New Caprice - Discussion forums

The worldwide owner-to-owner online support system for the Chevrolet Caprice PPV
It is currently Wed Jun 20, 2018 2:38 am

All times are UTC [ DST ]




Post new topic Reply to topic  [ 63 posts ]  Go to page Previous  1 ... 3, 4, 5, 6, 7
Author Message
PostPosted: Thu Nov 30, 2017 5:33 pm 
Offline

Joined: Sat Feb 14, 2015 2:12 am
Posts: 641
Location: SE PA
What is the max boost PSI you are getting with the stock pulleys? I would think the exhaust mods alone would drop it from what a stock LSA is? curious if you are going to swap them out seeing as how you seem to have the supporting mods like cam etc to do so?


Top
 Profile  
 
PostPosted: Tue Dec 05, 2017 5:30 am 
Offline

Joined: Tue Jul 04, 2017 5:46 pm
Posts: 36
It made about 7 pounds at 5400ish rpm on the stock ZL1 manifolds and cats. I'm sure it's lower with the new exhaust setup. It also seems to run a bit cooler. Being that it runs about 10 to 1 air/fuel ratio at wide open throttle, I'm sure that I could change the pulleys and add another 100ish horsepower on the same injectors. I have a buddy that will donate a water-methanol injection kit to the project if I want to install it. I think that I'll take it to the next level next summer.

In the meantime, I have been daily-driving the car with no issues. Transmission is holding up just fine. The tuners acted like 515 hp was no big deal and when I asked them about installing the methanol injection system, they said I wouldn't need it at those hp levels.


Top
 Profile  
 
PostPosted: Tue Dec 05, 2017 2:45 pm 
Offline

Joined: Sat Feb 14, 2015 2:12 am
Posts: 641
Location: SE PA
I'm sure they could tune it just fine if you used a pulley that put you in the area under 10psi still but I'm sure the car will run even better with the water injection and if you are getting if free and have to do the retune anyway it would seem crazy not to do it. Maybe they can give you a tune for both? Not sure if you have a plug in device to switch tunes out or just using 1 only.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 63 posts ]  Go to page Previous  1 ... 3, 4, 5, 6, 7

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group