tom1974

Stock is Very Good!!!!
The important optional are +1mm or + 2mm

Millord

On my local track I have the same issues. The cars feels like a rwd and not like a 4wd. But in the last weeks, I ran the car on other tracks and the car felt very good. I think the standard setup is made for medium to high grip tracks. My local track is very low grip. I made some changes and it is better now, but still there is some room for improvements. Actually I'm running 7-7-5 but I think i will give to 10-10-5 a try. I think what Mugendraw said sounds logical for me.

tom1974

If You use 10/7/5 the car is more Easy. ...

rider313

iTrader: (94)

10/7/5 made the car have a very mild/lame turn in and exit was very inconsistent and just plain weard. It drove almost like a front wheel drive car.

5/5/3 had a useable amount of turn in and made the exit very predictable. On low grip all they way up to high grip.

High grip high speed flowing tracks 7/7/4 would be better.

klujan1001

iTrader: (47)

Hay Dan what springs do you guys run on low grip tracks

rider313

iTrader: (94)

The stock kit springs are a great starting point on low grip. Going to a touch stiffer rear black "10.25" isn't a bad choice either.

Millord

I'm wondering if anybody else has the problem, that the fuel tank will be destroyed by the CFRP upper plate. I have two damaged fuel tanks yet.

gt racing

Millord, thats normal due to flex of the chassis at hard landings etc..
no need to change the tank here..

piga96

No need to worry here, my fuel tank looks WAY worse but it's working, working, working.

Brian C

iTrader: (34)

Same look on mine but no performance issues through about 10 races since I first noticed the issue. I've since installed the longer front chassis brace and I feel that the top plate isn't hitting the tank anymore.

skrichter

iTrader: (13)

I'm new to Mugen. But, not new to 1/8 (been racing for over 20 years)

I noticed there is a significant amount of bumpsteer when at full travel, either full droop or when shock is compressed. I'm at 104mm of droop in front.

Is this the nature of the beast w/Mugen? Or are you adding shims under the steering knuckle or rack?

Loving the car so far!

Millord

Thanks for your comments regarding the fuel tank. I was on our track the whole day. Even if I still have the feeling, the setup is not perfect on corner exits, I realized that I had the fastest lap time of all. So I'm closer to the maximum than expected.
Still difficult to drive, but if you are concentrated very fast. My old serpent was easy to drive, but never that fast. But I think it's better to learn how to control a fast car than to try to make a slow car fast

fgnewbie

Ive just left it as is i keep my droop at 104 as well . I do run my shocks a bit stiffer tho . 9.0 fr and 10 rear springs

skrichter

iTrader: (13)

When I am referring to bumpsteer, its how the wheels move through the progression of the shock travel. When at full droop or full compression, they toe out quite a bit. Usually this is resolved via shims under the knuckle or steering rack.

But maybe this is accepted w/the Mugen?

fgnewbie

yes this is quite normal.