What is the best setup 8xl and warrior 9920
 

Hey guys. I just ordered a 8xl motor and warrior 9920 for my E-Maxx. I'm planning on running 20/66 gears at first and might adjust from there. I have 2 7 cell 4200mah batteries for it already. The write up on the controller says it will handle 20 cells so I'm tempted to add another 6 cell pack on. I'm just looking for a sick truck that can wheelie all the way down the street and has a great top end too. My question is will this set up handle 20 cells or should I stick with 14? And does anyone know what kind of performance I might be looking at with either set up? The rear end will keep the stock ratio for now since I just got finished building up both diffs.

it can handle the extra 6 cells no problem and the power would be awesome on 20 cells.

you will definately have some trouble keeping it on its all 4 wheels and it will probably end up on its roof some too

8xl on 14 cells=:)
8xl on 20 cells=:eek:

i agree that would be very scary and fast on 20 cells :eek: :eek: :eek:

When it was stock with 14 cells it would flip on command even in 2nd grear. Then I got a custom wheelie bar off ebay and would do wheelies for about 15 - 20 ft..... 3 times till the rear driveshft exploded! now I've beefed up the truck to take some power. A guy at work wants to race me with his little gas road car and I wanna stomp on him! LOL And if I can't I'm deffinately gonna drive right over his car. But anyways.....

I decided to change to the strobe clutch with mod 1 gears. Does 16/51 seem like a good setup or do you think I should go to 18/51? This will be my first bl setup and I don't know what kind of torque I will have with this. I was actually thinking of getting a HV-Maxx till I found this site and started reading all I could. All you guys talked me into something much better and didn't even know it!

I'm running 14/51 with a 9L and I should have went 15/51. I have a 7XL come right now. I'l be going 16 cells with 16or18/51 to start with. I think the 8XL should easily go 16-18/51.

14cells + 8XL = 40mph and big wheelies
20cells +8XL = 50+mph no problem and uncontrollable wheelies (you will need a steady finger, or lower the truck a lot).

Would be great on 16 cells. Great power and runtimes.

See that's the type of power I'm looking for. Sick power. Where people see it go and say "what the ....:eek: ". I just use it for fun bashing outside, I don't race with it so the wheelies are fine with me.

Let me ask one thing though, when it comes to the gearing, does anyone know how much of a change in top end 2 teeth up or down on the pinion makes? 2-3 mph? More? Less? I'm hoping 16/51 gearing will be right on the money cause I hate having to order parts and then wait a week to try it out. I just have no idea how much torque the 8xl will make on 20 cells. How would it compare to titians on 14 or the HV-Maxx?

I would guess a change in gearing would make a big difference with this set-up, both speed and temp wisee. You will have to watch controller temps with that motor on 20cells. I would think 16/51 would be a good starting point for this set-up, although someone else might correct me.

There will be ABSOLUTELY no comparison between an 8XL on 20 cells, and titans/HV-maxx on 14 cells. I hope you've got a strong driveline!

I hope the drivetrain will be ok. Will have strobe slipper, flm tranny case + idler gears, carbon steel driveshafts and axles, integy diff cases with flm diff cups and 3 mm screws, airtronics 94358Z steering servo, traxxas big bore shocks with team blue star progressive rate springs, aluminum custom wheelie bar, and rubber sealed bearing replacing all the stock ones everywhere. I left the rest of the truck stock as it seems pretty tough and light.

I do question if the rear diffs will hold up under prolonged use though..... anyone have any experience with a set up like this and breakage problems?:confused:

You CANNOT compare 20cells and a 8XL to a HV-Maxx. I run 14cells with a 7XL and the power is crazy already. Too much wheelies, just a shame with little speed.

I doubt the 8XL will have long runtimes on 20cells though. :(

Hey Nick, do you think 18 cells would be better than 20? I really don't feel like cooking $300 worth of parts by giving too much power. I'm gonna use 4200mah batteries so I was hoping for around 15 mins of runtime at least. The way I'm gonna set it up I can run 14 cells or 20. Does run time go way down the more cells you put on? I would have thought it was the other way around given a proper gear ratio. If the torque is too much I should just be able to get a larger pinion to compensate correct? I ordered 16 and 18t pinions with the 51t spur. Could always go higher as long as the electronics don't cook right? mmdooley, you will have to let me know how it goes on yours.

Maybe Mike can give me his input on this setup???? I think I need it.

well 20 cells would be just fine. just watch temps like maxxdude said. and if geared right you shouldnt loose runtime. also, 15 minutes with ib 4200s is easily obtainable.