Welcome to the Connecticut Z Car Club Forums




Username:  
Password:  
Log me on automatically each visit
Register 
It is currently Thu Mar 28, 2024 3:42 am
Welcome to the Connecticut Z Car Club Discussion Forums   
If you have trouble logging in or encounter any issues, please send an email to webmaster@ctzcc.com.

All times are UTC - 5 hours





Post new topic Reply to topic  [ 4 posts ] 
  Print view Previous topic | Next topic 
Author Message
PostPosted: Mon May 09, 2016 3:36 pm 
Offline

Joined: Fri Dec 25, 2015 7:39 pm
Posts: 697
Location: Long Island, N.Y.
This is an Update to the original thread about the cold engine stumble that early Z31 (1984-1985) owners sometimes call the "lean surge". After figuring out that everyone was overlooking the EGR circuit as a possible cause, I was able to free up the sluggish solenoid that was allowing exhaust gases into the fuel/air mixture when it should have been completely shut/closed at cold engine startup. The EGR-Valve Solenoid was/is still available from some on-line Nissan dealers so I ordered it and just installed it on Saturday.

Sometimes you do things to the car and it causes other problems or issues to appear. Been there, done that! Sometimes it makes the original problem even worse. :cry: A member on another site I frequent commented that I should "take it the f*** off and through it away because it's not needed." "Or block it off with a beer can." :evil: I just thought it was funny and amusing that someone can get so intense. Anyway, back to the story, after closing it up I got into the car and started it up for a cold engine run down the road. The first thing I noticed was that the fast idle was up 100 rpm to 1,400 rpm. :thumbs_up: When I pulled off the driveway in first gear I immediately notice a faster throttle response and a stronger pull like never before. It chirped into second gear and continued pulling like a freight train. My face was in pain by the time I hit third from the big grin on my face (even my butt felt happy and tingly). This 1985 300ZX GLL only has 32,900 miles on it and is barely broken in. When I bought it a 1 1/2 years ago I thought it ran perfect. I had no idea that some of the ponies were grazing in the meadow waiting to be brought into the corral to join the rest of the stallions.

I really can't explain why the car has a faster throttle response or why my idle (both cold and hot) is up 100 rpm or why there appears to be more horsepower/torque. I just know that changing this solenoid on MY car fixed the "stumble" and then gave me a better running and performing fun machine. Now I'll have to try to control my right foot so I don't upset law enforcement. :twisted: 8) :lol:

"NEVER GIVE UP!" and "NEVER SETTLE!"

_________________
1985 300ZX- GLL Dark Pewter Metallic - Survivor


Top
 Profile  
 
PostPosted: Mon May 09, 2016 5:43 pm 
Offline

Joined: Wed Apr 09, 2008 5:53 pm
Posts: 14778
Location: CT
You must not be surpriZed at the VG 3.0L V6 Nissan engine. You can get 300-400 hp at the wheels just with certain add-on devices. Once you're willing to replace reciprocating mass (pistons) internally, all-out racers have squeeZed 1000hp out of it.

The higher the power the lower the reliability and "streetability", but that power potential is there for the V6 if you want to sink enough money into it.

Frank

_________________
1970 240Z


Top
 Profile  
 
PostPosted: Mon May 09, 2016 6:54 pm 
Offline

Joined: Fri Dec 25, 2015 7:39 pm
Posts: 697
Location: Long Island, N.Y.
This Z will NEVER be modified. This Barnfind will stay 100% ORIGINAL because it can only be Original once and . . So much fun to drive. :shock: 8) :lol: :thumbs_up:

_________________
1985 300ZX- GLL Dark Pewter Metallic - Survivor


Top
 Profile  
 
PostPosted: Mon May 16, 2016 9:29 pm 
Offline

Joined: Sun Apr 01, 2012 4:19 pm
Posts: 1644
the PRW-2 upgrade yields similar results. ;)


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 12 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:  
cron









Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
mile200 v1.0.1 designed by Team -Programming forum- .