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Old 07-14-2013, 07:16 AM   #4321
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Originally Posted by yodace View Post
What's the part number for the new xray belts?
find them here

http://demonpowerproducts.co.uk/prod...r-white-p-7956

http://demonpowerproducts.co.uk/prod...r-white-p-7957
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Old 07-14-2013, 08:20 AM   #4322
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are these new belts to replace the stock belts?
or is it something just for mod? might have to test these on my '12 mod car.
any advantage for a 17.5 blinky car?
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Old 07-14-2013, 11:31 AM   #4323
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Originally Posted by Bishop View Post
So their springs are as good as the genuine Xray?, I gather they are cheaper, and come as a nice set.
The reflex springs are the best upgrade available for the T4 on tarmac. They've taken my car from very good to fantastic. Get two pairs of silvers as a base setup, and a pair of greens for the front if it gets oversteery.

They're more progressive, which for me has improved the bump handling, widened the setup window so that I hardly ever change springs, and reduced lap times by a tenth or two.
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Old 07-14-2013, 11:43 AM   #4324
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Recommend the RSD Narrow front DCJ's, very durrable and great quality.
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Old 07-14-2013, 01:47 PM   #4325
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I need some advise. My car is pushing off power. It takes a while for the front to set where I can get back in the throttle. I had one of the top drivers at the track run it, and he loved it. Ran faster with my car than his, but I think its driving style. I am wanting the car to take a set in the front faster. I have 350 shock oil front and rear with the 4.1 shock pistons, 2.7 front springs and 2.5 rear springs. Any suggestions? Thanks.
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Old 07-14-2013, 02:12 PM   #4326
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Try the graphite front arms. This makes you gets heaps more steering. They're are much stiffer.
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Old 07-14-2013, 03:34 PM   #4327
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Originally Posted by mbykerman View Post
I need some advise. My car is pushing off power. It takes a while for the front to set where I can get back in the throttle. I had one of the top drivers at the track run it, and he loved it. Ran faster with my car than his, but I think its driving style. I am wanting the car to take a set in the front faster. I have 350 shock oil front and rear with the 4.1 shock pistons, 2.7 front springs and 2.5 rear springs. Any suggestions? Thanks.
try the 2.3/2.5 springs in the front,and maybe 2.7 rear(it worked for me)
post a set up sheet and go from there,there are to many variables to just take a guess
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Old 07-14-2013, 03:36 PM   #4328
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Originally Posted by Andrew S View Post
Try the graphite front arms. This makes you gets heaps more steering. They're are much stiffer.
are they not softer?i have the hard arms,i thought that the graphites were softer so more flex more traction?
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Old 07-14-2013, 03:55 PM   #4329
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I found that once grip got up, the 2.7F and 2.5R combo is a bit too pushy. I've dropped the front down to 2.5F, and used the progressive 2.3-2.6R in the rear, seems to give it a nice balance, but still easy to drive.

Anyways, just picked up some RSD asphalt progressive spring set. Anyone know the ratings as compared to the Xray springs?

-Purple: 18.4-19.0 lb/in
-Red: 17.1-18.0 lb/in
-Green: 15.2-16.0 lb/in
-Silver: 14.8-15.8 lb/in
-Yellow: 14.5-15.2lb/in
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Old 07-14-2013, 04:01 PM   #4330
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Quote:
Originally Posted by mbykerman View Post
I need some advise. My car is pushing off power. It takes a while for the front to set where I can get back in the throttle. I had one of the top drivers at the track run it, and he loved it. Ran faster with my car than his, but I think its driving style. I am wanting the car to take a set in the front faster. I have 350 shock oil front and rear with the 4.1 shock pistons, 2.7 front springs and 2.5 rear springs. Any suggestions? Thanks.
Try increasing rear droop.

If that didn't do enough, try decreasing wheelbase. (Moving rear axle towards front.)
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Old 07-14-2013, 04:03 PM   #4331
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I've been very happy with 2.5-2.8f and 2.5 rear. I also liked blue rsd front black rear.
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Old 07-14-2013, 05:06 PM   #4332
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Thanks for the advise. I am going to try some different spring combos and how that works. I was thinking that might be the problem. So I ordered some springs and will have to go testing. Thanks to everyone.
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Old 07-15-2013, 01:51 AM   #4333
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Quote:
Originally Posted by daleburr View Post
The reflex springs are the best upgrade available for the T4 on tarmac. They've taken my car from very good to fantastic. Get two pairs of silvers as a base setup, and a pair of greens for the front if it gets oversteery.

They're more progressive, which for me has improved the bump handling, widened the setup window so that I hardly ever change springs, and reduced lap times by a tenth or two.
Where do you buy Reflex Springs from?? Thx
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Old 07-15-2013, 02:14 AM   #4334
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Originally Posted by onetenxray View Post
Where do you buy Reflex Springs from?? Thx
http://www.reflexracing.net/RSD-20mm...ir_p_1735.html
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Old 07-15-2013, 02:24 AM   #4335
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Originally Posted by chasingthepack View Post
are they not softer?i have the hard arms,i thought that the graphites were softer so more flex more traction?
The graphite arms have no flex at all, the standard hard arms have very little movement.
When I made the change on the T3'12, which had medium arms, I barely noticed any difference, so my worry is that there would be even less difference on the T4.
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