dea

#20 Tim Neja

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Posted 09 May 2012 - 12:24 AM

The first pic shows the mods I did. Braced the frame around the rear axle box all the way up through the front axle area. Then another around the motor and rear bushings down to the rear of the car. It stiffened the chassis a lot--of course--FIRST--I used a flat plate and made sure the chassis was nice and flat to the block. Then a shot of the Hot Rod bodies I used.
FWIW
T

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She's real fine, my 409!!!

#21 MrWeiler

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Posted 16 May 2012 - 01:04 AM

Here are some pics of a womp I "wall proofed". I used .047 to protect against most normal-heavy hits.


There is no such thing as a "wall proof" womp--just wall resistant... :D
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#22 Mark H

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Posted 17 May 2012 - 09:25 PM

heres my massacred womp
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can you believe i won a race with this thing?
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#23 smithspeedway

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Posted 20 May 2012 - 09:53 AM

Nice design. I can believe you won. The front must felx a bit and stay down in the slot well.

#24 Simmo Mylo

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Posted 22 August 2012 - 05:30 AM

my womp runs great with my custom 1/32 wing car body i made from laminating sheets :). it can easily keep up with a flexi chassis running a 16d around a figure 8 course. once the tires have warmed up.

#25 Bill from NH

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Posted 22 August 2012 - 06:58 AM

Simmo, can you show us a photo of your wing body? I'm sure there are others, besides me, who would like to see what you created. :)

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#26 Simmo Mylo

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Posted 22 August 2012 - 07:19 AM

heres my wompy wing car :P. its made completely out of A4 laminating sheets as are all of my custom bodies. when my Flexi 5 was running a its best it would do a best lap of 2.375 around the yellow / grey figure 8 track. A standard flexi 5 running a 16D would average a 2.6 sec lap. my wompys fastest lap ive seen with my wing car was a 2.7. it also does make a difference as to how man people are on the track due to them sucking the power out of the track. this means i can hold the trigger down flat around 95% of the track. if it were me by my self there would be too much power and id still have to back off and drive it like a normal womp. But in saying that i have proven many times to my colleagues that the wings make a huge difference to the characteristics of the car.

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