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Old 11-19-2003, 08:01 PM   #1
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Default foam compounds

i about to buy some new foams, for my xxx-s, and i was wondering if jaco and trc foams are the same compounds, or are there scales different. I need plaids and purples, and at my lhs, jacos are cheaper. just trying to save me some money, hopefully
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Old 11-19-2003, 08:38 PM   #2
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anybody?
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Old 11-19-2003, 08:44 PM   #3
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What a deal, JACO's are better too!

The plaid and purple compounds are the same, JACO versus TRC. TRC has a bunch of other stuff but I don't know what they are in shore ratings.

In Mod sedan a lot of the guys are using the double pink rears and double pink/orange fronts.

Last edited by Bobby Flack; 11-19-2003 at 09:18 PM.
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Old 11-19-2003, 08:52 PM   #4
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um, palid is different than purple, and i race stock
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Old 11-19-2003, 08:57 PM   #5
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Plaid is a purple with an orange (harder) outer ring about 1/4 inch wide.
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Old 11-19-2003, 08:59 PM   #6
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yea, it's sorta important in touring, okay ,thanx, i want to make sure the companies where the same, because most people run trc, i and i want jacos
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Old 11-19-2003, 09:00 PM   #7
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I'm using plaid and purple and yes they are different. Plaid's have a hard outer ring and purple on the inside (front) and Purple's are the same all the way across tire (rear) I like the dish wheels. CRC also sells sedan foams and are the cheapest in our area. Hope this is of some help.
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Old 11-19-2003, 10:01 PM   #8
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i think what he is asking is are the compounds comparable across brands. ie. is a trc plaid the same as a jaco plaid, or trc purple the same as a jaco purple..

i would imagine they are.. however, the forming process coudl be (and most probably would be) different between companies.. thus producing a close.. yet slightly different foam.


but in conclusion.. lol... anyone ever compared between brands?


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Old 11-20-2003, 10:02 AM   #9
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TRC shore ratings are below, I don't know the jaco ratings.

Pink = 30
Brown = 32
Magenta = 35
Tan = 37
Purple = 40
Dbl Purple = 45
Lime = 42
Red = 45

Plaids are purples(40 shore) with a strip of 45 shore on the outside. The strip on TRC's is 5mm and on the jaco's it's a bit bigger(7/8mm?). I believe the Jaco plaids are called purple/orange. There is nothing wrong with running purple front and rear, you would normally run plaid front if the track is so high taction(carpet) that traction rolling is a problem. I don't think you can say the jaco or trc foams are better. You can however say the rims are better, the last time I touched jaco foams the rims were terrible flexible. I've heard they have now changed to stiffer rims though I have'nt seen them yet to compare stiffness.

I've seen people run the double pinks and they had sick traction(on a high traction track), this may help or hurt depending on your track and driving style. I run 40 shore nitro foams on all 4's and have enough traction once compound is applied, there great and last for ages.

Hope this helps.
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Old 11-20-2003, 03:38 PM   #10
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thanx people, i will be racing at trackside, and road rage, and good, i can buy the tires i want, and i put sauce on the inside half in the front, and all of it in the rear.
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Old 11-20-2003, 03:50 PM   #11
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I see that Cyrul & Lemieux recommend running on high traction tracks. Cyan (35.45) shore up front with either tan or magenta in the rear. in their the add for TRC. Has anyone tried those set ups?
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Old 11-20-2003, 04:27 PM   #12
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The car has silly rotation with that set up (Cyan or Pink-Plaid fronts and double pink rears)

Jaco came out with new wheels recently that are slightly larger in diameter so accomidate people running their tires to the rim and also keep the droop setting okay (Since on the old rims you would really have to mess with your droop to run small tires). So MEASURE YOUR RIMS! With Jaco's at least.

The new Jaco compounds in 12th scale are very different than the TRC ones and even the old jaco compounds. You can tell the old vs. new jaco in 12th scale by the white (new) and grey (old) wheels.
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Old 11-20-2003, 06:07 PM   #13
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Jaco and TRC compounds are definitely different.

Ill give you an example, using 1/12 rear tires, and some shore ratings
Jaco Grey: 33-37
Jaco White: <33
TRC Grey: 29-30
TRC White: 25-26

These are pretty different from each other, the TRC is just SO much softer. So a good combo in TRC may not work in Jaco tires.
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