FiveSevenEagle

i didnt want to bother u guys with this old issue , but am in it right now i contacted Thunder and am waiting for their answer for the BEST valvesprings, pushrods,lucks, retainers to be use with the TR224 , i searched the forum looking for an answer and i founded many answers some with the comp 918 and stock retainers , lucks and pushrods !! and some with the hardened pushrods (stock length)

need ur opinion , cause ive heard that some comapnies just wants u to get the one they have and the one that cost u much !

wahhab

code4

iTrader: (30)

I used Thunder Racing hardended push rods, titanium retainers, & comps 918 springs on my TR 224. This was after doing TONS of research. If you had to drop any of the above, I would say the retainers as you can use the stockers. I would get the pushrods because people are bending the stockers with missed shifts with the stock cam. Putting in a hotter cam puts more stress on the push rods & I didn't want to have to go back into the engine.
Just my opinion.

KCFormula

iTrader: (4)

Technically you can resuse your stock retainers and locks and the 918s seem to be the standard with that cam. (same as I have) However I think the TR224 is a small base circle cam therefore you need a longer pushrod if you don't mill the heads.

1ScrudeDude

987's with my Comp 224.

YO-EL

iTrader: (6)

I just made the exact order.....

224/224 @ 114 the 918's, rods, titanium retainers..
Seems pretty basic..

the rods are the same 7.4's as Comps, just etched TR on them...

code4

iTrader: (30)

I have never heard this before?? I used 7.4 PR's?

VaNDaL*SS*

iTrader: (1)

Are the manley dual springs (rated at over .600+lift) to much spring for the tr224??? im thinking of getting this cam, but the heads im getting are coming with those springs.

-Ryan

freakynipples69

iTrader: (3)

I bought the patriot performance dual valve spring kit for extra insurance, and just incase I want to move up to a bigger cam in the future. Not to steal the post, but is there such a thing as TOO MUCH spring for a cam?

cbota

Just FYI, I just had a TR224 installed on my LS1 with prior installed ls1 ported heads. The heads I was told were not milled, just enough to clean them up. I had 7.4 PR in there, when they installed the TR224 cam they had to replace the 7.4 with 7.35 PR. They measured for the corr ect length with the cam install, just a thought.

VaNDaL*SS*

iTrader: (1)

I have heard that their is such a thing as too much spring. If the spring is too stiff and you dont have a cam that has enough lift then it could wear down ur cam faster, due to the excessive force on the cam.
Just something I've heard.

-Ryan

freakynipples69

iTrader: (3)

can anyone else back this up? I've heard people using the patriot performance dual springs on this cam before.

Ryan02SS

iTrader: (3)

The Thunder Pushrods are actually 7.415" long so they counteract the .0015" smaller base circle on the TR224. Using a 7.435 PR is wrong unless your heads have been milled. I used to run, TR224 C918s TR PRs @ titanium retainers. Weight is the enemy of any valvetrain and you'll be doing yourself a favor coughing up the $90 for titanium retainers. After finding the spring pressure was low on the 918s after 4800miles I pulled them when I installed my Patriot heads w their .650 lift Gold springs. I think the 918s are great designed springs when you read up on the harmonics of a beehive design spring compared to duals. I am pretty sure mine lost pressure due to the added weight on the valve caused by my Yella Terra 1.7 roller rockers. If I was running the stock rockers I would have no reservations about running the 918s again. HTH

Droptopws6

iTrader: (13)

Listen, just use 918's , ti retainers and 7.4" TR pushrods. You dont need the dual valve springs,overkill.

freakynipples69

iTrader: (3)

Well i already bought them so might as well use them.

TheBowtieboy

iTrader: (6)

While I agree that the 918's are fine for this cam and that a spring rated at 625 + would be counteractive, I would NOT say that a dual spring is overkill.....wait until you break a single spring and see the potential damage it can cause.

YO-EL

iTrader: (6)

I'm kinda new here, but where are you guys getting all this BS about push rod length..

TR , Comp, Crane, stock LS-1 rods are all 7.40"

Cal

iTrader: (1)

Ryan02SS

iTrader: (3)

Then I guess the guys at Thunder lied to me and my dial calipers don;t measure correctly.

freakynipples69

iTrader: (3)

When I ordered stock lengthed pushrods from thunder racing, they cam in a box that is clearly labeled 7.400 and it says the same on their website so

KCFormula

iTrader: (4)

That is what I have always been told.