Possible to lower c4s with spam -10mm pdcc to sport spam height -20mm?
01-11-2016, 05:59 PM
#16
Rennlist Member
I think the TechART were specced at 0.8"F/0.5"R as I recall - I assume those are based on PASM
01-11-2016, 06:09 PM
#17
Track Day
Join Date: Jan 2015
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Unfortunately I can't confirm the height of the H&R's but everything I've read says they are lower.
I just re-measure the front from floor to fender at 26.75 compared to stock SPASM at 27.5...looks like they have settled a little more since install.
I just re-measure the front from floor to fender at 26.75 compared to stock SPASM at 27.5...looks like they have settled a little more since install.
01-11-2016, 06:14 PM
#18
Rennlist Member
I can certainly confirm my SPASM is 27.5" (just checked). Dude you get much lower than you are now you'll have to figure out how to make the tire oval 
01-11-2016, 06:43 PM
#19
Burning Brakes
Someone will correct me I am sure, but here is what I thought was the "hierarchy" of official Porsche suspension configurations... From memory:
The H&R spring set mentioned earlier is spec'd at a .25 mm drop, which is a tiny bit more than 1 inch overall (1 inch being = to 25.4 mm). If the SPASM drop is 20 mm, then H&R being .25 mm you are lower by .5 mm. The TechArt springs are just a bit less than H&R, aren't they?
Does this make any sense?
1. Non-S, Non-PASM or non-SPASM cars (in other words, the stock base 3.4L 911 Carrera) = 0.0 mm drop
2. S cars with PASM (standard equipment) or non-S cars with PASM option = .10 mm additional drop from #1 above
3. Non-S and S cars with SPASM (option) .10 mm additional drop from #2 above
So if you spec a build for an S car WITH SPASM, your total drop is .20 mm. You can't have SPASM without PASM, so it's not either - or. And we are talking the difference being the springs, not the strut assembly as far as I recall.2. S cars with PASM (standard equipment) or non-S cars with PASM option = .10 mm additional drop from #1 above
3. Non-S and S cars with SPASM (option) .10 mm additional drop from #2 above
The H&R spring set mentioned earlier is spec'd at a .25 mm drop, which is a tiny bit more than 1 inch overall (1 inch being = to 25.4 mm). If the SPASM drop is 20 mm, then H&R being .25 mm you are lower by .5 mm. The TechArt springs are just a bit less than H&R, aren't they?
Does this make any sense?
01-13-2016, 02:01 AM
#25
Rennlist Member
Someone will correct me I am sure, but here is what I thought was the "hierarchy" of official Porsche suspension configurations... From memory:
1. Non-S, Non-PASM or non-SPASM cars (in other words, the stock base 3.4L 911 Carrera) = 0.0 mm drop
2. S cars with PASM (standard equipment) or non-S cars with PASM option = .10 mm additional drop from #1 above
3. Non-S and S cars with SPASM (option) .10 mm additional drop from #2 above
So if you spec a build for an S car WITH SPASM, your total drop is .20 mm. You can't have SPASM without PASM, so it's not either - or. And we are talking the difference being the springs, not the strut assembly as far as I recall.2. S cars with PASM (standard equipment) or non-S cars with PASM option = .10 mm additional drop from #1 above
3. Non-S and S cars with SPASM (option) .10 mm additional drop from #2 above
is PASM-SPORT for PASM + sport springs etc...
The H&R spring set mentioned earlier is spec'd at a .25 mm drop, which is a tiny bit more than 1 inch overall (1 inch being = to 25.4 mm). If the SPASM drop is 20 mm, then H&R being .25 mm you are lower by .5 mm. The TechArt springs are just a bit less than H&R, aren't they?
Does this make any sense?
Does this make any sense?
01-20-2016, 03:51 PM
#26
Racer
Thread Starter
I bought a 2013 c4s this past sunday. It had PDCC and only pasm.... that is why I asked this question.
Thanks for all your comments and input...I have decided with techart springs..i wanted to keep my sport plus button functional as well as my PDCC.
I will soon create an intro thread.
Thanks for all your comments and input...I have decided with techart springs..i wanted to keep my sport plus button functional as well as my PDCC.
I will soon create an intro thread.
01-20-2016, 04:20 PM
#27
Drifting
01-20-2016, 07:15 PM
#28
Rennlist Member
01-20-2016, 07:25 PM
#29
Burning Brakes
Haha! Yeah! I caught that after posting and figured I'll sneak away... You finally caught me! Thanks. Yes 25mm = ~1 inch. NOT .25mm! The H&R sport springs I've had lower my C4S w/PASM by 25mm. That's a bit more than where it would be if I had PASM Sport option.
01-20-2016, 10:50 PM
#30
Drifting
Thanks.