Originally Posted by Turbonium
sorry if this has been asked before, but on my Rev.4, i have the oldschool frontend, but i read where one or the other front was better for smooth, or bumpy tracks... any input as to which works better where? i am on carpet, and have access the AE front, as well.
and maybe the +'s or -'s of each setup? thanks....
the carpet at ACR is new and the long hair/fiber type, i would consider it flat. traction is still somewhat low with just a slight shaded groove. i get a bite and slip feel throught the race especially in the rear of the car. you and me were both running the most flexible cars (DP-12 Fiberglass and YRX-12) that most would say are for asphalt, bumpy, or lo-trac tracks. yet we finished 1st and 2nd. at ACR i run the 0-deg blocks with a shim front and back. .020 springs with all play shimmed out. i also run a extra set of cutdown suspension blocks inbetween the lower arms and the 0 deg blocks. this makes the top arm lenght longer. car is for me agressive but yet not overly twitchy even with 10 deg blocks. car seems to stay flater with it also. i used to hear it refered to as the Mike Blackstock mod years ago. Derek saw it first hand.
with the IRS lowered front arms you get more useable life out of your front tires and able to run them lower.
last time i saw you with the Rev4, for the traction there, it was either overly twitchy in the frontend making it hard to drive. this is from the old front being really quick on initial response.
some info from the teamspeedmerchant site under the Rev3 on this subject:
the "old skool" front end used by many of our team drivers. Just a note about this. Here at SpeedMerchant, we do a lot of testing, and I can tell you on our car the old style front end works better about 90% of the time. Here's what we've found over the past few seasons.
The new stlye front end is better on bumpy tracks. Hopefully yours' isn't like that, but in our travels we've been on some pretty scary surfaces. In these cases, we put the new style front ends on the cars.
The "old skool" (yes, I realize that's not how school is spelled) front end gives our car more steering entering a corner than the new style front end.
In the center and exit of the turn it has slightly less steering than the new style front end.
This tends to compliment our chassis' handeling characterisitcs. Because of having all the weight in the centerline of the chassis, the Rev.3 doesn't transfer as much weight as most 12th scale cars do when entering a sharp corner, this can lead to "push" or "understeer". Like I said earlier the old style front end remedies this situtaion.
The "old skool" front end has much less "slop" than the new style. Whenever you have "play" in a suspension, either from wear or poor assembly you are just asking for inconsistency.
The "old skool" front end weighs about 1/2 of what a new one weighs. This lowers your cars total weight as well as lowering its' center of gravity.
The "old skool" front end can take a good hit and not go out of tweak. The new style front end is notorious for "moving" after a hard hit and then throwing the whole car out of tweak. Tons-o-times over the past few years drivers have brought me cars to look at with the complaint "It's out of tweak." After going through the car, guess where the problem is usually found. The front end. Either the delrin pivot balls are bound up, a spring is collapsed, or just too much play in the parts, etc, etc, etc.
Remember the K.I.S.S. theory on racing. Keep It Simple Stupid.
BTW on the old front end...one thing not mentioned, the material AE uses now is very prone to breaking more the the new front. invest in the braces that SM sells
for the old front.