Anyone recommend ZZP 1.9 modded rocker arms?

**97AutoXVette** · 05-04-2014

Wondering if this is a good mod to consider next (while I work on eliminating knock). I am guessing you'd recommend changing the springs as well if I go forward with it?

If you have done this mod, how well did the car respond with it?

Thanks in advance

**dsmuts** · 05-04-2014

Mine got rid of 8° of kr I was getting and I ran mine on stock springs

**REDCRAPGP** · 05-04-2014

Had them got rid of like 4-5* of the knock I had at one poinr

**l67ss** · 05-05-2014

Planning on getting a set myself

**Explicit_Spade** · 05-05-2014

I'd reccomend a cam over rockers any day.

**Slick2500** · 05-05-2014

Yeah for the cost a cam is much better, only thing rockers have over a cam is easier install.

**l67ss** · 05-05-2014

^this and idle characteristics

**Explicit_Spade** · 05-05-2014

Cam install isn't too bad once you figure out how to get the harmonic balancer off. That's my least favorite part of anything I've ever done on a GP.

**Slick2500** · 05-05-2014

Oh yeah I've got that **** down to a science can have it off there in no time at all.

**dsmuts** · 05-05-2014

Originally Posted by 97AutoXVette

Wondering if this is a good mod to consider next (while I work on eliminating knock). I am guessing you'd recommend changing the springs as well if I go forward with it?

If you have done this mod, how well did the car respond with it?

Thanks in advance

also If you need help swapping springs I have the tools to do it

**BillBoost37** · 05-05-2014

Originally Posted by Explicit_Spade

Cam install isn't too bad once you figure out how to get the harmonic balancer off. That's my least favorite part of anything I've ever done on a GP.

That's hilarious.. it's a 15min thing to swap a crank sensor.

**97AutoXVette** · 05-05-2014

Originally Posted by dsmuts

also If you need help swapping springs I have the tools to do it

Nice! When I pick up a pair, I may contact you about that. What RPM did you set your shifts at with rockers and the stock springs by chance?

Thanks for all of the responses. I am not planning on tearing into the block for a cam swap anytime soon, so will likely go the rockers route for now.

Any recommendations on what I may need to change in the tune when I put these in? Recommended safe shift RPM?

**dsmuts** · 05-05-2014

6k rpm

**97AutoXVette** · 05-05-2014

Originally Posted by dsmuts

6k rpm

I've seen the magic number 6 before. Stock is set right at 5,350 at least in my 1999 GTP. Have you guys seen some good/safe gains by bumping the shift points up by that much? by gains, I mostly mean acceleration/track times by being WOT in more "area under the curve" locations in the power band.

**dsmuts** · 05-05-2014

It seemed a lot faster on the butt dyno

**97AutoXVette** · 05-05-2014

Perfect!

**ADrugDealer** · 05-05-2014

Go cam! Best thing I ever did!

**97AutoXVette** · 05-05-2014

Originally Posted by Adecker

Go cam! Best thing I ever did!

What cam would you recommend given my list of mods???

If I do cam, I am going to do springs, pushrods, timing chain, the whole 9 yards probably just to be safe...

**wa04compg** · 05-05-2014

I ran zzp 1.9 rockers with stock springs shifting at 6k no issues easy to install helped with a few degrees of kr and seemed to have better power up top...currently in the middle of a xp can install...rockers deff easy install for a beginner

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**97AutoXVette** · 05-05-2014

Originally Posted by wa04compg

I ran zzp 1.9 rockers with stock springs shifting at 6k no issues easy to install helped with a few degrees of kr and seemed to have better power up top...currently in the middle of a xp can install...rockers deff easy install for a beginner

Sent from my iPhone using Tapatalk

Good to hear.. want to sell those ZZP rockers to me by chance?!?!