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Author
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Topic: coil over spring whats a good rate to buy
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99gt-UJSTLST
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Member # 584
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posted
 
 
im thinking of getting a d&d k-memeber kit with adjustable struts
I was thinking of buying 150# springs
I now it will be good for the track but how good will it be for street driveing
Im not goin to drive the car much on the street
maybe once a in a great while
should i go 150 with 90/10 or maybe 250 with adjustble struts
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SOUTH BAY STANGS
MINOR BOLT ON'S
www.southbaystangs.com
Posts: 2558 | From: SAN JOSE CA | Registered: Nov 2001
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4RS FED
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Member # 2067
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posted
i have a set of 175, and it is way to soft for a 4 cylinider engine..... i cant imagine a v8.. the 175 bottom out the strut every bump
the 250's i put in are just barely ok, it bottoms out over some bumps. it also feels like it has alot of weight transfer
i would suggest nothing less than 250's
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i have a twin turbo mustang and you don't!
Posts: 3686 | From: 650 | Registered: Nov 2002
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BlackNGold
CaliforniaFords.com
Moderator
Member # 655
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posted
Yeah, I think the 150# spring might be a little weak...A typical coil-over spring rate for street performance handling would be 350#...I'd suggest a 250# for drag... ![[patriot]](graemlins/patriot.gif)
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-SLOWER TRAFFIC KEEP RIGHT-
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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66 AC COBRA
Nitrous King
Member # 904
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posted
quote:
Originally posted by 99gt-UJSTLST:
im thinking of getting a d&d k-memeber kit with adjustable struts
I was thinking of buying 150# springs
I now it will be good for the track but how good will it be for street driveing
Im not goin to drive the car much on the street
maybe once a in a great while
should i go 150 with 90/10 or maybe 250 with adjustble struts
also think about it, 175# spring is a very good drag spring for a 302 based fox drag car, no ps, ac, barely any weight on front
then ur car, power steering, dont know if u have ac, plus the weight of the supercharger, and sn95's are just heavier
i think a 250# would be a good drag spring for u since ur car has more weight to deal with on the front
im gonna be using 175's but my car will weigh 2800 pounds
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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Jeff S
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Member # 371
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posted
DO NOT GET COILOVERS. Get a set of Moroso "Trick" drag springs.
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'90 Mustang LX: 8.53 @ 157.92 w/ 1.33 60' on DR's
'10 ZR1: FOR SALE
'14 E63 S: RENNtech ECU
'04 Gallardo: UGR TTG
Posts: 2121 | From: San Jose, CA | Registered: Aug 2001
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John91coupe
CAFords OG
Member # 18
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posted
I've got the 175 lb springs on mine. My car is definitely nose heavy due to the heavy R block, blower, intercooler, intercooler tubing, stock hood, etc. My spring adjustment collar is about midway on the threaded sleeve and the ride height is about stock. I could easily go to a lower rate spring and adjust the collar higher on the strut to get more stored energy in the spring. In my case, the 150 lb spring would work fine and I am also considering a 130 lb spring. These springs are all 14" long so the length has a lot to do with how the suspension will work. Some are 12" with the same lb rating so you need to know what the at rest length is. Fortunatrly they are cheap enough to try different ratings to see what works best.
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D-2R ProCharged R302 331
1.410 60 ft.
5.784 @ 122.92 1/8
8.953 @ 155.08
MM&FF Feature June 2003
Posts: 1361 | From: Grass Valley, CA | Registered: Sep 2000
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WANARNM
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Member # 587
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posted
quote:
Originally posted by Jeff S:
DO NOT GET COILOVERS. Get a set of Moroso "Trick" drag springs.
Why are the moroso springs better tan the coilovers?
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89’ Hatch. Completely stock.
Posts: 1390 | From: San Jose | Registered: Nov 2001
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Jeff S
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Member # 371
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posted
quote:
Originally posted by WANARNM:
quote:
Originally posted by Jeff S:
DO NOT GET COILOVERS. Get a set of Moroso "Trick" drag springs.
Why are the moroso springs better tan the coilovers?
They transfer weight better than a 130# 14" spring and you do not have to worry about coilbind.
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'90 Mustang LX: 8.53 @ 157.92 w/ 1.33 60' on DR's
'10 ZR1: FOR SALE
'14 E63 S: RENNtech ECU
'04 Gallardo: UGR TTG
Posts: 2121 | From: San Jose, CA | Registered: Aug 2001
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99gt-UJSTLST
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Member # 584
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posted
quote:
Originally posted by Jeff S:
quote:
Originally posted by WANARNM:
quote:
Originally posted by Jeff S:
DO NOT GET COILOVERS. Get a set of Moroso "Trick" drag springs.
Why are the moroso springs better tan the coilovers?
They transfer weight better than a 130# 14" spring and you do not have to worry about coilbind.
this woould be like getting a eibach drag spring kit, but only better, right
well I was goin coil over couse I plan to go turbo in about 6-8 months
and i need to put a k-member kit to get the turbo to fit corretly
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SOUTH BAY STANGS
MINOR BOLT ON'S
www.southbaystangs.com
Posts: 2558 | From: SAN JOSE CA | Registered: Nov 2001
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66 AC COBRA
Nitrous King
Member # 904
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posted
quote:
Originally posted by 99gt-UJSTLST:
quote:
Originally posted by Jeff S:
quote:
Originally posted by WANARNM:
quote:
Originally posted by Jeff S:
DO NOT GET COILOVERS. Get a set of Moroso "Trick" drag springs.
Why are the moroso springs better tan the coilovers?
They transfer weight better than a 130# 14" spring and you do not have to worry about coilbind.
this woould be like getting a eibach drag spring kit, but only better, right
well I was goin coil over couse I plan to go turbo in about 6-8 months
and i need to put a k-member kit to get the turbo to fit corretly
u can get a k member that still has mounts for the stock springs, but i dont know that with the spring cups that the turbo piping will fit
what kit and turbo size are u goin with
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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John91coupe
CAFords OG
Member # 18
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posted
I really don't think that most if not all Renegade, Outlaw, and any other lower classification car that allows front coilovers are installing them because they transfer weight worse than recalibrated stock style springs. Now if we were talking about a car on street tires or without much power then it probably wouldn't matter what type springs were up front.
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D-2R ProCharged R302 331
1.410 60 ft.
5.784 @ 122.92 1/8
8.953 @ 155.08
MM&FF Feature June 2003
Posts: 1361 | From: Grass Valley, CA | Registered: Sep 2000
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66 AC COBRA
Nitrous King
Member # 904
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posted
t-76 ![[Eek!]](eek.gif) thats alot for a 4.6, is urs still a 4.6 or has it been made larger
shit a q trim t-76 will make more power than ur chassis can take, unless u throw a cage in there to keep the car from twisting into a pretzel, what are ur goals rwhp wise, because that t76 will make 700rwhp all day long and not complain, over 800+ maxed
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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99gt-UJSTLST
¯
Member # 584
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posted
my goal 700+ but will see how things go
im currently working on suspension and transmission
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SOUTH BAY STANGS
MINOR BOLT ON'S
www.southbaystangs.com
Posts: 2558 | From: SAN JOSE CA | Registered: Nov 2001
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John91coupe
CAFords OG
Member # 18
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posted
My advice for you would be to go to Fun Ford Weekend and check to see how many 700+ HP cars have coilovers and how many have stock style springs. 50 to 0 I'd bet.
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D-2R ProCharged R302 331
1.410 60 ft.
5.784 @ 122.92 1/8
8.953 @ 155.08
MM&FF Feature June 2003
Posts: 1361 | From: Grass Valley, CA | Registered: Sep 2000
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66 AC COBRA
Nitrous King
Member # 904
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posted
quote:
Originally posted by 99gt-UJSTLST:
my goal 700+ but will see how things go
im currently working on suspension and transmission
well i guess a t 76 is in order, are u gonna switch to an 03 cobra block for the iron and the 6 bolt main caps, or just stick with a aluminum
what front spring u have doesnt make a shit of difference if the front ties are off the ground ![[Whoo Whooooo!]](graemlins/woowoo.gif) wheelie wheelie ![[worship]](graemlins/worship.gif)
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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Jeff S
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Member # 371
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posted
quote:
Originally posted by John91coupe:
I really don't think that most if not all Renegade, Outlaw, and any other lower classification car that allows front coilovers are installing them because they transfer weight worse than recalibrated stock style springs. Now if we were talking about a car on street tires or without much power then it probably wouldn't matter what type springs were up front.
It's not neccessarily that coilovers transfer weight worse than a stock type spring. It's the fact that the rate of the coilover spring you need in order to equal the weight transfer of a stock style drag spring causes problems on the street. Renegade/Outlaw cars are not driven on the street and do not have to worry about coilbind or the suspension bottoming out over bumps. Those are the problems a lot of street cars have when they try to install a 150 or 130 pound coilover spring up front.
[ October 30, 2003, 11:11 AM: Message edited by: Jeff S ]
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'90 Mustang LX: 8.53 @ 157.92 w/ 1.33 60' on DR's
'10 ZR1: FOR SALE
'14 E63 S: RENNtech ECU
'04 Gallardo: UGR TTG
Posts: 2121 | From: San Jose, CA | Registered: Aug 2001
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WANARNM
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Member # 587
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posted
Wow.. didnt think it was that hard to pick a spring.
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89’ Hatch. Completely stock.
Posts: 1390 | From: San Jose | Registered: Nov 2001
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99gt-UJSTLST
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Member # 584
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posted
quote:
Originally posted by 66 AC COBRA of CA PERFORMANCE:
quote:
Originally posted by 99gt-UJSTLST:
my goal 700+ but will see how things go
im currently working on suspension and transmission
well i guess a t 76 is in order, are u gonna switch to an 03 cobra block for the iron and the 6 bolt main caps, or just stick with a aluminum
what front spring u have doesnt make a shit of difference if the front ties are off the ground wheelie wheelie
I have my stock 2valve bottom which has cobra crank with manly I rods and brc forged pistons
Man I had this bottom end for so long, its the valve train that has given me problems but I think I may have figured it out
so will see it it puts down on my novi2000 1st then ill switch over to turbo
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SOUTH BAY STANGS
MINOR BOLT ON'S
www.southbaystangs.com
Posts: 2558 | From: SAN JOSE CA | Registered: Nov 2001
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66 AC COBRA
Nitrous King
Member # 904
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posted
oh yeah i forgot that u had a 2v
im guessing max ported heads and some big billet cams
are u having valve spring problems, like matt was with his cobra, i wan to see that thing with a turbo, let me get a ride in it, ill take u for a ride once mine runs ![[Big Grin]](biggrin.gif) , i think we are both a ways away from havin our cars where we want them to be
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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99gt-UJSTLST
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Member # 584
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posted
im getting their
check it out I just bought pre orderd this new intake
this should hold more boost then the plastic intake I have
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SOUTH BAY STANGS
MINOR BOLT ON'S
www.southbaystangs.com
Posts: 2558 | From: SAN JOSE CA | Registered: Nov 2001
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