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01-19-2012 | 07:12 PM
Tech Master
Joined: Aug 2009
Posts: 1,416
From: Tucson, AZ. USA
Well, I like the ones I've tried, the new exotic rubber, orange, yellow, etc. And I like the older fronts Xceed has been marketing, but those rears don't quite hook up on our rug, so I was wondering about the kind of foam the newer compounds were.
01-19-2012 | 07:26 PM
01-19-2012 | 07:59 PM
Tech Regular
Joined: Nov 2001
Posts: 356
From: NJ
Also to top on ehat wes has said u also want to make sure ur tires are completely dry i mean completely! dint put on the track and leave marks it makes it very inconsistant in the begin and takes longer to get up to temp...Use the blue or white heavy paper towels when whiping not a "tire rag" rason being u dont wan to contaminat ur foam before even putting on the track with different compounds or place down ur car on the section of track were its dirty, try putting it down in the groove...
If u have notice alot of the pros or big name racer will normaly have a help who put there car down for them the will whipe the tires off set them down in the groove they check there turning radius or do a couple quick tns to get the cars feel then the helper will scrub them in.. and set them down in the startin spot and "set the suspensions for the start for max forward bite... Rememeber tires are 90% of the setup and makes all the diff in the world from being on pace to being that .2-.3 lower a lap just because proper maintence is done
If u have notice alot of the pros or big name racer will normaly have a help who put there car down for them the will whipe the tires off set them down in the groove they check there turning radius or do a couple quick tns to get the cars feel then the helper will scrub them in.. and set them down in the startin spot and "set the suspensions for the start for max forward bite... Rememeber tires are 90% of the setup and makes all the diff in the world from being on pace to being that .2-.3 lower a lap just because proper maintence is done
What tires are you running front/rear, and what tires is everyone else running? That's a good starting point, figuring out if you are running the right tire in the first place and adjusting from there.
Tire care changes from track to track, sometimes. At our club we just defuzz the tire. If you stay in the driving line though the tires come off very clean. Most of us also set up our cars so we run full dope across the front.
As far as ride height, I always set my car up square. 3.7mm across the deck, and I start an evening there. By the end of the night I usually am around 3.5mm rear and 3.3mm in the front. I don't bother adjusting during the night unless my rear/front bias grows greater than .2mm. You can experiment with chassis sag, but typically for me I always run 1-2mm of uptravel and no chassis sag.
The length of time you sauce, and track temperature play important roles in consistency. If the track is getting colder as you progress through a race day it may be losing grip, you may need to sauce longer or run a softer tire. On the other hand if it is getting warmer and grip is coming up you may sauce less. I generally try to sauce for 15 minutes and adjust from there. If the car feels loose late in the run I will go to 20 minutes, if it is too edgy in the beginning but feels fine late, I will sauce for 10. For me I've found its important to sauce the same time every time however. Just slapping it on and calling it good introduces inconsistency.
The easiest thing to do is see who's clearly faster consistently and ask them what they are doing. It will get you on pace faster than speculating on the forums since none of us run that track.
If you are new enough to this and don't know what to ask figure out this;
- Tire Compound.
- Tire Sauce, applicatino length, and amount across front/rear.
- Tire Diameter and sidewall radius amount.
- CA on the side wall, if so, how far.
- Ride height.
Other things to consider that effect consistent handling;
- Diff smoothness and tightness. Ask to spin their diff, if it's clearly smoother than yours you have to fix it.
- Dampening rates and springs. Are you running a similar setup?
Good luck!
Tire care changes from track to track, sometimes. At our club we just defuzz the tire. If you stay in the driving line though the tires come off very clean. Most of us also set up our cars so we run full dope across the front.
As far as ride height, I always set my car up square. 3.7mm across the deck, and I start an evening there. By the end of the night I usually am around 3.5mm rear and 3.3mm in the front. I don't bother adjusting during the night unless my rear/front bias grows greater than .2mm. You can experiment with chassis sag, but typically for me I always run 1-2mm of uptravel and no chassis sag.
The length of time you sauce, and track temperature play important roles in consistency. If the track is getting colder as you progress through a race day it may be losing grip, you may need to sauce longer or run a softer tire. On the other hand if it is getting warmer and grip is coming up you may sauce less. I generally try to sauce for 15 minutes and adjust from there. If the car feels loose late in the run I will go to 20 minutes, if it is too edgy in the beginning but feels fine late, I will sauce for 10. For me I've found its important to sauce the same time every time however. Just slapping it on and calling it good introduces inconsistency.
The easiest thing to do is see who's clearly faster consistently and ask them what they are doing. It will get you on pace faster than speculating on the forums since none of us run that track.
If you are new enough to this and don't know what to ask figure out this;
- Tire Compound.
- Tire Sauce, applicatino length, and amount across front/rear.
- Tire Diameter and sidewall radius amount.
- CA on the side wall, if so, how far.
- Ride height.
Other things to consider that effect consistent handling;
- Diff smoothness and tightness. Ask to spin their diff, if it's clearly smoother than yours you have to fix it.
- Dampening rates and springs. Are you running a similar setup?
Good luck!
01-20-2012 | 11:24 PM
A tip for all 1s racers who like to run boosted spec motor; if you can find an original Trinity Duo new or in good shape, buy it. My Duo 13.5 took all the boost my Stock Spec V2 could give it, ran scary lap times, and stayed cold. Its like magic. If I tried to do that with my X12 it would burst into flames or something.
01-21-2012 | 06:05 PM
Tech Master
Joined: Aug 2009
Posts: 1,416
From: Tucson, AZ. USA
01-23-2012 | 12:09 AM
Tech Apprentice
iTrader: (3)
Joined: Mar 2009
Posts: 69
From: Fort Myers FL.
Mini metal lathe for truing tires
A wile back I posted questions about this project. HarryLeach gave me some good info starting out, thanks Harry. Well I finally finished it and happy with the results. It took a ridiculous amount of time because of screw ups and all the different wheel sizes. It would of been way easier to buy a purpose built tire truing machine, but why miss out on the fun and frustration of diy. Heres the photos of the results.
01-25-2012 | 08:16 AM
Tech Apprentice
iTrader: (1)
Joined: Jun 2009
Posts: 94
Does anyone make 'upgraded' rear ride height spacers for the CRC GenXL?
I have broken two of them in three weeks by sliding sideways into the boards.
One of my fellow racers has some red ones that are made of a different material, but they were given to him, and he has no idea who makes them or where to get them.
Thanks
I have broken two of them in three weeks by sliding sideways into the boards.
One of my fellow racers has some red ones that are made of a different material, but they were given to him, and he has no idea who makes them or where to get them.
Thanks
01-25-2012 | 08:48 AM
Tech Master
Joined: Feb 2009
Posts: 1,859
From: Hampton, VA, USA
A wile back I posted questions about this project. HarryLeach gave me some good info starting out, thanks Harry. Well I finally finished it and happy with the results. It took a ridiculous amount of time because of screw ups and all the different wheel sizes. It would of been way easier to buy a purpose built tire truing machine, but why miss out on the fun and frustration of diy. Heres the photos of the results.
Glad I could give you some help.
On your saw blade holder, you might get a smoother cut, and less chance of chunking the foam off the wheel if it were angled 30-45 degrees off vertical, makes the foam cut profile more of an angle, and will let you get tires down to size in fewer passes.