FG Baja 4X4 Competition TOP SPEED Question

Subject: FG Baja 4X4 Competition TOP SPEED Question Sun Feb 28, 2010 11:04 pm

I got a 4X4 FG Baja Competition. We are building a TS motor for it. I see on YouTube that some people are gettng these things up to 80 - 90mph+. Are they doing this with the 2-wheel Baja or the 4X4? Can you get the 4X4 to go that fast, and if so, what gear set should I use?

Thanks in advance for your help as I am a newbie at this...

RL

By the way, the TS is a 28.5 with a 1mm stroked crank.

Then it is a 29.5

The ones you see doing 80 & 90mph are running a big single speed set of gears, they are just 2wd and may have a speed diff and bigger pinion on the drive gear.
As for doing it with a 4wd, I have not seen one that fast, I have seen them run at our track, they seem ok, but I think your limited on swaping out the diff gear and going with a bigger pinion,,, if so, its gonna be kinda hard no matter waht motor you put in there to do 90.

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Subject: Re: FG Baja 4X4 Competition TOP SPEED Question Mon Mar 01, 2010 9:00 am

Forum member MiamiBaja has a 2wD setup that has pushed 90+ speeds. 4WD Is heavier, more moving parts, It will be difficult to attain such high speeds. You have a nice engine , try to remove as much weight from the car as possible.

Subject: Re: FG Baja 4X4 Competition TOP SPEED Question Wed Mar 03, 2010 7:17 pm

Pete,

I need that gear set that we talked about. I think that it was a 28/36. Is there anything faster that won't cause me to have to retrofit? Please send me an invoice so I can get it from ya.

Thanks

Subject: Re: FG Baja 4X4 Competition TOP SPEED Question Wed Mar 03, 2010 9:25 pm

rlindsay1 wrote:

Pete,

I need that gear set that we talked about. I think that it was a 28/36. Is there anything faster that won't cause me to have to retrofit? Please send me an invoice so I can get it from ya.

Thanks

That ratio won't work on a 4wd diff gear. The diff gear on the 4wd is way bigger than 2wd making you very limited to using smaller gears on it Mad

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THERES NO SUCH THING AS TOO FAST!

Subject: Re: FG Baja 4X4 Competition TOP SPEED Question Wed Mar 03, 2010 9:32 pm

1. What gear set can I use to get maximum mph (about how fast will that be? Estimated, of course.

2. Can I change the 2 speed to a 1 speed, then use the 28/36?

3. Any other suggestions?

4. Thanks for your help.

Subject: Re: FG Baja 4X4 Competition TOP SPEED Question Wed Mar 03, 2010 9:38 pm

MarderMan wrote:

rlindsay1 wrote:

Pete,

I need that gear set that we talked about. I think that it was a 28/36. Is there anything faster that won't cause me to have to retrofit? Please send me an invoice so I can get it from ya.

Thanks

That ratio won't work on a 4wd diff gear. The diff gear on the 4wd is way bigger than 2wd making you very limited to using smaller gears on it Mad

Sure it will, hes talking about a spur and pinion, not a diff gear, you can run the 28/36 on there.
Unfortunately I don't have them here, you can get them from him: [You must be registered and logged in to see this link.]

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Subject: Re: FG Baja 4X4 Competition TOP SPEED Question Wed Mar 03, 2010 9:41 pm

Thanks Pete,

I swear, i was about to start pullling hair out over here!! I will order them now. I guess I need to start looking for a used 4X2 FG Baja....

Thanks,

Subject: Re: FG Baja 4X4 Competition TOP SPEED Question Wed Mar 03, 2010 9:43 pm

lol dont pull any hair out!
There out there, you'll come across them when your not looking, thats the problem..
good luck

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Subject: Re: FG Baja 4X4 Competition TOP SPEED Question Wed Mar 03, 2010 9:48 pm

Thanks. I just ordered/paid for the "high speed" gearset over t BigRCParts... I will let you know what speed i get this thing up to.

Subject: Re: FG Baja 4X4 Competition TOP SPEED Question Wed Mar 03, 2010 9:58 pm

Do me a favor and put a GPS or radar gun and post up your speed, maybe a video!!
Good luck with it, let us know what you get out of that 4wd..

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THERES NO SUCH THING AS TOO FAST!

OK. It appears that most people drag race with 5B's instead of FG Baja's (4X2). Is there a reason for that?

Last edited by MarderMan on Thu Mar 04, 2010 1:43 am; edited 1 time in total

No, you have it wrong

More people drag race the FG Baja/Marder than the HPI Baja because the FG offers 2 speed and they are alot lighter than the HPI Baja. Now that BigRcparts have the 2 speed coming out, it will be a very good race What a Face

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THERES NO SUCH THING AS TOO FAST!