cam question

[cooguyfish]

I hate to ask this question since I've been asking so many recently... but, I need to know so I can go ahead and order some parts.

I want to rev to 7K RPM. I don't need a perfect idle. I also don't want a tuning nightmare. This car will not be a DD, and I will race it from time to time

is the 1280 cam the one for me?

[blownarrow]

I just ordered an Engle Cam #21652-H Grind# EP-52HYD
Valve lift=.524/.524 Adv Duration=291*/291* cam lift=.349/.349 Dur@0.50=246*/246*
Lobe Center=108*
3000-7000RPM curve
But I'm also running a BIG carb.. I don't think this would be fun to tune in on your ecu...

[SappySE107]

I didn't know engle made roller cams for us.

The 1280 is no longer available, though I have some cam options similar, depending on the springs you want and head work. The higher ramp up rate (xfi) lobes require stiffer springs, which will coil bind on the stock install height. Cutting the spring pocket down will take care of this. There are less aggressive grinds that will work with the 26986 springs, or even yellow LS6 springs but lift is limited again on those. This is why I added the cam selection service on wot-tech, to help determine the best cam for the application.

[blownarrow]

ha ha Roller cams for "us".... you got a mouse in your pocket?

No...

[WrathOfSocrus]

I don't exactly remember what I was searching for at the time but I ran across an old thread with some interesting info regarding the LS6 springs (and the 26915 and 26918 springs as well)

http://60degreev6.com/forum/f96/some...vetrain-t31819

After a quick search on Summit they have a set of 12 for under $40

http://www.summitracing.com/parts/CCA-787-12/

Apparently those retainers raise the install height and give more room for the spring to compress before coil bind. For the small price they could probably open the way to using larger cams with one of those style springs. Also the thread notes an ever so slight amount of reduced weight compared to the stock pieces. Has anyone here used these retainers?

[SappySE107]

The top of the valve stem is already close to the top of the retainer. I don't know if those retainers will work or not, as you may have an interference issue with the rocker vs retainer.

[Superdave]

those retainers don't work, i bought them after seeing the same post, when installed the tip of the valve is down inside the retainer.

http://60degreev6.com/forum/f96/valvetrain-pics-t35680

I'll dig up the pics of them later since i edited them out a couple years ago.