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General Discussion » Penrose Rules Rule » 8/17/2014 12:03 pm

Gary Lum
Replies: 46

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Is there a place to see the rules or at least what these cars look like?  Sounds like a cool class...  We are always looking  for classes to try out in California...

No wheelie bars cars and dragsters » upgrading power for no bar » 7/12/2014 7:29 pm

Gary Lum
Replies: 10

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Hmmmm....  I would think a single magnet 20 motor should be more than enough to push a 175 gram car into the 1.090 range.... 

Here's a question for you....  Is your no bar car solid or slip joint?  Ok, I lied, I have another question...  Why is it so heavy?  Where is the weight placed?  All on the nose?

General Discussion » Suggestions... not fast enough » 6/24/2014 9:33 am

Gary Lum
Replies: 23

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We are cool Marty....  I'm pretty sure you and I are on the same page....   

Anyways, been doing some work with the spring pressure....  We will know for sure tomorrow....

General Discussion » B&B chassis » 6/20/2014 6:42 pm

Gary Lum
Replies: 2

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Greg Bridgewater of B&B builds a great car.  Have a slip joint chassis and his c can chassis, both work really well

General Discussion » Suggestions... not fast enough » 6/20/2014 6:31 pm

Gary Lum
Replies: 23

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Marty wrote:

Gary Lum wrote:

Awesome!!! Looks like it's coming around!!! I was just thinking about this... What spring/brush combo are you running? And is it shunt wired? I picked up a TON when I stepped the spring pressure up and added shunt wire....

Making passes is the best way to learn what the car wants. We don't race dynos or power supplies...

Try this. Measure your spring pressure with shunts. Remove shut and reset spring pressure to previous number. Let us know much difference you note.

I don't race a dyno but it sure is a good myth buster http://cdn.boardhost.com/emoticons/wink.png

 
.007 slower and same mph within .02 mph with everything the same pressure wise less shunts.  Could have been a glue thing.  I can't control the glue downtrack during a race....

What myth is there to bust?   Raising spring pressure picked my car up a ton and my springs last longer.  You can run shunts or not, but for me, I just don't like the idea of losing a race cause of a spring failure....   I've had motors on my dyno that made great peak power but sucked on track.  Couldn't match the rpm rate with a good enough gear /glue combo.   What part of my statement was wrong?  Marty, if you thought I was taking a dig at you, I'm sorry, I was not.  Hope you're doing well.

General Discussion » Suggestions... not fast enough » 6/20/2014 10:50 am

Gary Lum
Replies: 23

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Awesome!!!  Looks like it's coming around!!!  I was just thinking about this...  What spring/brush combo are you running? And is it shunt wired?  I picked up a TON when I stepped the spring pressure up and added shunt wire.... 

Making passes is the best way to learn what the car wants.  We don't race dynos or power supplies...

Dragsters » Slipjoints... what motor do you use??? » 6/15/2014 7:14 pm

Gary Lum
Replies: 4

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I have a ceramic quad mag 12 motor in my B&B dragster.  1 3/16 x .300's, 12/56,  runs .780's @ 70+ mph with very light glue.  I dunno, I've run a vr12 motor in mine with 1.070x.500's and ran into the .6's....  Too much is never enough in my book....   .

General Discussion » Suggestions... not fast enough » 5/15/2014 4:39 pm

Gary Lum
Replies: 23

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Here's the incrementals from one of my passes.... 

http://i47.photobucket.com/albums/f181/67vwracer/Mobile%20Uploads/image_zps59d1bc47.jpg


And here is the car....

http://i47.photobucket.com/albums/f181/67vwracer/image_zpsf89bb3e7.jpg

General Discussion » Suggestions... not fast enough » 5/15/2014 12:19 am

Gary Lum
Replies: 23

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Yes, a .435 tire will help....  Set your bars pretty tight.... I set mine to where they are barely touching the track, but still able to turn....  I haven't run one of those chassis in a long time, but I did add struts to the wheelie bars and  I used to pin the body through the front wheels....  Hope that helps a little....

General Discussion » Suggestions... not fast enough » 5/14/2014 7:19 am

Gary Lum
Replies: 23

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Something is wrong Macman....  The 60' is way off for being that light...  We run a 125 hardbody class out here and we are running .700's.  We ran a 75 gram lexan funny car class and Joe Cardoza and I dipped into the .5 second range with those....

Looking at your chassis, I would add "struts" or down bars to the wheelie bars just to stiffen the back half a bit...  These motors pound the bars pretty good when they are hooked up... 

For the funny car, I was geared 18/56 with a 1.030 x .400 wide tire.  With the 125 gram car, I'm geared 13/56.  Motors were stock out of the bag (ProSlot does a pretty good job with these motors) with the only additions being shunt wire and grooving the brush for the shunt wire. 

Looking at your short and 1/2 track times tells me you are probably spinning the tire.... It takes a LOT to bog these motors especially if you have a light car....  With my lexan car I was in the low .090-high .08 range and with the hardbody car, I am in the high .09-low .10 range....  At the time we raced the lexan cars, we didn't have 660' timers, so I can't help you there, but with the hardbody cars we are in the low .420 range at half track and around 79 mph out the back door....

Hope that helps point you in the right direction....

General Discussion » Kmr Gen 1's Take The Win At Topslots Street Outlaw Race! » 3/07/2014 10:06 pm

Gary Lum
Replies: 5

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Nah, its a Revell 99 Mustang Cobra that was originally meant to be a MMPS.  JDS Annihilator chassis, .082 stainless mains, .082 stainless wheelie bars with .072 stainless struts.  It takes a different bar setting, but it has been deep into the .6's  and into the .370's (1/8 mile) with a vx motor...  Never figured out why, but this car will get down any track pretty good.  Must have been having a good day when it was built is the only thing I can think of....  http://cdn.boardhost.com/emoticons/grin.png

General Discussion » Kmr Gen 1's Take The Win At Topslots Street Outlaw Race! » 3/06/2014 12:32 am

Gary Lum
Replies: 5

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Great job Timmy and Cody!  Told ya that car would handle anything you throw at it....  Nothing fancy,  might have just been a fluke build, but it has always gone down the track quick.  Now that you know what it likes, load it for bear and go hunting....  http://cdn.boardhost.com/emoticons/grin.png

General Discussion » neo chassis question » 10/13/2013 4:21 pm

Gary Lum
Replies: 2

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.062 wire is what I would try....  Add a .050 brace to keep the motor plate from walking back and forth...  I brace my motor plate from the top of the plate to the "v" brace in the back of the motor box...

Builds in progress. » My New "Outlaw" Mustang » 8/12/2013 4:50 pm

Gary Lum
Replies: 9

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Koford drag...  I'm not proficient enough to mix consistently....  I think a mix would let me run less...  Oh man...  Wish I has some Bogg.....

Builds in progress. » My New "Outlaw" Mustang » 8/11/2013 8:38 pm

Gary Lum
Replies: 9

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Marty, I build em to crash....  If they make it all the way down, it's usually fast....  LOL!  http://cdn.boardhost.com/emoticons/tongue.png

Builds in progress. » My New "Outlaw" Mustang » 8/11/2013 8:37 pm

Gary Lum
Replies: 9

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stretch wrote:

How Much glue did it take?

 
A LOT!!!  Not as much as I thought though...  I think I could prep and fire it down in 2 minutes though...

Builds in progress. » My New "Outlaw" Mustang » 8/11/2013 11:24 am

Gary Lum
Replies: 9

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It was fast.... http://cdn.boardhost.com/emoticons/grin.png
  You're within a few numbers on the .6 side....  .612 was the best pass.... 

.082 but not stuffed.....

Builds in progress. » My New "Outlaw" Mustang » 8/10/2013 10:20 pm

Gary Lum
Replies: 9

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Hey Marty,

It's my "little" motor....  http://cdn.boardhost.com/emoticons/wink.png
  It's Timmy's thick neos with a .459 diameter Pro Slot 7/4 arm....  Nothing really special, mags not shimmed, just centered and epoxied in place, bearings on both ends, shunted, reworked Camen regular springs and Golddust brushes.... I think this is gonna be the last go round for this arm, it's been to Alpha twice for balance and the com is .184.....

The body is solid in the front, but floats in the rear...  Not much side to side, maybe .002 but enough to move up and down the same....  It seems to work decent so far.... 

I have a little work to do, take a look at the passenger side braid (left in the pic)....  I got a bit rushed and didn't fluff the end out like normal, but it welded the tip slightly and left a weird burn mark right above......

Roy, try Pepto Bismo.....  http://cdn.boardhost.com/emoticons/tongue.png

Builds in progress. » My New "Outlaw" Mustang » 8/09/2013 8:58 pm

Gary Lum
Replies: 9

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I know Mustangs are like bellybuttons, but I'm a Ford guy, so.....

http://i47.photobucket.com/albums/f181/67vwracer/0a5a86ca-9621-4262-9fde-8c380cabbd10_zps7afed3f0.jpg


It's a bit heavier than I would have liked, but I still have to cut the axle and there's a few things I can trim up to lose a few grams.... 

 http://i47.photobucket.com/albums/f181/67vwracer/weight_zpsdb9bf80b.jpg


Anyways, got to make a few shakedown passes, it runs really good......  Best 60' was .087 and the mph was in the mid 90 mph range......

http://i47.photobucket.com/albums/f181/67vwracer/93e08efd-4b1a-421f-9651-0d17f60afabe_zps2dc2daf6.jpg

 

Builds in progress. » Need help with P/S body. » 6/13/2013 7:16 pm

Gary Lum
Replies: 1

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Let me check with Albert...  He may be able to shoot a quickie one color paint job...  You need a loaner car?  I can send one if you need it....

Builds in progress. » New Build » 4/22/2013 10:04 pm

Gary Lum
Replies: 10

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Do it!  We added wheelie bars to a G7 wing car and ran it a few times.  It wasn't too quick, it ran out of gear right before the finish line, but it was easy to hook!

Motors Forum » Brushes » 3/20/2013 9:51 am

Gary Lum
Replies: 5

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Wish I had some of the old Mura SBF IIs....  Never had as many probems with them as I've been having with the golddust....

Chassis » Inline Chassis Question » 3/12/2013 9:18 pm

Gary Lum
Replies: 6

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Check to make sure that your tires are the same height, first....  Really critical on an inline car.  The S7 Python is a great chassis.  It can take pretty much everything that I throw at it.  Check to make sure that there are no busted solder joints. 
Could be too stiff, but I have run .082 tube and no problems.  How is the body mounted?  Difference in mount?  On my S7 car, I don't run too much rear float.  The S16d won't make too much power stock, that could a problem also.  The chassis may be loading and unloading (flexing and rebounding too fast due to not enough power to carry the car out, glue keeps the car "stuck", so you won't notice the hop.  Well, at least that's what happens to my stuff....).  If I have that problem, I will run a down bar from the motor plate to near the nose.  If it works, you can either leave it or re-rail it with wire....

Motors Forum » Neo motor issue's » 2/10/2013 10:20 pm

Gary Lum
Replies: 3

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Looks like the com came apart....  Maybe from tire spin or too low a gear?  I don't think it;s the motor builder or your fault, more like a over rev....  But, without having the arm in my hand, it's hard to tell.....

Chassis » Adjustable Wheelie Bars ???? » 12/20/2012 10:26 am

Gary Lum
Replies: 20

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Man, I'm glad that you and your wife are doing well!!!!  Don't forget that whenever you're ready to put those bars into production, I'm waiting in line!!!!  The ones that I saw were pretty sturdy and looked great!!!!

Hope you and your wife have a Merry Christmas!!!!

Talk to you soon buddy!!!!

Gary

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