baja specialist
Well-Known Member
As far as I know they are racing the turbo Mav's at the 500. But they have to run a stock ECM issued by SCORE at tech.
Baja 500
- Thread starter baja specialist
- Start date
badassmav
Well-Known Member
Does the turbo mav share the same tranny as the prior ones? I know that up to the end of last year, the only available mod that brp had gear ratio wise was a 37 tooth replacement pinion gear for the stock 36 tooth gear in the transmission. Marc wanted to try it out, I believe it was in the baja 500, and it was a slug. We couldn't even pull the stock shorter gear, so I wasn't sure what he was thinking. Point is, that the tranny labored a lot more with that extra tooth on the pinion. Perhaps they ran that set up.
Regarding the rpm of the tranny output shaft, it is way below what you were thinking. On the BAM, with 30" tires, stock tranny gear, and stock 1.36:1 diff ratios, our driveshaft rpm at 75 mph was only 3,300 (3,300 rpm/3.6 gear ratio x 7.27 tire rolling radius/5,280 feet per mile x 60 minutes in an hour = 75 mph. This data was crucial for me as we ran the alternator off of the driveshaft, and I needed to know at what speed the alternator would kick in. I believe it was at 16 mph the alternator began producing at 25 amps, and by 40 mph, it was pumping out nearly 80 amps. We were at about 100 amps at 75 mph, if my sloshy memory serves me correctly.
I am sold however, on fresh Trans and diff oil each race with well placed breather vent tubes. Lucas oil, synthetic racing, straight 140 wt. in the trans, and straight and gooey 250 wt. in the diffs. The new turbos have a more effective clutch than we had in the BAM, so youd know more than I whether that helps or hurts the situation. Thanks to the sabatuers at BRP, we never got to try one. Those knuckleheads just didn't like me, and our equipment was inferior as a res
ult. Hell, they may as well have teamed up with Wiley Coyote and changed the course markings just before we went by!
Man, I'm really turning into a whiner in my old age. Last year's winner, this year's whiner!
Regarding the rpm of the tranny output shaft, it is way below what you were thinking. On the BAM, with 30" tires, stock tranny gear, and stock 1.36:1 diff ratios, our driveshaft rpm at 75 mph was only 3,300 (3,300 rpm/3.6 gear ratio x 7.27 tire rolling radius/5,280 feet per mile x 60 minutes in an hour = 75 mph. This data was crucial for me as we ran the alternator off of the driveshaft, and I needed to know at what speed the alternator would kick in. I believe it was at 16 mph the alternator began producing at 25 amps, and by 40 mph, it was pumping out nearly 80 amps. We were at about 100 amps at 75 mph, if my sloshy memory serves me correctly.
I am sold however, on fresh Trans and diff oil each race with well placed breather vent tubes. Lucas oil, synthetic racing, straight 140 wt. in the trans, and straight and gooey 250 wt. in the diffs. The new turbos have a more effective clutch than we had in the BAM, so youd know more than I whether that helps or hurts the situation. Thanks to the sabatuers at BRP, we never got to try one. Those knuckleheads just didn't like me, and our equipment was inferior as a res
ult. Hell, they may as well have teamed up with Wiley Coyote and changed the course markings just before we went by!
Man, I'm really turning into a whiner in my old age. Last year's winner, this year's whiner!
the stripping shop
RACER - UTVUnderground Approved
what happen to the other s3 car I believe the dad drives it.
the stripping shop
RACER - UTVUnderground Approved
So now that you are allowed to talk what machine would you choose to desert race, since you are not being paid.
Blue Coyote
Member
BAM is spot on about the trans oil. We run 75w140 Lucas full synthetic-and at 60hrs it came out black and stinky. Good news is a tiny bit of fine shavings on the magnetic drain plug., and the oil did not have a metallic appearance. Have never had that happen to Lucas gear oil before. Maybe that there is only 16oz in there does not allow for much cooling. Trans oil will now get changed with the engine oil.
And may consider the tungsten disulfide additive as well.
Sent from my iPhone using Tapatalk
And may consider the tungsten disulfide additive as well.
Sent from my iPhone using Tapatalk
badassmav
Well-Known Member
Well, I would have to go with the Mav, as long as it's a 4 seat chassis. That way, I could take advantage of the motor location and build in quick access to the clutch. It's hard to deny the support that is available from polaris though. In the short time that I was involved with their brand, they really impressed me with the accessibility of their engineers, and the knowledge they possessed. Hard to believe that the same group of engineers thought that plastic bearing cages would last in a differential, or that a driveline with u joints not properly clocked and at indifferent working angles and floating rear driveshaft wouldn't prove to be troublesome. The Can am is by far the better engineered car. The Arctic cat guys got it right with their front suspension, but the chassis is not well thought out, not to mention too lightly built. In the end, any good builder can build a winner from any of the three manufacturers. To be honest, and I always am, I could've scaled the mav back quite a bit, and with what Marc brings to the table, we still would've taken the championship.
SimsMotorsports
Factory Polaris #1913
I am teamed up with Johnny for this years running of the Baja 500 (and the entire SCORE series). We have established a great team and friendship through racing as teammates. I can say that we will be more prepared than we have been previously and we are coming for that 1st place trophy. I am super excited for this and can't wait to get down there.
baja specialist
Well-Known Member
I am really looking forward to racing against you guys along with the rest of the field. I am really excited Coming into this class because it has so much competition.
george.felix
George
For a second there I thought this was a dating site..... Lol So if this was Vegas who would be the favorite do ya think? Actually someone ought to make book on these races would be more interesting. I'm guessing you like Utv Inc or ?
george.felix
George
So what would the odds be for Utv to finish first or podium? What about the others ?
the stripping shop
RACER - UTVUnderground Approved
jaggy with Brandon driving
baja specialist
Well-Known Member
I would think UTV INC and Jagged X given the recent history would be the favorites. But I could be wrong.
george.felix
George
How about your top 3 teams to podium and your favorite to win.
Jagged cuz their steady every race
Utv because they have the nicest chase trucks.
Nygren LSR been steady and Dan finished most races
McFarland, Wilson front runner at 500 Sur, Murray bros, Sappington if he can pack enough belts, Lambert but new car could be good or not, Burnett too many issues this year maybe it's time, the rest of the field I don't know could be some contenders there. I'd say Utv and Jagged 2:1 odds to podium...call it even.
Anyone care to pick long shot?
Jagged cuz their steady every race
Utv because they have the nicest chase trucks.
Nygren LSR been steady and Dan finished most races
McFarland, Wilson front runner at 500 Sur, Murray bros, Sappington if he can pack enough belts, Lambert but new car could be good or not, Burnett too many issues this year maybe it's time, the rest of the field I don't know could be some contenders there. I'd say Utv and Jagged 2:1 odds to podium...call it even.
Anyone care to pick long shot?
BiggJim
I Hate Rules - UTVUnderground Approved
we aren't racing a new car at the bj500
baja specialist
Well-Known Member
I might have a biased opinion on picking a winner. LOL.... I was just giving you my opinion on who everyone thinks the favorites are given past races and results.
Long Travel Ind.
Human Welding Machine - UTVUnderground Approved
I think Burrnett has gotten rid of the "new car" bugs and will put it on the podium, just my .02 cents
Long Travel Ind.
Human Welding Machine - UTVUnderground Approved
oh yea and the suspension to do it with 
