View Full Version : Comp. Engineering drag shocks


Taubr Unit
01-11-2007, 04:55 PM
I know a lot of people use eaither stock or QA1's. I know the 98+ have better rear shocks compared to my '94. How do Comp. Engineering shocks compare to my stock ones. I dont wanna dump $300 on QA1's for the rear but $80 for Comp. Eng. are do-able. Worth the money or not much better then stockers. I already got everything else (ta, panhard bar, sway bar, lca's springs) so a set of shocks will finish it all off. What u guys think.

gator's 99TA
01-11-2007, 06:21 PM
i just went 1.38 60' on the comp engineering cheapys. 3 way adjust. they work on a good track but i dont think they are nearly as consistent. i go as many 1.4-1.5 as i do 1.3 lol

kp
01-11-2007, 06:33 PM
1.28-1.29 60's all day long on them here. Consistant enough to win bracket races with ;)

Taubr Unit
01-11-2007, 06:43 PM
ok, nuff said. There sold for me. Thanks guys for no bullshitting around.

gator's 99TA
01-11-2007, 06:57 PM
1.28-1.29 60's all day long on them here. Consistant enough to win bracket races with ;)

It must be a black ls1 thing ;)

BADFNZ
01-11-2007, 07:42 PM
It must be a black ls1 thing ;)

Must be because mine have worked great. No 1.2s or 1.3s, but plenty of low 1.5s on drag radials and absolutely no other suspension mods. I'd say they're worth $80.

Matt D
01-11-2007, 07:47 PM
It must be a black ls1 thing ;)

It is a black thing ;)

Jerry,

You knew my black car's setup. I cut 1.46 60fts on drag radials, Cam only, 3300 raceweight. I will be putting them in this car as well. Make sure you throw an airbag in the rear passenger spring as well. :nod:

Matt D
01-11-2007, 07:48 PM
P.S.

BADFNZ, I love the signature :lol:

Jonathan@Tick
01-11-2007, 09:01 PM
1.2's all day long with the comp engineering shocks on drag radials! They probably have about 10,000 street miles on them now and still work great.

gator's 99TA
01-11-2007, 09:19 PM
1.26? damn! what setting do you guys run? 50/50?

n2o
01-11-2007, 10:19 PM
1.5x on drs with the old setup comps on the back. I can't wait to try them out with the new motor.

Magnet
01-11-2007, 11:20 PM
:hijack: sorry but i was wondering do i need adjsutables on front and back or just front? i'm a newb :(

Taubr Unit
01-12-2007, 12:07 AM
yea, what setting are they on??

Matt:
I do have a air bag in there. I got the eibach drag springs and it came with a bag, i got it set at 10psi. And i know your car hooked, iv seen it in action.

Matt D
01-12-2007, 12:15 AM
yea, what setting are they on??

Matt:
I do have a air bag in there. I got the eibach drag springs and it came with a bag, i got it set at 10psi. And i know your car hooked, iv seen it in action.


I always had mine set on 50/50 and would pull the wheels on the street :D

n2o
01-12-2007, 11:19 AM
Front will help.

JoeyAnderson
01-12-2007, 11:22 AM
1.2's all day long with the comp engineering shocks on drag radials! They probably have about 10,000 street miles on them now and still work great.Yes sir... Jonathan's car hooks a drag radial HARD on these cheapo shocks. :)

His are set to 50/50 just like mine are.

As I search for more in depth ways to whittle my 60' down, I'll likely replace my CE Drag Shocks with a set of QA1s to match the front.

...but for now, I'll settle with my consistent 1.4x 60's with them and the 6spd. :)

gator's 99TA
01-12-2007, 11:57 AM
looks like 50/50 is the setting that is most popular. i run that setting. i remember KP saying the same thing in the past

mthegodfather
01-15-2007, 03:12 PM
Where did everyone order there Comp. Engineering drag shocks from?

Taubr Unit
01-15-2007, 03:20 PM
speed inc has um. $79.99 a pair... There a sponsor on here -------->

98Z28CobraKiller
01-15-2007, 06:36 PM
What options are there for the front suspension? I spent all of my money and didn't do the research on the suspension. I bought a set of SLP Bilsteen's with springs and everything all the way around before I knew any better. I went out to the track for the first time last Wednesday and it was ugly. The best I could muster was a 12.35 @ 122 MPH w/ a 2.04 60'. LOL. Pretty sad. I am 325/15/50 Nitto DR's and I had to let out in every gear as I had absolutely no traction anywhere. When I hit 3rd (M6) the car went sideways (pretty scary as it was my first time getting sideways in 3rd) on the first pass. My second pass was even worse. I went 12.85 @ 116 MPH. I actually spun so bad when I hit 3rd that I never got traction at banged the rev limiter. Shifted into 4th and bogged thru the traps. After that I decided that I didn't need to run anymore until I fix the suspension. My raceweight is 3450+330lbs (worth of me). I have no wheel hop at all. I have an adj panhard, non-adj torque arm (it was free) and tubular LCA's right now. I would love for some of you "dead hookers" to give me some pointers. I really need to do something on the cheap for now as I am kind of broke at the moment.

Here's my question, can I salvage any part of my current Bilsteen setup? Is there a soft front shock/strut that I can get cheap to help transfer weight? My GTO (dialy driver) squats when I hit the gas, the Z doesn't move any weight at all to the rear.

Thanks in advance.

yak
01-16-2007, 12:24 AM
Jerry, 50/50 is the shit. put em there and forget about em. mine drive great on the street and were good enough to pull a couple 1.5x 60's on a 255 radial.

98Z28CobraKiller
01-16-2007, 10:20 AM
Would there be any benefit for me to put these in the rear vs my new SLP Bilsteens with the new Eibach springs? Car is not lowered.

rmata
03-14-2007, 02:04 PM
I just ordered the Comp shocks too. I was wondering what springs you guys are using though. I don't want to put my stockers for the meantime while I figure this out. So the sooner your info, the better

Taubr Unit
03-14-2007, 05:00 PM
i got the eibach pro launch drag springs front and rear.

Matt D
03-14-2007, 06:00 PM
I have QA1 "R" shocks with 275lb springs in the front and the Comp Eng shocks in back with stock springs that are cut.

JaSSon
03-14-2007, 10:32 PM
Im running the Comps in back set on 50/50 and QA1s up front on stock springs.

Taubr Unit
03-15-2007, 12:12 AM
Off topic for a sec. but jaSSon, how do yuo go from a 10.74 n/a and 10.29 on n2o? Small shot or what?

xpndbl3
03-15-2007, 12:30 AM
it's probably a 100 shot

98Z28CobraKiller
03-15-2007, 09:32 AM
yeah, it says 100 NX next to the 60' in his sig.

Taubr Unit
03-15-2007, 01:49 PM
ahh yes it does, im a little slow. :bang: I would think a little faster then that.. no?

PunkNPonys
03-15-2007, 03:09 PM
Man i was going to spend the money and get the Strange rear drag shocks but after reading this thread i think i am just going to go with the Comps for the rear and Strange for the fronts. Is there a tool required to change the setting or is it just a turn knob?

Matt D
03-15-2007, 04:50 PM
ahh yes it does, im a little slow. :bang: I would think a little faster then that.. no?

It depends on his setup. I sprayed my 00 with a 150 wet shot once and only gained a second. He might be spraying through the converter.

Taubr Unit
03-15-2007, 06:10 PM
Man i was going to spend the money and get the Strange rear drag shocks but after reading this thread i think i am just going to go with the Comps for the rear and Strange for the fronts. Is there a tool required to change the setting or is it just a turn knob?


you actually have to adjust it when there out of the car. You push the rod that coes out the shock all the way down and turn it and you can feel 3 clicks. So you must set it before you put it in and if you wanna change it you need to take the shocks out.

brandonppr
03-15-2007, 06:56 PM
are these the competition engeneering part number C2700?

Matt D
03-15-2007, 08:37 PM
are these the competition engineering part number C2700?

Yes. Let me know if you need some :)

JaSSon
03-15-2007, 09:01 PM
Off topic for a sec. but jaSSon, how do yuo go from a 10.74 n/a and 10.29 on n2o? Small shot or what? Im running a real loose PT4000 plus I have an reverse split cam. The car is not built for spray but its there if I need it. Im fixing to hit it with a 150 shot to get stock bottom end 9s :drive:

slick1851
03-16-2007, 08:50 AM
I think im going to pick these up....

brandonppr
03-16-2007, 09:05 PM
Yes. Let me know if you need some :)
yeah pm me a price and if I bought them now do you have them in stock and could go out right away

luda0840
03-16-2007, 11:21 PM
how good are they on the street? my stock shocks are leaking and they handle like crap

PunkNPonys
03-19-2007, 01:42 PM
how good are they on the street? my stock shocks are leaking and they handle like crap

I would also like to know the answer to this question. Thanks in advance.

1SlowFormula
03-19-2007, 02:23 PM
you actually have to adjust it when there out of the car. You push the rod that coes out the shock all the way down and turn it and you can feel 3 clicks. So you must set it before you put it in and if you wanna change it you need to take the shocks out.

I just ordered a set that haven't come in yet, are there instructions that come with them that explain the adjustment? If not what setting is 50/50. For example all the way clockwise, or middle setting???

black_z
03-19-2007, 03:57 PM
How are the 50/50's on the street in terms of handling compared to stock?

Razor_Blade
03-21-2007, 11:20 AM
I just ordered a set that haven't come in yet, are there instructions that come with them that explain the adjustment? If not what setting is 50/50. For example all the way clockwise, or middle setting???


The instructions are printed on the box. Adjustment is fairly straight forward.

brandonppr
03-21-2007, 12:32 PM
The adjustments are: 70/30, 60/40, and 50/50
what is the differences in the settings?
is the higher or lower number stiffer?
is the first or second number compression?
Lets say you are running 50/50 and the track prep is bad and you needed to hook a little better. Would you keep it as is or go with another setting? which setting?
would these settings be correct:
Traction/ET/Track Condition
70/30 best/slowest/worst
60/40 good/good/good
50/50 worst/Fastest/best

Razor_Blade
03-21-2007, 12:45 PM
The adjustments are: 70/30, 60/40, and 50/50
what is the differences in the settings?
is the higher or lower number stiffer?
is the first or second number compression?
Lets say you are running 50/50 and the track prep is bad and you needed to hook a little better. Would you keep it as is or go with another setting? which setting?
would these settings be correct:
Traction/ET/Track Condition
70/30 best/slowest/worst
60/40 good/good/good
50/50 worst/Fastest/best

On the box it gives an explanation of the settings and when to use them. I can't remember right now. if no one else chimes in with the info, I will post it up what the box says tonight.

1SlowFormula
03-21-2007, 02:34 PM
UPS tracking show they should be at my house today, and if nobody else posts it up then I will post up what the box states tonight...

According to Summit however, it states:
These Competition Engineering adjustable drag shocks offer a 3-way valving system to dial-in the extension/compression ratio needed for any track condition. The front shocks have three adjustable ratios of 90/10, 80/20, and 60/40. The ratios for the rear shocks are 70/30, 60/40, and 50/50. These numbers represent the percentage of force required to extend (first number) and compress (second number) the shock. By changing the settings on the front and rear shocks, you can dial-in the car to raise the front on initial launch for weight transfer, and then settle smoothly for a final charge to the finish line.

1SlowFormula
03-21-2007, 08:27 PM
OK, I'm a little confused now...

I got home to find my new shocks in a plain brown box with summit's part number, not a CE box, and there are absolutly no instructions anywhere...

The shock are the CE and correct part number with C2700 in the side so I guess to save money they send them to summit in plain boxes...

So on the shock there are 3 settings XF, F, and R... What are these settings? Can I assume R is Race?

Thanks guys...

Razor_Blade
03-21-2007, 10:45 PM
OK, I ordered mine from Speed Inc. who happen to be a sponsor here. They came in a nice box with pictures and instructions printed right on it.

Here ya go. BTW, this is for rear shocks. Fronts are different.

R = 50/50
F = 40/60
XF=30/70

To adjust:
Fully comress shock.

Note: When adjusting shock, keep in the upright position.

With shock still fully compressed, rotate clockwise for several revolutions after "clicks" are heard. This action full engages the adjustment mechanism.

Rotate notch indicator to desired setting.


From the box: A 30/70 setting allows the rear body to compress with minimal resistance for maximum weight transfer - the ideal setting for a slippery track. When track conditions are perfect, the 50/50 setting will not overload the rear wheels preventing wheel hop.

Hope this helps!

brandonppr
03-21-2007, 11:09 PM
OK, I'm a little confused now...

I got home to find my new shocks in a plain brown box with summit's part number, not a CE box, and there are absolutly no instructions anywhere...

The shock are the CE and correct part number with C2700 in the side so I guess to save money they send them to summit in plain boxes...

So on the shock there are 3 settings XF, F, and R... What are these settings? Can I assume R is Race?

Thanks guys...

hmm,

Thats where mine are coming from. I was going to buy mine from byunspeed (they are the same price as summit) but I had to send something back and exhange it so I just got them from summit because shipping was not extra because they were already sending something to me.

I was going to go with a 2 way adjustable shock but with all the recent mods my mod buget is getting tighter so I figured these had to be better than the stock shocks that have been on the car for 9 years. These should hold me over for a while I hope. :)

If someone has instructions please post them.

Edit: I was a little slow typing this, got distracted. thanks for posting instructions.

1SlowFormula
03-22-2007, 12:01 AM
Thanks guys this is a big help...

patriotformula
03-22-2007, 06:10 PM
Shocks seem like a good piece... I picked a set up. Only complaint is they're kinda confusing. You can click them around like all the way around the shock. I guess as long as you land on one of the desired 3 settings that means that's how they're set? Then what you just let the shock out and put it on the car. Just wanna make sure before I take her to the track.

LS1rulz
05-25-2007, 10:56 AM
You ever get these figured out?

omcar
05-25-2007, 02:09 PM
You may wish to consider a Random Technology adjustable torque arm

BLOWN SS/T
12-11-2007, 06:29 AM
Hows everyone doing with these shocks? Any updates? How do they hook on the street?

I bought a set from speed inc and they were a bad set, they wouldn't click, speed inc took care of it and sent me a new pair.
Don't know if im just being skeptical because of the bad set, but when adjusting they click all the way around and in real lightly were the settings are at.
I just got them in today and drove it around the block feels ok, are they suppose to do anything different, or how can I tell they're working correctly?

Matt D
12-11-2007, 07:40 AM
My times are in my signature. Still rocking the Comp Eng shocks :D

98Z28CobraKiller
12-11-2007, 08:37 AM
Here's a video from this weekend. I have the Comp Eng shocks in the back.
http://www.ls1tech.com/forums/showthread.php?t=827598

RAGENZ28
12-11-2007, 12:06 PM
How's the Transbrake problem coming 98z28? Do you have a post on the build up on your car?

I still have C/E's in mine.

kp
12-11-2007, 01:59 PM
Hows everyone doing with these shocks? Any updates? How do they hook on the street?

I bought a set from speed inc and they were a bad set, they wouldn't click, speed inc took care of it and sent me a new pair.
Don't know if im just being skeptical because of the bad set, but when adjusting they click all the way around and in real lightly were the settings are at.
I just got them in today and drove it around the block feels ok, are they suppose to do anything different, or how can I tell they're working correctly?

The CE shocks are still working fine for me, 8.90s (1.27 60') isnt bad for a set of cheap rear shocks, stock rear springs and SA Strange front shocks.

The car wont drive any different then regular shocks really, I use the 'middle' position, 40/60 or 60/40 or whatever it is..

Taubr Unit
12-11-2007, 02:11 PM
I bought a 9'' first, lol. Still need to get some.

98Z28CobraKiller
12-11-2007, 07:42 PM
How's the Transbrake problem coming 98z28? Do you have a post on the build up on your car?

I still have C/E's in mine.

Yeah, do search for my threads. I have discussed just about everything. Lots of tuning stuff in there also.

98Z28CobraKiller
12-11-2007, 07:44 PM
The CE shocks are still working fine for me, 8.90s (1.27 60') isnt bad for a set of cheap rear shocks, stock rear springs and SA Strange front shocks.

The car wont drive any different then regular shocks really, I use the 'middle' position, 40/60 or 60/40 or whatever it is..
+1....

BLOWN SS/T
12-14-2007, 05:38 AM
I can only dream right now of hooking up like your car in that video. Bad ass ride.

Thanks everyone, I tried launching my car a few times and all I got was a smoke show with the almost bald 18" 555R's. It's time for some MT's, I got a spare 10 bolt if anything.lol

djsanchez2
12-15-2007, 12:22 AM
Good to hear you fellas are having success with these shocks. Just nabbed a NIB set for $40 shipped.

What setting would you reccomend for a DD. Keep in mind, i don't mind pulling them to change the settings if need be. Also I will be using them, on the street, no track round here. So, also what would work good on the street, or is it really just T&E?

I'll also be going back to the stock springs with these.

Hrod382
12-15-2007, 12:32 AM
What's everyone doing up front?

I had CE's but they were just too inconsistant, put on some cheapy no names and lost height and about .01 but gained a good deal in consistancy. They junked out on me at the end of last year, car had a wicked wobble to it after the front end sat down.

Are the DA coil overs worth it? I'm thinking about AFCO's or QA1's on my '67, it's about to get a 548 (about 200 more horses) in it which should put me down in the 5.70's or 5.60's. We have scales so I can dial it in... That's the main reason I'm thinking it might be worth the cost.

djsanchez2
12-15-2007, 12:54 AM
Alot of the guys are going QA1 w/ either 300 or 275 springs up front. I'm going to follow suit when i get my 9"

RAGENZ28
12-15-2007, 01:23 AM
I have 275's up front 150's in the rear.

35th SS
12-15-2007, 03:04 AM
Alot of the guys are going QA1 w/ either 300 or 275 springs up front. I'm going to follow suit when i get my 9"


exactly what Im running on both cars.

daniel6718
02-02-2008, 10:53 PM
jus wondering if it is bad if mine dont click...one does but when it clicks it gets stuck and wont move?

djsanchez2
02-03-2008, 05:48 PM
That's kinda wierd. Did you try resetting them? (pump them 8-10 times then on last one, keep the piston in, and twist a few times til the lil mechanism engages) Then you should be set to go. If not call up the company you got em from and let em know.

BAKED
02-03-2008, 06:19 PM
1.37 60' on radials with CE rear shocks, air bag, stock front and rear springs and stock front struts.

I do have BMR SFC's, LCA's, PHB, and a bigger sway bar.

djsanchez2
02-03-2008, 06:26 PM
What tire and launch rpm? that's damned good!

daniel6718
02-03-2008, 06:34 PM
well i bought them used....and i tried went in and out like 8 times then tried to turn it but didnt work...

its pretty easy to pull out but hard to compress so i think its on 70/30? and stuck? any way to fix it? i dont see how it broke inside....doesnt leak any oil or anything

BLOWN SS/T
02-03-2008, 07:02 PM
I bought a new set from speed inc, and they would do the same thing. I didn't think they were right so speed inc said to call comp and comp said they were defected. I sent them back to Speed Inc and they shipped out a new set. And the new set clicked, somone on here said that for his monte carlo they wouldn't click but on his fbody they would.
More than likely they are bad, IMO.

BOLO
02-03-2008, 11:48 PM
I know a lot of people use eaither stock or QA1's. I know the 98+ have better rear shocks compared to my '94. How do Comp. Engineering shocks compare to my stock ones. I dont wanna dump $300 on QA1's for the rear but $80 for Comp. Eng. are do-able. Worth the money or not much better then stockers. I already got everything else (ta, panhard bar, sway bar, lca's springs) so a set of shocks will finish it all off. What u guys think.
Works here for me. See video below.

daniel6718
02-04-2008, 03:18 AM
fu** i bought these used and the guy said even though they dont click they still swap to each setting...i tried it and it feels the same..easy to pull the rod out and hard to go in...mayb comp will hook me up with another or this guy will make things right

daniel6718
02-05-2008, 08:53 PM
i tried to reset them and didnt work

djsanchez2
02-05-2008, 09:51 PM
Then they are prob. screwed up or defective. Most likely why they were sold in the first place to be honest. (or he didn't know)

I say you contact the seller and see if he'll right the wrong for you.

RAGENZ28
02-07-2008, 05:15 PM
I have C/E shocks on my rear and have used them since 1998 and they work great =) Buy then new and stop trying to save 20 bucks on a used set lol.

bowtierodder
02-11-2008, 06:02 PM
i just bought a set of these but they dont extend on their own like a normal shock, you have to pull them out. is this normal?

daniel6718
02-11-2008, 06:22 PM
yea thats how both of mine are...id like an answer on that also

GregWS6&z28
02-11-2008, 06:51 PM
from what ive' seen thats normal. the spring's gotta counteract the compression. mine also wouldnt adjust, but ill stick with them for now

djsanchez2
02-11-2008, 07:19 PM
Normal. Mine new outta the box had to be pulled out.

bowtierodder
02-11-2008, 08:29 PM
oh ok, just wierd cause ive never seen a shock not expand on its own.