Black Front needing help in the slick

[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?

[DEKconsulting]

Yes we run a barrel type when i get that soft just so im not coil binding but yes we do grt that soft on a std spring. Yes we did have to compensate for lack of drive other places in setup.

[MasterSbilt_Racer]

I have successfully run a 175# rf on a modified Rayburn.

[HMS27]

I've thought about going softer on the RF but haven't yet.

[DEKconsulting]

Yea we usually run barrel springs if that low to keep from coil binding

[CCHIEF]

No barrel springs on front. Hperco makes a 275 spring that will work.....good luck getting one right now. You will need a well selected/fitted bump to have any drive. And it will be tight as a frogs ass getting in. And with a black car , even with a raised rail, it will put the rail and cross member on the ground. Stick with old school deals on black cars.

[DEKconsulting]

Good luck keeping up with all the new school technology running the old school setups. If its eorking for ya keep on getting it.

[CCHIEF]

Good luck keeping up with all the new school technology running the old school setups. If its eorking for ya keep on getting it.

Give a few examples of a black fe DLM rocket winning on a slick track....recently. And how to make a black car go with the lf down.... in the slick. The black front end was not designed to work with that much travel.

[CCHIEF]

Yes we run a barrel type when i get that soft just so im not coil binding but yes we do grt that soft on a std spring. Yes we did have to compensate for lack of drive other places in setup.

How do you compensate for lack of drive. Not being an ass, but tell it all or don't talk!

[Matt49]

You compensate for lack of drive by doing the opposite of what you did to get rid of it but somewhere else on the car. You kill forward bite when you soften the RF spring because you have LOST dynamic wedge. So you need to do something to get dynamic wedge BACK. But almost all of those things come with unwanted consequences on corner ENTRY. Which means you need to go do something to compensate for that which could have unwanted consequences on corner EXIT. So you end up with a series of changes that you need to make to get the overall balance you're looking for back in the car. A lot depends on driver. A lot depends on track configuration. There is not a "tell it all" secret formula that is a one-size-fits-all setup for a soft RF spring setup.
I'll provide an example:
You go to a softer RF spring and obviously you've lost dynamic wedge and therefore lost forward (LR) bite coming off the corner. So we need to get it back. Let's drop the RR upper bar on the chassis. Now we've decreased RR drive which increases LR drive so now we've got our forward bite on exit back. But we also decreased birdcage indexing on the RR which will free corner entry. So now we need to tighten corner entry...naturally we go and stiffen the LF spring because that will have the least effect on exit. Problem solved right? Not really because we don't know how much to move the RR upper bar and then how much to stiffen the LF spring. That takes testing and depends on the driver and nobody is going to just open up their setup book revealing what they spent many hours and many $$$ figuring out the hard way.

[DEKconsulting]

Exactly what matt said i cant sit here and tell u what to do to make ur car win exactly without seeing it run only make suggestions chief. As matt said again ur defintly not goin to get my note book from the past ten yrs ur gonna have to spend ur own time making ur own book like everyone else does. Sorry that i didnt have ur secret setup to share with you all. But once again the ones looking for the secret setup that everyone is running is usually the ones running mid pack and getting lapped cause their is "NO" MAGIC SETUP.