Lt1 camshaft stuff

[ib4200]

max lift you can do with a stock motor before you run into coil bind problems is in the .500-.510 range right?

[LTb1ow]

Um, on what springs?

Or do you just mean un modified heads with stockish valve setup?

And or, I believe stock spider for lifters may run into trouble if you run a radical cam with keeping lifters in check...

[ib4200]

stock as in take the timing gear out, r&r the cam and re install timing gears and opti and whatnot

[LTb1ow]

Oh, good luck...

I would remove stock cam, and then stick it back in.

[ib4200]

what would be the max lift by just throwing a cam in?

[LTb1ow]

Originally Posted by ib4200

what would be the max lift by just throwing a cam in?

On stock springs?

The stock cam.

[ib4200]

so then why can you do 1.6 rockers on a stock engine with stock springs if it can handle zero additional lift?

[LTb1ow]

Originally Posted by ib4200

so then why can you do 1.6 rockers on a stock engine with stock springs if it can handle zero additional lift?

Its not advised. And if you have any substantial amount of miles on your springs, you are playing with fire.

[ib4200]

eh. i'll just wait till tomorrow for the answer i want lol

[LTb1ow]

Originally Posted by ib4200

eh. i'll just wait till tomorrow for the answer i want lol

Have fun blowing it up.

[RamAir95TA]

Running 1.6s on the stock springs is NOT worth the risk. Are you familiar with the term "coil bind?"

[sweetbmxrider]

springs are cheap enough, might as well do it right then do it half assed and end up broken.

[WildBillyT]

Originally Posted by RamAir95TA

Running 1.6s on the stock springs is NOT worth the risk. Are you familiar with the term "coil bind?"

Yup. Do not half ass your valvetrain.

[LTb1ow]

Originally Posted by WildBillyT

Yup. Do not half ass your valvetrain.

And to be that guy for you Joe(not you ramair) I did run comp magnums on stock springs for a few hundred miles, but my car had less than 75k on it at that point and I rarely if ever hit WOT when the car was stockish.

I still would not advise it. If you want cheap insurance pick up a hot cam kit, comes with cam, rockers, springs, and retainers.

Even then, unless you really want a cheap cam setup I would not advise that. But its your car, do as you will.

[sweetbmxrider]

theres better spring kits for a better price then that

[LTb1ow]

Originally Posted by sweetbmxrider

theres better spring kits for a better price then that

I am just assuming he is a newb and wants the easiest cheapest way to install a cam, which the LT4 hot cam kit provides.

[deadtrend1]

Originally Posted by LTs1ow

I am just assuming he is a newb and wants the easiest cheapest way to install a cam, which the LT4 hot cam kit provides.

and you know why I am putting PAC springs in to replace the crappy LT4 springs that kit somes with

[LTb1ow]

Originally Posted by deadtrend1

and you know why I am putting PAC springs in to replace the crappy LT4 springs that kit somes with

Never said it was "good".... The LT4 springs are marginally better than stockers, and as said before, the whole kit is pretty cheap...

[Pampered-Z]

What everyone is saying ( and not too clearly ) is that the stock springs are only made to handle the lift of a stock cam. The springs are close to coil bind right from the factory and @ .500 lift you can see ciol bind. ( stock cam is 36x lift). adding 1.6 rockers could cause coil bind. Even a baby cam such as the 502 could cause problems.

You are basically forced to change springs with any cam / rocker install.

If your on a tight budget, look at a Hotcam package.

[ib4200]

well i didnt really think this thread was gonna go this far but basically, my engine is pretty much shot (blown headgaskets due to overheating) and im taking it out in the next few weeks. once its out i'll be taking it to the machine shop to start building it.

meanwhile, im getting a good deal on a junkyard motor for cheap with alot less miles and a 6 month unlimited mile warantee. i figured since the motor will be out maybe i should just throw a cam in just to entertain myself and to help prevent rushing the new motor to get done.

doing the cam only swap is really only worth it in my case if the cam is littereally all i had to buy which is why im being so cheap about it. i guess for now i'll just have to deal with the stock motor and just enjoy the fact that it'll be useable again

[WildBillyT]

Originally Posted by ib4200

meanwhile, im getting a good deal on a junkyard motor for cheap with alot less miles and a 6 month unlimited mile warantee. i figured since the motor will be out maybe i should just throw a cam in just to entertain myself and to help prevent rushing the new motor to get done.

Read your warranty. I'll bet that it will be void if you crack it open and change the cam. Then if it breaks (more like when, based on your cam choice and that it's a junkyard motor) you will have two engines that need work.

[Flippindabird]

Originally Posted by ib4200

so then why can you do 1.6 rockers on a stock engine with stock springs if it can handle zero additional lift?

ive always wondered the same thing but im guessing thats with new stock stuff and it really is usually only .030 ish extra lift

[LTb1ow]

Originally Posted by Flippindabird

ive always wondered the same thing

You can run in traffic too, but odds will soon catch up to you...