ZZP ER rockers
Joined: Apr 2010
Posts: 12,606
From: Mentor, Ohio
I can attest to similar results as Chibi.
I had a ZZP 2.5" DP and high flow cat as well as L67 coils before I did my ER Rockers.
When I did my ER Rockers, they were done at the same time as:
- HV3
- PLOG
- Port Matched LIM
- Ported L67 Throttle Body
- PCMforLess.com tune
And for looks, F-body 3800 aluminum valve covers.
It made a difference! It did not make a "beast", but it improved the 3800 potential a lot. I hope to re-tune the car this summer, as that will make a bigger impact.
I had a ZZP 2.5" DP and high flow cat as well as L67 coils before I did my ER Rockers.
When I did my ER Rockers, they were done at the same time as:
- HV3
- PLOG
- Port Matched LIM
- Ported L67 Throttle Body
- PCMforLess.com tune
And for looks, F-body 3800 aluminum valve covers.
It made a difference! It did not make a "beast", but it improved the 3800 potential a lot. I hope to re-tune the car this summer, as that will make a bigger impact.
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Monte Of The Month -- February 2014
Joined: Oct 2010
Posts: 1,715
From: British Columbia, Canada
Thanks for the input Jason & Mike. I am looking forward to the gains, lord knows we need every hp available to wake these power plants up. You both mentioned a tune, from what I have read, they did not mention having to retune the PCM. I already have in car tune from Will. Do I need to tweek that tune? I will eventually also be installing an HV3. Thanks for your help, it is always appreciated.
Joined: Apr 2010
Posts: 12,606
From: Mentor, Ohio
The primary reason I got a tune was all my reading said the port matched L67 tb needed different MAF tables put in.
Otherwise, you could run your current tune, but for obvious reasons, re-tuning to match all your mods gives you the best gains. I hope to re-tune my Monte this year myself (instead of a mail order tune).
Otherwise, you could run your current tune, but for obvious reasons, re-tuning to match all your mods gives you the best gains. I hope to re-tune my Monte this year myself (instead of a mail order tune).
Monte Of The Month -- August 2014
Joined: Sep 2008
Posts: 25,145
From: Southeast PA
No need to retune unless you swap the springs and can rev past 5900.
Shoot Will an email, but you'll probably be fine. He might be able to add a degree of timing, but he might say it's not worth it.
Shoot Will an email, but you'll probably be fine. He might be able to add a degree of timing, but he might say it's not worth it.
Thread Starter
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Monte Of The Month -- February 2014
Joined: Oct 2010
Posts: 1,715
From: British Columbia, Canada
Thread Starter
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Monte Of The Month -- February 2014
Joined: Oct 2010
Posts: 1,715
From: British Columbia, Canada
Well, finally got them on today...... Definately a butt dyno increase in HP above 3000rpm...... Very rainy here today so the testing was quite limited... I also had my L67 coils installed at the same time... Loving the results...... Only issue is that it feels like I am getting an intermitant miss, worse when installed and less the longer I drive... Question, is it possible the PCM needs time to relearn new set-up? If not, I will start looking for a faulty coil... Any help would be appreciated...
... Definately a butt dyno increase in HP above 3000rpm...... Very rainy here today so the testing was quite limited... I also had my L67 coils installed at the same time... Loving the results...... Only issue is that it feels like I am getting an intermitant miss, worse when installed and less the longer I drive... Question, is it possible the PCM needs time to relearn new set-up? If not, I will start looking for a faulty coil... Any help would be appreciated...
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