BDE Systems lowering kit - ZR-1 Net Registry Forums

Norwegianmopar · 04-26-2021

Anyone got this on their ZR-1? Is it as good as it seems, both bushing kit and also the lowering bit? I see the bolts are longer than in other kits, gives more height adjustments.

Also, how much rear lowering is recommended before one must do the front as well?

http://www.bde-systems.com/1984-1996...-complete-kit/

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G8nightman · 04-27-2021

Get Coilovers

Norwegianmopar · 04-27-2021

Quote:

Originally Posted by G8nightman

Get Coilovers

Different ball game money wise [emoji4]

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G8nightman · 04-27-2021

Leave as is

bowtiguy · 04-27-2021

I've got a complete midamerica C4 lowering kit I'd sell and ship to you. It looks like they are out of stock currently. Its new and unused. They sell for $45USD new. I open to offers.

https://mamotorworks.com/corvette/pr...car-set-602712

Norwegianmopar · 04-28-2021

Quote:

Originally Posted by bowtiguy

I've got a complete midamerica C4 lowering kit I'd sell and ship to you. It looks like they are out of stock currently. Its new and unused. They sell for $45USD new. I open to offers.

https://mamotorworks.com/corvette/pr...car-set-602712

Hi.
Please send me a PM.
Thanks.

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Ccmano · 04-28-2021

There no big trick to lowering. In the back get the longest bolts you can find. The normal lowering kits will only get you about an inch. If that's all you want, great. The front requires no "kit". The wedges they sell a useless. Simply remove the spring, remove the aluminum shims, cut the top rubber spring bushings down to about 1/4 inch above the spring surface and cut the aluminum mounting brackets down by about an inch (to match the height of the spring at the bushing where it mounts). The remaining shims go on the bottom of the brackets, otherwise your bolts will be too long. Then reassemble and get an alignment. If you don't want it quite that low in the front leave some of the aluminum shims in place above the spring. This, btw, is how Haibeck does it. One word of caution. I've seen several cars, my own included, that get "Darty" and experience tramlining when lowered, especially with aftermarket wheels. While I haven't isolated the problem completely I suspect it's "bump steer", the suspension geometry having sufficiently changed at the tie rods to cause wheel angle changes over ruts and bumps in the road. I'm currently looking at special Baer "bump steer tie rod ends" to solve this. I'd be interested to know if others have experienced this problem and how you solved it?
H

tf95ZR1 · 04-28-2021

And then be careful of driveways, speed bumps,
and concrete parking stops.

tccrab · 04-29-2021

I've always liked the look of a lowered C4.
At standard ride height i have to be careful going over speed bumps, and going over curbs to get in and out of driveways.
Lowered cars, you have to be careful driving over the painted lines on the street.
Maybe if i lived someplace really flat and there were no speed bumps or painted lines on the streets....

'Crabs

04-26-2021	#1
Norwegianmopar Join Date: Mar 2018 Location: Norway Posts: 345	BDE Systems lowering kit Anyone got this on their ZR-1? Is it as good as it seems, both bushing kit and also the lowering bit? I see the bolts are longer than in other kits, gives more height adjustments. Also, how much rear lowering is recommended before one must do the front as well? http://www.bde-systems.com/1984-1996...-complete-kit/ Sent from my SM-G955F using ZR-1 Net Registry mobile app __________________ Roy Martin 1994 ZR-1 #112 Admiral Blue/Black Dana 4:10 Aluminum flywheel Corsa exhaust Watson headers Haibeck chip 470 HP/399 RWHP 1991 ZR-1 #400 White/Red (SOLD) Dana 4:10 Powder coated engine Haibeck performance chip Borla exhaust

04-27-2021	#2
G8nightman Join Date: Dec 2007 Location: NYC Posts: 1,189	Re: BDE Systems lowering kit Get Coilovers __________________ 90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD"

04-27-2021	#4
G8nightman Join Date: Dec 2007 Location: NYC Posts: 1,189	Re: BDE Systems lowering kit Leave as is __________________ 90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD"

04-27-2021	#5
bowtiguy Join Date: Aug 2005 Location: Cali-rodo Posts: 270	Re: BDE Systems lowering kit I've got a complete midamerica C4 lowering kit I'd sell and ship to you. It looks like they are out of stock currently. Its new and unused. They sell for $45USD new. I open to offers. https://mamotorworks.com/corvette/pr...car-set-602712

04-28-2021	#7
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	Re: BDE Systems lowering kit There no big trick to lowering. In the back get the longest bolts you can find. The normal lowering kits will only get you about an inch. If that's all you want, great. The front requires no "kit". The wedges they sell a useless. Simply remove the spring, remove the aluminum shims, cut the top rubber spring bushings down to about 1/4 inch above the spring surface and cut the aluminum mounting brackets down by about an inch (to match the height of the spring at the bushing where it mounts). The remaining shims go on the bottom of the brackets, otherwise your bolts will be too long. Then reassemble and get an alignment. If you don't want it quite that low in the front leave some of the aluminum shims in place above the spring. This, btw, is how Haibeck does it. One word of caution. I've seen several cars, my own included, that get "Darty" and experience tramlining when lowered, especially with aftermarket wheels. While I haven't isolated the problem completely I suspect it's "bump steer", the suspension geometry having sufficiently changed at the tie rods to cause wheel angle changes over ruts and bumps in the road. I'm currently looking at special Baer "bump steer tie rod ends" to solve this. I'd be interested to know if others have experienced this problem and how you solved it? H __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. Last edited by Ccmano; 04-28-2021 at 01:44 PM.

04-28-2021	#8
tf95ZR1 Join Date: Aug 2005 Location: Northridge, CA Posts: 1,461	Re: BDE Systems lowering kit And then be careful of driveways, speed bumps, and concrete parking stops. __________________ 1995 ZR-1 #106 Blk/ Blk Owned by me since 2000. 93K miles, but not on motor :-) Mods the way I want it, Not afraid to drive it!

04-29-2021	#9
tccrab Join Date: Oct 2004 Location: Folsom CA Posts: 1,655	Re: BDE Systems lowering kit I've always liked the look of a lowered C4. At standard ride height i have to be careful going over speed bumps, and going over curbs to get in and out of driveways. Lowered cars, you have to be careful driving over the painted lines on the street. Maybe if i lived someplace really flat and there were no speed bumps or painted lines on the streets.... 'Crabs __________________ TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B]