Join Date: May 2007
Location: Peoria, AZ
Posts: 9,153
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Re: Spring guidance for a 1990 ZR1; FE1 = FHA? From England, GB
Quote:
Originally Posted by Hib Halverson
My data shows the FHA spring was not used on a ZR1, but never say "Never" as according to Marc Haibeck, a lot of ZRs had FHAs
The FHA spring was 93.1 NM/mm which converts to 525 lb/in.
Here in the States, there are other sources for used Corvette parts than eBay and some of those vendors might ship internationally. Use keywords "used Corvette parts", "Corvette salvage", "Corvette dismantlers"
"J&D Corvettes" in California and "Corvette Recycling" in Utah are places to start.
Neither of those Zip Products springs will work as the base spring is likely a 22173028 which is 60 N/mm and the "sport" spring (out of stock) is likely an FHB at 115.5 N/mm.
If you can't find an FHA used the FSK may work
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Your right Hib never say never as the front spring in my 90 was/is a FHA so... Mr Haibeck was correct as normal 
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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
Last edited by GOLDCYLON; 01-19-2024 at 12:14 PM.
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