MasterSbilt RR spring

[racer241]

The team i run for has two masters smackdowns, one 09 from mars 2" round and an 08 1 3/4" square. We are still fairly new to the cars but really like the way they are working. Our problem is the left front lifting pretty high on both cars even in the dry. The tire stays barely on or very close to the track, the handling balance on both cars is great just don't care for the lack of visibility. Both have 250lbs RR springs just wondering if going stiffer ( say 275 or 300) could help this and not hurt the balance of the car too much??

[Egoracing]

A stiffer RR may losen the exit, what are the other springs and when is it lifting the LF, when you enter or only on the gas or only off the corner?

[MasterSbilt_Racer]

How much rr travel are you getting? RF travel?

What are the rest of the springs? How is corner entry? 5th coil spring and distance from center of axle?

250# should be plenty of rr spring

[Matt49]

Weight Percentages???

[racer241]

here are the springs on the cars: Rf 400 Lf 500 Lr225on one car and 250 on the other Rr250
the 08 has a 350lbs 5th @35" (the 08 is slightly worse about the carrying)
the 09 5th is 300 @ 36"

percents: 09 left:53 rear 55
08 left:53.5 rear 56-57
the entry is great on both cars initial throttle hikes smooth then it feels like the RR gives out and it squats on it making it tough to see exiting especially on flat track. It isn't like looking at the sky but it would be nice (and safer to race) to keep it down. especially because we haven't put them on really tacky tracks yet and it is already doing it in the dry some

[racer241]

we havent done the travel yet but they both have nice nose down entry, especially the 08( have the LR brake on the birdcage)

[MasterSbilt_Racer]

How much drop is your limiter set for?

[racer241]

How much drop is your limiter set for?

both cars are traveled to just under 13" so about 12 3/4" or so. both have max dynamic LR upper angle of 45deg.

[Matt49]

Moving the 5th coil back may help you some. Our car tends to hike the front a lot more the further we have the 5th coil out.

[MasterSbilt_Racer]

Moving the 5th coil back may help you some. Our car tends to hike the front a lot more the further we have the 5th coil out.

I would probably look there first. Anything else that would work will certainly change the handling of the car.

[grt74]

I would also look at the rr top bar if you lower it to much it will cause this also so you might raise it a hole but it will free you up on exit a little so you might have to tighten it up somewhere else jmo

[35racing]

Ive had this issue before and was told to check my rear end location and make sure drivers weight was in the car when checking. 15 3/4" from 90/10 plate to center of RR frame rail. Mine was off and after fixing it seemed to help... I guess its worth double checking.

[dchamp3]

5th arm shock should be at 34'' ,the rr top bar should be one above neutral and looks like the rear % on the 08 car is a little high back it down to 54-55% and what about the rebound in your front shocks.

[racer241]

We can back down the rear weight, we do have plenty of lead behind the driver seat to make our series limit. The 08 has Integra canisters and the RF was full close on rebound the last run out .

[racer241]

Hey 35racing which way was your rear end off ?