whats the PN for the Comp spring? I work at an auto parts store and got a master catalog so I can post the specs of the spring.
PSN ID: Phatchance249
i dont like how the base is smaller.
i hope we find out they work though... it'd be nice to not have to spend $600 on a dual valve spring setup.
We all need somebody to believe in something...
From what I can see, our choices are to either go smaller or bigger, our spring size is fairly unique as far as aftermarket springs go. I have been searching for a spring to use with my W41's because I don't want to pay $20 a spring for the GM HO's and I don't want to cheap out for the NAPA ones.
PSN ID: Phatchance249
Yeah what Comp springs are those? And how much do they run per spring?
Paying someone to install parts and bragging about it being fast, is like watching someone bang your wife and being proud to raise their kids.
well if ron siebenick had any more NHRA (rocket parts) springs we could all use those... but he doesnt.
so were stuck... $500 for supertech VW DVS's... or $600+ for mantapart DVS's.
We all need somebody to believe in something...
I can GM HO springs for 16 a peice under employee discount;.. but thats still outragious $256 + tx
$12 each, not too bad...
http://www.summitracing.com/parts/CCA-26123-1
Brand
COMP Cams
Manufacturer's Part Number
26123-1
Part Type
Valve Springs
Product Line
COMP Cams Valve Springs
Summit Racing Part Number
CCA-26123-1
Number of Springs Per Valve
Single
Outside Diameter of Outer Spring (in)
1.105 in.
Coil Bind Height (in)
0.900 in.
Damper Spring Included
No
Spring Rate (lbs/in)
324 lbs./in.
Inside Diameter of Outer Spring (in)
0.745 in.
Valve Spring Style
Beehive
Coated
No
Quantity
Sold individually.
Notes
O.D. at top of spring is 0.943 in. and I.D. at top is 0.580 in.
Paying someone to install parts and bragging about it being fast, is like watching someone bang your wife and being proud to raise their kids.
Thanks, I will look in the catalog when I get home later.
Since I have not taken my head, or any head, off an LD9 I don't know how much smaller the spring can be. Is it easy/common to modify the spring perch/base area on the head? I'll also post the specs later of the springs I THINK might work, one is bee hive.
PSN ID: Phatchance249
well i removed the ld9 springs and attempted to install on the intake. they dont fit over the valve rotator or the exhaust shim. but i wonder if there are any shims or rotators that would fit our valves and these springs.
according to my findings we can do without the rotators.
We all need somebody to believe in something...
what about using a base cup or somthing to keep the spring from digging into the head persay?
yeah you'd have to.
We all need somebody to believe in something...
maybe the 4.6l mustang spring cups will work too. i'll order a cpl and check fittment. if i can find them
Well the springs I picked out of the Comp book are the ones you posed, PN: 26123,
There are titanium retainers available for them.
O.D. Top 0.943
I.D. Top 0.580
O.D. Bottom 1.105
I.D. Bottom 0.742
Seat Load 90 @ 1.470
Open Load 252 @ 0.970
Coil Bind 0.900
Rate 324 lbs/In
The only other springs listed with a coil bind height of 0.900 have a seat load of 200 @ 1.700.
Quote:
well i removed the ld9 springs and attempted to install on the intake. they dont fit over the valve rotator or the exhaust shim. but i wonder if there are any shims or rotators that would fit our valves and these springs.
So the base I.D. is too small?
I also have a Crane Cams book, I know they are out of business but many places still have their products. The front runner I picked out is: PN: 99891
O.D. Top N/A
I.D. Top 0.674
O.D. Bottom 1.212
I.D. Bottom 0.900
Seat Load 93 @ 1.550
Open Load 266 @ 0.950
Coil Bind 0.865
Rate 290 lbs/In
Max Net lift w/.060" clearance 0.625"
What do you think?
PSN ID: Phatchance249
well i measured the springs base it measured out at .875 of an inch or 7/.125's anyway the ld9 spring measured at 1and 1/.16's at the base.
crane is back in business.
We all need somebody to believe in something...
Quote:
crane is back in business.
Good to know
Does anyone have the specs of HO and LD9 springs? I turned up only a few scattered answers in my search and some contradicted others.
Please fill in the blanks and leave guess work or you heard/read something once type of info.
HO Springs:
Seat pressure - 85 @ ?
Coil bind - 0.918"
O.D. Top
I.D. Top
O.D. Bottom
I.D. Bottom
Open Load
Rate (lbs/In)
LD9 Springs:
Seat pressure - 60ish @ 1.4?
O.D. Top
I.D. Top
O.D. Bottom
I.D. Bottom
Open Load
Coil Bind
Rate (lbs/In)
PSN ID: Phatchance249
i believe those are the mantapart springs? i wanna say that's mantapart's ebay seller name, but i could be wrong.
Edited 1 time(s). Last edited Thursday, March 18, 2010 5:23 PM
yes, that is mantapart and they are trustworthy. ive bought from them online several times now.
but, those springs are better paper weights than they are being used for a purpose. unless you have secret cams or you do not care about max lift before coil bind and run HO cams on them they are basically worthless.
We all need somebody to believe in something...
He also has the Dual Valve spring w/ titanium retainers for sale. They are a bit spendy for me right now, anyone know anything about those?
PSN ID: Phatchance249
lol we'll soon find out all we need to know about them
We all need somebody to believe in something...
