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-   -   8T 2.0 (https://www.rctech.net/forum/nitro-off-road/256312-8t-2-0-a.html)

Chris Peralta 03-01-2011 01:14 PM

Antisquat will change the characteristics of the truck under acceleration and under braking. It can also effect the way the truck jumps. Sometimes what the change should do on paper seems to be opposite on the track so your best bet is to change it in small increments and do back to back tests.

Chris Peralta 03-01-2011 01:23 PM


Originally Posted by Donat (Post 8730157)
How should i set ride height on my 8T while using skid plates? If setup says 36mm should i have a 36mm gap between ground and chassis or ground and skid plate?


That should be measured to chassis, if you measure that distance to your skidz your truck will be riding high. Some say they can't tell a difference but I always did so I just never run skidz. It's a personal preference kinda thing, if you set it up and the truck drives good for you then go with it.

dnebout 03-01-2011 07:08 PM


Originally Posted by dnebout (Post 8696234)
3 back to back servos shot on throttle... 2-7955s and 1-7940. Never had this happen. Some of the faster guys told me that my chassis is flexing and hitting the servo. They told me I should run plastic spacers to lift the servo a bit. I've always run these servos with the brass inserts and the rubber grommets and never used the palstic spacers. I've been running the chassis for about
1 1/2 years and wondering what you all think.

Update: So I was advised to grind down the chassis guard which is what I did. I raced on Saturday with a 7955. I put about an hour of run time on the 7955 and no problems. I went out to run a few tanks tonight and the 7955 went bad. I decided to put in my 7940 that I got back from Hitec. I had a buddy watch the whole install just to make sure I was doing it right and not going crazy. He agreed with the majority of the installation process that I have (he had a couple of his own preferences). We went out on the track and another servo out. This makes 5 servos back to back in 4 weeks.

The only thing I can think of at this point is that the Spectrum 3100 receiver is burning out servos only on the throttle port of the 3100. Is this even possible?

deadmancourt 03-01-2011 07:10 PM


Originally Posted by dnebout (Post 8732246)
Update: So I was advised to grind down the chassis guard which is what I did. I raced on Saturday with a 7955. I put about an hour of run time on the 7955 and no problems. I went out to run a few tanks tonight and the 7955 went bad. I decided to put in my 7940 that I got back from Hitec. I had a buddy watch the whole install just to make sure I was doing it right and not going crazy. He agreed with the majority of the installation process that I have (he had a couple of his own preferences). We went out on the track and another servo out. This makes 5 servos back to back in 4 weeks.

The only thing I can think of at this point is that the Spectrum 3100 receiver is burning out servos only on the throttle port of the 3100. Is this even possible?

are you running alot of break?...or maybe your pulling too much brake in front or rear and dont realize it...thus its stressing your servo out;)

Sein 03-01-2011 07:34 PM


Originally Posted by dnebout (Post 8732246)
Update: So I was advised to grind down the chassis guard which is what I did. I raced on Saturday with a 7955. I put about an hour of run time on the 7955 and no problems. I went out to run a few tanks tonight and the 7955 went bad. I decided to put in my 7940 that I got back from Hitec. I had a buddy watch the whole install just to make sure I was doing it right and not going crazy. He agreed with the majority of the installation process that I have (he had a couple of his own preferences). We went out on the track and another servo out. This makes 5 servos back to back in 4 weeks.

The only thing I can think of at this point is that the Spectrum 3100 receiver is burning out servos only on the throttle port of the 3100. Is this even possible?

I would have to guess chassis. Maybe your chassis has worn too much.

dnebout 03-01-2011 08:34 PM


Originally Posted by deadmancourt (Post 8732262)
are you running alot of break?...or maybe your pulling too much brake in front or rear and dont realize it...thus its stressing your servo out;)

No deadman. I wish I could make the brakes a little stronger, but I've been so afraid to stress out the servo that I've backed off from my usual settings.

Integra 03-01-2011 08:37 PM

what does your carb feel like when you manually work the throttle or the Slide on the carb ? Post pics of your linkages please.

Beenbreto 03-01-2011 08:45 PM

Hey guys got a question, has any one used the foam dampers on the shocks? What are the added benefits to them? Any preferred surfaces that they are best on? Also dumb question how are they installed? Thanks guys!!!

dnebout 03-01-2011 08:46 PM


Originally Posted by Sein (Post 8732429)
I would have to guess chassis. Maybe your chassis has worn too much.

I thought the same thing too, but then thought the chassis would flex in the opposite direction from the servo? I will say that when I threw a straight edge on the chassis last week, it is warped a bit. To be a little more specific...when I place a straight edge on the bottom from end to end, there is a gap of less than 1/16" in the middle.

dnebout 03-01-2011 08:47 PM


Originally Posted by Integra (Post 8732803)
what does your carb feel like when you manually work the throttle or the Slide on the carb ? Post pics of your linkages please.

It's all good Integra. I'll take a pic now and post it.

dnebout 03-01-2011 08:59 PM

3 Attachment(s)
Pics

Integra 03-01-2011 09:05 PM


Originally Posted by dnebout (Post 8732846)
I thought the same thing too, but then thought the chassis would flex in the opposite direction from the servo? I will say that when I threw a straight edge on the chassis last week, it is warped a bit. To be a little more specific...when I place a straight edge on the bottom from end to end, there is a gap of less than 1/16" in the middle.



100% normal

Frank L 03-01-2011 09:06 PM


Originally Posted by dnebout (Post 8732937)
Pics

Man that looks good to me. Linkage is straight and the servo looks good. Try pulling on the throttle linkage on the other side of the horn. Is it smooth or does it feel like it binds. You should be able to move it about 70-80% without the horn moving. It should feel free and slide easy.

Integra 03-01-2011 09:08 PM


Originally Posted by dnebout (Post 8732853)
It's all good Integra. I'll take a pic now and post it.



By sheer visual it looks all good, 1 screw is a little tight from the looks of the rubber grommets. The Nova carbs are normally bind free But what about when you get some heat in the motor ? still smooth ?

Angles from the top look good, What about the angle its pulling at ?

Cyberacer 03-01-2011 09:19 PM

:facepalm: The problem is when you pull the throttle and chassis flexes, it stresses the servo and leads to failure. Your servo pull should be less than the full travel of the carb barrell to allow the chassis to flex and not stress the servo.

I haven't blown a throttle servo in my Losi's in over 3 years setting them up this way.


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