Mah resitrictions

[T.S.Davis]

Okay, this will be fun. Brian's first "what fer?"

I know why we included MAH restrictions back when the Lipo cells were proposed. That limit was included to appease the doom and gloom "we're all gonna die" gang. Some also thought that all classes would be dominated by massive mah. IMPBA went with max charged voltage but no mah limits. So if you had a pair 5200's for a class you were still fine but if you race NAMBA.....hosed. Best I can tell, it hasn't made a lick of difference to IMPBA. I asked and I've raced both organizations.

http://forums.offshoreelectrics.com/....php?53696-Mah

See....I did ask.

My opinion has changed over time. I was the anti-big mah camp. All I could see was the cost of 2P and a speedo that could turn a million amps. Tech has evolved and become much more accessible. I think now that with the length restrictions you can only carry so much weight before you've built a submarine instead of a boat.

So does anyone have a legitimate reason to limit NAMBA class mah? Has anyone ever checked it at a race? What a pain in the a$$ if we did.

Is it time to move on from mah limits in NAMBA? Opinions welcomed.

[JimClark]

if you could use 10000 mah you could get 2 heats on one pack therefore cutting down your charging and number of batteries .hough the first run would probably be better than the second run.

[RayR]

Terry,

i have recently been thinking about the same thing. Many batteries now at 5200 and greater. 2p puts us over the 10k limit.

[Doby]

Ditch the limit....theres no way anyone would use 10000mah in a six lap heat...if people want to carry more (and more potential weight) , who cares...if anything it will just keep batteries happier.

[Doug Smock]

So does anyone have a legitimate reason to limit NAMBA class mah? Has anyone ever checked it at a race?

Is it time to move on from mah limits in NAMBA? Opinions welcomed.

No, no, yes.
I'm glad you brought this up Terry. As you know Don and I had to re tool to race the Michigan Cup last year.

You're right about racing in the IMPBA, capacity hasn't been an issue in any way shape form or fashion.

I'd love to see it go away before the Michigan Cup. I really hated putting Zippy labels on my Hyperion batteries last year.

[T.S.Davis]

I used to get it but not so much anymore. It's just something else to think about when choosing batteries too. I like to pick cells I can use for a bunch of classes. 5600mah packs would be really versatile.

[T.S.Davis]

Doug, I'll give you a call on my way home.

[JimClark]

I looked at 10000 mah 4s and 5000 mah 4s the 10K are about 8 ounces heavier

[Brushless55]

Terry,

i have recently been thinking about the same thing. Many batteries now at 5200 and greater. 2p puts us over the 10k limit.

Agreed..
makes the 10k limit hard to do with the new labels we see on our packs ... some not all

[Greg Schweers]

When NAMBA switched from 4.20 to 4.23. A 5000 pack is basically a 5100 to 5200 mAH. If you put 2 5000 packs in parallel, you're basically running 10200 mAH. So you might as well just throw out the milliamp rule.

[photohoward1]

IMPBA does have a weight limit though. 24#. You quickly come up against it in an open 10s boat. So for the larger boats there is a Sudo limit. Terry while your at it what about the new HV batteries? How are clubs handling that issue? I have club guys buying them and then I explain if they travel they can't use them.


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[TRUCKPULL]

Terry

What about Offshore classes.

We will end up with Full "P" & "Q" ETC boats with larger capacity batteries to get 4 1/2 Min..

Or a 36" cat with twins and 10,000 per motor???????

I have been fighting for almost a year to make my twin "P" Cat run on 10,000 max for Offshore - 4 1/2 Min.
I finally got it running at about 55 to 58 for 4 1/2 min. using about 90% of 10,000.

Larry

[T.S.Davis]

Doug, what does IMPBA do with twins? That's the only hang up I can think of. A 39" cat with twin 1527/1y and 10k per side would be madness.

[T.S.Davis]

For that matter, how about a twin Ricco Superboat? Might be tough to get under the weight limit though.

[TRUCKPULL]

Terry

In IMPBA any number of motors are allowed in "Q" and above.

Also in IMPBA they do not run Offshore the same way as we do in NAMBA

At all of the races that I have attended in IMPBA, they set an Offshore coarse up and run like 8 laps,
So it is not the same as trying to run 4 1/2min. on 10,000mAmp's in NAMBA

Larry