|
Post by thurston on Dec 15, 2013 18:49:06 GMT -6
was just looking for some tech talk about this subject. something I have been playing with and would like to pick at someones brain for a while.
|
|
|
Post by confused on Dec 15, 2013 20:52:38 GMT -6
My first reply every time is the entry is off. Either too tight and having to slow down too much, or too looses and having to wait for the RR to grab. Either way, the driver tries to make up lost ground with a heavier right foot.
|
|
|
Post by thurston on Dec 16, 2013 20:27:21 GMT -6
yes the driver is saying he is having trouble with exit only. and is only asking for forward drive. entry and exit seem fine and is only having issues at corner exit about four car lengths out and past flag stand witch is half way on front d shaped 3é8 mid banked heavy most times but extremely dry at other times. now I find that the car is fighting a tight in issue my self, and is not helping and I think I am in right direction. last year he was having issue and was running 175 tall spring at 180. then went to 225 spring 13 tall and was better in and better off. always scrambling for brake on entry now. so now I am trying same spring and what they call for for him at 10 pounds lr pierce o8.only thing I haven't tried I guess. these issues arer greater in dryer conditions of course becsause track slows right down. was thinking of going to 175 rr to help a little but have only one chance to try it because if not going same old route because is ok with it because it is close enouph.
|
|
|
Post by clbaker25x on Dec 17, 2013 12:13:36 GMT -6
Why not just increase bite a little. Seems like it would free entry and tighten off.
|
|
|
Post by thurston on Dec 17, 2013 17:22:18 GMT -6
I have been running with about 180 with a 225. you believe it should be even higher then what it is. I have run up to 250 back in the street stock days but I don't believe I should be going higher. I feel that what I am seeing in my mind by watching the reaction from my stand while he is racing, is that the car looks to be dragging the left rear in the dirt while entering corner and is causing his front end to slide out in mid corner creating to much havoc on exit. I will say after rebuilding this car that brake system was all screwy and I have got it running properly now!! this is why I am going back with what I finished with because brakes could have been causing this issue with front end sliding out but won't know until practise day!! just having to many things to think about during off season lol!!
|
|
|
Post by startnonthetail on Dec 18, 2013 10:19:21 GMT -6
sounds like stagger may be playing a part in this, too.
But I agree with the adding a little more bite and see what happens.
|
|
|
Post by clbaker25x on Dec 18, 2013 12:27:28 GMT -6
We consistently ran 300 pounds of bite in our 2 link northern sportmod. Planning to do the same thing next year with the 4 bar IMCA mod. I will let everybody know how it goes.
|
|
|
Post by thurston on Dec 18, 2013 16:23:59 GMT -6
ok, so I am the guy that everyone around hear thinks is way out to lunch when it comes to high wedge. the people at my home track that is lol!! I have always been successful with it in all my years. my track is heavy clay and is wet always to start and stays wet most of the time but really slick when dry. but it is D shape with two short corners and semi banked. the people here think that high wedge is out of the question and is old school. even the car builder wants me to run less at about 10 pounds.now as I was saying that the brakes were srewed up and I have rebuild the whole system and is running good. now that I have been seeing what you guys are saying, I am having second thoughts about the brakes being the problem all along maybe!!! like I said I am going back to the test and tune in spring to figure this out!! only issue I have is running Eldora in april!!
|
|
|
Post by clbaker25x on Dec 18, 2013 16:43:01 GMT -6
I don't know much about the peirce clamped deal. Everybody around eastern Nebraska is mostly on 4/4 floated stuff.
|
|
|
Post by powerslide on Dec 19, 2013 10:03:26 GMT -6
The spring behind deal jacks a bunch of LR in the car when it hikes up, thats why you see guys only running between 10-50 pounds most of the time. Late models run more i feel like, not sure if its because of the liftarm being further right or the fact they have more tire. But we can easily overload one of these 8in tires, need to have a balanced setup.
|
|
|
Post by thurston on Dec 19, 2013 20:36:25 GMT -6
I do agree with the balancing of the car, wich is what I have been trying to find the sweet spot when it comes to wedge or lr. As I was saying, been happy about the amount I have been running just not happy. I thank you for your tid-bit about the lr floater. I have made the changes last year to full floating lr behind with brake floater also and put rear of car on coil over!! now it is all put away in the shop and went back to being clamped, driver did not like the feel. the more I talk with you guys the more confident that I am on the money or really close. I just somehow feel like my brake issues are my biggest problem and as I have said before they were messed up. we purchased this car and ran it the way it was. now putting gauges in and all new system front to back!!! car was always good just don't feel like the brake won't set the car for our short and sharp corners. people say you don't need brakes, but as heavy as the track is it can get very fast and they tell me momentum should free car but here there is no way!! you need brakes. I have worked a lot of years with late models and four links so it is not like I don't have the knowledge. I believe that this brake system has fooled me and now I will get the best of it this year!! you guys have really been helping me with this issue and want to thank everyone for your support. Don't know if you guys have raced in Canada but the track is putting a late model and mod shoot out in late September!!Check out south Buxton raceway!! merlin Ontario.
|
|
|
Post by flipflopoo1oo on Mar 1, 2014 17:53:01 GMT -6
I would take away some horses (if the car was fine) for about 3 car lengths! Best to use 400 than none of the 600 you have! As long as it moves for one, it may handle 500 if you get my drift! When less is more usable! I do not count on a driver not standing on it completely off the corner anytime! This can be done several ways, fuel, timing, vacuum, valve adj. and cams! I prefer weights and springs of timing although We never run a power-valve because of just such problems as well as getting lean on the far end of the straits or getting tight on top end! A extra good bit top lube in the fuel helps to muddle things at low RPMS too!
|
|