effect of mods?
Pro
Joined: Jul 2002
Posts: 703
Likes: 0
From: Milwaukee Wi
Drifting
Joined: May 2013
Posts: 1,736
Likes: 31
From: Reno Nevada
Honestly guys, turn off the egr, and air and it should be good. If the VE tables are worked smooth there should be no hard start. Open loop tables work off closed loop learned function which should smooth out. Yes, it does default to an open loop map above 91.9 KPA or WOT, but otherwise it's closed loop operation. Starting should be based of last shutdown plus added start parameters. Sounds like $700 bought inexperience that may know OBD2, but is lost in old speed density.
Playsdixie, you can do this yourself really. See here:
Www.scotthansen.net/data.html
There's some software cost outlays, or if you datalog I'll help you.
Playsdixie, you can do this yourself really. See here:
Www.scotthansen.net/data.html
There's some software cost outlays, or if you datalog I'll help you.
Thread Starter
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
Honestly guys, turn off the egr, and air and it should be good. If the VE tables are worked smooth there should be no hard start. Open loop tables work off closed loop learned function which should smooth out. Yes, it does default to an open loop map above 91.9 KPA or WOT, but otherwise it's closed loop operation. Starting should be based of last shutdown plus added start parameters. Sounds like $700 bought inexperience that may know OBD2, but is lost in old speed density.
Playsdixie, you can do this yourself really. See here:
Www.scotthansen.net/data.html
There's some software cost outlays, or if you datalog I'll help you.
Playsdixie, you can do this yourself really. See here:
Www.scotthansen.net/data.html
There's some software cost outlays, or if you datalog I'll help you.
Drifting
Joined: May 2013
Posts: 1,736
Likes: 31
From: Reno Nevada
thanks so much for the info...but bear with me a little...although I install automated wiress control systems for pool equipment, i'm not that computer friendly...you are saying I can hook a laptop up to my car..and read what the tuners see?....aside from a laptop, what is the relative cost of the software?....and any other equipment.....is it user friendly?.....and of course..."datalog"????j....thanks...Paul ...
Thread Starter
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
The Moates cable is $80, and the software is free for the first 20 datalogs, and $90 if you want to buy it. I like modifying my bins using Tunercat which I believe is about $100, and the Moates burn2 for burning you're own chips is another $80. So, for $260 you can do it yourself. More importantly, is for what you paid it should be perfect. Cold starts should be perfect after smoothing the fuel maps. All of this is shown on my links page. Myself, and many here can always help too. If you read the page I created it takes you step by step on how to tune speed density. It doesn't include custom spark tables based on different cam profiles, but yours should operate well on a stock one.
Racer
Joined: Oct 2012
Posts: 298
Likes: 0
removed the smog, egr crap , installed headers/ roller rockers..had it dyno'd....
engine runs great with one exception....on initial start it takes a minute or two to run smooth...purrs like a kitten when warm....since I live in s fl...it's not a big problem...any thoughts on what it could be? new everything above the block....idle wavers....just a couple of minutes....then steady at
650 ,,,,any thoughts would be appreciated....Iac valve is new...Paul
engine runs great with one exception....on initial start it takes a minute or two to run smooth...purrs like a kitten when warm....since I live in s fl...it's not a big problem...any thoughts on what it could be? new everything above the block....idle wavers....just a couple of minutes....then steady at
650 ,,,,any thoughts would be appreciated....Iac valve is new...Paul
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
What is the TPS value at normal (600rpm) idle?
What is base timing set at?
Did you add an AFPR to bump fuel pressure or do all the bumps in chip?
From the dyno tune plot what is the A/F ratio?
What year Vette?
What is base timing set at?
Did you add an AFPR to bump fuel pressure or do all the bumps in chip?
From the dyno tune plot what is the A/F ratio?
What year Vette?
Thread Starter
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
sometimes best to do it yourself.......estimated 50 hp increase with the work....
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Thread Starter
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
...These guys on here are great at helping figure out problems..They're very tenacious...
......WW
Racer
Joined: Jul 2013
Posts: 275
Likes: 1
From: Colorado Springs
Thread Starter
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
without the forum, that old wreck I bought last year wouldn't be the tire smoker it is now....with a fsm and these guys, i'll always be able to do all my own work...and keep it running sweet as suger...hopefully some day i'll be able to contribute with the information these guys have....they are the best paul 
