View Poll Results: what's your tire choice?
Protoform
46
30.67%
HPI
104
69.33%
Voters: 150. You may not vote on this poll
4318LikesU.S. Vintage Trans-Am Racing Part 2
06-19-2014, 06:35 AM
#7652
Hi everyone,
I am new to VTA racing. I am going to run my 13' Xray T4 with my own brass weight system to include two brass weights that two other companies produce. My car weighs in at 1562 with body and am 6mm ride height front and rear. The only foreseable issue I have with VTA rules is the GTB 3/ Ballistic 25.5. I have one question with regards to gearing. I have the 64 pitch setup with a 35t pinion and 116 spur. Will this fly on a 90x60 track roughly? I also posted some pics of my first VTA body/ 1966 Mustang GT. Most of the details are painted in to include all the lights, chrome, stripes and window trim. I look forward to any and all feed back.
I am new to VTA racing. I am going to run my 13' Xray T4 with my own brass weight system to include two brass weights that two other companies produce. My car weighs in at 1562 with body and am 6mm ride height front and rear. The only foreseable issue I have with VTA rules is the GTB 3/ Ballistic 25.5. I have one question with regards to gearing. I have the 64 pitch setup with a 35t pinion and 116 spur. Will this fly on a 90x60 track roughly? I also posted some pics of my first VTA body/ 1966 Mustang GT. Most of the details are painted in to include all the lights, chrome, stripes and window trim. I look forward to any and all feed back.
Your gearing is, unfortunately, a ways off. your fdr is about 6.3 and you should be somewhere in the vicinity of 3.5 to 3.75 (I pretty much run 3.5 with as much timing as the motor can handle - others may do it differently). The 116 spur is much too big. I have run several xray's in vta, including a 2013 and for that size track I would use a 92 tooth spur and maybe a 49 tooth pinion - then gear / adjust timing based on motor temp & performance.
Nice job on the paint.
06-19-2014, 07:01 PM
#7653
Tech Addict
Would someone point me to the "updated ESC rules" post(s), so that I may update our Web site for Vintage Stock Cars as well?
Also, has/was the USVTA site updated and current yet with the new stuff?
Also, has/was the USVTA site updated and current yet with the new stuff?
06-19-2014, 07:41 PM
#7654
Tech Champion
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06-19-2014, 11:27 PM
#7655
Tech Adept
06-20-2014, 05:03 AM
#7656
Tech Addict
Can someone actually point me to the actual list of approved speedos?
Yeah, I've found the ROAR website and I've found the rulebook. I see a lot of specs. Justl don't see a "list".
Yeah, I've found the ROAR website and I've found the rulebook. I see a lot of specs. Justl don't see a "list".
06-20-2014, 05:33 AM
#7657
06-20-2014, 06:38 AM
#7658
Tech Addict
My bad. I assumed it would be sub-heading under RULES.
Thanks.
Thanks.
06-20-2014, 09:31 AM
#7660
That's funny. The PDF rules say that they were updated on 6/6/2013. The PDF rules are definitely very different than the web page rules. The Protoform '71 Pontiac Firebird Trans-Am body is not listed in the PDF. Also the PDF rules does not mention the approval of ROAR 'blinky' ESC's.
Last edited by wwddww34; 06-20-2014 at 10:02 AM.
06-21-2014, 03:30 AM
#7663
trust me, it works - no matter which chassis you run
you might, however, need some flat shims (or thicker wheel hexes) in order to really fill the wheel wells on some bodies - but on 95% of the bodies, the wheels and a 190mm chassis work
06-21-2014, 04:04 AM
#7664
all front vintage rims are 26mm wide, 0mm offset and all rears are 31mm wide, +3 offset.
trust me, it works - no matter which chassis you run you might, however, need some flat shims (or thicker wheel hexes) in order to really fill the wheel wells on some bodies - but on 95% of the bodies, the wheels and a 190mm chassis work
trust me, it works - no matter which chassis you run
you might, however, need some flat shims (or thicker wheel hexes) in order to really fill the wheel wells on some bodies - but on 95% of the bodies, the wheels and a 190mm chassis work
06-21-2014, 08:04 AM
#7665
Unless you are running the Pegasus Camaro. That thing is awful big. VTA chassis running that thing looks like a toddler wearing daddy's shirt.
The HPI vintage wheels and tires were made to go with the HPI vintage bodies on a 190mm chassis. Stance and the rear being wider, it's all intentional. It's a look that HPI was going for. Then we started racing that stuff.
The Protoform VTA shells are blessings from God and Dale and were made for us to use in this class. I think the McAllister shells on the USVTA list were also made specifically for us. I think the Parma Pegasus and whatever else is on the list is stuff that just happens to work.
But I could be wrong.
The HPI vintage wheels and tires were made to go with the HPI vintage bodies on a 190mm chassis. Stance and the rear being wider, it's all intentional. It's a look that HPI was going for. Then we started racing that stuff.
The Protoform VTA shells are blessings from God and Dale and were made for us to use in this class. I think the McAllister shells on the USVTA list were also made specifically for us. I think the Parma Pegasus and whatever else is on the list is stuff that just happens to work.
But I could be wrong.
Last edited by snoopyrc; 06-21-2014 at 08:16 AM.