[goglahey]

Hi All

The specs that i found:


Agni 95
72v
400a
24kw
50nm
6000rpm

D135RAG
96v
400a
34kw
40nm
4032rpm


For pure drag power what would you think would win?

Regards Allan

[80N541]

two agni 95 renforced ^^
what is your project? bike? motorbike? car?

[Jozzer]

here's the answer, around 4.5 mins into this video you can watch a twin agni powered bike vs a twin lemco bike on a drag strip. Should be noted that the winning bike was Cedric Lynches TT bike, with a very large battery, whereas the white bike had a lightweight LifePo4 pack.

Cedric is riding this himself..

The Agni can also take a higher voltage, which would boost its HP a little, 84v is still within spec at top speed.

[kek_63]

Methinks you forgot a link, Joz!

[Jozzer]

DoH!

http://www.youtube.com/watch?v=F4_6hxycShk

[kek_63]

Cool vid - thanks.

Had to cut and paste the link - otherwise it goes nowhere for me.

Later,
Keith

[goglahey]

Nice thanks for the vid

Do you know the times?

/Allan

[Jozzer]

Yes indeed,


Agni 14.147 speed 93.19

Electric motorsport (AC motor) 15.742 speed 83.33

LifeBatt Drag bike (Twin Lemco's) 15.336 speed 76.452




Steve

[LiFeBATT_UK]

Hi Guys,

I would just put in that my bike, the white one, used two D127 running on 72V each motor and was doing 76mph for the final third of the track

We still haven't got the gearing right, due to lack of testing

Also, the first race that day we beat Cedric by 0.8 seconds.

Our best time being 14.998 93mph, when we were geared for 130mph top end. We just don't have the right sprockets yet to get the bike dialed in. An experienced US drag racer has recommended a 95mph gear should get us in the high 13's. But we will have to wait until April 2010 to find out.

The DRAG135 will peak at just over 4,000 rpm on 96V, the D127 peaks at 3,600rpm.

Also, the figures you quote for the DRAG is 40NM at 200A but you quote the Agni torque of 50NM which is the 400A rating. At 400A the DRAG will do 80NM, 60% more?.

The extra 2,000rpm potential on the Agni will definitely come into play, but I think it could be close and a lot of fun trying out these different motor configurations on the track.

Anyone got a spare pair of DRAG's, I'll supply the batts!

Ian

[goglahey]

Thanks for the info.
It does look like there is no peak rating at 400am for the nm:
http://www.lmcltd.net/uploads/files/130_table.pdf
I missed that part.

10kw and 30nm is quite a bit more, but i dont know how the 2000rpm will affect the outcome. More top speed?

If this formula from the nuwiki is correct then:

Hp=(torque*RPM)/5252

57,12 =(50*6000)/5252
61,41=(80*4032)/5252

Then the DRAG135 should be the most powerfull.

Both motors was designed by Cedric right?

80n541: Im still on the drawingboard for a Street legal atv

Regards
Allan