Thread: modded 1.9's and 90lbs springs

Oh gotcha... well ive used the claw spring compressor and the push down kind.. the claw one was easier, but i have heard good things(even before this thread) about the lever kind they are talking about... the next time i change my springs i will be trying that one out

I was under the impression that everyone went with 105lb springs because the beehive design actually was easier on the valvetrain?

^Same here, many sources say the aggressive ramp rate of the 90's are harder on a stock valvetrain.

I mean ive been running 90's for about 4-5 years now lol thats about 40-50k on them

Yup and plenty guys have run 90s.... That tells you something

or just run L76 (G8 GT) springs they are 90# but have similar ramp rate to the 105 and our stock springs.

Yea you do possibly. Keeping old used valve springs isn't exactly going to help. Seriously don't do rockers if you aren't prepared to change the springs .

think of it this way... with mod'd rockers the valves are traveling up and down further. this extra movement will increase the chance/ onset of valve float. as valve float is when the spring can not close the valve fast enough...

like said if upgrading valves or cam, springs should be upgraded also.

If you keep your shift points stock...sure you could probably get away with it. With any added lift with either cam or rockers these motors (stock springs) seem to float pretty easily. It's added insurance and in mean putting a better quality spring. Especially if you have a higher mileage motor the springs are probably nice and tired. Refreshing with a better spring is always a good suggestion.