Search found 568 matches

by jpetillo
August 16th, 2016, 9:13 pm
Forum: Pertinent Info about FV Rules or events.
Topic: July 2016 Minutes
Replies: 3
Views: 11059

Re: July 2016 Minutes

I first have to say thank you to those in the outgoing FV Committee who elected to include me several years ago as a member. It’s been a great experience. As Bruce said about the founding committee, the outgoing committee was composed of folks all extremely dedicated to the class and its survival. T...
by jpetillo
August 14th, 2016, 11:17 am
Forum: Pertinent Info about FV Rules or events.
Topic: New OFFICIAL FV AdHoc Committee Selected
Replies: 3
Views: 8657

Re: New OFFICIAL FV AdHoc Committee Selected

Bruce, thanks for the post. I agree with Bruce. It would be good for the FV folks to interact with the new Official FV Committee more than in the past. The forums are a good place to discuss things, but the few folks who are kind enough to post hardly represent the interests of the FV community. Alt...
by jpetillo
August 13th, 2016, 4:29 pm
Forum: Tech Tips, Rules, and Safety
Topic: FV Intake Manifold Rules Clarification July 2016
Replies: 23
Views: 175052

Re: FV Intake Manifold Rules Clarification July 2016

That idea has been brought up before. If we just measured internal volume then we could make the pipes shorter, and widen the pipes to meet the volume spec. Doing that would most likely flow more air - and certainly start another round of R&D as Brian M. suggested. John
by jpetillo
July 17th, 2016, 9:32 pm
Forum: Event News, Info, and Results
Topic: NEFV Championship Rounds 7 & 8 (Thompson)
Replies: 4
Views: 3398

Re: NEFV Championship Rounds 7 & 8 (Thompson)

Now up to 18 FV & 11 Challenge Cup...
by jpetillo
July 17th, 2016, 1:14 am
Forum: Event News, Info, and Results
Topic: NEFV Championship Rounds 7 & 8 (Thompson)
Replies: 4
Views: 3398

Re: NEFV Championship Rounds 7 & 8 (Thompson)

Nick, thanks for posting this. Both the NEFV group (NorthEast Formula Vee - mostly the SCCA NER Region) and the Challenge Cup group put a huge effort into promoting each of their series, and are each perhaps the largest groups of their kind in the country. The two groups combined at Thompson is crea...
by jpetillo
July 2nd, 2016, 11:57 pm
Forum: Event News, Info, and Results
Topic: Rounds 5 and 6 of the NEFV Championship (July Sprints)
Replies: 2
Views: 2507

Re: Rounds 5 and 6 of the NEFV Championship (July Sprints)

I see 22 Vees signed up now, and only five non-vees. You guys are going to have a great time. Wish I could be there.
by jpetillo
May 31st, 2016, 11:27 pm
Forum: Event News, Info, and Results
Topic: FV Promotional Video at LA Film Festival
Replies: 0
Views: 2575

FV Promotional Video at LA Film Festival

As many of you probably know who read the FV Ad Hoc Committee monthly meeting minutes, the FV Promotional Video that was produced was submitted to several film festivals. So far four film festivals have selected the film to be screened (showcased at the festival). The “Dances with Films” Festival in...
by jpetillo
January 31st, 2016, 10:45 pm
Forum: Event News, Info, and Results
Topic: The Racer's Expo 2016
Replies: 6
Views: 3732

Re: The Racer's Expo 2016

I've posted this in several venues - but people and organizations who sponsor and help us deserve the attention. I’d like to add a few words of thanks… First, we thank the New England Region (NER) of the SCCA for hosting us at this event. Merging our two booths was excellent. In particular I’d like ...
by jpetillo
January 31st, 2016, 10:41 pm
Forum: Event News, Info, and Results
Topic: The Racer's Expo 2016
Replies: 6
Views: 3732

Re: The Racer's Expo 2016

About Uncle Sam. They were inflating him in the room, but the ceiling was about 10' too low. I caught him in that picture as he was being deflated. It wasn't catching him at his peak! The funny thing is the guy who owned Uncle Sam said he could only find a source for and Uncle Sam balloon from China.
by jpetillo
January 31st, 2016, 10:18 am
Forum: Event News, Info, and Results
Topic: The Racer's Expo 2016
Replies: 6
Views: 3732

Re: The Racer's Expo 2016

Nick, thanks for posting those pictures. Kevin's car definitely attracted folks to our booth. It was a great turnout.
by jpetillo
January 28th, 2016, 10:54 am
Forum: Event News, Info, and Results
Topic: The Racer's Expo 2016
Replies: 6
Views: 3732

Re: The Racer's Expo 2016

Everyone, we're all set for the show tomorrow and Saturday. Please come by and chat. The show is a great experience, and there are a lot of other booths to visit other than our own. It is truly a racer's show with many vendors. http://www.theracersexpo.com/ Here's the schedule. Friday: Setup 9:00 AM...
by jpetillo
December 3rd, 2015, 9:37 am
Forum: General Discussion
Topic: Login Issues
Replies: 9
Views: 7399

Re: Login Issues

bobs66440 wrote:Yes, thanks! The login issue appears to be a Safari browser on Mac thing. Other browsers work fine.
Bob's problem is not unique. This is the same problem I have when using Safari, so I have to use another browser as well for this site.
by jpetillo
November 29th, 2015, 2:37 pm
Forum: General Discussion
Topic: Returning to Racing
Replies: 8
Views: 5144

Re: Returning to Racing

Bob,

You have several options in the Northeast as you can see from the above posts - all excellent options. Also check out http://nefv.org for SCCA Formula Vee in the Northeast. There is a contacts page to chat with folks in your area.

John
by jpetillo
November 6th, 2015, 9:53 am
Forum: Tech Tips, Rules, and Safety
Topic: Leading arm attachment
Replies: 60
Views: 118422

Re: Leading arm attachment

I guess I am assuming that some weight is transferred across via the spring. If there is an upward push on the outside tire doesn't that translate to a downward push on the inside tire. The spring is pushing on something to be resist compression. I go along with Brian H. on this, yes, definitely, s...
by jpetillo
November 6th, 2015, 1:17 am
Forum: Tech Tips, Rules, and Safety
Topic: Leading arm attachment
Replies: 60
Views: 118422

Re: Leading arm attachment

The spring has nothing to do with weight transfer. In zero roll resistance with our standard rear setup - yes. Chassis roll is just an indication of weight transfer but is not necessary for there to be weight transfer. Agreed. A gokart has weight transfer with no body roll for example. But, this is...
by jpetillo
November 6th, 2015, 1:00 am
Forum: Tech Tips, Rules, and Safety
Topic: Leading arm attachment
Replies: 60
Views: 118422

Re: Leading arm attachment

1) Simply stated the rear spring of zero roll rear suspension is only maintaining the rear ride height. 2) A) There is about 110 lb front and 160 lbs rear weight transfer on the average FV in a 1g corner. Zero roll resistance does not mean zero weight transfer. B) The front FV sway bar is a camber ...
by jpetillo
November 5th, 2015, 1:20 am
Forum: Tech Tips, Rules, and Safety
Topic: Leading arm attachment
Replies: 60
Views: 118422

Re: Leading arm attachment

Brian, I agree with everything you said, except "the higher the spring rate [for a monoshock], the more the transfer" In a zero roll resistance monoshock like we run in the back, the rear spring rate does not affect the rear weight transfer. That is why with this zero roll resistance monos...
by jpetillo
November 3rd, 2015, 10:18 pm
Forum: Tech Tips, Rules, and Safety
Topic: Leading arm attachment
Replies: 60
Views: 118422

Re: Leading arm attachment

I'm not sure it's an attempt to transfer weight - I would think the opposite. But, it depends on what you mean. So, let me say it differently, the zero roll resistance is an attempt to transfer the minimum weight possible, and if you can keep the tires at the optimum camber, you maximize grip. As yo...
by jpetillo
November 3rd, 2015, 12:34 am
Forum: Tech Tips, Rules, and Safety
Topic: Leading arm attachment
Replies: 60
Views: 118422

Re: Leading arm attachment

2) Rear suspension jacking happens in all FV's... all cars using a swing arm suspension for that matter. That is not to say that the amount of jacking can not be controlled or limited. I would say that the CoG has nothing to do with jacking. I agree with that - CoG has nothing (or little) to do wit...
by jpetillo
November 1st, 2015, 12:39 am
Forum: Tech Tips, Rules, and Safety
Topic: Leading arm attachment
Replies: 60
Views: 118422

Re: Leading arm attachment

Zero roll resistance in the rear puts the anti-roll duties to the front tires, which helps balance the front to rear grip. But, with the swing axle rear end and the standard single shock design, it helps control the rear tire camber better during cornering.
by jpetillo
October 30th, 2015, 11:40 pm
Forum: Tech Tips, Rules, and Safety
Topic: Leading arm attachment
Replies: 60
Views: 118422

Re: Leading arm attachment

I like this discussion. Much of the reason to find the right motion ratio dependents on what your shock tolerates. You want the shock to move enough that its function is not dominated by stiction for small wheel movements where you want the shock to work for you, but on the other extreme not so much...
by jpetillo
October 16th, 2015, 1:14 am
Forum: Tech Tips, Rules, and Safety
Topic: Leading arm attachment
Replies: 60
Views: 118422

Re: Leading arm attachment

With regards to one of Jim's original questions .. what is the purpose of the triangular structure that mounts at the tail with the heim joint? I believe its purpose is to control the fore/aft forces on the shock bell cranks that mount to the chassis. The pivots at the chassis have a SEVERE fore/af...
by jpetillo
October 5th, 2015, 10:20 pm
Forum: Tech Tips, Rules, and Safety
Topic: Leading arm attachment
Replies: 60
Views: 118422

Re: Leading arm attachment

Not so nice..... Not a well thought out modification 2) You do not want to add side force to the already highly loaded outside wheel. It only reduces the freedom of the suspension to move while in the turn. This modification does not provide a contracting force (while in the corner) normally seem b...
by jpetillo
October 4th, 2015, 9:45 am
Forum: Tech Tips, Rules, and Safety
Topic: Leading arm attachment
Replies: 60
Views: 118422

Re: Leading arm attachment

I pretty much agree with Brian's response. I see two benefits in that location point on the rear axle. The first as Brian mentioned is that the side force on the axle can be reduced. This happens any time you move the attachment point out while keeping the suspension rod at the same angle, or keepin...
by jpetillo
September 18th, 2015, 9:30 pm
Forum: Event News, Info, and Results
Topic: Runoffs 2015
Replies: 9
Views: 10285

Re: Runoffs 2015

Thanks for keeping us informed. Keep it up if you can - we appreciate it!