First Fire
Thread Starter
Safety Car
Joined: Aug 2011
Posts: 4,442
Likes: 407
From: Portland OR
First Fire
So after 8 months of work, I finally fired the car yesterday.
It won't idle and I'm wondering if having the PCV just capped at the manifold (catch can setup will arrive this week) is messing up the expected airflow at idle? It is essentially a calibrated "leak" that I have eliminated.
I'll hook it up this evening, but just wanted to see if my thinking is correct.
Ron
It won't idle and I'm wondering if having the PCV just capped at the manifold (catch can setup will arrive this week) is messing up the expected airflow at idle? It is essentially a calibrated "leak" that I have eliminated.
I'll hook it up this evening, but just wanted to see if my thinking is correct.
Ron
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Capped or uncapped all that air is "metered" by the MAF and should learn out with 50 miles of normal driving--It is a small amount of air you're adding by capping the port--
This is assuming your still usng the STOCK MAF closed loop tune--
This is assuming your still usng the STOCK MAF closed loop tune--
Thread Starter
Safety Car
Joined: Aug 2011
Posts: 4,442
Likes: 407
From: Portland OR
I have just left it all capped off for the time being.
I studied the diagrams and I now understand that all of the air is metered through the MAF. If connected like stock that is.
I have a catch can to add in when I'm done tuning. A process I am learning with the help of a mentor.
It is quite fascinating, to say the least.
We now have it starting and idling both cold and hot. Sounds real good.
The MAF, TB, Intake, Heads and exh are all new to this car. So starting from scratch.
Back to the PCV stuff. I see setups that use a filtered oil filler cap. This must upset the idle airflow a bit.
Thanks for chiming in.
Ron
I studied the diagrams and I now understand that all of the air is metered through the MAF. If connected like stock that is.
I have a catch can to add in when I'm done tuning. A process I am learning with the help of a mentor.
It is quite fascinating, to say the least.
We now have it starting and idling both cold and hot. Sounds real good.
The MAF, TB, Intake, Heads and exh are all new to this car. So starting from scratch.
Back to the PCV stuff. I see setups that use a filtered oil filler cap. This must upset the idle airflow a bit.
Thanks for chiming in.
Ron
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
I use an aftermarker cap that allows fresh air to be drawn in for the PCV system but won't let air release--Aids with any catch can set up to let the PCV breath better--You really only want a one way cap or when the engine is turned off you'll get oil vapors realesed under the hood and an oily smell---
Former Vendor
Joined: Jul 2010
Posts: 4,504
Likes: 4
From: Waterloo Ontario
Thread Starter
Safety Car
Joined: Aug 2011
Posts: 4,442
Likes: 407
From: Portland OR
Oh, that. Doh. I don't have a vid camera or a cell phone. I'm 20th century.
It has a nice crackle to it. No lope! And it's doing fine in and out of gear now.
I have a tuner friend, a Canadian in fact! (Insert Canada national anthem)
Going through the cold start routine just takes days I'm afraid. Soon I'll have to drive it and do the MAF curve. Haven't driven it in 8 months! First stop will be an alignment.
Ron
It has a nice crackle to it. No lope! And it's doing fine in and out of gear now.
I have a tuner friend, a Canadian in fact! (Insert Canada national anthem)
Going through the cold start routine just takes days I'm afraid. Soon I'll have to drive it and do the MAF curve. Haven't driven it in 8 months! First stop will be an alignment.
Ron
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer