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Old 06-15-2005, 11:44 AM   #541
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Originally Posted by joemugen
thanks... your car is looking good too. when you get done painting, post some pics. yeah, i think the spectrum is very nice. i actually have it in my rrr now, but i just ordered another receiver so waiting on it to put in my mrx-4.

yeah yeah nice car and i am jealous, i have one but have driven it 1 time but one day I will get you chris
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Old 06-15-2005, 06:43 PM   #542
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Default How to improve traction?

I am driving MRX-4 and setting is based on the standard setup sheet. I feel the rear traction is very loose. What can i try to get more rear bite?

Thanks.
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Old 06-16-2005, 07:11 AM   #543
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Quote:
Originally Posted by US_MATRIX
I am driving MRX-4 and setting is based on the standard setup sheet. I feel the rear traction is very loose. What can i try to get more rear bite?

Thanks.
Before you try the next steps think about when the car is oversteerring? High speed (HS) or low speed (LS)

1st: Most Important, Tire Compounds make the greatest difference in 1/8th. Make sure your running the correct compund tires for the surface your racing on. Our club races on a low traction parking lot, which means I use 32 compound rubber to start. I'll switch to 35's as the traction improves. Most people make the mistake in runnning too hard a compound. (both HS & LS)

2nd: The rear pivot pin blocks (roll center block) make a huge. If you need more rear side bite, swtich to 6.5. (both HS & LS)

3rd: Doublke check the track width. Start with 264/254mm R/F. This should provide understeer but a stable setting. Work in 1mm from there until you have a setting you like. (both HS & LS)

4th: toe-in: the more you have in the rear, the greater the rear bite. Start with 2.5 degrees and work in .5mm (HS)

5th: front sway bar, standing it up will add more rear bite, (HS)

Good Luck....

Also, clutch settings make a big difference in the behavior of the car. That's another story
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Old 06-16-2005, 11:46 AM   #544
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Thanks for your great info.

What about droop in F/R? Does it make the rear has more bite?

Thanks.


Quote:
Originally Posted by Carl Giordano
Before you try the next steps think about when the car is oversteerring? High speed (HS) or low speed (LS)

1st: Most Important, Tire Compounds make the greatest difference in 1/8th. Make sure your running the correct compund tires for the surface your racing on. Our club races on a low traction parking lot, which means I use 32 compound rubber to start. I'll switch to 35's as the traction improves. Most people make the mistake in runnning too hard a compound. (both HS & LS)

2nd: The rear pivot pin blocks (roll center block) make a huge. If you need more rear side bite, swtich to 6.5. (both HS & LS)

3rd: Doublke check the track width. Start with 264/254mm R/F. This should provide understeer but a stable setting. Work in 1mm from there until you have a setting you like. (both HS & LS)

4th: toe-in: the more you have in the rear, the greater the rear bite. Start with 2.5 degrees and work in .5mm (HS)

5th: front sway bar, standing it up will add more rear bite, (HS)

Good Luck....

Also, clutch settings make a big difference in the behavior of the car. That's another story
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Old 06-16-2005, 11:53 AM   #545
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Not sure about the droop effect in the front to the rear of the car as I rarely adjust the droop settings in the front. (I usually set it at 1mm)

One thing is do use is the upstops in the front. I set the upstops to the point so when you compress the front-end the chassis barely touches the ground. This is importants and the MRX4 has a softer feel than the MRX3. Under hard braking, if the chassis is scrapping on the ground, the car has a tendency to understeering.
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Old 06-17-2005, 03:53 PM   #546
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Hello guys,
Just finished my body last evening and here is the result



I am not completely happy with it myself because I did all the lines with my airbrush and sometimes the paint made spatters instead of lines.
But all in all, for a first 1/8 body I am happy with the result.
Ciao,
Spiller
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Old 06-17-2005, 03:55 PM   #547
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I also have a question regarding the available springs for the MRX 4.

If I go by thickness then this would be the order from soft to hard:

gray 1.8
white 1.9
red 2.0 (only for rear)
pink 2.0 (only for rear).

The last two have the same thickness.

Anybody know if this is the correct order from soft to hard ?

Ciao,
Spiller
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Old 06-17-2005, 04:50 PM   #548
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I think the paint job came out great.
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Old 06-19-2005, 03:06 AM   #549
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Default Rear lower arm position

Hi,

Someone could explain me, for what propose I use the diferente arm positions 4.5, 5.5 and 6.5.
What are the real effect on the track.
thanks
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Old 06-20-2005, 10:02 AM   #550
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Hello PMvalente,
The pieces you are refering to are pieces to alter the roll center of the car.
The higher numbers make the roll center of the car higher. The roll center is the point in space where your car rolls around in turns.
Sorry for the not so complete explanation but if you do a google on "roll center" you will find more then enough info. For the remainder I would suggest you try it yourself to see what it does for you. I'm going to try it as one of the next steps to get to know the car better.
Ciao,
Spiller
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Old 06-20-2005, 10:13 AM   #551
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SpillerTwo- How are those Novamega engines? I've seen some and they seem really strong. I didn't get one as I was worried about the defects they first had. Also, do you run anything else other than the8th? I think I may sell my nitro sedan in order to run the 8th.
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Old 06-20-2005, 10:15 AM   #552
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Also, how do you setup your linkage? Does it let the car roll or does it gently slow it down.
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Old 06-20-2005, 11:41 AM   #553
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You have the correct order on the springs.
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Old 06-20-2005, 02:00 PM   #554
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Are you talking to me?
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Old 06-20-2005, 02:54 PM   #555
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talking to spiller two
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