Black Front needing help in the slick

[wildman31]

Driving an 05 black front 2" frame Rocket with 604 motor on gas adjustable shocks. Car is running great in tacky conditions, but terribly loose from center off when the track dries out. Here's my current setup: 54.4% Left, 51.7% Rear, 81 Pounds Bite, 425LF 300RF 225LR 225RR, JBar 8 1/2" on frame, All bars standard length, RR Lower bar up one hole, all other bars in standard holes. Running a banked quarter mile. Any help will be greatly appreciated!

[phenom08]

Couple things to try increase rear % to 53-53.5, 200 lr spring, lower the bottom rr bar back to std

[grt74]

if the cars is that good in the beginning of the night,just drop the lr lower one hole,or take out some stagger

[PushinTheLimit]

I 2nd adding some rear weight. That's pretty low for a slick track.

[talclipse]

Is the car loose off or just lacking forward drive off? As the track slicks off are you making any adjustments or is this where you are at once the track dries out?

The first thing I would do is get the rear percentage up between 53% - 54%. What was your reasoning for going up to a 225 LR? It's been a while since I messed with the black front stuff but from what I remember 300# was a pretty stiff spring back in the day on those cars.

If you are truly loose off (RR trying to pass the RF and counter steering) I would look at rolling the RR forward a couple turns and see how you like that.

How is your entry in the slick? A stumble on entry will cause you to trip and fall on exit.

[wildman31]

It's what you're describing, rear is trying to outrun the front when I get back in the gas. This is the setup I tried in the dry. When the track is heavy, I have both right side bars in the upper holes and it's running great. I'm also working on braking strategy on entry to help the problem.

[Drop Shock]

I would try raising left side rods and shortening the left top rod 3-4 turns. Also wouldn't run the right bottom rod up in the slick.

[N2Racin]

I have a Black front car that is also loose and no drive. Loose entering corner. I have 550 LF 375 RF 200 RR 250 RR I noticed in Wildman setup the LF and RR are softer than mine. Will that tighten car? I can't even hardly give it any gas on restarts. I have a limited all steel motor not 604. 5th coil is 300lb on gas shock 54 left 54 rear with driver in car

[DEKconsulting]

Way to stiff on the rf u need to be from a 275 to a 250. I never had any luck running using the left front to help free the car up just seemef like it wanted to lay over on rr. But 500 lf or 550, 275 rf to start then go to a 250 for feature, 175 lr, 225 rr 250 if on a momentum type track. Start bars off at standard and jbar std. Start with puttin jbar angle in as track slicks off. Then rock up left side for feature normally i would go anywhere from 4 to 6 turns on the lf and 6 to 8 on lr. Then if more is needed drop rrl bar down a hole. 54.0 to 54.5 left side% 54.5 to 55% rear% anywhere from 100 to 130 lbs of bite. And then drive the guts out of that bitch u cant lallegag around with thrm black front cars.

[RacerX10]

Way to stiff on the rf u need to be from a 275 to a 250. I never had any luck running using the left front to help free the car up just seemef like it wanted to lay over on rr. But 500 lf or 550, 275 rf to start then go to a 250 for feature, 175 lr, 225 rr 250 if on a momentum type track. Start bars off at standard and jbar std. Start with puttin jbar angle in as track slicks off. Then rock up left side for feature normally i would go anywhere from 4 to 6 turns on the lf and 6 to 8 on lr. Then if more is needed drop rrl bar down a hole. 54.0 to 54.5 left side% 54.5 to 55% rear% anywhere from 100 to 130 lbs of bite. And then drive the guts out of that bitch u cant lallegag around with thrm black front cars.

Does all this apply to a blue/grey car too ?

Thanks !

[DEKconsulting]

Not quite dont need too be quite as soft on rf and alot of other stuff

[brett4]

DEK... What do mean by rock up the left side????

[RacerX10]

DEK... What do mean by rock up the left side????

I was wondering about this too, because I see two different things mentioned about this .. "rock" and/or "tilt"

He seems to be going with raising the left side by putting rounds in both LF and LR, but I've also heard of, and the rocket book says, put turns IN the LR but OUT of the RF.

[DEKconsulting]

Turns in lf and lr just go a cpl more on lr. We r only taking turns out of the rf if is the 375to 350.

[Matt49]

Old trick but still a good one...especially if you don't have adjustable shocks for fine tuning. We call it "tilting" the car.
When the track gets slick, add 6 turns to the LR, add 4 turns to the LF, and take 3 turns out of the RF.

[DEKconsulting]

Yeap oldy but goody. Like i said before only go in small steps cause more times than so u will over tighten and be screwed do small steps and u will get there. If u make a bunch of changes for the feature and u are way to tight u wont know where to start backing out but if u make small changes u can go foward with another adjustment rather than chasing ur tail all night we've all done it and its not fun.

[RacerX10]

Old trick but still a good one...especially if you don't have adjustable shocks for fine tuning.

.. or if you DO have them and don't know wtf you are doing (i'm looking at me)

[N2Racin]

Done a little testing, I think my first issue was to much gear. Question on softer RF. It seems as though I lost traction/drive as we got softer.

[RacerX10]

It seems as though I lost traction/drive as we got softer.

You definitely lost traction as you got softer on RF unless you did something else to compensate.

[HMS27]

I run a 425 LF 375RF 175LR and 200RR. I am not allowed to run stacked springs or bump stops. I'm pretty happy with this setup. My question is when your talking about a 250 or 275 RF are you talking about a stacked spring or do you really run that soft with a straight up spring?