BogusSVO

iTrader: (1)

just some quick info on stock replacement valve springs from SBI

Part Number #160-1280
Free length 1.910
O.D. 1.110
I.D. .754
Wire size .145x.178

Closed position
pressure & Length (intalled specs)
66@1.575 Valve closed
Open position
Pressure & length Valve Open
160@1.240
solid height
1.100
The factory installed springs should be close to this also.
EDIT: I just checked 7 sets of used 4G63 valve springs, and only came up with 1 and a half sets of decent used springs.
Most springs checked between 45-55 Lbs @ 1.575
I would say a good spring should test at 60lbs@1.575, Most spring manufactures, will allow 10% loss in spring tention for spring "break in"
I used a Rimac spring pressure tester.

Ferrea “beehive” Spring info

Specs on the springs
- Spring O.D. - 23.87mm / 28.07mm = .939/1.105
- Spring I.D. - 14.73mm / 18.85mm = .579/.742
- Seat Pressure - 90 lbs. @38mm = 1.496
- Open Pressure - 225 lbs. @28mm =1.102
- Rate Inch - 342 lbs.
- Coil Bind - 23mm =.905
- Max Net Lift – 13.5mm = .531
- Spring Material - PAC Alloy
http://www.extremepsi.com/store/cust...at=1417&page=1
BC 1100 Valve spring info
Spring Pressure:
BC1100 Seat:
Colsed 1.500" @ 95 lbs /
Open: 1.000" @ 235 lbs /
Coil Bind: 0.935"
(no machine work required)
http://www.briancrower.com/makes/mitsubishi/4g63.shtml

GSC Power-Division 4G63T Beehive Single Spring Set
Spring Pressures :
Seat @ 1.56"=68 lbs / .300"=160lbs / .400"=190lbs / .450"=210lbs / .625"= Coil bind.
http://www.vr-speed.com/store/gsc-po...63-p-2046.html

Kiggley springs
97lb Seat Pressure at 1.440"
325lb/in Rate
http://www.shop.kigglyracing.com/pro...2&categoryId=1


SuperTech:

Part # SPR-M1007S

O.D. 28.10mm
I.D. 20.00mm

Seated pressure (lbs.@mm) 76@39.6

Open (lift) 200@115

Max lift 14.90mm

Coil Bind 24.70mm

Rate (lbs/mm) 10.50mm

Spring material: Superclean Chrome Silicon Vanadium Steel Alloy


CROWER
O.D./I.D. - 1.1051/0.785
Open Pressure - 1.600=59# 1.560=70#
Seat Pressure - 1.100=190# 1.000=220#
Coil Bind - .910
Wire Diameter - .164


GSC Power-Division Beehive Valve Springs w/ Titanium Retainer and Chromoly spring seats (All 4g63)

Seat pressure:
Seat at 1.46"= 95 pounds
.300"= 200 pounds
.400"= 250 pounds
CoilBind .560"
GSC Power-Division 4G63T EVO 1-9 Stage 3 Beehive Valve Springs w/ Titanium Retainer Valvetrain Kit - Modern Automotive Performance
this makes me wonder what what the diffrence is beteen these spring and the GSC springs in the first post... I see the installed height differs but could it be the same spring, just checked at diffrent points?

Manley single spring Part # MAN-22125-16

Manley Performance Sport Compact Valve Springs

- Wound from super clean alloy 3
- Designed to handle aftermarket camshafts
- Revs up to 10,000 RPM with Manley titanium retainers

Part # 22125-16
Set of 16

O.D. / I.D. - 1.100"/.775"
Pressures - 66 @ 1.580"
175 @ 1.210"
237 @ 1.000"
Stock/Maximum Net Lift - .370"
.580"
Coil Bind - .950"
Rate (lbs./in.) - 294


Manley 26115 <<<<< Kit Part number
Spring part # 22115-16
Retainer part # 23115-16

104 @ 1.580 seat
237 @ 1.210" outer spring
269 @ 1.120" Inner spring
Max lift .370
Coil bind 1.070
359 lbs/in
Manley Performance - Sport Compact - Mitsubishi - 4G63 / 4G64

Manley Spring kit # 26125
Manley Performance - Sport Compact - Mitsubishi - 4G63 / 4G64
Retainer part # 23125-16
Spring part # 22125-16
Closed 66 @ 1.580
Open 175 @ 1.210 = .370 lift
237 @1.00 = .580 Lift
Coil bind .950

Manley Dial Valve springs
Dual Spring & Retainer Kit Specs:
O.D./I.D.: 1.160"/.870" .865"/.660"
Seat Pressure: 104 @ 1.580"
Open Pressure: 175 @ 1.210" 237 @ 1.000"
Stock/Max Lift: 0.370" 0.460"
Coil Bind: 1.070"
Rate (lbs./in.): 359
http://www.streettunedmotorsports.co...iners_4g63.htm


I will keep trying to add info as I find it.

JGNERAEVO9

So which are the best and top 3?