Tamiya TT02 Thread
#2807
I was a little mean to my hop-upped TT02 in the last 15 months. I used its parts for other projects. Then a club in the region announced a friendship race using the Tamiya Euro Cup rules and classes. So I had to complete the chassis again and also found a nicer solution for the rear body posts.


Now with added shocks and electronics:







Now with added shocks and electronics:





#2809
Hi all,
we've been running a TT class at our track for a few years now, and ive always raced my Porsche 911 RSR.
It has always been very loose on neutral, as in will spin out if i let off the throttle, which i thought was a TT02 trait. However I swapped with a fellow racer at the end of the day- Nissan GTR 58625 and it was planted.
Does anyone know why the difference? Cars are both stock except for bearings and his has oil shocks, New kit tyres on both and my drivetrain is very free.
Is it the shocks, 911 wide tyres or wheelbase? or maybe something else?
Thanks!

PFA
we've been running a TT class at our track for a few years now, and ive always raced my Porsche 911 RSR.
It has always been very loose on neutral, as in will spin out if i let off the throttle, which i thought was a TT02 trait. However I swapped with a fellow racer at the end of the day- Nissan GTR 58625 and it was planted.
Does anyone know why the difference? Cars are both stock except for bearings and his has oil shocks, New kit tyres on both and my drivetrain is very free.
Is it the shocks, 911 wide tyres or wheelbase? or maybe something else?
Thanks!

PFA
#2811
It’s a weight transfer issue. You need to reduce droop in front, so that when your off throttle, not too much weight is transferred to front causing rear to loose traction. You do this by adding spacers inside front shocks.
#2812
Hi all,
we've been running a TT class at our track for a few years now, and ive always raced my Porsche 911 RSR.
It has always been very loose on neutral, as in will spin out if i let off the throttle, which i thought was a TT02 trait. However I swapped with a fellow racer at the end of the day- Nissan GTR 58625 and it was planted.
Does anyone know why the difference? Cars are both stock except for bearings and his has oil shocks, New kit tyres on both and my drivetrain is very free.
Is it the shocks, 911 wide tyres or wheelbase? or maybe something else?
Thanks!

PFA
we've been running a TT class at our track for a few years now, and ive always raced my Porsche 911 RSR.
It has always been very loose on neutral, as in will spin out if i let off the throttle, which i thought was a TT02 trait. However I swapped with a fellow racer at the end of the day- Nissan GTR 58625 and it was planted.
Does anyone know why the difference? Cars are both stock except for bearings and his has oil shocks, New kit tyres on both and my drivetrain is very free.
Is it the shocks, 911 wide tyres or wheelbase? or maybe something else?
Thanks!

PFA
#2813
Tech Adept
Joined: May 2018
Posts: 163
From: Southern Germany
#2814
Tech Adept
Joined: May 2018
Posts: 163
From: Southern Germany
Hi all,
we've been running a TT class at our track for a few years now, and ive always raced my Porsche 911 RSR.
It has always been very loose on neutral, as in will spin out if i let off the throttle, which i thought was a TT02 trait. However I swapped with a fellow racer at the end of the day- Nissan GTR 58625 and it was planted.
Does anyone know why the difference? Cars are both stock except for bearings and his has oil shocks, New kit tyres on both and my drivetrain is very free.
Is it the shocks, 911 wide tyres or wheelbase? or maybe something else?
Thanks!

PFA
we've been running a TT class at our track for a few years now, and ive always raced my Porsche 911 RSR.
It has always been very loose on neutral, as in will spin out if i let off the throttle, which i thought was a TT02 trait. However I swapped with a fellow racer at the end of the day- Nissan GTR 58625 and it was planted.
Does anyone know why the difference? Cars are both stock except for bearings and his has oil shocks, New kit tyres on both and my drivetrain is very free.
Is it the shocks, 911 wide tyres or wheelbase? or maybe something else?
Thanks!

PFA
#2815
No matter what kind of racing you're talking about as has been said so often it's tires, tires & tires. I would listen to Raman he's a very experienced Tamiya driver and his suggestion may be an easy improvement.
#2816
For a box stock set up (friction shocks and all) I would say to switch because of the wheel base first making the biggest change. Any Tamiya body with a rear wing is also going to help a ton. The Raikiri is the best imo. The BRZ GT300, Ferrari 458, GTR, STI are all very decent or a 04 NSX lid if you can get ahold of one. Use a set of 26mm wheels as well, all the way around and see how it goes.
So If set up correctly, it will surprise you.
#2817
If your track allows it, pick up some yeah racing shocks. if it has to be Tamiya pick up the plastic CVA or if you can spend a little more the TRF shocks. Either way, you need oil filled shocks
#2818
My suggestions were mainly based on box stock no options. I hear you though! The tt02’s are so capable with a good pair of hands.
#2819
Next would be slicks that come with the Porsche kit. I bet you they are using left over stock from TA01 days in the 90s. The rubber on them is junk.
The released the Super Grip radials on 30mm, pair those with the front 26 mm and it will change the car dramatically.
https://www.tamiyausa.com/shop/tires...-radial-tires/
#2820
Hi all,
Thanks for all the info!
Nothing as far as im aware, me neither.
I agree, 80% is tyres. i just hadn't realised they'd be using different tyre compounds/rubber in the TT line up
I actually like the way it looks bouncing around, look more realistic to me 
They do allow it, ive ordered some Tamiya CVAs.
i have been running this car for years now and normally finish top 3. I just thought everyone had the same traction issue, as they always complain of lack of grip.I
I've just learnt to drive it like a proper 911, just annoying when i get it wrong and spin out.
These are the ones i have -Tamiya 50547 (SP547) Wide Racing Slick Tires w/inner Sponge (1 Pair).
I've ordered some Tamiya CVAs, do you mean reduce the rear droop to stop front weight transfer?
I'll try a set of the Super grips if this doesn't work. Edit - Seems the Super Grips are out of stock everywhere!
For those interested in how much wear you can get out of these, i ran the kit tyres for 3 years - Outdoor asphalt (32s lap), we have a large, low grip surface
By this stage it was basically on the carcass, and noticeably affected the top speed/rollout


Thanks for all the info!
Thanks I missed that. Ok well there is your issue right there, you can’t race a car with oil filled shocks using the pogo sticks lol.
If your track allows it, pick up some yeah racing shocks. if it has to be Tamiya pick up the plastic CVA or if you can spend a little more the TRF shocks. Either way, you need oil filled shocks
If your track allows it, pick up some yeah racing shocks. if it has to be Tamiya pick up the plastic CVA or if you can spend a little more the TRF shocks. Either way, you need oil filled shocks

They do allow it, ive ordered some Tamiya CVAs.
I've just learnt to drive it like a proper 911, just annoying when i get it wrong and spin out.
Those Pogo stix gotta go though lol.
Next would be slicks that come with the Porsche kit. I bet you they are using left over stock from TA01 days in the 90s. The rubber on them is junk.
The released the Super Grip radials on 30mm, pair those with the front 26 mm and it will change the car dramatically.
https://www.tamiyausa.com/shop/tires...-radial-tires/
Next would be slicks that come with the Porsche kit. I bet you they are using left over stock from TA01 days in the 90s. The rubber on them is junk.
The released the Super Grip radials on 30mm, pair those with the front 26 mm and it will change the car dramatically.
https://www.tamiyausa.com/shop/tires...-radial-tires/
I've ordered some Tamiya CVAs, do you mean reduce the rear droop to stop front weight transfer?
I'll try a set of the Super grips if this doesn't work. Edit - Seems the Super Grips are out of stock everywhere!
For those interested in how much wear you can get out of these, i ran the kit tyres for 3 years - Outdoor asphalt (32s lap), we have a large, low grip surface
By this stage it was basically on the carcass, and noticeably affected the top speed/rollout







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