Chumpcar Coilover Question
#1
Chumpcar Coilover Question
I have spend many hours searching on this topic, but I cannot figure it out and I need some help. I've been lurking here for a while and reading others posts has served me well until now.
I have an NA Chumpcar. I am looking to install a coilover setup (80 points). I believe Bilstein HDs are now point free. I believe KYB OEM replacement foam bumpstops are point free and I can cut them down. I am told I must retain the OEM NA top hats.
1. What should I do for an upper spring centering unit? Will the all star coilover tops be sufficent to center the spring? http://www.summitracing.com/int/part...4174/overview/ It looks like the AWR units are discontinued.
2. Given that the NA top hat allows for less travel and a spring centering unit looks like it might reduce travel further, do you think 6" 550lbs front, 7" 350lbs rear with 5" allstar sleeves will work?
Thanks.
I have an NA Chumpcar. I am looking to install a coilover setup (80 points). I believe Bilstein HDs are now point free. I believe KYB OEM replacement foam bumpstops are point free and I can cut them down. I am told I must retain the OEM NA top hats.
1. What should I do for an upper spring centering unit? Will the all star coilover tops be sufficent to center the spring? http://www.summitracing.com/int/part...4174/overview/ It looks like the AWR units are discontinued.
2. Given that the NA top hat allows for less travel and a spring centering unit looks like it might reduce travel further, do you think 6" 550lbs front, 7" 350lbs rear with 5" allstar sleeves will work?
Thanks.
#5
throw in a set of spring rubbers and call the suspension done. best part is you can pull them if it starts to rain.
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#6
Cpt. Slow
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Yeah, local team has run a Miata with just bump stops, no springs. Worked well. Basically high rate springs. Best part is you don't really need a quality shock. Best setup? No. But they got 4th or 5th IIRC.
And Brain, he did say he's running Bilsteins, not stock shocks.
From personal experience, you'll want a 7" front, 6" rear, or 6" all around. My car is pretty light, but not as light as I could make it, and I can BARELY get low enough with a 7" spring in the back, and I still want comfy low, not race low.
And Brain, he did say he's running Bilsteins, not stock shocks.
From personal experience, you'll want a 7" front, 6" rear, or 6" all around. My car is pretty light, but not as light as I could make it, and I can BARELY get low enough with a 7" spring in the back, and I still want comfy low, not race low.
#7
Thanks for all of the replies.
If you guys think this is a bad idea I'm open to suggestion. The spacer idea has essentially the same points value as springs/coilovers (or best case 1/2).
If stock spring rates can be cut/increased say 50% over factory, I figured it would be potentially riding heavily on the bumpstops. I figured the benefits of coilovers compared to cut stock springs would be: higher spring rate, ride height could probably be lower/better, corner weighing. Given that other options for a similar number of points would be header or sway bars, I figured coilovers with higher spring rates would be better. Agree/disagree?
Do others agree that an upper spring centering unit is not required with NA top hats?
If you guys think this is a bad idea I'm open to suggestion. The spacer idea has essentially the same points value as springs/coilovers (or best case 1/2).
If stock spring rates can be cut/increased say 50% over factory, I figured it would be potentially riding heavily on the bumpstops. I figured the benefits of coilovers compared to cut stock springs would be: higher spring rate, ride height could probably be lower/better, corner weighing. Given that other options for a similar number of points would be header or sway bars, I figured coilovers with higher spring rates would be better. Agree/disagree?
Do others agree that an upper spring centering unit is not required with NA top hats?
#8
Chump racing in general is a bad idea. but we do it anyway.
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info@ogracing.com
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800.934.9112
703.430.3303
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#11
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I have spend many hours searching on this topic, but I cannot figure it out and I need some help. I've been lurking here for a while and reading others posts has served me well until now.
I have an NA Chumpcar. I am looking to install a coilover setup (80 points). I believe Bilstein HDs are now point free. I believe KYB OEM replacement foam bumpstops are point free and I can cut them down. I am told I must retain the OEM NA top hats.
I have an NA Chumpcar. I am looking to install a coilover setup (80 points). I believe Bilstein HDs are now point free. I believe KYB OEM replacement foam bumpstops are point free and I can cut them down. I am told I must retain the OEM NA top hats.
OEM-replacements are point free. Non-OEM components are 10 points per component. Cutting an OEM-like bumpstop is point free, but replacing it with a higher grade bumpstop is a 10 point penalty.
FYI, my new Chump project, picked it up last weekend. 92 Infiniti G20 with the SR20DE. It's very similar to a Sentra SE-R, but much cheaper to buy.