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XV-02 Lancia Delta - Tamiya Rally Review - Alejo's Project Thread

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As I said before, what a beauty. Besides one exception I run all my cars but this one would stay on the shelf as I would be afraid to scratch it. Great work! 👍

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TT-02XV Ford Escort Build

8445165427_22ff09d939_b.jpg

I think rally cars are the perfect scale-looking bashers. They can gobble rougher terrain than a touring car, are available in accurate liveries and are simply a blast to drive around.

While my XV-01 Celica certainly checks all these boxes, I've been wondering if a budget TT-02 can be built to approximately handle like an XV-01 (or XV-02?) by tweaking it a bit. Without further introduction, the starting point will be Tamiya's TT-02 Ford Escort kit:

51Lr0cdHIBL.jpg

Planned setup:

  • Low-budget, basic hop-ups.
  • The body will be painted to mimic the iconic Michelin Pilot livery.
  • Tweaks to alter handling and weight balance to try getting similar handling as the XV-01.
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On 4/9/2023 at 4:51 AM, OoALEJOoO said:

TT-02XV Ford Escort Build

8445165427_22ff09d939_b.jpg

I think rally cars are the perfect scale-looking bashers. They can gobble rougher terrain than a touring car, are available in accurate liveries and are simply a blast to drive around.

While my XV-01 Celica certainly checks all these boxes, I've been wondering if a budget TT-02 can be built to approximately handle like an XV-01 (or XV-02?) by tweaking it a bit. Without further introduction, the starting point will be Tamiya's TT-02 Ford Escort kit:

51Lr0cdHIBL.jpg

Planned setup:

  • Low-budget, basic hop-ups.
  • The body will be painted to mimic the iconic Michelin Pilot livery.
  • Tweaks to alter handling and weight balance to try getting similar handling as the XV-01.

I am doing something similar (which has been the case before... Like the reverse one way unit RWD project 😱) and I am installing the ESC over the front bumper. I am making a flat bumper cover out of styrene to replace the stock one; the ESC will simply sit on it. I am using a shorty pack pushed an the way forward as well. The lighter battery also helps with the lateral CG now that the ESC is down the centerline of the car. Otherwise I have the droop, ride height and diffs figured out from the past year or so that the car has been running off-road. So I'll be following this next one with great interest!

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On 4/9/2023 at 5:51 AM, OoALEJOoO said:

TT-02XV Ford Escort Build

8445165427_22ff09d939_b.jpg

I think rally cars are the perfect scale-looking bashers. They can gobble rougher terrain than a touring car, are available in accurate liveries and are simply a blast to drive around.

While my XV-01 Celica certainly checks all these boxes, I've been wondering if a budget TT-02 can be built to approximately handle like an XV-01 (or XV-02?) by tweaking it a bit. Without further introduction, the starting point will be Tamiya's TT-02 Ford Escort kit:

51Lr0cdHIBL.jpg

Planned setup:

  • Low-budget, basic hop-ups.
  • The body will be painted to mimic the iconic Michelin Pilot livery.
  • Tweaks to alter handling and weight balance to try getting similar handling as the XV-01.

Ooh now this interests me. I love my XV-01 and am newish to TT-02s with my budget rally one that I'd like gradually to improve. 

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@Pylon80 and @BuggyDad, thanks for the comments, guys! What I love most about the TT-02 is now easy it is to tweak/modify. A lot of that has to do with its low-cost as we would all hesitate to hack an expensive/rare chassis.

The body will be finished first, then I'll start with the chassis. In general, the target is to reduce rear grip, shift weight transfer to the front and try to move weight towards the center line. So far these are my thoughts to get that XV-01 handling.

  • Free front diff, stiff rear diff.
  • Medium springs front, stiff springs rear.
  • CVA shocks front, pogos rear.
  • Add weight to the front bumper.
  • Try to mount the battery on its side and closer to the center, similar to XV-02.
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Rally Cockpit

From my modeling and miniature painting background, detailing cockpits is a part of the RC hobby I enjoy quite a lot. The starting point is Tamiya 54491 Rally Cockpit Set. The modern driver jumpsuit was used loosely as template:

2014-Wales-Rally-GB-Malcolm-Wilson-Matth

Cockpit steps:

  • Wash & trim the cockpit tray.
  • Spray TS6 Matte Black.
  • Paint by brush using Vallejo Model Color acrylics.
  • Seal everything with TS80 Flat Clear.
  • Apply stickers.

Early shading and highlighting:

FordEscort_02.JPG

Shading, highlighting and detailing done. The curvy surface of the jumpsuit makes using stickers difficult. Water decals could be an option. Instead, I decided to paint free-hand all the sponsors:

FordEscort_02.JPG

Steps for helmets:

  • Assemble, sand and wash.
  • Spray Tamiya white primer.
  • Paint by brush using Vallejo Model Color acrylics.
  • Seal everything with TS13 Clear for a gloss finish.
  • Apply by brush Vallejo Matte Varnish on face area.
  • Apply stickers.

For rally cockpits, I try to recreate the dynamic of the co-pilot giving the stage pace notes to the driver. This means his head is slightly turned left towards the driver but his eyes are fixed straight ahead & a bit down towards the notebook. The large & flat surface of the helmets allows using stickers here.

Right before spraying TS13 clear:

FordEscort_03.JPG

Finished cockpit:

FordEscort_04.JPG.6f1368f78086d8b15eb20cbe26400672.JPG

FordEscort_07.JPG.3b294127db7759bc44aa8ee22e76c835.JPG

FordEscort_05.JPG.f4296b71bb7f1f4e115f7e84af771a6c.JPG

FordEscort_06.JPG.66ce2d62d85d7c88529cfc523e0e95fa.JPG

Stay tuned for the Ford Escort body coming up next :)

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26 minutes ago, simalarion said:

FFS @OoALEJOoO that is some serious Epic Performance!, i Applaud you!

It really is! 

How the heck to you keep that steady a hand (and the vision tk go with it)? Are you 20cm tall? 

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27 minutes ago, simalarion said:

FFS @OoALEJOoO that is some serious Epic Performance!, i Applaud you!

Second that 👏👏👏👏

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4 hours ago, Busdriver said:

Second that 👏👏👏👏

Absolutely! An incredible talent. So much character and expression on the faces

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Thank you all for the comments :)

21 hours ago, BuggyDad said:

How the heck to you keep that steady a hand (and the vision tk go with it)? Are you 20cm tall? 

It would be great to be 20cm tall, roughly 1:1 with the cars! Instead of painting the figures, I could drive the car from the inside!

The steadiness of my hands and my eyesight is average, I guess. It's all about bracing or stability techniques. The first section of the below video (at around 1:20) gives some good examples on how to get stability:

Crucial Brush Control Techniques for Miniature Painting - YouTube

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I am in awe of your skills, certainly a level to shoot for that I doubt I'll ever obtain. In fact, your builds helped inspire me to get back into RC. I've grown more attracted to the "modeling" aspect of the hobby and less with the "racing" that seems to always distract from the joy. Bravo man! 

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Ford Escort Body

Yellow + blue creates fantastic color contrast. Couple that with a gigantic Michelin Man and Pilot sponsorship and we have a really nice vibrant rally livery!

Tamiya's 1/01 TT-02 Escort body is not the exact same as the TA-01 Escort RS Cosworth, with the most notable difference in the rear wing. Other than spending a fortune trying to get an original TA-01, adapting the TT-02 version should be close enough.

All masking was done in sequence, followed by painting:

  • Spray PS6 Yellow
  • Spray PS1 White to back the yellow
  • Remove yellow masking
  • Spray PS30 Brilliant Blue
  • Spray PS1 White to back the blue
  • Remove blue masks
  • Spray PS5 Black to back everything and give a nice solid look

The rear wing and mirrors were painted using the same PS sprays, then coated with TS13 Clear. Panel lines done with a black sharpie (might tweak them a bit later).

Stickers were sourced from Screenprintdigital's eBay store. Same as the Audi stickers I bought from them on my earlier build, they are quite good but a bit translucent. The stickers placed on the blue areas had some bleed-through. Nothing major, but definitely not Tamiya quality.

The original car features a non-symmetric pattern left-right with the left mirror being yellow and the right one blue.  This asymmetry seemed like it would have made the on-hand Pilot stickers not fit well. I decided to make the pattern symmetric with both sides as the original's left side. Not ideal but workable.

FordEscort_08.JPG.17019c3297cc0f24e821a191c57b204c.JPG

FordEscort_09.JPG.e289e12d0ff7e512a722bd072ef62dc3.JPG

Most of the internal body surfaces were reinforced with Gorilla duct tape.

FordEscort_10.JPG.5d2b38b6a7ea4ffac7b9821c713a492e.JPG

That huge Michelin man on the roof is my favorite part. Turned out quite nice!

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On 4/9/2023 at 1:51 PM, OoALEJOoO said:

I've been wondering if a budget TT-02 can be built to approximately handle like an XV-01 (or XV-02?) by tweaking it a bit.

Interesting idea.. TT-02 supports TA/TB suspension - would it be possible to equip it with XV-01 suspension, too? That would be interesting alternative to XV-02.

 

 

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1 hour ago, Honza said:

 - would it be possible to equip it with XV-01 suspension, too? 

 

 

Way ahead of you. Got the idea myself a while back. Haven't finished it yet. My chassis is TT02 Type-S, so the steel suspensions shafts are from that kit. But essential you can do the same from a standard TT-02 and you only need the steel suspension steel shafts. And XV-01/02 suspension parts naturally :-) Further I have added nitro tubing as can been seen in the pictures. There are zero sideways play. For and aft movement depends on the shimming determine the wheelbase too. 

Edit: Couldn't show the pics. Do you see the pictures or do you see a link only?

front.HEIC rear.HEIC bushings_mount_1.HEIC

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On 4/14/2023 at 2:50 PM, OoALEJOoO said:

Rally Cockpit

From my modeling and miniature painting background, detailing cockpits is a part of the RC hobby I enjoy quite a lot. The starting point is Tamiya 54491 Rally Cockpit Set. The modern driver jumpsuit was used loosely as template:

2014-Wales-Rally-GB-Malcolm-Wilson-Matth

Cockpit steps:

  • Wash & trim the cockpit tray.
  • Spray TS6 Matte Black.
  • Paint by brush using Vallejo Model Color acrylics.
  • Seal everything with TS80 Flat Clear.
  • Apply stickers.

Early shading and highlighting:

FordEscort_02.JPG

Shading, highlighting and detailing done. The curvy surface of the jumpsuit makes using stickers difficult. Water decals could be an option. Instead, I decided to paint free-hand all the sponsors:

FordEscort_02.JPG

Steps for helmets:

  • Assemble, sand and wash.
  • Spray Tamiya white primer.
  • Paint by brush using Vallejo Model Color acrylics.
  • Seal everything with TS13 Clear for a gloss finish.
  • Apply by brush Vallejo Matte Varnish on face area.
  • Apply stickers.

For rally cockpits, I try to recreate the dynamic of the co-pilot giving the stage pace notes to the driver. This means his head is slightly turned left towards the driver but his eyes are fixed straight ahead & a bit down towards the notebook. The large & flat surface of the helmets allows using stickers here.

Right before spraying TS13 clear:

FordEscort_03.JPG

Finished cockpit:

FordEscort_04.JPG.6f1368f78086d8b15eb20cbe26400672.JPG

FordEscort_07.JPG.3b294127db7759bc44aa8ee22e76c835.JPG

FordEscort_05.JPG.f4296b71bb7f1f4e115f7e84af771a6c.JPG

FordEscort_06.JPG.66ce2d62d85d7c88529cfc523e0e95fa.JPG

Stay tuned for the Ford Escort body coming up next :)

Im genuinely speechless at how incredible that is. Ive got a blank one and Im scared to even open it!? Thats absolutely brilliant!

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TT-02XV Chassis

Interesting comments above about using a TT-02S, instead of a base TT-02, as the foundation for the "XV" conversion. This would open the option to use XV-01 or XV-02 suspension (both cars share most of the suspension parts). Using XV parts for the TT-02XV seems a bit of cheating though :). The spirit of the build is also to be low-budget. Looking at my spare parts, I was able to piece together the entire TT-02 chassis out of spares! All the original kit parts will be saved.

With that in mind, I think this build qualifies for both @Cuiken's Silvercan rally build-off thread and @Gebbly's spares build!

Parts used:

  • TT-02 base chassis
  • Ball bearings
  • 54578 25T 06M Hard-coated pinion
  • 2x 18mm turnbuckles (steering links)
  • 1x23mm turnbuckle (servo link)
  • 2x 32mm turnbuckles (steering stabilizers)
  • 53980 Dust cover for adjusters
  • 54571 TT-02 Motor cooler
  • CVA Mini shocks (front)
  • 51000 High-Torque servo saver
  • 54559 TT-02 Low-friction suspension balls
  • JX 4409MG servo
  • Tamiya TBLE-02S ESC
  • Flysky FS-GT3B Receiver
  • 30x30mm fan
  • M8 bolts for front weight
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22 hours ago, GreatDane said:

Edit: Couldn't show the pics. Do you see the pictures or do you see a link only?

 

Your phone uses HEIC format for photos - you need to convert them to jpg to show in the post.

Anyway, I'm interested in the result - but let's not hijack OoAlejooO's topic :)

@OoALEJOoO I'm interested in result :)

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1 hour ago, Honza said:

Your phone uses HEIC format for photos - you need to convert them to jpg to show in the post.

Anyway, I'm interested in the result - but let's not hijack OoAlejooO's topic :)

@OoALEJOoO I'm interested in result :)

Thanks for info. I had a bad feeling it has something to do with HEIC format. Thanks.

As for the result I will get back with more information when get some work done. Hopefully soon and in a separate thread. 

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1 hour ago, Andylincs said:

Here’s the photos 👍

704BACCA-E2A5-4C18-96E7-FC5205FB8796.jpeg

54F74E01-9F93-44D0-895A-EA408C89D15F.jpeg

0FB91466-7710-4F2C-99C2-BF1FFCD8C0A3.jpeg

Thanks @Andylinc. Much appreciated c'',) 

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TT-02XV Chassis - Continued

Over the years I've had the chance to build multiple TT-02 chassis, with added understanding and improvements on each one. This build includes all the little tweaks and updates accumulated so far. The car was built using 257mm wheelbase, high ground clearance and wide rear.

FordEscort_16.JPG.582a258e29be03fb17889c0e72c7ad81.JPG

Differentials

Working on getting that magical XV-01 handling, the rear diff was set quite stiff using putty, while the front was left 100% loose using a tiny bit of ceramic grease.

Rear differential gear case (step 9)

After cutting part A4 from the sprue, make sure all burrs & flash from the part before attaching to the chassis. If any bits are left, they will interfere with the spur gear cover (part D3) and prevent proper sealing of the spur case, which can allow dirt & debris in.

Gear case sealing

All the gear case parts 2xA4 and D3 are sealed using a small amount of grease along the periphery of the mating surfaces with the lower deck. This particularly important in parts A4 since their mating surface is completely flat (D3 has a small step).

Suspension balls

This is a weak point on the TT-02 and TT-01, specially when run on dirt or abrasive environments. The balls will wear quickly and create a huge amount of slop in the steering and suspension. If left unchecked they will even pop-out of the suspension arms. Switching the stock plastic balls to metallic 54559 TT-02 Low-friction suspension balls greatly reduces wear.

Suspension shimming

The TT-02 is famous for its relatively sloppy suspension. You can use 5mm shims 53587 and 3mm shims (53585) to remove a lot of the slop. Use 5mm to shim the suspension arms, and 3mm to shim the rear uprights.

Steering shimming

Another source of slop is in the steering links and bridge. These use step-screws as pivots and have quite a bit of slop. A lot of this can be removed by "shimming" the step-screws using aluminium foil. Cut a small piece of foil and use it to wrap a bit less than one turn around the flap section of the step-screw (you will see the foil having a small gap end-to-end). Keeping the foil in place, slide the step-screw into the joint and tighten. Most of the slop can be reduced this way.

High-torque servo saver

Low-cost and a must-have to reduce steering slop. The stock plastic saver is way too soft and useless if you have a stronger servo with metal gears.

Turnbuckles are your best friend

More slop can be eliminated by adding turnbuckles in all the steering components. 2x18mm for the steering links and 1x23mm for the servo link. Further these will allow to tune front-toe and set the steering center at the servo center.

FordEscort_15.JPG.60df042cc7c530a3798dea21b907e54c.JPG
 

Front brace

Finally, one more bit of slop can be removed by adding braces in the front. These connect the front bumper mount B7 with the front uprights. A ball connector at the top of each upright and another one mounted on part B7 (using M3 bolts + shock spacers ), both connected using 2x32mm turnbuckles. Make sure the turnbuckle length is set so that the connectors are free (you don't want to introduce side-loading  to the uprights with these turnbuckles).

Front weight

One more tweak aiming to get that XV-01 handling, weight was added to the front bumper. To this effect, x2 M8 bolts + 2 nuts each were mounted on part B7 and x7 M8 bolts screwed directly into the bumper foam (a 5mm was drilled first). They fit quite snug and should hold well. Total weight is a bit less than half of a NiMh pack, at around 160g.

FordEscort_11.JPG.db9b7c41b4031aa98117faea51ef9f02.JPG

FordEscort_12.JPG.6fbb31c4eb29f7ae0095ede403c579ee.JPG

Shocks

The idea is to have good grip on the front and poor grip on the rear to mimic the XV-01 handling. I chose some old CVA mini shocks I had for the front, assembled using 1 small + 1 big spacer inside, with the stock pogo springs, #900 oil and 2-hole pistons. For the rear, the box-stock plastic pogos were used but assembled with stiffer springs. I didn't use step-screws for the pogos, but tube-collars with M3 screws. This reduced some slop and also prepares the parts in case I move to ball connectors for CVA shocks later.

Doing some mild drop tests, the car is extremely well dampened (zero bounce) on the front and extremely bouncy on the rear. I'll test the car with this setup first, but I anticipate the rear will be way to jittery. If this happens, I'll use CVA minis also on the rear but with stiff shocks & dampening.

Shock connector protectors

Add a washer between the screw and the ball-collar of the lower shock mount. This prevents rocks from chewing the soft plastic of the shock connectors.

FordEscort_13.JPG.09e23c4d37cec26d56fa3ec5537bf30c.JPG

Power switch & motor cooler

Part D8 is meant to provide a switch mount and also a fan mount. However, temperatures can be lowered much better using an aluminium fin cooler than a fan blowing into the bare motor (fan + cooler works even better but not really needed for a silvercan). If you use part D8, then you can't put a cooler but if you don't use it, you lose the switch mount. The solution is simple, cut part D8 and you can both mount a cooler and the switch. The chopped-off fan mount can be used as a fan protector. Win-win-win.

FordEscort_14.JPG.28113f7a544b35acef05ed7c7d20b3c6.JPG

Body posts

Some people prefer to cut the body posts with a flat sharp cut. This looks great but it is terrible for fitting bodies as the flat corners don't help with passing the post through the hole. I prefer to cut the post and then manually chamfer/round the tips (so that they look similar to the end of new posts) which greatly facilitates getting bodies on/off. To better fit and minimize the holes cut into the cockpit, the rear posts instead of using clips to support the underside of the body, I use 6x9mm tube (picture show white silicone since I haven't finished my stock, I would recommend black nitrile instead).

Others

  • Ball bearings + hardened pinion. Don't build a car without them!
  • 53980 Dust cover for adjusters are cheap foam rings that reduce ball connector wear and also jittering of the joints.
  • 30x30mm Raspberri-pi fans are cheap, reliable and enable running the ESC mercilessly even on hot weather.
  • 5mm shims can be used to remove axial play on wheels. Use them behind the little 2x10mm shaft that goes into the driveshaft. As with all shimming, make sure you don't over-shim! A little amount of play needs to remain.

For the moment I'll keep the battery flat. After testing, maybe I'll try to flip it vertically like in the XV-02.

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