HPI RS4 3 Evo+ Mod w/ Savage XL .21 Tuned Alum. Exhaust ! Part 1 - Premium97 Racing

Custom Modds: Presented by Premium97
HPI RS4 3 Evo+ Modded with .21 Savage XL Aluminum Tuned Exhaust !!(Authentic Mod first time with RS4 3 Evo+)
Original .12 -.15 Exhaust was taken out and .21 Savage XL Exhaust put in Place!! There is a huge difference in the 2 Exhausts with lots of compression from the .21 Exh...this video is just on 1/4 throttle where I am holding the camera on one hand and transmitter on the other...This Modification adds some huge powerful torque, while this was only a quick short bursts of 1/4 to 1/2 throttle as demonstrated.
1st Gear (19T) & 2nd Gear (23T) , Spur Gears are Stock.
.21 HPI Coupling Used. O'donnell 30% Fuel Used.
T3.0 Stock HPI Engine...Next Mod is OS .18 CV-R with V-One-RR Exhaust Pipe Header....Stay Tuned....Enjoy!!

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[Harvz78]

What engine mount are you using?

[Premium97]

@Harvz78 Engine Mounts are Part No. "HPIA915" - 20mm Eng Heat Sink/ for Pull Start. You can look up the part No. on Hpi's site.

[dahockeydude]

hey thats a cool mod.

but you have just bumfucked your engine by revving it with no pressure/resistace on it's wheels.

It means that it transfers too much energy through the con rod which can snap.

I'm hoping to do a twin engine modd with a savage fuel tank and now that ive seen your video im going to use savage exhausts too :)

[Premium97]

@dahockeydude this engine is over 3 years old...it's been broken in way long ago. This was only quick short 1/2 throttle bursts...this baby can ripp at full speed. Looking forward to ur twin engine mod...

[dahockeydude]

@Premium97 all the same it's not good for the health of your engine. And yeh people who break the cars in by holding them in the air and revving it are seriously retarded.

yeh ive sort of run out of money at the moment, but once im back at uni im hoping to get the parts custom made to fit the chassis.

if you sub u'll see more of my RC and airsoft videos

[Premium97]

@dahockeydude I have another video up showing the RS4 3 Evo+ with Tuned .21 Savage Alum. Pipe in Action...Enjoy! - Premium97

[dbest1a]

I used to love the rc cars, now I am not to fond of them as I don't like how the underside always scrapes on everything... rc trucks for me now.