Weight Removal

[Cincy]

I put together a list of parts that can easily be removed and how much they weigh. This while still retaining all the comfort items.

counterweight - 35lb
Smaller battery -20-25lb
Lighter seats - up to 80lbs
urathane side skirts - 10-15lbs
remover sai, n115, n249, intake box, covers, etc -4-5lbs (with plates and bolts)
crossover pipe - 3-4lbs
lightweight 17" wheels - 8-12lb/wheel
2 piece rotors - ~10lbs/side front ~6lbs rear
aluminium calipers - 3-6lbs/side
lightweight turboback - 15-20lbs
lwfw - 8-13lbs
remove rear seatbacks - 15-20lbs
remove spare for fix-a-flat - 30lbs
----------------------------------
min - 290lbs
max - 339lbs

FWD - 2910 to 2620-2571
180q - 3131 to 2841-2892
225 - 3208 to 2918-2869

There is more, but thats a good deal right there

[WishIWasRWD]

Nice, 300 lbs on our car could be good for a 1/2 second.

[theTTkid]

would 300lbs really take of .5 second? idk, maybe a stretch?

my weight removal comes from my whoping 116lb body weight :P ha

[Cincy]

Every 100lbs is suppose to take off .1 sec in the 1/4. It also helps greatly with mpg which is why im down well over 100lbs already.

[theTTkid]

the counterweight is in the back drivers side correct? gotta take off the rear bumper or something like that?

[Cincy]

Yes and Yes. It counters the gas tank. You have to remove the bumper and the crash bar to remove it. The only hard part is getting to the bolts that attach to the rear fender.

[myslow1]

Yes and Yes. It counters the gas tank. You have to remove the bumper and the crash bar to remove it. The only hard part is getting to the bolts that attach to the rear fender.

how does it counter the gas tank? is it on the shallow side of the tank?

[Cincy]

I think it helps the FWD more than the AWD version since the FWD has the gas tank mainly on the passanger side where the AWD has the split tank which seems to split more evenly over the driveshaft. Mine has been gone for months and havent noticed any handling changes. Just wish there was a clean way to install the full battery in that general location

[Irish*TT*]

Isn it every 50lb's taken out would be like adding 1hp.? Or is it 10hp? So if you took 300lb's out you would gain 60hp-or 6hp. One of em. But it doesn't so up on dyno's
You don't gain hp. Its LIKE you gain hp.

[Cincy]

It changes the lbs/hp. It has the same effect, but i would this term over saying you gain Xhp/lb dropped. Its going to change % depending on the power you have currently and the weight of the car.

Exp,

(A) 120hp @ 2500lb vs (B) 120hp @ 3000lb

A = 20.83lbs/hp
B = 25lbs/hp

both lose 300lbs

A = 18.33lbs/hp
B = 22.5lb/hp

This way only changes 2.5lbs/hp which will again change with different hp and weight

[myslow1]

I think it helps the FWD more than the AWD version since the FWD has the gas tank mainly on the passanger side where the AWD has the split tank which seems to split more evenly over the driveshaft. Mine has been gone for months and havent noticed any handling changes. Just wish there was a clean way to install the full battery in that general location

makes sense.
i dont think i would want the battery there though... I could see it for weight distribution but if your battery ever died or you had problems you would have to remove everything to get to it. Unless there was a way you could get to or see the terminals i wouldn't do it lol.

[theTTkid]

whats so bad about the battery being in the engine bay?

[Irish*TT*]

IMO. I don't like it cuz I think you could loose cranking power , unless u put a better ignition box. Reson on thinking loosing crank power(power to the starter) is its such a long power wire to the starter.

[HowdyTT]

whats so bad about the battery being in the engine bay?

Having the battery in the back will improve weight distribution and cornering capabilities. A Novice like myself would probably not notice the difference though :(

[Cincy]

makes sense.
i dont think i would want the battery there though... I could see it for weight distribution but if your battery ever died or you had problems you would have to remove everything to get to it. Unless there was a way you could get to or see the terminals i wouldn't do it lol.

Very true. You couldnt open the hatch. There is a release under the cup holders (so im told, havent looked), but that would be a hassle.

whats so bad about the battery being in the engine bay?

Nothing really, just causes some space issues depending on what you want to run. I just brought it up since it would keep the extra weight on the drivers rear while still losing 35lbs

IMO. I don't like it cuz I think you could loose cranking power , unless u put a better ignition box. Reson on thinking loosing crank power(power to the starter) is its such a long power wire to the starter.

Not really. The length of the wires would make it lose some power, but not enough to really change the cranking power. You would be worse off with a lightweight battery with less CCA than adding 8ft of cable from the starter to the battery. BMW and many other cars come with the battery in the trunk already, but they atleast have a key slot to get into the trunk

Having the battery in the back will improve weight distribution and cornering capabilities. A Novice like myself would probably not notice the difference though :(

Removing 40lb from the front and installing it in the rear would help with the split, but probably not enough to get that much closer to 50/50.

[taifighter]

I dropped about 65 lbs total by removing the counter weight & rear seats and adding in my carpeted rear platform & strut tower brace

[taifighter]

here is a quick pic of both the weight and my version of rear seat delete with a "strut tower-less" strut tower brace. I haven't posted this pic on the other forums so you guys are the first to see it. Forgive the dirtiness (sp?) back there, she's usually spotless

http://i498.photobucket.com/albums/rr349/taifighter/my%20TT/100_1426.jpg

http://i498.photobucket.com/albums/rr349/taifighter/my%20TT/100_1427.jpg

[l88m22vette]

Is the delete shelf simply plywood with carpet?

[taifighter]

Yeah, 1/4 in OSB covered with speaker box thin carpet. I went with that because it's light but strong enough to hold groceries or a golf bag or a snowboard (but not much more). It's hinged so where the rear seat used to be it can flip up for a bit of hidden storage. You can see more in depth photos in my profile on AudiForums

[l88m22vette]

Checked out the pics, its really nice. Good work, I'm going to copy you (it also looks nice and cheap :D)

[taifighter]

whatever you do, don't make it better than mine ;) no, seriously, it took a lot of test fitting so be careful when you pull it out of the hatch cuz you may mar your paint like I did >: (

[exTTreme]

Very true. You couldnt open the hatch. There is a release under the cup holders (so im told, havent looked)
The manual release is pretty easy to get to just take out the little rubber inserts and the two quick turn screws, I had to use it a few times when i went swimming with my key :)

[Irish*TT*]

i just thought if someones going to go threw the work of putting the battery in the hatch> maybe just run a possitive and negitive under the rear bumper so you can jump it easyer kinda what race cars do.... but put it under the car but yet have it easy to get to

[taifighter]

also, if you run the battery to the back, most tracks will need a cut off switch that is externally mounted. (keep in mind that means EVERYBODY will have access to it, a flick of the switch can be annoying if you have settings that will be lost from losing battery connectivity)

[Irish*TT*]

also, if you run the battery to the back, most tracks will need a cut off switch that is externally mounted. (keep in mind that means EVERYBODY will have access to it, a flick of the switch can be annoying if you have settings that will be lost from losing battery connectivity)

* I believe they make a lock for the kill switches. (Track unlocked/ street locked) also some hide the kill switch with there license plate on the streets

[taifighter]

There's ways to get around anything if you try hard enough. For instance, on my old DSM some jack@ss flicked my switch and I lost all my tuning settings. I was running 950cc injectors. I was 20 miles away from home with no laptop or cable to connect to my ECU. The slow drive home sucked but I had no other option. So I did the ghetto fix and unscrewed the lever from the switch, making it impossible to flick unless you had a pair of channel locks. Worked great!

[Murderface]

I'd relocate the battery to the trunk just for looks/space. You could easily put a water meth pump and reservoir in its place...not to mention the stock box is rickety and looks like crap with all the wires coming off of it.

BMW and many other cars come with the battery in the trunk already, but they atleast have a key slot to get into the trunk

Not to mention the TT Quattro Sport...it comes with the battery in the trunk ;) They're the ones that have the painted roof, recaros and rear seat delete straight from the factory along with a few styling things.

[Cincy]

http://i498.photobucket.com/albums/rr349/taifighter/my%20TT/100_1427.jpg

So since yours is flat, can you fit a full size battery underneith with the spare still intack? I just replaced my battery a couple months ago and not really wanting to drop another $150 or so on a small battery right now and with my luck, ill get a flat right after i remove the spare :(

[l88m22vette]

Anyone have any info/pics of moving or relocating the wire birds nest on top of the battery? Every battery reloc pic I've seen has the whole assembly just dangling in the engine bay, and if I'm going to move the battery I want to COMPLETELY clear out that space.

[Cincy]

Just tuck that against the fender or out of the way and then you just have to lengthen the power line and then make a new ground to somewhere in the rear. The engine bay would look so much better with all the extra crap removed and needing the covers to hide everything

[taifighter]

Cincy, I don't roll around with my spare and never plan to relocate my battery so I didn't factor that in when I built my platform. It basically sits right on top of the spare wheel well and provides little room if any for something small like a sub and amp, butdef not a secured battery box that would pass tech inspection. The inspector would have to see it and that would mean removing the platform which is a big PITA

[Irish*TT*]

This is kinda off topic. But not really! But the new GTR(skyline) has hydrogen fill tires to reduce weight! .. I mean.. Really? Come on.

[taifighter]

you can get that at a lot of wheel/tire specialists if you want to go that route

but I think it's expensive

[W3rkd]

It's not (19.99/5 per tire) I used to sell it. I have the free hookup for life now. lol.

[Irish*TT*]

It's not (19.99/5 per tire) I used to sell it. I have the free hookup for life now. lol.



* is it really that big of a difference??

[l88m22vette]

They are nitrogen-filled, not hydrogen...that'd be pretty dangerous lol

The point is that nitrogen is more stable and therefore holds tire pressure more consistently

[exTTreme]

my tires are nitrogen filled it prevents moisture from forming inside the tire and also does not expand as fast from heat not sure how effective it would be for weight reduction and i fill mine for free small perk of working on aircraft :)

[Irish*TT*]

Ill just cave man it and use air!! ;-)

[Skitzafit]

We use nitrogen in our helicopter tires because it doesnt expand or contract as temps change more than just normal air. I think this is the reason for it in car tires also not for weight reduction. I only see this as need if you track your car in a comptitive nature.

[Tmoney]

Cincy, this place is bangin, i like the weight removal board. Never got to really think about all that stuff. What brought about his forum, dont you love us down in AF??

[Cincy]

Most of the people there are cool, but there are things i thinked it lacked and were annoying. So adam and i started this one.

[Tmoney]

You guys did a great job. I love the look you all have going on, fierce like a tiger hahah.

[NoDoz]

This is a great thread. I did half of the list yesterday and went from 25 to 33MPG!!.

[Murderface]

They are nitrogen-filled, not hydrogen...that'd be pretty dangerous lol

mmm I'd pay somebody to see them burn off hydrogen filled tires till they blow LOL

[frostyflax17]

http://www.tt-forum.co.uk/forum/viewtopic.php?f=2&t=125044

hey cincy, wouldn't it be a good idea to make a master weight removal sticky and the DIY's to do them?

save some questions.

[Cincy]

Just thought i'd be nice today and share a little secret with everyone. Same batteries as Braille but for far less, A LOT LESS!

11.5lb battery (http://www.bigcrank.com/motorcyclebatteries.mv?p=BIG-ETX14) - 200cca

16lb battery (http://www.bigcrank.com/motorcyclebatteries.mv?p=BIG-ETX16) - 275cca

Evo guys claim car starts no problem in the winter even after sitting for a good amount of time. Just cant leave the radio/lights on w/o the car running for an extended period of time

[KrissrocK]

yeah, i've been running a Deka 11 lbs for a while now...made it through the winter and this will be the first summer. Starts car fine. Even if it doesn't start the first time, it's still got enough juice for more cranks.

But yes, I wouldn't leave the radio on for long. I have a volt meter so i watch it carefully.

[blacksail337]

does fix a flat really work? i've always been really leary about running around with no spare or jack

that wood with carpet thing looks awesome, great work

[Cincy]

Depends on how big the punchur is. Something like a nail hole should be fine for a short time, but a decent sized cut, you are SOL

[AWDrifter]

lol Im all for someone burning up some hydrogen filled tires. As for the nitrogen, as said its for stable pressures and moisture free. 30lbs of nitrogen in your tires is the same as 30lbs of air(something like 78% nitrogen anyways...), it has no weight reduction effect.

[225tt]

Noob questions but do the AWD Roadsters have a counterweight and if so where he heck is it at? I have never heard of it....

[frostyflax17]

all tt's have it from what i've read. it's under your rear bumper, you have to remove the tail lights, then the bumper, and then the crash bar. 3 bolts are holding it on.

35lbs or somethin like that. i have to take mine out still.

[225tt]

Hmm crazy, I think I should try to lose about 15 lbs too, heck 185 sounds pretty good for me!

[l88m22vette]

I just started a diet actually, I figure if the TT can lose 40lbs so easily why can't I? A nice 180lbs sounds good to me :D

[Cincy]

178lb to 151lb for me in the last few months. :tt2:

[frostyflax17]

^fatty

haha

165 and not much room to lose weight unless i go anorexic. I think i need to be healthy to drive my car though.
If i can get my 225 to under 3000lbs i'll be happy.

[225tt]

Roadster or coupe?

[Cincy]

they all have it. Its there to offset the gas tank

[CoreyHarTT]

You guys are a bunch of skinny f*(ks!

I add a good 250-260 pounds to my car... In fact, when I first got the car it weighed in at 3500 even with my fat a$$ in it. I'll be lucky if I can get my 180 quattro to weigh in at 3000 without me in it...

[KrissrocK]

You guys are a bunch of skinny f*(ks!

I add a good 250-260 pounds to my car... In fact, when I first got the car it weighed in at 3500 even with my fat a$$ in it. I'll be lucky if I can get my 180 quattro to weigh in at 3000 without me in it...

I'm with ya Cory! 255 lbs of shock destroying beef here. But I have no idea what my car weighs. I'll see if i can get a weight the next time I get my alignment done. It's a QR, so it's gonna be heavy regardless.

my rear weight will be gone eventually..be nice to get a DIY up