Double Spring installation (pics within)
Thread Starter
Joined: Nov 2001
Posts: 8,484
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From: Cecil County Raceway!!!
Double Spring installation (pics within) well...after breaking another 941 valvespring not that long ago...I decided to bite the bullet and put double springs in the car. Unfortunately this required taking the heads off the car...decided to open up a BIG can of worms :
So, I pull the heads off and this is the first thing I see <img src="images/icons/rolleyes.gif" border="0">
That eyebrow thing on top of the piston...well...that is where the #1 intake valve decided to smack the piston when that spring broke a few months ago at the track during a burnout <img src="images/icons/shocked.gif" border="0"> Not good <img src="images/icons/grin.gif" border="0">
so I keep on tearing it apart until it looks like this
what a freaking mess
So what did I have done to the heads you might ask (while they were off the car):
1) double springs (ISKY doubles on the left, Comp 941s on the right, can't you see the difference) ...
2) valvejob and some milling for straightness:
after finally finishing the install (what a job) I take her out and romp on it a bit....my first impression:
<img src="images/icons/shocked.gif" border="0">
all I can say is DO NOT HIT THE GAS TOO HARD IN FIRST LOL
it pulls like a raped ape again. After some track testing...It appears I picked up 3-4 mph from the rebuilt heads...my old ones must've been in SUPER TIRED shape
So, I pull the heads off and this is the first thing I see <img src="images/icons/rolleyes.gif" border="0">
That eyebrow thing on top of the piston...well...that is where the #1 intake valve decided to smack the piston when that spring broke a few months ago at the track during a burnout <img src="images/icons/shocked.gif" border="0"> Not good <img src="images/icons/grin.gif" border="0">
so I keep on tearing it apart until it looks like this
what a freaking mess
So what did I have done to the heads you might ask (while they were off the car):
1) double springs (ISKY doubles on the left, Comp 941s on the right, can't you see the difference) ...
2) valvejob and some milling for straightness:
after finally finishing the install (what a job) I take her out and romp on it a bit....my first impression:
<img src="images/icons/shocked.gif" border="0">
all I can say is DO NOT HIT THE GAS TOO HARD IN FIRST LOL
it pulls like a raped ape again. After some track testing...It appears I picked up 3-4 mph from the rebuilt heads...my old ones must've been in SUPER TIRED shape
Thread Starter
Joined: Nov 2001
Posts: 8,484
Likes: 0
From: Cecil County Raceway!!!
Re: Double Spring installation (pics within) After breaking 3 941s....I'm now a firm believer myself <img src="images/icons/grin.gif" border="0">
Re: Double Spring installation (pics within) Fireball:
What are the part numbers and specs for the Isky double springs you used.
Did you use titanium retainers or differnt spring locators? If so part#'s?
Thanks
Eric
Was the valve that smacked the piston bent?
[ November 13, 2001: Message edited by: ws6rufus ]</p>
What are the part numbers and specs for the Isky double springs you used.
Did you use titanium retainers or differnt spring locators? If so part#'s?
Thanks
Eric
Was the valve that smacked the piston bent?
[ November 13, 2001: Message edited by: ws6rufus ]</p>
On The Tree
Joined: Nov 2001
Posts: 103
Likes: 0
From: Fowlerville, MI
Re: Double Spring installation (pics within) Cool pictures. When I got my heads from ARE, it was pretty amazing to see the difference in spring size <img src="images/icons/smile.gif" border="0">
Thread Starter
Joined: Nov 2001
Posts: 8,484
Likes: 0
From: Cecil County Raceway!!!
Re: Double Spring installation (pics within) it smacked pretty hard...not sure if it was bent or not <img src="images/icons/shocked.gif" border="0">
What I got was the MTI double package...I forgot all the part numbers they used <img src="images/icons/frown.gif" border="0"> It had retainers, locators, seals and ISKY springs.
Brian
What I got was the MTI double package...I forgot all the part numbers they used <img src="images/icons/frown.gif" border="0"> It had retainers, locators, seals and ISKY springs.
Brian
TECH Junkie
Joined: Nov 2001
Posts: 3,987
Likes: 0
From: Melbourne, FL
Re: Double Spring installation (pics within) I had a pretty good conversation with someone I'd consider "a very reliable source" yesterday. We discussed new valvesprings to go along with my upcoming cam change, and the new Comp 918 ovate wire springs were recommended, along with the new Comp Ti retainers for these springs.
The ovate wire/beehive shape design brings some interesting "theory" to the table, and I'm going to give them a shot on my car. They are stock diameter springs, so no machining is needed. They are very lightweight, so spring pressure doesn't have to be as great to control the valvetrain. I was told they'd be no problem with my new cam (not giving away any details yet) up to 7500rpm (notthat I'll spin it that high).
Am I 100% sure they'll be trouble free and work great in my car? Not yet, but they're worth giving a try...
The ovate wire/beehive shape design brings some interesting "theory" to the table, and I'm going to give them a shot on my car. They are stock diameter springs, so no machining is needed. They are very lightweight, so spring pressure doesn't have to be as great to control the valvetrain. I was told they'd be no problem with my new cam (not giving away any details yet) up to 7500rpm (notthat I'll spin it that high).
Am I 100% sure they'll be trouble free and work great in my car? Not yet, but they're worth giving a try...
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