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Author Topic:   Short 2 link help.
Racer64
Dirt Full Roller

Total posts: 55
posted May 16, 2004 03:10 PM  
OK, I have a Hoffman short 2 link it is an easy top 5 car every week, The trouble I am having is last night the track was SUPER dry slick from having to run double features. My car is great if I can run my own line but if there is some traffic I have to slow up and the car pushes terrible in the center of the turn. To the point I have to get out of the throttle to get it to turn. I am running 750 rf, 650 lf, 200 lr(in front0 and 175 rr(behind axle). My question is what will it do by moving the rr spring on top the axle or moving it in front on slider?? Car is very fast everywhere else even not too bad off the corner. I could use a little it more forward bite to get to the winners circle but need to fix the center first. When there is a little bite in the track it will pull the left front way up from center off. Running short panhard bar to left side of pinion.

scaled without driver
50.5% leftside
58.4% rear
50.8% cross
Half mile track

Sorry for the long explanation but still dont know if I gave enought info. Any help or suggestions will be appreciated.


avenger 11
Dirt Forum Racer

Total posts: 88
posted May 16, 2004 03:30 PM  
When I moved my rr spring on top of housing,it allowed me to drive deeper into corner and freed it up in the middle of corner.I would never switch it from top of housing again.I had tried both in front of housing and staggered(lr in front,rr behind).You will want to soften rr if you put it on top(150 or 125)and maybe go to a 225 on left rear,or try a spring rubber first.

[This message has been edited by avenger 11 (edited May 16, 2004).]

mod70
unregistered Total posts: 88
posted May 16, 2004 09:29 PM           send a private message to avenger 11   Edit/Delete Message   Reply w/QuoteBBBBBB
64 - I've got an '01 Hoffman metric. Your setup sounds almost exact to mine, except that my front springs are 750 & 850, the RR spring is on top of rear end, and I run 53% cross. I would definantly move spring up to top, and add lots 'o cross. I was able to drive in harder and pick up the throttle earlier than most on a flat dry/slick 3/8. Rear % sounds right, but You might try a little more left, especially if you're on a flat track. I'm also curious what kind of angle is in your J/straight bar. I run 17 deg. Is your LR control arm up high enough? Hoffmans are great in the slick!

hiredgun
Dirt Forum Racer

Total posts: 78
posted May 17, 2004 08:05 PM  
Check you PM

Racer64
Dirt Full Roller

Total posts: 55
posted May 17, 2004 08:17 PM  
My Hoffman is on the 70 to 72 monte carlo stub. Pretty much the same as chevelle. My car seems to like the short panhard bar with about 3" of rake. I have tried the j-bar and havent had much success on the dry slick. How much rake to use on j-bar and willing to try it again with some suggestions. I am currently only running about 60lbs. of lr bite. Went up twenty pounds sat. night and was still a tad tight in the center. One more thing, My rr jack bolt is about 2 to 3 inches in front of the housing. I bought a mount that puts the spring that far in front and thought about trying it that way. what do you all think?

Racer64
Dirt Full Roller

Total posts: 55
posted May 18, 2004 03:21 PM  
TTT

mod70
unregistered Total posts: 55
posted May 18, 2004 04:05 PM           send a private message to Racer64   Edit/Delete Message   Reply w/QuoteBBBBBB
I'd keep it behind or on top of the housing.
By the way, I've seen this " TTT " before, what is that?

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted May 18, 2004 04:25 PM  
ttt means 'to the top' its a reply to bump the thread back up to the top of the list.

Is the car tight on the throttle or just tight rolling through?

Racer64
Dirt Full Roller

Total posts: 55
posted May 18, 2004 04:26 PM  
"To The Top"

It is tight just rolling through. I sometimes have to burp the throttle to get it to turn. If I can drive in real hard it will roll clear to the center nice and then I can start to pickup the throttle from there all the way down the straights. Like I said it is a SUPER dry slick track and any kind of "throwing" the car in and you are on your way to the back. IE spun out or getting passed.

thanks

[This message has been edited by Racer64 (edited May 18, 2004).]

mod70
unregistered Total posts: 55
posted May 18, 2004 04:49 PM           send a private message to Racer64   Edit/Delete Message   Reply w/QuoteBBBBBB
what wheel ofsets are you running? mine are:
4" 2"
3" 4"
What is your shock package?

Racer64
Dirt Full Roller

Total posts: 55
posted May 18, 2004 04:57 PM  
3" 3"
2" 4"

Bilstiens
4040 3050
3030 3030

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted May 18, 2004 05:02 PM  
Where is your panhard bar mounted height wise and also where do you ahve lead mounted?

Racer64
Dirt Full Roller

Total posts: 55
posted May 18, 2004 05:11 PM  
Panhard is 2nd hole up on pinion with 3 inches of rake. My shorty panhard uses 9 inch swedge and is 12" overall. I have 50 lbs of lead directly in front of fuel cell.

thanks

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted May 18, 2004 05:18 PM  
Sounds like you are rolling over a little too much and that is making the car tight. Either need to raise your panhard bar a little or lower some lead, or move some lead to the left to put some more left%.

mod70
unregistered Total posts: 2007
posted May 18, 2004 05:50 PM           send a private message to dirtbuster   Edit/Delete Message   Reply w/QuoteBBBBBB
You could try a stiffer compression on the rear shocks maybe go to a 4040 LR and 5030 RR. I like to look at shocks first whenever you're talking about a transistion like when you pick up the throtle.

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