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HPI Sprint 2 Sport upgrade question!

Old 02-16-2012, 12:26 AM
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khkim0102
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Default HPI Sprint 2 Sport upgrade question!

Hi!

I want to upgrade my HPI Sprint 2 Sport with a brushless system.

HobbyPartz offers some choices as the following.

This BL system seems to close to the HPI's Flux BL system in terms of KV rating, since the HPI Flux BL motor is 5900 KV. Here is the link. http://www.hobbypartz.com/ez-60a-rc-...ar-system.html

However, HobbyPartz web-site says that this BL combo is for "OFF-Road racing."

And Hobby Partz says that this BL combo is for "ON-Road racing for experienced drivers." But the KV rating of the motor (4300 KV) is much lower than the HPI Flux's 5900 KV. Here is the link. http://www.hobbypartz.com/ezrun-35a-9t-3650-motor.html

I don't know [&o]which one is a better choice for upgrading the HPI Sprint 2 Sport. If anyone give me an advice, it will be greatly appreciated! Thank you!
Old 02-16-2012, 02:08 AM
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dragnse7en
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Default RE: HPI Sprint 2 Sport upgrade question!

Uhhh

Get A CC MMP with a 4600Kv motor instead!!!
Old 02-16-2012, 10:46 AM
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khkim0102
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Default RE: HPI Sprint 2 Sport upgrade question!

Do you mean a Castle Creation?

If so, it is out of my budget.

I do parkinglot bashing, so that I am considering this inexpensive Hobby Wing BL combo. Thank you anyway for your response!

Any other advices from the others?
Old 02-18-2012, 05:54 PM
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khkim0102
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Default RE: HPI Sprint 2 Sport upgrade question!

Isn't there anyone who can give me an advice? Since posting this question, one guy gave me an indirect answer. If anyone can answer my quesion, it will be greatly appreciated!

Thanks!
Old 02-18-2012, 09:00 PM
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t9dragon
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Default RE: HPI Sprint 2 Sport upgrade question!


ORIGINAL: khkim0102

Isn't there anyone who can give me an advice? Since posting this question, one guy gave me an indirect answer. If anyone can answer my quesion, it will be greatly appreciated!

Thanks!
I think he gave you his opinion so how could that be an indirect answer?

I would have to agree with either get a Mamba Max Pro 4600 setup or get the Flux 5700 setup or even a Sidewinder 4600 setup or even a Speedpassion setup would be a good choice.
Old 02-19-2012, 07:49 PM
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rufus2000
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Default RE: HPI Sprint 2 Sport upgrade question!

Get the Hobbywing 60 amp version (the first one).
Since it costs the same as the second one you may well get the more powerful system.
hobbywing makes very inexpensive, very reliable ESCs. the ez-run is their sensorless entry level escs, while the xerun series are the more expensive higher end more programmable esc's with support for sensored motors. They're the manufacturers of the speed-passions too.
Old 02-19-2012, 07:50 PM
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rufus2000
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Default RE: HPI Sprint 2 Sport upgrade question!

sorry, double post
Old 02-20-2012, 10:03 AM
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khkim0102
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Default RE: HPI Sprint 2 Sport upgrade question!

Hi, Rufus!

Thank you very much for your answer!

Well, I know that Castle Creation, etc. are better than Hobby Wing, but I am looking for an less expensive one, since I do parkinglot bashing once in a while. Also I have Hobby Wing BL system for my little daughter's 1/16th Kyosho Mini-Inferno, and this BL system has been running great. As a result, I have been considering a Hobby Wing BL system.

Anyway, thank you again for your answer!
Old 02-20-2012, 04:04 PM
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khkim0102
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Default RE: HPI Sprint 2 Sport upgrade question!

Hi!

I have a question. For 2-cell Li-Po (5,000 mAh), which BL combo works better? The 6000 kv one or 4300 kv one?

Thank you for your attention!
Old 02-24-2012, 03:54 PM
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Uncle Vinnie
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Default RE: HPI Sprint 2 Sport upgrade question!

I have a question. For 2-cell Li-Po (5,000 mAh), which BL combo works better? The 6000 kv one or 4300 kv one?
What do you mean what BL combo would work better?????
It would work on both just fine, I'm not sure what your asking.

On the 4300 you would get longer run times but less power.
On the 6000 you will get less run time, but a lot more power.

What do you plan on doing??????
Bashing either one works great, the 6000kv will be a lot faster, get ready to break parts, do a lot of flips, etc, etc..

I have a 5700kv on my car did 59mph with the right gearing and 3 cell.
I hope you get the steering slop fixed and have the right toe, camber, etc, etc otherwise you'll just be flipping the car, yes always flipping
Old 02-29-2012, 01:59 PM
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khkim0102
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Default RE: HPI Sprint 2 Sport upgrade question!

Hi, Uncle Vinnie!

Thank you for your answer!

I haven't been to this web-site for a while with my busy work, and now I see your posting.

In fact, you gave me good answer.

I enjoy running my HPI Sprint 2 Sport in the parkinglot, but I feel like it is too slow. So I want to increase the speed with a BL system. I guess the speed of HPI Sprint 2 now is 20-25 mph. If I can increase it around 45 - 50 mph, it will be good enough for parkinglot bashing.

I don't mind using 3-cell, but I guess 2-cell (5,000 mAh) would be enough for parkinglot bashing. So my question was that "with 2-cell li-po, can a 4,300 kv motor achieve 45 mph or do I need 6,000 kv to achieve 45 mph."

If you can give me further comments that I need to know, it will be greatly appreciated! Thanks again!
Old 07-23-2012, 07:12 PM
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digitalsmithy
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Default RE: HPI Sprint 2 Sport upgrade question!


ORIGINAL: Uncle Vinnie

I have a question. For 2-cell Li-Po (5,000 mAh), which BL combo works better? The 6000 kv one or 4300 kv one?
What do you mean what BL combo would work better?????
It would work on both just fine, I'm not sure what your asking.

On the 4300 you would get longer run times but less power.
On the 6000 you will get less run time, but a lot more power.

What do you plan on doing??????
Bashing either one works great, the 6000kv will be a lot faster, get ready to break parts, do a lot of flips, etc, etc..

I have a 5700kv on my car did 59mph with the right gearing and 3 cell.
I hope you get the steering slop fixed and have the right toe, camber, etc, etc otherwise you'll just be flipping the car, yes always flipping
Hey Vinnie, i have a 5900kv and i'm not coming close to that (all stock) i need to know your setup! gearing that is

-Vince

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