Nasa TT/TD disccussions

[enivid]

Originally Posted by ka-t_240

How will that impact you classing/points wise? And where did you loose the 150lbs from?

I have FI. I was in TTB but now will be in TT3. I just removed some of the interior, deleted the AC and put in a lighter battery.

[zdr93523]

Originally Posted by ja1217

Getting your comp weight down to 2800 isn't very hard. That's about where I was last year (my comp weight was 2885 and I was running 70lbs. of ballast and I weight in at around 210-215lbs with all my race gear on, leaving my car around 2600lbs with about 1/2 tank of gas).

I was able to get my car (not including me) down to around 2600lbs while leaving the interior completely stock. My lightweight mods include:

Removing trunk junk - about 40lbs.
Lighter wheels (Enkei RPF-1) - about 16lbs
Essex Sprint BBK - about 20lbs.
Driveshaft Shop Carbon Fiber DS - around 13lbs.
ACT Pro-lite Clutch and flywheel - around 12 lbs.
Shorai 5lbs. battery - around 20lbs.

So that's about 120lbs right there from the car and you can get another 20 pretty easily by moving to a lighter cat back from the stock one.

When you want to remove even more than that, take a look at @Anthony build thread:

http://www.ft86club.com/forums/showthread.php?t=42284

Did you actually weigh your car? I'm not saying it is impossible, but I have a very hard time believing the car dropped to 2600 lbs without gutting the car.

[zdr93523]

Originally Posted by ka-t_240

How will that impact you classing/points wise? And where did you loose the 150lbs from?

I compete with @enivid and we have similar setups. I will be weighing mine in the coming weeks and will see if I need to add ballast or not.

[ja1217]

Originally Posted by zdr93523

Did you actually weigh your car? I'm not saying it is impossible, but I have a very hard time believing the car dropped to 2600 lbs without gutting the car.

My car gets weighed at pretty much every event. Last year at nationals I got weighed after every session. Car always came in around 2890-2900 with about 1/2 a tank of gas. If the car got much lower than 1/2 a tank I would have been under my weight limit of 2885.

So, 2900 - 70lbs of ballast - 215 for driver and gear = 2615lbs for the car at around 1/2 a tank of gas.

You can see in my videos that I still have the full stock interior (well, I guess you can't see the back, but its all there too).

[ame="https://www.youtube.com/watch?v=IBAxIFB4Gww"]Fastest Lap @ East Coast Championships - 2:12.605 - YouTube[/ame]

[zdr93523]

Originally Posted by ja1217

My car gets weighed at pretty much every event. Last year at nationals I got weighed after every session. Car always came in around 2890-2900 with about 1/2 a tank of gas. If the car got much lower than 1/2 a tank I would have been under my weight limit of 2885.

So, 2900 - 70lbs of ballast - 215 for driver and gear = 2615lbs for the car at around 1/2 a tank of gas.

You can see in my videos that I still have the full stock interior (well, I guess you can't see the back, but its all there too).

Nice! I guess I forget how much the supercharger kit, intercooler, extra oil coolers, larger radiator, and harness bar weigh. I was at 2950 with 1/2 tank of gas, I weigh 215lbs, and I do have the JRSC, lightweight battery, AP Racing Sprint BBK, aluminum driveshaft, full exhaust system, and aero with full interior.

This year will be very different though and I may need ballast to hit my power to weight limit for TT3.

[Deep Six]

Originally Posted by zdr93523

Did you actually weigh your car? I'm not saying it is impossible, but I have a very hard time believing the car dropped to 2600 lbs without gutting the car.

Mine was weighed at two different tracks with two different organizers at 2610 with similiar mods

[zdr93523]

Originally Posted by Deep Six

Mine was weighed at two different tracks with two different organizers at 2610 with similiar mods

Cool! I'll be able to post a weight in the next few weeks when I get around to corner balancing the car.

[crazyfrenchbiker]

Originally Posted by ka-t_240

My name is Faber - 2013 BRZ Limited - NASA Central.


Car currently has too many points, would be in TTC.... debating how much money or time I want to spend to make it back to TTD before this season. This will be my first NASA season.

Plans for Spring:
4.56 Final Drive swap
Maybe 4 Point Roll bar w/ seat/harness/hans
Maybe 17x8 w/ R Comps


Current Parts Combo:
(Finish while I am not at work)

In Central it seems like you would have more fun shooting for TTB, there is a much bigger competiton range.

I'll be competing in NASA Central TT3 (pending new dyno classing)

[zdr93523]

Originally Posted by ka-t_240

My name is Faber - 2013 BRZ Limited - NASA Central.


Car currently has too many points, would be in TTC.... debating how much money or time I want to spend to make it back to TTD before this season. This will be my first NASA season.

Plans for Spring:
4.56 Final Drive swap
Maybe 4 Point Roll bar w/ seat/harness/hans
Maybe 17x8 w/ R Comps


Current Parts Combo:
(Finish while I am not at work)

Unless you are on a very low speed track, I think you will find that the Final Drive will make zero difference. The exception to that is if you are constantly finding yourself in between gears or feel that the gearing is too tall but I think the cost will be far more than the benefit.

[ka-t_240]

Originally Posted by zdr93523

Unless you are on a very low speed track, I think you will find that the Final Drive will make zero difference. The exception to that is if you are constantly finding yourself in between gears or feel that the gearing is too tall but I think the cost will be far more than the benefit.

I spend way to much time in the 6500-7000rpm range in 3rd at the two tracks I use the most. Hoping the FD will make 4th more inviting. If I can find my self more comfortable in 4th thru most corners it will cut out a lot of shifting.

[ka-t_240]

Originally Posted by crazyfrenchbiker

In Central it seems like you would have more fun shooting for TTB, there is a much bigger competiton range.

I'll be competing in NASA Central TT3 (pending new dyno classing)

I know we have 2 FRS from MN that will be in TTD this season, and then my BRZ. If I play in TTB, I think ill be way off pace to ever get any contingencies or be competitive with out spending a lot of money, can a NA car compete in B?

The new HP rules for TT3 look to have distinct advantages for some platforms. I know my buddy is dropping from TT2 to TT3 in his Civic cause of them, he is very excited.

[Uplink]

Originally Posted by ka-t_240

My name is Faber - 2013 BRZ Limited - NASA Central.


Car currently has too many points, would be in TTC.... debating how much money or time I want to spend to make it back to TTD before this season. This will be my first NASA season.

Plans for Spring:
4.56 Final Drive swap
Maybe 4 Point Roll bar w/ seat/harness/hans
Maybe 17x8 w/ R Comps

Depending on the tracks you run, FD might really help. On Thompson and NJMP - Thunderbolt with the stock gearing I find there's a few spots where you either have to back off a little and hold 7krpm for more than is comfortable or shift up to 4th for not much distance then back down for braking. Both are not ideal for running the fastest times.

[Uplink]

Originally Posted by zdr93523

Did you actually weigh your car? I'm not saying it is impossible, but I have a very hard time believing the car dropped to 2600 lbs without gutting the car.

Honestly, it's VERY easy. Mine weighs in at 2643.38lbs with a full tank of gas and I still have basically full interior (Shrader Rear Seat Delete Kit saved 19.375lbs) and my 245 Direzza's on 17x8 RPF1's actually added .8lbs. It's my daily and most people don't know there's anything not stock about it other than a bit of exhaust volume. Non-twin people have actually asked if it came from the factory with only 2 seats.

Remove spare tire/tools/manual, lightweight pulleys, rear seat delete, inlet tube & filter swap w/ noise tube delete, aluminum driveshaft (won't do CF, blew 2 on my Vette), lightweight battery, Perrin OP, HKS FP and Spec-L catback, remove rear bumper beam.

Can still replace the front beam with Beatrush, AP Sprint, HKS Header, and SPEC flywheel/clutch and shed an estimated 42.4lbs more to bring it down to 2,601. Remember that's on a full tank of gas (@6.3lbs/gal). Leave out 4gal and you're below 2,580. YMMV.

@Anthony has put together an exceptional thread on component weights here. Pick and choose what you're willing to lose and what your competition ruleset allows.

[Uplink]

Originally Posted by zdr93523

Nice! I guess I forget how much the supercharger kit, intercooler, extra oil coolers, larger radiator, and harness bar weigh. I was at 2950 with 1/2 tank of gas, I weigh 215lbs, and I do have the JRSC, lightweight battery, AP Racing Sprint BBK, aluminum driveshaft, full exhaust system, and aero with full interior.

This year will be very different though and I may need ballast to hit my power to weight limit for TT3.

Yep, that'll do it. Not only the larger oil cooler and radiator but the extra fluid you're adding too. I think even the Edelbrock SC kit adds in the neighborhood of 80lbs with all associated hardware and that has less 'plumbing'.