HarKonnenD

iTrader: (23)

I wasn't much into setups n stuff when I was learning about the MRX4 swapping rear blocks n such, but I seen many people using the 4.5 in the rear and that is what I went with along with the kit setup. Personally I like the setup. My local track is permanent, and the other one was made: cleaned up lot, layed down asphalt and really smooth. Traction is pretty good on both as I never had an issue with that.

munrath

iTrader: (4)

lift the engine up some and then tighten the screws. If the engine is sitting on the blocks themselves then you will have the problem you mentioned. Simply lift the engine off the blocks and start each screw and then you should have no problem.

Mark

HarKonnenD

iTrader: (23)

Man it just had to rain today. I really wished to get out there and run my onroads. Ah well...gives me time to clean down the MRX4 and relube everything.

dfilo123

I Need To Cover The Reciver And Was Wondering What To Use.

asw7576

It really depends on your driving style, your race track and what you after.

4.5 = Lower Roll Center, More Body Roll, Better on less grip track, Slower cornering speed at grippy track.

5.5 = Neutral <--- I'm using this.

6.5 = Higher Roll Center, Less Body Roll, Better on smooth track, Faster cornering speed at grippy track.



When you mix front and rear suspension mount :

4.5 front and 5.5 rear = Anti Squat

5.5 front and 4.5 rear = Pro Squat, helpful when you feel too much understeering at mid corner off throttle. ( Or your car turns wide radius on throttle while doing mid cornering ). --- I fixed my MTX3 understeering problem with high roll center & pro squat after 3 weeks "brain dead" to find more steering at mid cornering.

See attachment for complete reading.

cdelong

iTrader: (12)

I'd love to see you run a 6.5mm block at Toledo on a good day. You'd be doing cartwheels end over end at every turn

If there's a LOT of bite you need body roll (4.5mm blocks) to stop you from traction rolling, so to say what block you need for this or that type of track doesn't always work. Most permanent facilities that are sealed and treated weekly will work great with a 4.5mm block. If traction is a touch lower you may possibly switch to a 5.5mm block, but there are other tuning options available (camber gain) to make the car work very well with the 4.5mm block.

I'm sure most everyone here will agree... the 4.5mm block is the most widely used set-up

GK

That doesn't make much sense, I always thought you want less roll in high bite, and rotate more when traction is low...

cdelong

iTrader: (12)

if you have no body roll and lots of traction your car will just flip in the corners. you need the roll to absorb that rolling momentum in the corners and STOP you from traction rolling.

sorry if you can't understand my explanation.... maybe someone else can explain it in terms easier for you to understand.

asw7576

4.5, 5.5, 6.5 are just fine adjustments to suit your track or what you feel confidence driving it.

I can't say 4.5 is better than 6.5 or vice versa. I don't know..... it's everybody speed secret / recipe. All I can say 4.5 means Lower Roll Center and induce more body roll, while 6.5 is the opposite.

GK

I understand what you're trying to say, I just disagree with you and think the opposite is true, at least for rear suspension where the roll blocks are used. Read Serpent setup book, page 18: http://www.serpent.com/file.php?FileID=4082

Corse-R

Think that gives you grip is the downforce created by the body and transferred to the wheels via the body support. This downforce is applied directly to the wheels (in the case of the rear track), not on the suspension nor springs, so it works in a slightly different form.

If you don't want to hook-up the wheels on a corner is a matter of other adjustments, the roll center makes the chassis twist and turn by the centrifugual forces.

Also, cornering on those cars is done raising the inner rear wheel and sliding the whole track, so the chassis needs to roll just to make it possible to slide the wheels.

dfilo123

Hello Im New To The Forum And need Some Help With The Mrx-4r I Need to Cover The Reciver What Has Everybody else used

asw7576

I cover my receiver with stick pack battery shrink wrap.

cdelong

iTrader: (12)

Art Carbonnel showed me what he uses..... the inner tube from a bicycle tire. Get a 26" x 1.75" tube at WalMart for $3 and you'll have enough tubing to cut 100 receiver covers

moy

iTrader: (4)

you can use the cover from mtx3 or 4,or hpi's recievers box,or those party ballons.