ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 04-28-2011   #11
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
Default Re: Coilover too much spring?

Anyone have a pic of their rear coils. Need to check those out too.
XfireZ51 is offline   Reply With Quote
Old 04-28-2011   #12
GOLDCYLON
 
GOLDCYLON's Avatar
 
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
Default Re: Coilover too much spring?

Quote:
Originally Posted by -=Jeff=- View Post
yes i would get new springs..

but you need to decide on the rates

Im running...425 front/ 275 Rear. Happy
__________________
GOLDCYLON - 91 ZR-1 #2014
GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's)

GOLDCYLON - 11 CTS-V


Arizona State Director




91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
GOLDCYLON is offline   Reply With Quote
Old 04-28-2011   #13
GOLDCYLON
 
GOLDCYLON's Avatar
 
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
Default Re: Coilover too much spring?

Quote:
Originally Posted by XfireZ51 View Post
Anyone have a pic of their rear coils. Need to check those out too.

Dom heres some old pics before the Banski Trailing arm upgrade



__________________
GOLDCYLON - 91 ZR-1 #2014
GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's)

GOLDCYLON - 11 CTS-V


Arizona State Director




91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
GOLDCYLON is offline   Reply With Quote
Old 04-28-2011   #14
Daniel_Mc
 
Daniel_Mc's Avatar
 
Join Date: Jan 2007
Location: Pineville, LA
Posts: 586
Default Re: Coilover too much spring?

The spring is defiantly the wrong one; it is much tighter than it should be. You can get springs and pretty much everything you need from HRP World. http://www.hrpworld.com/index.cfm?fo...ction=category
That looks like the DRM set up with the hat that it has, if I am thinking correctly the EM kits use a different hat much like the Callaway set ups. How high up the sleeve do you have the perch?

Here are the DRM's on the '89 same as everyone's above: (Sorry for the crappy camera phone pictures)





Last edited by Daniel_Mc; 04-28-2011 at 12:23 PM. Reason: Fix Picture Link
Daniel_Mc is offline   Reply With Quote
Old 04-28-2011   #15
GOLDCYLON
 
GOLDCYLON's Avatar
 
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
Default Re: Coilover too much spring?

Quote:
Originally Posted by XfireZ51 View Post
Might explain the rubbing sound I get on a left hand sweeper. The rear tires are rubbing the inner fender well a bit towards the rear also.
Dom this is why I ditched the rear dog bones and went to the Banski trailing arms. After loading the new Poly bushings into the dogbones they were too fat with the new coilovers. I highly suggest you DO NOT do any alignment work until you are done with your suspension work. I also suggest you think about new trailing arms due to the clearance issues. GC
__________________
GOLDCYLON - 91 ZR-1 #2014
GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's)

GOLDCYLON - 11 CTS-V


Arizona State Director




91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
GOLDCYLON is offline   Reply With Quote
Old 04-28-2011   #16
Daniel_Mc
 
Daniel_Mc's Avatar
 
Join Date: Jan 2007
Location: Pineville, LA
Posts: 586
Default Re: Coilover too much spring?

Quote:
Just spoke w Randy at DRM. He suggested the 400/275. He described it as a tight ride without being bouncy. I asked about the 425s and he said that if he swapped them after having 400s, I wouldn't be able to tell the diff if i hadn't already known. So if I wanted to stiffen things up a bit, I may try the 450s. If I can get them soon enough, I would cancel my alignment to put these on.
I messed with different spring rates and still run (99% of the time) the 400/275 that DRM originally set the car up with. When I stepped up to a bigger spring the car developed a push at lower speeds but at faster tracks (TWS, TMS) the car responded nicely. Your results may vary depending on the bar set up you are running.

Daniel
Daniel_Mc is offline   Reply With Quote
Old 04-28-2011   #17
-=Jeff=-
 
-=Jeff=-'s Avatar
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
Default Re: Coilover too much spring?

Quote:
Originally Posted by GOLDCYLON View Post
Im running...425 front/ 275 Rear. Happy

ME TOO
__________________
1990 Corvette ZR-1 #1051
Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback
Late Model IH - Plenum
Coilovers - 4.10s
Custom Interior
NCM Lifetime Member #978
-=Jeff=- is offline   Reply With Quote
Old 04-28-2011   #18
scholtmj
 
scholtmj's Avatar
 
Join Date: Nov 2008
Location: Grand Rapids, MI
Posts: 384
Default Re: Coilover too much spring?

525!

scholtmj is offline   Reply With Quote
Old 04-29-2011   #19
GOLDCYLON
 
GOLDCYLON's Avatar
 
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
Default Re: Coilover too much spring?

Quote:
Originally Posted by scholtmj View Post
525!


Too much spring !!!
__________________
GOLDCYLON - 91 ZR-1 #2014
GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's)

GOLDCYLON - 11 CTS-V


Arizona State Director




91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
GOLDCYLON is offline   Reply With Quote
Old 04-29-2011   #20
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
Default Re: Coilover too much spring?

That's what mine look like.
XfireZ51 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 12:27 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2020