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ti valves and springs

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Lem Evans
Frank Merkl
ironbark
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Post  ironbark December 3rd 2013, 8:34 pm

what I have is 604 at 18 to compression on metho.
profiler heads the 205 series with TI valves, roller cam with around 800 lift 280 290 duration, now the springs are about 30 thou off from coil bind.
how long will the nextek triple springs last at a guess, and what issues am I looking for.

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Post  Frank Merkl December 3rd 2013, 8:55 pm

needs to be at .060" , .030" to tight and you'll end up breaking valve train and springs
Frank
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Post  Lem Evans December 3rd 2013, 9:01 pm

Like frank said........060" above c.b. would be better.

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Post  ironbark December 3rd 2013, 9:08 pm

thanks men, just seems to be no end to fixing what dynoflo have done.

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Post  cool40 December 3rd 2013, 9:21 pm

Check your installed height and psi.you may go with a +.050 retainer to get where you need to be.
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Post  c.evans December 3rd 2013, 9:54 pm

Sounds like somebody didn't order long enough valves, especially with just an .800" lift cam. Like the others have said, you need to be .060" away from coil bind. Your Manley NexTek triples have a top and a bottom. The chamfered edge is the top, and make sure they are installed that way. How's your rocker arm geometry looking?

Charlie

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Post  Bret Powell December 6th 2013, 12:38 pm

Is it really .030 from coil bind or .030 from what the spring is rated from coil bind? Have they been checked? What the spring calls out as coil bind and what they actually are is often not the same.

Bret

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Post  ironbark December 6th 2013, 4:21 pm

I do have 60 thou, but Charlie is smack about the valves not having enough stem.
this is the same engine that landed here from the USA with the smashed lifters still floating around the sump, when it was first run it had a bigger cam around 900 lift and it smashed the lifters and they put in the current cam and sent it to me.
hoping to get the next season out of it and then rebuild the heads, just can not afford any more at the moment as I have spent another 20 thousand since it got here trying to fix what they have farked up. so far this engine has taken 18months and is has cost me $48 000. original quote 23 000.

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Post  ironbark December 6th 2013, 5:03 pm

anyhow this is a look at what it is now, ready to go.
ti valves and springs DSCN0495
ti valves and springs DSCN0494
ti valves and springs DSCN0493
ti valves and springs DSCN0492

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Post  Dave De December 7th 2013, 11:08 am

ironbark wrote:thanks men, just seems to be no end to fixing what dynoflo have done.
Is that Dynoflo out of Reno Nevada? I had a bad experience with them as well.
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Post  ironbark December 7th 2013, 5:27 pm

yeah they were from Nevada, personally I think they should donate their tools to a college and forget about cars.

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Post  Dave De December 7th 2013, 5:57 pm

ironbark wrote:yeah they were from Nevada, personally I think they should donate their tools to a college and forget about cars.
You are being kind. I am too embarrassed to tell you what they did to me. My problems with them were years ago, I see there hasn't been an improvement. We rolled the dice and lost.
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