Upgraded springs absolutely necessary for Isky 270 cam?

Gregmatic

Senior Member

Posts: 2193
#1

Upgraded springs absolutely necessary for Isky 270 cam?

01-16-2016, 08:53 PM

I know I should upgrade to the 110 lb Schneider springs but just wondering if that is absolutely necessary on a motor that will likely never see north of 5500 rpm. Am I correct in presuming that there will no be no issues at idle or mid-range rpm?
amreboot

Banned

Posts: 9875
#2

01-16-2016, 09:13 PM

I ran the Schneider 270 cams with VG33 outers and VG30 inners. About a 15% increase in spring strength.
I had no problem taking it up to 6700-7000 rpm.

So, you will be fine. But to argue, its only $100 to upgrade.
One of those "might as well". Ya know?
Gregmatic

Senior Member

Posts: 2193
#3

01-16-2016, 10:38 PM

Thanks.....Yeah, I know.......just feeling pretty unmotivated these days to do any work at all, especially when it isn't absolutely necessary
Crazy

Senior Member

Posts: 619
#4

01-17-2016, 10:07 PM

I have ben running stock valve springs with Schneider regrinds for years.

Black 1986 300zx Turbo coupe (Chuki)
http://z31performance.com/showthread…86-Turbo-Coupe
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Pewter 1986 300zx N/A 2 Turbo 2+2 (Chuki)
http://z31performance.com/showthread…9;s-1986-300zx
Axel kain

Moderator

Posts: 1221
#5

01-18-2016, 12:22 PM

yeah, Im on stock springs with Isky ~270's

Damn dirty angels....these cars!

Current Daily Driver - 86 Turbo.
Under the cover - THE BANANA… that needs to be re-energized.
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Gregmatic

Senior Member

Posts: 2193
#6

01-19-2016, 09:13 PM

Thanks for the feedback…in they go!