.370 vs. .400 tree - nationals vs. division 2?
 

What software is used to activate the .400 (.370) Pro tree in Super classes at NHRA nationals, and is it the same used at all Division 2 events? I'd like to know if my hits at the first division 2 Super Comp races will be valid for the Gatornationals, or if I can assume I'll be .030 if I'm .000 at the Lucas Oil races. Or does it vary by track?

Gainesville claims they use the same national event program all the time, but my S/ST "rollout" was slower at the actual Lucas Oil races than it was at the Test and Tunes in the weeks prior on the "same" .500 Pro tree. I'd like to know the deal in Super Comp, since I have less time in the box to dump.

Re: .370 vs. .400 tree - nationals vs. division 2?
 

I dont know the answer (although I think its something in the software)...but what I do is, first time shot I empty the box and go shallow as I can, then try to kill the tree...if fact sometimes (at divisionals) I do the same for the second shot, and then determine how much to put back in...My car can usually go red on a .370 (after alot of work) so if I'm red I'm happy...

In D1 all the Nats and Div races are .370....

Re: .370 vs. .400 tree - nationals vs. division 2?
 

ok,since this is my first year...are you tellin me that at divisionals the tree is actually a .370 and at nationals its a .400 for s/c this just sounds weird

Re: .370 vs. .400 tree - nationals vs. division 2?
 

All can say is Div 1 for Opens, Nationals and pts races, the tree is .470 for s/st and .370 for s/g & s/c. I specifically asked the D2 Director at Bradenton last year what tree they were running and he said it was a. 400 & .500, He didnt instill much confidence with his response, never heard that D1 did that, I figured the Division Directors at least talk once a year to each other.

Re: .370 vs. .400 tree - nationals vs. division 2?
 

make that f**cker .350 tree then we will see who the hitters are.

asta

Re: .370 vs. .400 tree - nationals vs. division 2?
 

That wouldnt help me at all.... I cant hit the tree if you gave me all day...LOL..

Re: .370 vs. .400 tree - nationals vs. division 2?
 

Mr chillik it is .370 at natls because of pro stock bikes, divisionals are generaly .400 but like most things in life track to track in divisions it can change. Thats why you kinda gotta ask the locals or finger it out you self

Re: .370 vs. .400 tree - nationals vs. division 2?
 

The same guy sets up all the National events and I did talk to him at the Topeka KS race in 2007.
He indicated it was a .370 for all the National events.
Other events are up to the person setting it up. Could be anything.
I like the idea of instant green. No Red Lights.
Maybe thats because I have a lot of red light losses.
It seems if you are not .00 something or very close to it anymore you may be toast.
My 2 Cents

Re: .370 vs. .400 tree - nationals vs. division 2?
 

John, If they did that, Ig would still have .040 in the box! .....I miss the incandescents. ...They made you work for your light.....Is your avatar the Z you bought? ....Tom

Re: .370 vs. .400 tree - nationals vs. division 2?
 

Gary-
I remember that conversation at Bradenton last year vividly. Bill looked at us like we were from another planet and told us we crazy to think that's the way it is. Uh, OK there Bill.... C'mon up, the water's FINE!
See you soon....
-Don

Re: .370 vs. .400 tree - nationals vs. division 2?
 

Well, most of the time "if I can't say anything nice, I don't say anything at all". Let me just say there's a reason I'm posting here instead of just calling my division director about this. The answers to Gary's questions don't surprise me.

Bottom line, if I'm test/tuning on a .400 tree now I need to get to work for the Lucas races. If it turns out I'm set up OK for divisionals I still don't want to get the .030 surprise on my first time shot at the Gators. I think I might just call Jeff Foster and see what he knows about Div. 2 tracks.

Re: .370 vs. .400 tree - nationals vs. division 2?
 

Being from Div 2 myself, I can tell you this much. Not all the Div 2 tracks use the exact same system and softwear. I know R.T's varry on a .400 tree from Bradenton to Orlando, and are still a little differant to Gainsville. As for the National event thing, I have not raced at a National for over 15 years so I cant answer that. But even at the Divisionals it may varry from track to track by a few thou.

I know Bradenton spent a ton of $$$ putting in a new system a year or two ago, and have all the kinks worked out of it now. Gainsville is using the identical system that NHRA takes to all the National events , being NHRA owned and all. not sure what system Orlando is using. and SGMP is also on the latest and gratest system so should be close to the same as Bradentons.

Re: .370 vs. .400 tree - nationals vs. division 2?
 

Just to let you know that in D1 , obviously they use the same system at all races but if you use the same delay at say Atco & then go to Cecil County for a D1 race, you'll have to unload your box due to the long rollout at cecil, nothing dif with the timing system just the track dictates less delay. All things are not equal or as they appear.

Re: .370 vs. .400 tree - nationals vs. division 2?
 

Def agree with Gary..I dont think tracks vary too much on the software, but the rollout, the exact position of the tree itself and the sun, track conditions, all that factors into reaction time...I know for myself I'm quick at Atco and Cecil, horrible at Maple Grove, average at Island and Leb Valley...I went to Hagerstown last year and was quick...
So I think its more than one thing, its a combo...

Re: .370 vs. .400 tree - nationals vs. division 2?
 

It's when the rollout or beam set up changes day to day at the same race is when there's an issue. I try not to compare other weekends even at the same track and just try to stay consistent in a weekend.

Kelli
1236 S/ST
1836 S/G

Re: .370 vs. .400 tree - nationals vs. division 2?
 

Gary is right, he told me the same story. Bill Holt just looked at him like he had a chicken on his shoulder. Atlanta nat's I carry .035 to .040, go to div and carry .065 to .070. Good luck.
Griggs

Re: .370 vs. .400 tree - nationals vs. division 2?
 

As far as I've been told (and we did a story on this in the March '09 issue of Drag Racing Action - http://www.dragracingaction.com), all the divisions have now gone to what is termed as a .370 tree. Although as Compulink puts it, they consider it more of a "compensation" than a .370 tree. Either way you skin it though, the fact is that S/ST is in a .470, while Gas and Comp is .370. It was up to each division to make the choice and I know that D1 only changed to the .370 a couple of years ago, while everyone else was already using it. The change came about in '03 after the first couple of national events where the PSM and PS cars were redlighting on the then standard .400 tree. Most tracks also have standardized their rollout but it woill vary from track to track. However, changing the rollout by 1/2" or so (which can happen from track to track) might change the amount of delay but not by .030.

Re: .370 vs. .400 tree - nationals vs. division 2?
 

The biggest difference that I have seen from the Nationals and Divisionals is the color of the bulbs that they use. The ones that the Nationals use have an orange tint where most Divisionals use yellow bulbs. I have found that I don't react as well to the bulbs with the orange tint. There are some divisional tracks that also use the orange bulbs, which is part of the reason in the inconsistencys at different tracks
Chuck

Re: .370 vs. .400 tree - nationals vs. division 2?
 

Thanks everyone, I appreciate the information. Of course I won't really know what to do until I start reading time slips - but one should always plan ahead regarding trans., electronics, and weight changes. I'll see many of you at the races.