Assassins HPI Nitro RS4 Evo 3 RTR R/C Car

AssassinTuner

AssassinTuner

829
Assassins Nitro HPI RS4 Evo 3 RTR

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I'm dedicating this thread to the Tuning & Modifying of My Nitro Powered R/C Car. This is a great Hobby for the Car Junkies as it let's you do many of the same tuning just in small scale, at a fraction of the cost. You will see many familiar terms in the R/C tuning world, camber, toe, ride height, etc. GT5 is digital scale, while Nitro R/C is small scale.

I also have full size car I use for 1/4 mile racing (MKII GTi VR6 swapped), but when pushing hard at the Track, things break often & parts are not cheap (unless you drive a Civic) R/C racing is much easier on the pocketbook & fills the Gap when the car is on down time.

My car started as a Base model HPI RS4 Evo 3 RTR Kit. This is a great starter kit, loaded with features & many upgradeable parts. It's not too expensive, around $350-$400 bucks. It comes standard with AWD, 2speed gearing, disk brake, & a .15 HPI Engine. You can opt for the .18ss or .18ss-plus kits alternatively. The difference being the engines. The .18ss has a normal RPM with a higher displacement of .18. The .18ss-plus has the same .18 displacement but revs higher to 5200rpm."

What I have started as the Base model with the .15 Engine.

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Modification List

Lightweight Chassis
Heat-sync Engine Mounts
.18ss-plus Engine Swap
Performance Exhaust
Rear Exit Exhaust Pipe
High Torque Low gear/High speed Top Gear
Full aluminum suspension upgrade
Adjustable Toe link
Carbon fiber top plates
Adjustable Shocks
3 Sway Bar Sets
Progressive Springs
1 piece dogbone axels
Disk Brake upgrade

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I'll be posting as I work on it, Tune it and put it in action. I'm attempting to join a Racing Group in Montreal, if you know of any, post them up. If you have a bad ass R/C, post it up we can chat about Tuning them.
 
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R1600Turbo
https://www.gtplanet.net/forum/showthread.php?t=99670
Click to expand...

Thanks, good link.

Updated

Okay so I had to do some work on the Car today. I had been running initial testing yesterday with the brake uninstalled. The shocks were mixed up (a front on rear, & a rear on front). The receiver was finished, plus the wheel angles and carb were out of Tune.

I installed a new receiver, no biggie. Electronics test was good, so Despite not having the brake installed I fired her up for the first start this summer. She ran but a touch rough at start (installed a new glow plug) she's purring, and starts easy. I adjusted the carb, & took it for a spin. She ran great, but no brake so I took it easy.

Tonight I did the Brake install. It took removing the Top Plate, & rear differentials. All went well, brake installed, but it's too late tonight to take it out for a run. Tomorrow it's on.

I also removed all the shocks and re-installed them correctly. Figure Id work on adjusting the wheel angles. I need a bench for angle adjustments, doing it by eye is a PITA. I thinks I have it set good, will only know tomorrow. Slight Toe in & about 2 degrees Camber.

Finished for Tonight, I'll get back tomorrow after Testing.
 
Had the Car out yesterday for some testing, but the rain came before I could get the camera ready. I had to mess with the carb quite a bit, (stupid me, should of just reset the damn adjuster before messing with it, I had it too far open.). That and the damn exhaust manifold blew off again, gotta pick up some lock-tight today. I had at least one tank of testing out the suspension. Felt much better, MUCH better. I was getting the same cornering going left as I was when going right. Prior, I was getting tight left turns, but wide right turns.

Not to mention the huge impact of having the brake installed. Worked great, I was able to hit second gear, and even with the brake stopping took some distance. The thing just takes off when second hits.

I got her prepped to get the exhaust manifold bolted back on, so after work I'm going to grab some lock-tight, and get her on solid.

I haven't got any cones, but I'll make due until I pick some up. Even a small area can be fun with some cones set up.

I'm in the process of setting the "tweak" I just want to have all systems checked before dialing it in. I hear a Neutral car is generally optimum, but I'm generally not following the crowd. While I do agree a balanced set up is optimum. So keeping a balanced "tweak" is important.

Cheers, I'll post up a link to a short bid done before the brake was installed.
 
I used some non-permanent lock-tight & Blew off the exhaust manifold again, it's stripped up something good, gonna try some permanent lock-tight this time. If it don't stay on on going back to the stocker until I grab a new one.

Removed all steering arms and reset them to man spec, swapped a High Torque Servo in for the steering controls, and I'm going to file down the carbon top plate to allow the steering arm to pass better, it rubs it mid way turn. I'm either going to machine a new manifold/exhaust pipe or grab a aftermarket one. All depends on if I can find a half inch tube (about that, will measure with a caliper after) to make the pipe with.

I did break a dogbone after nailing a parked car. Poor steering calibration lead to bad understeer around a corner, well, that and finished tires. I removed the dogbone off the other side and ran 2WD for a bit. It ran great, but suffered massive understeer on throttle. When I got home I replaced the broken dogbone and reinstalled the one from the other side, all is well except for the exhaust manifold blowing off.

On another note, I bought the Monster Truck. A Savage XL, a couple of rolling chassis, extra engines and a bunch more. Details later tonight after I pick it up.
 
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Villain
Hey did you know there is already a thread for R/C Cars?
Click to expand...

Did you know IDC?!?!

Alriiiiiiiight!!!!

Got me my Savage XL Baby

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It's Bad Ass! I've not yet installed many upgrades that I have (aluminum suspension, even better performance exhaust than the one already installed) I will be building them into my 2nd Full Chassis. I'll be building up Chassis 2 while running Chassis 1, while saving Chassis 3 for spare parts. That's right I have 3 Savages, only need a receiver, and fuel tank for Chassis 2.

I gotta say Roto-Start kicks ass. Not bloody knuckles for me on the Truck, while I have gotten the hang of the Cars Pull-Start my knuckles are doing alright, it's just so much easier to use.

I'll get more in detail after, I'm going to go mess with it.

Update on the Car

Good and bad news.

Bad news in I broke another Dogbone, so I removed the MIP CVD Dogbones from the rear & reinstalled the stock dogbones while I look for a replacement set of CVD's, most likely not MIP as they are discontinued.

Good News is I was able to source out of my Savage parts 2 long screws with nut's, I then pulled the engine (needed the space) put the 2 Savage Long Screws in place of the standard exhaust manifold screws. Fastened on the nut's torqued them down (needs a little more) and reinstalled the engine.

:D Best Performance Yet!!!!!!!!

Not only am I getting more acceleration, smoother acceleration, and more top end speed :D the power is getting to the ground much better. It seems the CVD Dogbone was working but on the way out probably it was unnoticeably broken.

I also nabbed a couple of Heat Sensors. I have one needing a new battery installed on the Trucks Engine, and a second one that is a hand held point sensor, (if only I could use it for wheel angle tuning in gt5) I can use on the car and Truck.
 
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Some changes made to the Savages.

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Savage 1 I've upgraded to an aftermarket engine, an OS 30VG with a CEN 7.7 Tuned Pipe. Added a sway bar, new clutch, new transmission & I'm running a 16 Tooth vented clutch bell.

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Savage 2 & 3 have been merged into 1. Using too much aluminum when bashing leads to bent frames and broken Trucks. I've used the aluminum diffs & upper arms and plastic shock tower & lower arms. The chassis involves many calculated parts due to standard size dogbone cups on the diffs, but it's making it mire interesting. I also did some modifying hangar pins to make some aftermarket upgrades work together.

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I've got Savage 2 on stock wheels with spare empty shocks to get her rolling.

This is her with no wheels, still in the works.

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I'm just getting started ;)
 
OS30MAX VG Savage XL

http://www.youtube.com/watch?v=Kc6PE4BmmkE&feature=youtube_gdata_player

Just Finished Breaking In the new aftermarket engine. A nice OS Big Block. Running rich still while Tuning slowly.

I have a Port & Power Project I'm doing on a K4.6HO, a rebuild on a K5.9, and a few other engines I'm working on after all that.

I also have a secrete project I'm going to build over the winter, it will be one of the craziest Savage XL's to hit the Streets.
 
Here is a quick vid of the stock chassis running the OS30

http://www.youtube.com/watch?v=WulABx32C-k

iPhone4's Camera is pretty good. Bad lighting for those Pics better shots to come.

I know there is a generalized RC thread, but it's NOTHING like this thread following the Build of my RC cars, I have nothing against the generalized thread, but it's useless to me. I'm doing an EXTENSIVE build on my Savage XL, I don't see anybody progressively tracking a build in the general RC thread, that would be stupid. Stop being such a nit picky bunch, crying over "this should be in another thread", it's off Topic (off GT) in the generalized section, I have NOT broken ANY rules, so seriously, grow up. It's attitudes like yours that give GTP such a bad rep. You cry like sissies over ANYTHING, you even cry when no rules are broken. I've said it enough in this thread already that I know there is a generalized thread, straight up, I don't care. I'm not breaking any rules with this thread, so know your role and stop acting out of it... "oh snap", 12? 13? Certainly not far off....

Rant Over.

Awaiting parts to continue.

FLM XL HD TVP's
Integy Roll Bar
Integy Evo 4 Wheelie Bar
Integy 18mm extended offset hubs
HPI Big Bore V2 Shocks

Also another new engine is going to be ordered next week. An LRP Z30 Spec 2 making a earth shattering 4+ hp from .30 (O_O)

I have also a 2.4g controller/receiver that I'll set up when I get my new servos, they are on backorder.

Over the winter I'm considering doing another project, a Twin-Engine Savage XL running 2 LRP .28's it should be a real beast.

Not much time for GT until Winter as I'm burning the rest of the Summer on Nitro.
 
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I have an RC Nitro car just like that one! Albeit with a Ford Focus WRC shell. I take it to an abandoned car park and pull off a lot of stunts, tricks and a lot of other cool stuff. Usually every weekend depending on the weather. Just don't like refuelling the thing. Burn't my hand once doing it. Though I keep it stock, maybe when I'm older I'll get a new base model and tinker with that
 
R1600Turbo
If the mods are reading this, you might want to do something about this before it get's ugly, cause I'm just getting started. I have reported his last post and if nothing is done, well that just shows the true side of this forum. 👎
Click to expand...

You made your point that there is already a thread for this type of topic in post #2, and yes, perhaps merging the two at that time would've been appropriate, but it wasn't. Please accept that it wasn't and move on. It's not however, appropriate for you to keep posting here for the sole purpose of repeating that this should be moved. It's not going to happen. Accept it and don't post here again unless you want to discuss the topic at hand.

AssassinTuner,
personal insults are not acceptable here. Any more and I will make sure action will be taken to address the AUP violation.

If you two can't get on, there's an ignore button that each of you can use.
 
darren200cook
I have an RC Nitro car just like that one! Albeit with a Ford Focus WRC shell. I take it to an abandoned car park and pull off a lot of stunts, tricks and a lot of other cool stuff. Usually every weekend depending on the weather. Just don't like refuelling the thing. Burn't my hand once doing it. Though I keep it stock, maybe when I'm older I'll get a new base model and tinker with that
Click to expand...

Nice! It's hard to find good spots to open these babies up but awesome when you do. I have a 1/4 mile road that's nice and smooth to open up the high speed, the car is fully hopped up, only mods not done are the ones only for looks. She's hit 107klm/h so far.

The car is actually going under a big upgrade, I'm doing a rear exit exhaust conversion and going with a .21 engine. It's going to be ridiculous.

If your going to grab a second, let me suggest a Savage, they are insane. Go anywhere, pop wheelies, & go sick fast, 85klm/h out of a huge heavy truck, insane jumps huge air long distances, it's just a blast.

Here she is popping wheelies, but my gears are out of whack (launching in second gear. Made wheelies tough as launching in first would make it easier, the engine is making great power and with a huge CEN pipe, no wheelie bar, and launching in second, I was still able to pop some wheelies. This is the bottom end of Gallon 2 on this new OS30VG Engine, still has a great tight pinch.

The engine is getting swapped into the Hopped up chassis this week as my new FLM HD XL TVP's arrive. I also have a higher speed third gear thats getting installed as the tranny is rebuilt and swapped over. 2nd will be extended while 3rd will be adjusted on the road it will start 1/4 turn towards higher rpm to begin tuning. I'll also be running a 13 tooth clutch bell for added torque, while I stick with a hardened steel 52 tooth spur gear.

It should make for crazy bottom end tq with a insane top speed. Most importantly all useable power, not over or under done. The Truck already is ridiculously fast and will give pretty much any Nitro RC a run for his money.

http://www.youtube.com/watch?v=Gi0Mluknao4&feature=youtube_gdata_player

Some quick pulls while running rich slowly leaning out after break in.

http://www.youtube.com/watch?v=WulABx32C-k&feature=youtube_gdata_player

She's faster then that already, and will be even faster shortly :D
 

Yeah, that's a Savage XL

Ordering a ERCM pipe and a few more goodies to be added to the list. the Truck is Fast, and Blast out the Gate like a rocket.

As you can see, hitting third gear nicely and pulling through it, a higher speed 3rd gear is on it's way, and I have a 086HS pipe I'm going to compare with the CEN pipe I'm running now. The CEN performs great but is a heavy SOB. The 086 is serious for mid-high, the ERCM is full range.

This is in the relatively Stock Chassis, the Hopped up Truck will be running shortly.
 
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Sorry about that Bud. Thanks for fixing the link, posting YouTube links from the iPhone app is not my forte. Glad it's sorted.

She's one fast Truck, working on getting her faster & doing a porting job on a K4.6HO for a third Chassis I'm building out of leftover & spare parts.
 
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086 won't go on without a thinner gasket so I turned to modifying the CEN exhaust, man am I happy about that. I opened the muffler up and saw a horribly useless, performance hurting baffle that on top of all that makes the engine run hotter.

I know all this for certain as I had a session today that was a battle to get the engine running hotter than 230f. I had an exhaust leak and priming was a pain. This was because the baffle pressed the gasket in place so no baffle and the gasket wasn't tight enough.

I then used a high temp gasket making silicone to coat the actual gasket with, then screwed it all up tight. I couldn't run the Truck again as it started raining, but I'll get another vid up when it gets nice out.

I also picked up some SHD Threaded Piggyback Shocks for the Hopped up Truck

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Finished the new body, still a bunch of hop ups to install.

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Got the 086 running, I'm maxing out the Stock 3rd gear, waiting on the HS 3rd gear to arrive so I can max out the engine.

Almost halfway through Gallon 3 in the OS30VG, still a tight pinch, plenty of punch, revs & makes power up high. Seriously great engine for going Fast.
 
New video teaser released. I'm putting together a wheelie video, the clip is of one of the longest wheelies I've ever seen a Savage XL ride out. Close to 50yards on 2 wheels.

http://www.youtube.com/watch?v=wLWdtDMoqqs

Also, the new FLM HD TVPs have arrived, I installed them last night and I hope to get a lil time to run the Truck in the next few days.

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Tremor/Phaltlines should arrive on Friday :)
 
New bunch-O-stuff

Tires, a few goodies, and ohh, a LRP ZR.30 Competition converted to P/S to run in a Savage XL.

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Running a custom 2 kit bulkhead combo unique to this Truck. And 18mm offset extensions making her wider than a standard XL.
 

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