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Old 02-09-2004, 03:40 AM   #1
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Default EXTREME RC MODIFICATION - Findings and Discussions

I am interested to know more about EXTREME MODIFICATION that you can do to your RC cars... or any RCs.

Here we can post all of the EXTREME MODIFICATION (or even CUSTOM BUILT) on the RCs... plus... we can discuss on
HOW to build it
WHAT is the result after the MOD
WHY the mod has to be done

So that we know our RCs can even do more than what we have right now....

i think this thread can be a quite exciting thread to read.... and to look!!!!

Come on and join me.... in the search of
EXTREME MODIFICATION OF RCs....
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Old 02-09-2004, 03:42 AM   #2
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Arrow 1st EXTREME MODIFICATION

i have found this EXTREME MOD in a video from http://www.frequency-rc.com/ . the video title is onroad...

i really want to know what kind of mod that has been done to this car and what is the result out of that mod.

anyone help me!







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Old 02-09-2004, 03:45 AM   #3
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Default 2nd EXTREME MODIFICATION

this picture is showing an RC (i dont know which brand)... but it is SURELY make my mouth open wide!!!!!

i really like the INTERCOOLER and all the pipes..... that we really do this to our RC cars?

IT IS A NISSAN SKYLINE...




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Old 02-09-2004, 09:36 AM   #4
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Performance gain v/s weight ?
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Old 02-09-2004, 09:50 AM   #5
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Default Performance gain v/s weight ?

Performance gain v/s weight ?

yup... maybe if you do the MOD you will add more weight to your car.... but....
MAYbe... becoz of your MOD is sooooo EXTREME... the additional weight that being added will not affect your car performance... due to the OVERPOWERING powerplant...

maybe also... the additional weight will make your car more stable (?) only my hypothesis.

SO.... anybody has done any EXTREME MODIFICATION on their cars?

anybody got any info about the CARS i have posted up there?

anybody got input? dont just view this thread.... just write something dude.... we are learning from each other.... no worry if your opinion is wrong.... somebody might correct you... be happy...


mop

Last edited by mop_iko; 02-10-2004 at 07:56 AM.
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Old 02-10-2004, 07:58 AM   #6
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WHAT KIND OF MOD YOU ALWAYS DO?

i am just curious... what kind of EXTREME MODIFICATION people always do?

engine?
chasis?
tyres?
body?
etc ?

and why they do that?
how they do that?

i need answers fast!!!!

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Old 03-03-2004, 08:54 PM   #7
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Default i found another extreme mod!!

these pics was given by LeeKoshin (one of our rctech member).


these are cool pics.

according to him it is SUPER CHARGER for nitro engine.

showing the super charger mounted on a YOKOMO gt-4


showing the super charger mounted on a Schumacher nitro fusion


i think these guys are used to do DRAG RACING instead of normal racing. the schumacher even use a BRS (break return spring) instead of normal TRS (throttle return spring).

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Old 03-03-2004, 10:58 PM   #8
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Pitty its not going to work on a 2-stroke engine, You would need a super backpressure pipe to give you a compression gain then it would work
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Old 03-04-2004, 12:24 AM   #9
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yeah!!!extreme mod....
If I have lots of SSG,a dremel tool and plenty of time,I can do lots of wonderfull stuff.
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Old 03-04-2004, 01:34 AM   #10
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Quote:
Originally posted by au_Nightmare
Pitty its not going to work on a 2-stroke engine, You would need a super backpressure pipe to give you a compression gain then it would work
IMHO, it will, work!! engine cycle type and combustion types does not affect the function of the apparatus, the differences are the effectiveness of it between engine types... and tuning difficulty level would be increased...

regarding the pipe,... it has to be free-flowing,... or it'll blow the piston & con-rod (at least) when it's not a free-flow exhaust system... (try to hold a fart after you had too many beans,.... results may vary,... but the common outcome is,............... boom, splash,...)


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Old 03-04-2004, 01:45 AM   #11
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Quote:
Originally posted by au_Nightmare
Pitty its not going to work on a 2-stroke engine, You would need a super backpressure pipe to give you a compression gain then it would work
IMHO, it will, work!! engine cycle type and combustion types does not affect the function of the apparatus, the differences are the effectiveness of it between engine types... and tuning difficulty level would be increased...

regarding the pipe,... it has to be free-flowing,... or it'll blow the piston & con-rod (at least) when it's not a free-flow exhaust system... (try to hold a fart after you had too many beans,.... results may vary,... but the common outcome is,............... boom, splash,...)


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Old 03-04-2004, 01:50 AM   #12
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How so? Exhaust and Intake ports are open at same time, forced induction like that will pressure crank more and just force the pressure out the exhaust.....? no?
Thats why exhaust has a pressure pulse, thats why length of exhaust (and hence timing of pressure pulse) effects where your power is in rpm range.

I can see how it would help a little as engine is not sucking air in but it would be nothing like you could do with a 4 stroke.
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Old 03-04-2004, 02:40 AM   #13
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Ok here is another Extreme modification from a friend of of mine.. he is currently selling this online now.




NITROUS OXIDE!!!!!!!!


and here is a custom anodised Head

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Old 03-04-2004, 05:55 AM   #14
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Quote:
Originally posted by au_Nightmare
How so? Exhaust and Intake ports are open at same time, forced induction like that will pressure crank more and just force the pressure out the exhaust.....? no?
Thats why exhaust has a pressure pulse, thats why length of exhaust (and hence timing of pressure pulse) effects where your power is in rpm range.

I can see how it would help a little as engine is not sucking air in but it would be nothing like you could do with a 4 stroke.
I can't see why the intake and exhaust ports are opening at (almost) the same time is affecting it (that much), unless the ports are modified (height and size)....

Force feeding a 2-stroke (and other types too) engine is commonly intended to let it breath easier so it could reach higher rpm than it should, in a much faster rate, not the compression increasing purpose,... as for 4 strokes, the elevated compression ratio is actually a condition "not desired" (that's why you should lower the comp. ratio by changing to low-comp. pistons, thicker gasket, etc,... in full scale, if the increase is desired, why should we spend so much to lower it?!?!), force induction was designed to let the engine to burn more fuel and O2 at the same combustion chamber size,... once again, the increase of compression is actually not desired (that's why we use intercoolers to keep the incoming air slightly, well,... cooler.... because cooler air has lower pressure but more O2 molecules,.. hot air,... vice versa....)

so, force feeding a 2-stroke maybe not that efficient (some will flew directly out of the ex. port, but it's do-able, as well as FI-ing a Wankel rotary,... please keep in mind, that it's not the comp. ratio increase that counts, but the extra air-fuel mixture

about ex. pressure pulse,... yes, it is highly affecting the powerband,.... IF naturally aspirated,... when we (me and my full scale mechanics) deal with FI,.. we throw away all things about backpressure, exhaust length, etc. the only thing we focus is, how to let the ex. gas go away quickly so the combustion chamber can be used ASAP for combustion cycle again,... without being too loud and illegal at the same time... (tell me why drag cars have oh-so-short ex. pipes?! like the 1090 HP Nissan Skyline w/ no boost limiting device... ) IMHO, when dealing w/ engines, try to look at it as a (super) glorified air pump,... that helps sometimes...


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Last edited by orangbaligila; 03-04-2004 at 06:10 AM.
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Old 03-04-2004, 06:00 AM   #15
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I agree with FI mod to glow 2-stroke engines,... but not the NO2 (nitrous oxide) idea,... simply too much heat,... I dunno,.. it might work,.. but if I have to choose,... I'll choose either Super or T-charge it..

btw, can I post pics directly?! I have some Turbocharged 1:10 scale in my notebook that I want to share

Thx
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