YT 1.8 roller rockers on stock springs?

**Schwuppes** · 06-03-2013

engine has 110.000 miles (~170.000km) on it

yay or nay?

**Explicit_Spade** · 06-03-2013

Yay mate.

ZZP's site even says their 1.9s "work with all stock or aftermarket pushrods, lifters, springs, retainers".
ZZPerformance - 1.9 Ratio Modified Rockers #ZZ-19MR

**AjL227** · 06-03-2013

I mean...I would get 90# or higher but that is just me.
Cost of springs < cost of engine

**Schwuppes** · 06-03-2013

cheers cobber

to be honest ive never understood the whole "1.9 modded rockers are ok on stock springs, but YT rollers aren't" thing...
The YT aluminium rockers are much lighter than the steel modded ones... so the spring has less resistance/inertia to work against, which would mean less chance of valve float with YT roller rockers, right?

**Explicit_Spade** · 06-03-2013

Originally Posted by Bio248

roller rockers arent worth the gain.

i ran modded 1.9s on stock springs forever and would recommend that if youre going the rocker route.

Many have done 1.8s and 1.9s on stock springs without ever having issues.

**addzradd** · 06-03-2013

You could, But I don't know why you would for the price you might as well while you are in there and have it all apart it's only another 15 minutes or so on the project.

**darkhorizon** · 06-03-2013

1.8 rockers are no better than stock.. I ran them for years on a 18psi turbo setup without floating.

**Sudden** · 06-04-2013

I wouldn't recommend something because some have done it "without ever having issues."

**Explicit_Spade** · 06-04-2013

Originally Posted by Sudden

I wouldn't recommend something because some have done it "without ever having issues."

First off, don't half ass quote me, I said many. You don't realize that rockers aren't a big deal. Without a cam in addition to rockers lift isn't changing much at all.

**Sudden** · 06-05-2013

ooh!, touchy. And I consider .080 a substantial increase in lift on a stock spring that already has many miles on it. It's not a cam but it can get you 20 HP. If you've ever broken a spring you can see the value of replacing them, plus the value of just having springs that do the job right.

Originally Posted by Explicit_Spade

First off, don't half ass quote me, I said many. You don't realize that rockers aren't a big deal. Without a cam in addition to rockers lift isn't changing much at all.

**GTPpower** · 06-05-2013

You aren't getting .080" extra lift by switching to 1.8 RR's.

**Sudden** · 06-05-2013

No, that would probably take 1.9s. But you are still pushing possibly fatigued springs faster and farther than they are used to.

Originally Posted by GTPpower

You aren't getting .080" extra lift by switching to 1.8 RR's.

Thread: YT 1.8 roller rockers on stock springs?

Thread Tools

Display

Bookmarks