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Ofna 053 Pipe
- Thread starter ZANDOR
- Start date
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Buggyracer28
Hardcore RCTalk User
If you want low end go with a JP-1.
Tarant
Hardcore RCTalk User
Both it is a Bottom and Mid range pipe.
I have the 063 and i can use the stock header to get low end or use a high flow header and I get more mid-upper.
I have links to both pipes but my link button is not working.
063=bottom end
053=bottom-mid range
I have the 063 and i can use the stock header to get low end or use a high flow header and I get more mid-upper.
I have links to both pipes but my link button is not working.
063=bottom end
053=bottom-mid range
Tarant
Hardcore RCTalk User
I would say so, every time I have seen someone run a 063 and 053 with the same engine (.21) and buggy (Hyper PCR)both pipes brought out the bottom more then any thing else.
The discription on the 053 is bottom-mid end, but I have never really seen a big difference in the 2 pipes. mid seems to be the same. and if a different header is used you can influence the pipes power band a bit.
The discription on the 053 is bottom-mid end, but I have never really seen a big difference in the 2 pipes. mid seems to be the same. and if a different header is used you can influence the pipes power band a bit.
HeartBreak
RCTalk VIP
I've done alot of searching, and every site I've come across has it (the 053) as a mid-range pipe. Personally, I don't have one (the 053), but I do have the 063. From what I have read (providing its true), I'm glad I got it, for the low end.
HeartBreak
RCTalk VIP
The engines' a VZR-II Turbo in an MBX5 Prospec (aluminum clutch with heavy springs. The clutch has a super-late engagement compared to what I'm used to). By the time the clutch engages, the low-mid of the 063 should be just fine.
I do, however, plan on investing in a 53 and 86, just for tuning options.
edit; why can't Ofna just call their pipes what they are? The 053/063 numbers confuse the snot out of me too.
I do, however, plan on investing in a 53 and 86, just for tuning options.
edit; why can't Ofna just call their pipes what they are? The 053/063 numbers confuse the snot out of me too.
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Well,
As far as pipes go in the real world, from 1/8th buggies to Harleys, to Big Block Mopars, I know exactly 1 thing for sure:
The exhaust system that performs the best in each application depends more on that particular engine and less on the manufacturers recommendations.
I ,apparently, am the cause of this controversy, by asking opinions on the Ofna 063 for a mach 28 engine.
I didn't intend to cause an uproar. I did however ask for opinions "if you have experience with this exhaust system" , so far, only two opinions have been given in these 2 threads from people with experience with the 063, or at least said so.
Jeep
As far as pipes go in the real world, from 1/8th buggies to Harleys, to Big Block Mopars, I know exactly 1 thing for sure:
The exhaust system that performs the best in each application depends more on that particular engine and less on the manufacturers recommendations.
I ,apparently, am the cause of this controversy, by asking opinions on the Ofna 063 for a mach 28 engine.
I didn't intend to cause an uproar. I did however ask for opinions "if you have experience with this exhaust system" , so far, only two opinions have been given in these 2 threads from people with experience with the 063, or at least said so.
Jeep
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HeartBreak
RCTalk VIP
Jeep said:
No uproar from me, however, here's a thousand words for ya....
That "1000 Words" pic makes me feel alot better about what I'm going to pull out of my mailbox tomorrow, HeartBreak!
Thanks!
I'll post here in about 2-3 days to let ya know how she did with the 063.
Jeep
Thanks!
I'll post here in about 2-3 days to let ya know how she did with the 063.
Jeep
HeartBreak said:
I agree,,,ALL pipe manufacturers could use a standard:
like: LESB,,,Low end small block,,wait, that's too close to socially incorrect!,,lol
then MRSB, then HESB, then LEBB, MRBB, HEBB,,,I think the abbrevs are obvious
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HeartBreak
RCTalk VIP
No prob. I've yet to compare it to an 086. I went with the 063 simply because of the clutch setup that came stock on the car. I'm curious to see what a midrange or even a mid-upper would do on a late-engagement setup. It would probably shift the powerband up above the clutch engagement, rather than just below it.
Things are definately more confusing now than a year ago; a year ago I thought 'a pipe is a pipe is a pipe'... Now I've learnt the difference between this type and that type... oi, makes me go crosseyed thinkin about it...
Things are definately more confusing now than a year ago; a year ago I thought 'a pipe is a pipe is a pipe'... Now I've learnt the difference between this type and that type... oi, makes me go crosseyed thinkin about it...
Revo Rancher
Hardcore RCTalk User
I held back comment because of what Jeep noted. Each engine needs and responds differently to each pipe. To lump them all together for ALL .21 and up is a disservice to their capabilities. I consider the 063 a mid pipe as it improves a broad spectrum of .21 and up engines' mid and low ends.
HeartBreak
RCTalk VIP
Revo Rancher said:
Exactly. I've also learned in that rather short amount of time that the pipe needs the EXACT amount of stinger on it that came from the factory. Cutting it off or lengthening it changes its' backpressure characteristics.
I learned that the hard way after buying a pipe that had a hacked-off stinger. Made the engine completely untuneable.
If I may add this:
As I said, i'm totally new to RC nitro engines, but I'm far from new to how an exhaust system relates to the performance of an engine in general.
It's not about the amount of flow, it's not about the "back-pressure", it's not about sound. That much should already be known to any real engine tuner.
What it truely boils down to is: eliminating reversion pulses seen in the exhaust flow that may interrupt exhaust gas flow and velocity throughout as wide a range of RPM's as can be accomplished.
This is defined somewhat more simply than it can be resolved.
The ideal exhaust is a tube from the exhaust port to the atmosphere such that it carries an exhaust pulse all the way to the end of the exhaust tube and the exhaust tube never experiences a "reversion" pulse from idle to full throttle,,,,sorry to say, but that "single system" doesn't exist yet.
The volume and velocity of that pulse is dictated by many factors, bore, stroke, heat, RPM, intake port size and efficiency, exhaust port size and efficiency, load, vacuum, throttle position/load instance,,etc,,,,etc!!!,,,,.
All I asked was, "who here had experience with the ofna 063? and how it performed"
I would also like to know the engine it was on.
BTW, the term "back-pressure" is a mis-nomer, it is simply a by-product of a very well tuned exhaust system, as some restrictive pressure is required to maintain a high exhaust velocity.
much like mostly capping your thumb over the open end of a garden hose, you restrict the flow, but the flow velocity increases, you can then water flowers many more feet away
Jeep
As I said, i'm totally new to RC nitro engines, but I'm far from new to how an exhaust system relates to the performance of an engine in general.
It's not about the amount of flow, it's not about the "back-pressure", it's not about sound. That much should already be known to any real engine tuner.
What it truely boils down to is: eliminating reversion pulses seen in the exhaust flow that may interrupt exhaust gas flow and velocity throughout as wide a range of RPM's as can be accomplished.
This is defined somewhat more simply than it can be resolved.
The ideal exhaust is a tube from the exhaust port to the atmosphere such that it carries an exhaust pulse all the way to the end of the exhaust tube and the exhaust tube never experiences a "reversion" pulse from idle to full throttle,,,,sorry to say, but that "single system" doesn't exist yet.
The volume and velocity of that pulse is dictated by many factors, bore, stroke, heat, RPM, intake port size and efficiency, exhaust port size and efficiency, load, vacuum, throttle position/load instance,,etc,,,,etc!!!,,,,.
All I asked was, "who here had experience with the ofna 063? and how it performed"
I would also like to know the engine it was on.
BTW, the term "back-pressure" is a mis-nomer, it is simply a by-product of a very well tuned exhaust system, as some restrictive pressure is required to maintain a high exhaust velocity.
much like mostly capping your thumb over the open end of a garden hose, you restrict the flow, but the flow velocity increases, you can then water flowers many more feet away
Jeep
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