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-   -   USGT (https://www.rctech.net/forum/electric-road/411122-usgt.html)

miket3 01-10-2013 06:05 AM

USVTA/USGT
 
thanks again for the info guys.
We ran the old bodies because of the time, we just don't have the other bodies ready to go yet.We basically converted extra VTA cars in 3 days at this point. Our track doesn't currently run this class a few of us are putting them together for the Ft.Wayne USVTA and "SCALE" nats. We did weigh right at 1460 with both cars.

I find a few things interesting in the post . When i compare lap times of the same people in both classes (try to compare apple to apple) in F1 larry's post it looks like .2 sec is the difference in the 2.

I also find it very interesting in orcadigital post that the USGT cars have ALOT more gear in them compared to USVTA ? I have my FDR at 3.7 and motor timing at 30 deg. (ballistic) . my car wasn't any faster than the VTA cars with same FDR in the straight , even with the bigger motor. I don't know just feels flat in the straight,even though good pep off the corner.

Friday we will be racing them so i will turn up the timing and also try some different FDR (like 3.4) and see how that works out with the USGT body.

cementsurfer86 01-10-2013 08:13 AM

Timing will help for sure, I generally run around 40 degrees, but remember, more timing adds more heat, so I'd try just a timing bump first, then small gear changes.

DARKSIDE 01-10-2013 08:22 AM

last weekend winners VTA GT TC

VTA
Darrell Moncrief 1 2 32 8:11.875 13.991

GT
Tim Moore 1 4 26 6:10.269 13.251

TC
Eric Anderson 1 1 32 6:10.045 11.019

jlfx car audio 01-10-2013 08:59 AM


Originally Posted by DARKSIDE (Post 11658105)
last weekend winners VTA GT TC

VTA
Darrell Moncrief 1 2 32 8:11.875 13.991

GT
Tim Moore 1 4 26 6:10.269 13.251

TC
Eric Anderson 1 1 32 6:10.045 11.019

And what times have u ran on that layout? Since u run all 3 classes

SS LS1 01-10-2013 09:14 AM


Originally Posted by orcadigital (Post 11657444)
We actually saw a much larger difference in lap times between VTA and USGT. Track is pretty fast, indoor high bite carpet. USVTA best time is a 10.9, with an average top 5 driver running 11.3 or so. Top USGT time is a 10.1, with averages 10.4 or so, again for the faster guys. 17.5 TC Blinky runs high 9's average with a 9.2 best (best I have seen was 9.5, but I am told the 9.2 happened).

Most VTA running 3.8 to 4.1, USGT running more in the 3.0 to 3.4 range, and 17.5 TC varies a lot on motor, but 3.8 to 4.5.

Oddly, we have actually found 21.5 powered cars to be closer to 17.5 TC then to VTA in overall laps and times, but seems to be a nice step in between both.

Our track results have been similar on a med grip indoor carpet track about 90'x 50'.


VTA fast lap of 11.9 avg 12.2,
USGT fast lap is 10.95 avg 11.3
17.5 blinky sedan fast lap 9.9 avg 10.2

VTA FDR 3.6 to 3.3 for 25.5 Ballistic 45°
USGT FDR 3.2 for D3.5 & Trackstar 21.5
17.5 FDR 3.8 to 3.6 various motors

So you can see we are about 1 sec diff per lap for each faster class so it is working out good for us. One thing to notice is the HPI X-pattern tires may be larger in diameter than you usually run, that can affect your gearing.

Early on I geared my 21.5 at a 3.7 FDR and it was no faster than the VTA 25.5 cars and would get very got. But geared to 3.2 and the 21.5 came alive while the temp dropped. They just seem to have so much torque they must be geared up to get the speed out of them. (on a very open high speed layout)

DARKSIDE 01-10-2013 09:41 AM


Originally Posted by jlfx car audio (Post 11658270)
And what times have u ran on that layout? Since u run all 3 classes

not sure

DARKSIDE 01-10-2013 09:55 AM

mid 11's i TC
low 12's in GT
high 12's in VTA

miket3 01-10-2013 10:56 AM

USGT VS USVTA lap times ?
 

Originally Posted by SS LS1 (Post 11658325)
Our track results have been similar on a med grip indoor carpet track about 90'x 50'.


VTA fast lap of 11.9 avg 12.2,
USGT fast lap is 10.95 avg 11.3
17.5 blinky sedan fast lap 9.9 avg 10.2

VTA FDR 3.6 to 3.3 for 25.5 Ballistic 45°
USGT FDR 3.2 for D3.5 & Trackstar 21.5
17.5 FDR 3.8 to 3.6 various motors

So you can see we are about 1 sec diff per lap for each faster class so it is working out good for us. One thing to notice is the HPI X-pattern tires may be larger in diameter than you usually run, that can affect your gearing.

Early on I geared my 21.5 at a 3.7 FDR and it was no faster than the VTA 25.5 cars and would get very got. But geared to 3.2 and the 21.5 came alive while the temp dropped. They just seem to have so much torque they must be geared up to get the speed out of them. (on a very open high speed layout)

This is exactly what i feel the car is doing at 3.7 FDR. I will gear it up on friday and see how how it goes.
thanks again for everyone's help.
Mike

snoopyrc 01-10-2013 01:34 PM

Why are you running both VTA and USGT on 25.5 motors? The only benefit I could see is if you had a low turn out you could run them together.

snoopyrc 01-10-2013 01:34 PM

Sorry. DP

cementsurfer86 01-10-2013 03:03 PM

We don't have enough to split them, and actually I think it makes the racing better.

miket3 01-13-2013 11:42 AM

We had 2 complete USGT cars run friday night. One guy went to 4.4. FDR .Our track is 60x30. His car was fast power wise but had some handling issues, which are now corrected. My gears didn't come in so I ran 3.7 with 45 deg timing. My car had alot more punch and slightly more top end.
All 3 cars look great and bring a different look to our track.

We are having a "King of the Road race March 9th.

the normal classes are
USVTA
Outlaw VTA
17.5 rubber ..blinky
1/12 17.5..blinky

If we have 7 commited guys for USGT they will have trophy's (plaques) for the class.
BATTMAN said he's coming...SWEET !!

alloyslash 01-14-2013 01:47 AM


Originally Posted by miket3 (Post 11670957)

We are having a "King of the Road race March 9th.



If we have 7 commited guys for USGT they will have trophy's (plaques) for the class.
BATTMAN said he's coming...SWEET !!

Where is this track located?

team mopar 01-14-2013 07:46 AM

Is the Dodge viper body legal for USGT? Thanks

The Captain 01-14-2013 08:17 AM


Originally Posted by team mopar (Post 11674563)
Is the Dodge viper body legal for USGT? Thanks

Yes.

We had our first USGT race at Hotslots in Urbana, IL this past Saturday. Unfortunately my servo broke during practice and I was unable to race. We only had 4 of us total, but had several people interested in the class. Hopefully it pics up interest while we continue to grow the scale classes (USGT, VTA, F1).


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