The main things that will give the most weight saving is the battery (a 2cell lipo in a 1-cell hardcase, weights only 156gr) and a lightweight body set (80gr).
Along with some screws from alu and also titanium, i removed the battery posts & battery holder
You also save some weight with universals with alu swing shafts.
I'm still able to loose some extra weights here and there.
For example, using the alu wheel hexes (this would give a weight saving of at least 5gr but it narrows the car a few mm's) a light weight spoiler set with the spoiler stands to be trimmed inside (this will give some extra weight, about 5gr and it looks more realistic to)
You could also add some very expensive titanium wheel outdrives (53681) to the universals and this will give (so i think) another 8gr or more of weight saving)

For now i have the electronics on one site but to have a more balanced car i should re-locate the ESC to the side of the battery.
All these things will be done before the next race, my little girl runs the car in a junior series (only silvercan motor allowed).
I've been doing this because our next races are on large outdoor tracks were speed can be a big advance
When all these things are done i will do my best to take a picture of it.

So stay tuned

I have been making a race spec TT02 and its running very well now against the Xrays etc at our club. I have made it lighter also. I will post a pic soon. (Its not as fast as my 418, but then not much is

I look forward to see your car here, perhaps we can use both our ideas to have the ultimate TT-02 chassis
I will be re-locating the esc tonight and see how it turns out on the 4 weight scales.

Here are some pictures of my hoped up TT-02.
The car weights race ready 1180gr (except a personal transponder, but that's another 10gr)







I'm also being busy to modify some alu diff outdrives from a TRF417, it does fit the TT-02 but i need to have a little more space for the swing shaft protector.
I've already done 1 alu diff outdrive and it's been fitted to the rear of the TT-02 chassis.
This would be another weight saving between 4 or 5gr

Today i had the chance to test the car along with my other standard TT-02.
The car felt absolutely stunning, it feld well balanced, very quick acceleration and it carried a lot of speed on the straight.
The difference in (my best lap time) between the standard and the race spec TT-02 was almost a second.
Both cars had the same FDR (90T spur with a 42T pinion), that was a bit high for the track i went to but it means the car can go even faster with the correct FDR.
All in all, a very good result for all the effort i put into it.
I will continue my search for more weight saving, therefor i allready ordered the FXX 26mm wheels with an offset of 4mm. Meaning, that i'm able to mount the alu wheel hexes to save some more rotation mass and weight
Perhaps i could also clean the ball bearings to get the best rotation out of them.
I checked the lap times of the last race at the track i went to and i was even faster then the fastest guys of that day even with a slower motor

Looking good I have to fit std electronics (battery). I'm waiting for my screws (titanium) to arrive before the final weigh in. I also have done slits for tape

I've also removed the rear lower part (the same part that must be used in front for mounting the foam bumper), now with my personal transponder fitted the car weights under 1180gr.
My goal is to get the weight down to 1170gr race ready.
I'm also thinking to mount some ball differentials, don't know if that would improve the cars handling but from what i've been reading it should improve.

At the moment I have a gear diff in the rear (with a drop of thick grease to make it feel similar to a 2-3k oil diff.

The front has a spool at the moment, although I have got some 1000,000 putty to fit in the front diff soon to try that.

I have to run to 1350g so I am building the car around that

Today i went to a large outdoor track to test the car.
I was able to compare the speed with some other guys and the car was very fast.
The other guy was running a faster motor with also a bigger pinion and on the straight i was even a bit faster then him.
Will order some ball diffs to see if that will improve my fastest track times.
I will keep you informed

I'm also being busy with painting a new light weight NSX 2005 body, just need to order another lightweight rear wing.
Pictures will follow

Tamiya does not use 8 digit part numbers, they are 7, 5 or 4. If you see an 8 digit, drop the first number. 9000614 is the correct part number.

Just being curious... What were those other cars like compared to your TT-02?

Reason for asking, I drive a TB03 in our TC Club competition ( 17.5T). I like the TB03 very much and its fun to drive. Even though the TB03 is pretty basic I won the first race with it against better and newer cars. So I've thinking of buying a TT-02 drift spec and getting it race ready...just as a new challenge...in our club competition.

What do you guys think?? Will the challenge be worthwhile or should I just forget about it??

The other guy that was running with me had also a TT-02, but he had a brushed carson cup motor (wich has a significant higher rpm then a torque tuned motor) and he was running a 46T pinion while i was only using a 44T pinion.
The track is large enough to use even larger pinions but that's the maximum of pinion he can use at our belgian tamiyacup series.
There were other guys running some TA04 and Schumacher cars (don't know the type of them and i also don't know what kind of motors they were running) but still i was faster then those guys.

To give u an answer to your question if it's worth to buy the TT-02D version, then i must say that in my opinion i find it a challenge to have a less better car and to tune it to it's maximum and then challenge those better cars on the track.
Most of the time i'm able to have equal or better lap times then those guys with better cars and faster motors.
But this all comes down to drive the car to it's maximum abilities and to drive as smooth and as fast as you can on the track without making any mistakes.
Personal i think the TT-02 has a lot of potential, but to get the car improved to it's maximum then it will cost a lot of money.
For that money you can easily buy a TRF version.
For example, somtimes i check on sites what it would cost me for buying all the hop-up parts that can improve the cars handling of weight and without the car itself it costs easily over $300 on parts (without shipping cost or other electronics).
That's more then 2 or 3 times the cost of the car.
If that's worthed to you then you should do it, but it still is a lot of money to spend on a basic car.

Well thanx for your reply. It is good to read you also think the chassis has potential. Like u do, I like the challenge to get the max out of a car and like you put it, challenge those better cars on the track. In this case the TT-02. Dont get me wrong I love to drive those other cars like the TB-03, the TA05verII R, the TA-04 proSS Drove them all, But I find it relatively easy to compete with those cars. To be honest I had the best time (most fun) driving my TT-01 type E.. and compete with the other "better"cars..
I think its worth it to give it try again. Maybe not money wise, like you pointed out, but just for the fun of it..hahaha. and I love a challenge

Maybe we see each other at the final Belgian/Dutch Tamiyacup race at the Baanbrekers Rucphen racetrack.

I will be there at the belgian/dutch final, just keep in mind that a TT-02 has less possibilities to have the same low FDR then those other cars have.
It is possible to go low in FDR but when going to the Dutch/belgian final al gears and parts must be from tamiya.
In the past the belgian drivers were not allowed to use other brands of gears but from what i heard is that this will be the case for all drivers.
Cause a FF-03 chassis is unable to have the same low FDR for example as a TA05 or TA06, except when using some other brands of gears.
And that was the case last year when a FF-03 driver was faster then other cars like my TA06 or TB03 from Eric-Jan or others.
A 90T spur and a 50T pinion is the maximum you can mount in a TT-02, this will give you a FDR of 4.68.
In the super stock series the lowest FDR you can use is a 90T spur on a 46T pinion, but in this series you are only allowed to use a TT-01 or a TT-02 chassis.
In the EuroTW series i was using a FDR of 4.25, that's way lower then what can be mounted in a TT-02.

Yep as above the TT02 is fun if you take it as it is and just go about trying to see what you can get out of it.

If you are not doing Tamiya races you can easily get a low FDR to be able to gear a TT02 to run anywhere.

http://www.thercracer.com/2014/04/ta...ta-blinky.html