Login    Forum    Search    FAQ

Board index » Racing Forum » Drive Train, Suspension and Brakes




Post new topic Reply to topic  [ 20 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: 4 link Question
 Post Posted: Tue Oct 12, 2010 5:46 am 
Offline
User avatar

Joined: Wed Apr 19, 2006 8:20 pm
Posts: 5852
Location: N.J.
With my present power upgrade should I reset the 4 link??? Thinking I have 200 hp more than before O:) ......

_________________
Image
running E85
Best ET 8.07
Best MPH 170.71
Barry


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Tue Oct 12, 2010 6:59 am 
Offline
User avatar

Joined: Wed Apr 19, 2006 4:11 pm
Posts: 2749
Location: Shepherdsville, KY
I bet you will. I think Randy (kymustang) ran into that with his last year. I think you will need to move the IC out some and probably stiffen the compression on the shocks.

_________________
Chuck Woloch

Chuck's Automotive
Full line Computech dealer
chucksautomotive@yahoo.com
Image


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Tue Oct 12, 2010 7:24 am 
Offline
User avatar

Joined: Wed Apr 19, 2006 8:20 pm
Posts: 5852
Location: N.J.
Maybe put the 125lb springs back in the rear #-o ...

_________________
Image
running E85
Best ET 8.07
Best MPH 170.71
Barry


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Tue Oct 12, 2010 9:44 am 
Offline
User avatar

Joined: Thu Apr 16, 2009 6:14 pm
Posts: 164
Location: Benton, KY
It will be a completely different animal =; , If it was not hooking hard it will now. The issues i had were just a gear change 4:30 - 4:86. My ic is out there around 68" not 100% sure what it is , but I will measure it and get back with you this week

The best advice I have is if you lose vision of the track lift immediately =;


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Tue Oct 12, 2010 9:54 am 
Offline
User avatar

Joined: Wed Apr 19, 2006 8:20 pm
Posts: 5852
Location: N.J.
Thanks Chuck/Randy........Any more suggestions Im all ears =;

_________________
Image
running E85
Best ET 8.07
Best MPH 170.71
Barry


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Tue Oct 12, 2010 10:19 am 
Offline
Site Admin
User avatar

Joined: Tue Apr 18, 2006 6:38 am
Posts: 11804
Location: Coming At Ya!
How hard were you on the wheelie bars before?

IMHO I think I'd run it like it is now as you know it was running straight with the other engine. The wheelie bars will keep it off the bumper and if you make a few passes and video it you'll have a better idea of where you need to go.

BTW, what springs do you have in the rear now? :-k

_________________
Big Boyz Toyz!

Image

Necessity is the plea for every infringement of human freedom. It is the argument of tyrants; it is the creed of slaves.

William Pitt, British Prime-Minister (1759-1806)


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Tue Oct 12, 2010 10:25 am 
Offline
User avatar

Joined: Wed Apr 19, 2006 8:20 pm
Posts: 5852
Location: N.J.
110lb =;

_________________
Image
running E85
Best ET 8.07
Best MPH 170.71
Barry


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Tue Oct 12, 2010 11:15 am 
Offline
User avatar

Joined: Wed Apr 19, 2006 4:11 pm
Posts: 2749
Location: Shepherdsville, KY
I don't think you can count on the wheelie bars to control the car with that much HP change. If you hit them hard enough they will either fail or unload the rear tires. Of course you can always go out and make easy passes to start with but I think you are going to have to change the suspension anyway. Where is the 4 link at now and what are the corner weights? How long are the wheelie bars?

_________________
Chuck Woloch

Chuck's Automotive
Full line Computech dealer
chucksautomotive@yahoo.com
Image


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Tue Oct 12, 2010 3:56 pm 
Offline
User avatar

Joined: Wed Apr 19, 2006 8:20 pm
Posts: 5852
Location: N.J.
Motor's not in the car yet...Yea I know im dragging my feet :-s ...Converter should be here Friday so this weekend I will get it all together..

Then get it on the scales..
I will look when I get home for the 4 link set up..

_________________
Image
running E85
Best ET 8.07
Best MPH 170.71
Barry


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Tue Oct 12, 2010 5:03 pm 
Offline
User avatar

Joined: Tue Apr 18, 2006 9:54 pm
Posts: 1619
Location: Western Illinois
Since you increased HP, you can count on more Torque roll. More torque=more torque roll. If memory serves, you have stout anti roll bar, so this shouldn't be much of an issue. The other thing you can count on is that center of gravity may be a little high for new power. The third thing is you may need a bigger tire. These are the areas you will want to look at if you have problems. If the IC is close to neutral, you should be fine with that. If you get too much wheel stand, and can't lower or move center of gravity forward, think front end limiters or stiffer rebound. If the rear springs work good now, they should be ok. You have spring supported weight and you have bar supported weight. Under power the IC or bar supported weight is overpowering spring supported weight for the most part. Did I put this in a way that could be understood?

_________________
Older I get the less I know for sure Dennis


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Wed Oct 13, 2010 8:50 pm 
Offline
User avatar

Joined: Wed Apr 19, 2006 8:20 pm
Posts: 5852
Location: N.J.
Ken It was not on the bars hard as it only left a foot on mark on the track...
I just don't want to stand it on the back and break something..

Dennis, The tires will be fine as there 16x33 so they should hold that power..

The 4 link is out around 50" and off the ground about 3 to 5 inches. I will have to check it after I get it back together...
I was thinking of putting it back to where they said to start with and then go from there..Not really sure of where to go with it...

_________________
Image
running E85
Best ET 8.07
Best MPH 170.71
Barry


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Thu Oct 14, 2010 8:34 pm 
Offline
User avatar

Joined: Thu Apr 16, 2009 6:14 pm
Posts: 164
Location: Benton, KY
Barry , I was way wrong just guessing my current ic is 98.9 " out and 2.1 high. If I remember correctly I raised the top bar 2 holes in the front after the big wheelie =;

That is 110 wheelbase about 47% on the rear, the back of my block is 81" from the center of the rear end and the crankshaft center line is 11/5/8' high at the front of the engine.

That is producing 1.05-1.08 60' times depending on the track .


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Thu Oct 14, 2010 9:12 pm 
Offline
User avatar

Joined: Wed Apr 19, 2006 8:20 pm
Posts: 5852
Location: N.J.
Wow that's out there........

_________________
Image
running E85
Best ET 8.07
Best MPH 170.71
Barry


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Thu Oct 14, 2010 10:08 pm 
Offline
User avatar

Joined: Thu Apr 16, 2009 6:14 pm
Posts: 164
Location: Benton, KY
Yea I had no idea it was anywhere close to that . Its still hookin and not squatting or separating very much , may not work now that I know what it is O:) That seems crazy I will remeasure it again tomorrow to make sure , but I am almost 100% sure that is right I took my time.

Did you get the email ?


Top 
 Profile  
 
 Post subject: Re: 4 link Question
 Post Posted: Fri Oct 15, 2010 5:25 am 
Offline
User avatar

Joined: Wed Apr 19, 2006 8:20 pm
Posts: 5852
Location: N.J.
Thanks Randy and I got your E-mail...Very interesting =;

_________________
Image
running E85
Best ET 8.07
Best MPH 170.71
Barry


Top 
 Profile  
 
Display posts from previous:  Sort by  
 
Post new topic Reply to topic  [ 20 posts ]  Go to page 1, 2  Next

Board index » Racing Forum » Drive Train, Suspension and Brakes


Who is online

Users browsing this forum: No registered users and 7 guests

 
 

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
cron