Drag Race only shocks - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Suspension - Brakes - Steering
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 05-19-2010, 10:58 PM
Registered User
 
Join Date: May 2010
Location: Vancouver, WA
Posts: 25
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Drag Race only shocks

I recently purchased some new shocks for my 69 chevelle, and without noticing got drag race shocks. I read that the "drag race only" printed on them is basically for liability purposes. my question is, since they are not gas pressurized, how in the heck will they prevent my rearend from squatting all the way? I have wide tires in the rear and don't want to rub, so am I going to need stiffer springs as well? Or am I missing something that will prevent my car from basically sitting on springs only? Just wanted to ask this before I waste my money sending them back, or installing them and they dont work as intended. I like the fact that they claim they will eliminate my wheel hop because I get alot of wheel hop with my air shocks I have now.

Also if it isnt recommended or doesn't sound like a viable option to keep them, Would the Edelbrock Performer IAS Monotube Shocks eliminate my wheel hop?

Would it be an option to run both shocks on my car to benefit the drag race shock when going to the strip, but keep the gas charged shock on for ride height? And if so how do I mount both on my axle assembly?

Incase you didn't notice, I am new to the shock industry hehe

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 05-19-2010, 11:11 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 60
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 598 Times in 547 Posts
Most the time, 50/50 rear shocks will be a decent place to start, but the shock not being "pressurized" has nada to do w/"prevent my rearend from squatting all the way". The shock's valving controls how it damps the spring action and controls the squat or separation of the suspension.

Drag shocks are not for daily driving- there's a lot more to a good street shock than what many bare-bones "drag shocks" provide. Adjustable drag shocks will give better street performance but aren't a replacement for a good street performance shock.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 05-19-2010, 11:25 PM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 48
Posts: 9,871
Wiki Edits: 0

Thanks: 53
Thanked 623 Times in 553 Posts
The "Drag race only" warning on the shocks has to do with the valving of the shock, i.e. the rate the shock compresses or extends. They can and are used on the street by hot rodders who are drag oriented without problem, but they will not work good if handling is your goal, they are valved to the needs of drag racing.

Gas charged shocks do not in any real way hold the car up(you can compress them with your hand, how much lift do you think that gives to a 3000lb car? ). The pressurizing of a gas charged shock is there to prevent foaming of the oil in the shock,.... it is this oil doing the work in the valving of the shock.

Shocks will help with wheel hop, but won't correct hop caused by worn out bushings, springs, or poor design/mounting points. If you have bad wheel hop it is usually more than just shocks. If things are wrong or wore out the Edelbrock shocks won't help much either.

Just from the sound of it you need new springs and bushings. At 75,000 miles factory stuff is shot, sagged.

Do you have any sort of traction device on the rear suspension?? What kind of car/suspension?

Air shocks are the worst for wheel hop, they are not really a shock but an air spring. Jacking a car up (changing suspension link angles in the process) just to clear big tires is another prime cause of wheel hop. This is where proper wheel size and offset comes into play, sounds like you have the wrong offset if you have to jack the rear all out of shape to get them to clear.

If you want a shock to do double duty for Drags/Handling you will need to get a Double Adjustable shock that allows you to adjust both the extension rate and compression rate of the shock.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 05-19-2010, 11:26 PM
Registered User
 
Join Date: May 2010
Location: Vancouver, WA
Posts: 25
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I forgot to mention the drag race shocks I got are the Competition engineering by Moroso. 3-way adjustable. P/N c2720. Used with the stock springs, would this setup prevent me from squatting to the point of rubbing my rear tires? I have air shocks now that leak, and when they are empty, the rear-end sits way to low. I like it to sit higher in the rear. Would you recommend the Edelbrock gas shocks i mentioned before for my street/strip setup then cobalt? I am trying to get rid of my insane wheel hop. I am installing a strange Engineering rearend this weekend. summit P/N PRSA05 with 3.73 gear ratio and plan to drag it in the not so distant future.

Just seen ericnova joined the conversation. It isn't really that I rub without the air-shock being maxed, I just like the look it gives. But completely empty and I dump the throttle, it will rub, or if I take a tight corner to fast it will also rub. so basically what you are saying, is that the spring is what mainly holds the car up? If this is the case, should I get stiffer rear springs to give me that look I like and ditch the air-shocks and use the adjustable shocks? I know for sure my springs and air-shocks are old and worn, and currently don't use any traction bars but plan to invest in the Lakewood traction bars in the future.

Last edited by bammazon; 05-19-2010 at 11:33 PM.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 05-19-2010, 11:33 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 60
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 598 Times in 547 Posts
The too-low rear ride height is telling you the rubber suspension pick up points are likely shot, along w/the rear springs worn out.

I'd say to rebuild the rear suspension (along w/the front, for that matter) and go from there. A tight suspension w/properly adjusted drag shocks will be close, unless you have a lot of HP and/or hook, in which case add-on traction aids might be also needed.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 05-19-2010, 11:37 PM
Registered User
 
Join Date: May 2010
Location: Vancouver, WA
Posts: 25
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
OK, front suspension has been freshened up recently, and when I install the new rear end this weekend I plan to add the rest of the Energy suspension kit and new springs as well. Thank you guys for helping aid my decision. I like the sounds of the adjustable drag shocks, just didn't want to have anything bad happen from using them with my current setup.
Reply With Quote Quick reply to this message

Recent Suspension - Brakes - Steering posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Drag race launch? Backwoods Hotrodding Basics 10 03-31-2010 08:19 PM
Pacific NW Drag Race Fans... Blazin72 Hotrodders' Lounge 0 07-05-2007 08:16 PM
F-350 Crew Cab drag race!!!!!! hot_rod_kid Hotrodders' Lounge 5 02-05-2004 02:48 PM
First Drag Race Advice bjam2 Engine 17 10-12-2002 05:57 PM
Drag race Wing For S10 Pickup B-D Drag Racing Body - Exterior 3 08-25-2002 09:15 AM


All times are GMT -6. The time now is 01:28 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.