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Saturday Night Racer >> RACE TECH >> Dirt mod metric chassis with pinto spindles?
http://www.latemodelracer.com/cgi-bin/yabb2/YaBB.pl?num=1238911762

Message started by jp80 on 04/04/09 at 11:09pm

Title: Dirt mod metric chassis with pinto spindles?
Post by jp80 on 04/04/09 at 11:09pm

What lowers are needed? Actually ran pinto stuff on my harris chevelle clip and want to run pinto on my metric... what do I need to do? thanks

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by TIM_BEWLEY on 04/06/09 at 4:39pm

i guess this must be a great set up and nobody wants to give out any info ????

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by jp80 on 04/06/09 at 5:37pm

I've seen it, i've heard about it and I will get the answer.. 4m.net will give me an answer. My harris had the pinto spindles and the weight advantage alone makes it a necessity. Thanks for the Antioch picture. It amazes me how they don't put any on the website.

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by bouncermike on 04/06/09 at 6:08pm

a good one to ask would be larry wise!

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by jp80 on 04/06/09 at 7:26pm

well maybe he'll put an answer on here... i think i see him on 4m.net also... where is he from?

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by bouncermike on 04/06/09 at 7:27pm

bako or taft

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by XMODRACER on 04/07/09 at 7:31pm

i run pinto spindles on my metric clip with nova lowers , sofar so good

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by jp80 on 04/07/09 at 7:40pm

ok but what uppers are you running? did you have to lower the mount? mine are in stock location....
thx

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by lwiseracing on 04/07/09 at 7:49pm

running out the door for more beer will be right back

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by lwiseracing on 04/07/09 at 8:50pm

ok im back.sip.ah.... the lowers r 68-72 rear steer arms. the lower ball joints r moog# k6117 you need to ream the lower spindle so 1 11/16 of threads stick out of the spindle. to set the roll center close. the top ball joint screw in moog#k772 will fit the stock hole in the spindle. upper arms just get some adjustable ones so u can change the tubes to the correct length to set caster camber. dont forget u will have to get longer tie rod tubes to. u got to drill the spindle 5/8 for the tie rod to.

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by bouncermike on 04/07/09 at 9:00pm

i told you so!!!! i think hes forgoton more..than i will ever know about this stuff!

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by Chad_E._Jeffreys on 04/07/09 at 11:05pm

Were the lower control arms hard to find? And also, is it hard to spare part up for a rough night at the races, to get through the night? Chad

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by lwiseracing on 04/08/09 at 6:54am

u can find them at junk yards. i got 1 at luise? on union for 65. i got most of mine from bob pierce the only sucky part is if u buy is buying 4 of them 2 for the car 2 for spare as far as the a arms just put a set on the car take them off then put your spare set on the car then u got a set ready to go do the same with the spindles... when i got my new car done this year i stripped ever susp. piece off the car after setting toe caster camber trail and replaced it so if i have a problem at the track i got it to bolt back on no ? if it will fit and it

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by lwiseracing on 04/08/09 at 12:32pm

jp80... the moog#k6136 is a bolt in upper and is 1'' longer so it might help if u dont want to move your upper mounts this is a pic of my pierce with nova and pinto stuff

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by Chad_E._Jeffreys on 04/08/09 at 1:04pm

That looks pretty good, I thought you were running the three piece uppers, and that seemed like alot to carry for spares, not to mention the cost. Glad to see you're back racing. Chad

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by lwiseracing on 04/08/09 at 1:20pm

on my shaw im running them. the pierce uses those

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by jp80 on 04/09/09 at 12:38pm

Thanks for the info and the picture.... of course more pictures would be great...
Thank you

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by jp80 on 05/23/09 at 10:09pm

finally finished... caster camber good, bumpsteer not bad. I'm starting to see the light at the end of the tunnel....

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by jp80 on 11/25/09 at 11:06am

Yep i'm starting this one up again... I used the 1" taller ball joint on the upper, however I have noticed, especially at las Vegas that it doesn't seem to be rollong over in the front. So I need some advice on measuring for my roll center? Any thoughts?

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by FlatBlackMod15B on 11/25/09 at 9:59pm

dont over think it, just soften the front springs up. whats the angles of ur upper a-arm's with the lowers level?

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by jp80 on 11/26/09 at 9:39am

i'll check it soon. i have measured the angle before but didn't write it down.... that's real smart..... anyway i like your thoughts and will check them this weekend,
Thx

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by jp80 on 11/27/09 at 7:31pm

Ok so i set the car at 6 3?4 inches and then measured angle. Left front 11-12% right front 8-9%. i must admit my ride height was less than that.

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by TALON75 on 11/27/09 at 9:02pm

doesn't sound to good to me, you ussually need more angle in your uppers to have a decent roll center . while I agree with Brad in the don't overthink it, it sounds as if you are working from scratch and not from a pro built chassis. I would recommend that you get a Steve Smith book on Modifieds, it is old school in a lot of ways but also has a lot of good basic info(like mapping roll center) that it seems you maybe needing. It never hurts to try and understand your racecar better, there are many factors as to why the car may not be rolling over the way you want(even the j-bar can be a factor), and roll centers are ever changing while in motion which makes it difficult to say a certain location is right. good luck

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by jp80 on 11/27/09 at 10:05pm

i am planning on going to the racewise 3 day class in denver in february so that should shed some light on the issue. before i set the chassis at 6 3/4" ride height my angles were more like 14 and 15 but then again the lowers weren't level... kind of touchy verifying if they are level... so I raised the car to get the ride height.

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by jp80 on 11/28/09 at 5:08pm

evolution chassis? Metric? I was going to the one that Kelly boen was going to be at. No driving just alot of set up, shocks. ect.. i believe Kellen went to it a few years ago.

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by XMODRACER on 12/28/09 at 12:24pm

hey jp i have a 06/09 AWESOME chassis out of pahrump,nv its a metric clip and i use 67 nova lowers w/pinto spindles and 3 piece uppers . i use the long lower balljoint and tall upper balljoint , sorry no part#s for the bj`s . as for set up we try to line up the lower pivot bolt with a " visualized " center of the lower bj as a "starting point for ride height @6" . springs for vegas were 650 both sides . but for the short track we run on a weekly schedule i run 800l 900r w the same ride heights . angles on the uppers are 15L and 14R , dont no if that sounds right to some of the other guys but my right uper arm is SHORT , i have 6 degrees of camber gain from ride height to bump ( keeps the tire flat to the track at all times) as for rolling over on the right front , with the amount of traction i have she stays firmly planted,bottomed, etc . as for the j bar i only run 6" of split at ride height . my car is double 4 bar , L bars 5 and 19 degrees r bars 5 -21 degrees to start with and 50# of bite . all i do inbetween heats and b or main is drop the right bars , maybe a lil stagger or reverse stagger . some people seen my car @VV at the begining of the year , said it looks tight , it was but for me id rather push than spin . any ways this may help u , maybe not , hell maybe i got it all wrong , who nos , maybe ill get some advice . thanks eric . ;)

Title: Re: Dirt mod metric chassis with pinto spindles?
Post by jp80 on 01/11/10 at 10:52pm

xmodracer, thanks for the info.. i got a few other tips and then decided to string out the front end to see where my roll center really was. I lowered my ride height to 6 on the left and 53/4 on the right. Removed the upper BJ that was 1" over on the left and low and behold... the roll center was exactly where the book says... 4" to the right and about 3 1/2" off the floor... I'm stoked.. now all I have to do is install my 3 piece upper a arms and I'll be ready in the front end... got some parts from the stockton swap meet and a bsb brake floater so now I can focus on the rear end.