C6 Forced Induction/Nitrous C6 Corvette Turbochargers, Superchargers, Pulley Upgrades, Intercoolers, Wet and Dry Nitrous Injection, Meth
Sponsored by:
Sponsored by:

Hard Starting

Thread Tools
 
Search this Thread
 
Old 07-29-2016, 07:32 PM
  #21  
schpenxel
Race Director
 
schpenxel's Avatar
 
Member Since: May 2004
Location: Raleigh, NC
Posts: 16,664
Received 1,193 Likes on 1,052 Posts
St. Jude Donor '15

Default

Bling bling
Old 07-29-2016, 08:24 PM
  #22  
JetstreamGS
Drifting
 
JetstreamGS's Avatar
 
Member Since: Jul 2014
Posts: 1,946
Received 173 Likes on 147 Posts
Default

I had this exact issue last season. Spoke to tuner and he said crank air/fuel needs adjustment. Never took it back and oddly enough it hasn't done it at all this season and temps have been hotter. I'm not complaining.
Old 08-15-2016, 08:22 AM
  #23  
genolan
Racer
Thread Starter
 
genolan's Avatar
 
Member Since: Dec 2011
Posts: 315
Received 14 Likes on 8 Posts
Default

Originally Posted by JetstreamGS
I had this exact issue last season. Spoke to tuner and he said crank air/fuel needs adjustment. Never took it back and oddly enough it hasn't done it at all this season and temps have been hotter. I'm not complaining.
Mine did it again on Saturday, It cranked for about 20 seconds then started, The only thing that makes sense is Meth in the intake tube. If this is the case would it require a new Meth Pump?
Old 08-15-2016, 09:14 AM
  #24  
JetstreamGS
Drifting
 
JetstreamGS's Avatar
 
Member Since: Jul 2014
Posts: 1,946
Received 173 Likes on 147 Posts
Default

Originally Posted by genolan
Mine did it again on Saturday, It cranked for about 20 seconds then started, The only thing that makes sense is Meth in the intake tube. If this is the case would it require a new Meth Pump?
Mine actually did it yesterday for the first time this season. I don't think it's meth related, at least not in my case since I don't have it. It's in the tune.
Old 08-18-2016, 07:48 AM
  #25  
genolan
Racer
Thread Starter
 
genolan's Avatar
 
Member Since: Dec 2011
Posts: 315
Received 14 Likes on 8 Posts
Default

It did it again last night after driving 15 min and parking for 45 min. This is getting frustrating!!
Old 08-18-2016, 09:59 AM
  #26  
JetstreamGS
Drifting
 
JetstreamGS's Avatar
 
Member Since: Jul 2014
Posts: 1,946
Received 173 Likes on 147 Posts
Default

Originally Posted by genolan
It did it again last night after driving 15 min and parking for 45 min. This is getting frustrating!!
It is frustrating indeed! No need to crank it for 20 seconds. When it does it, just blip the throttle a bit and she'll fire right up.
Old 08-18-2016, 10:35 AM
  #27  
genolan
Racer
Thread Starter
 
genolan's Avatar
 
Member Since: Dec 2011
Posts: 315
Received 14 Likes on 8 Posts
Default

Originally Posted by JetstreamGS
It is frustrating indeed! No need to crank it for 20 seconds. When it does it, just blip the throttle a bit and she'll fire right up.
Thanks, Do you think it's a rich or lean condition
Old 08-18-2016, 10:42 AM
  #28  
JetstreamGS
Drifting
 
JetstreamGS's Avatar
 
Member Since: Jul 2014
Posts: 1,946
Received 173 Likes on 147 Posts
Default

Originally Posted by genolan
Thanks, Do you think it's a rich or lean condition
Yes cranking air/fuel needs adjustment.
Old 08-18-2016, 10:51 AM
  #29  
Dude_man
Drifting
 
Dude_man's Avatar
 
Member Since: Jun 2009
Location: St. Petersburg Florida
Posts: 1,730
Received 93 Likes on 75 Posts

Default

Originally Posted by JetstreamGS
Yes cranking air/fuel needs adjustment.
Blasphemy! It cant be what he was told multiple times by different people, that's just ludicrous!!!!


Old 08-18-2016, 11:00 AM
  #30  
schpenxel
Race Director
 
schpenxel's Avatar
 
Member Since: May 2004
Location: Raleigh, NC
Posts: 16,664
Received 1,193 Likes on 1,052 Posts
St. Jude Donor '15

Default

Haha
Old 08-18-2016, 12:21 PM
  #31  
Unreal
Team Owner
 
Unreal's Avatar
 
Member Since: Nov 2007
Location: Gilbert AZ
Posts: 24,035
Received 2,313 Likes on 1,793 Posts

Default

Frustrating? If only there was an easy solution posted 20 times.
Old 08-18-2016, 01:09 PM
  #32  
genolan
Racer
Thread Starter
 
genolan's Avatar
 
Member Since: Dec 2011
Posts: 315
Received 14 Likes on 8 Posts
Default

Having Fun boys
Old 08-18-2016, 01:11 PM
  #33  
Dude_man
Drifting
 
Dude_man's Avatar
 
Member Since: Jun 2009
Location: St. Petersburg Florida
Posts: 1,730
Received 93 Likes on 75 Posts

Default

Originally Posted by genolan
Having Fun boys
Did you try the idle mixture screw on the carb?
The following 2 users liked this post by Dude_man:
MBB (08-18-2016), schpenxel (08-18-2016)
Old 08-18-2016, 01:12 PM
  #34  
schpenxel
Race Director
 
schpenxel's Avatar
 
Member Since: May 2004
Location: Raleigh, NC
Posts: 16,664
Received 1,193 Likes on 1,052 Posts
St. Jude Donor '15

Default

Dat double pumper
Old 08-18-2016, 01:16 PM
  #35  
genolan
Racer
Thread Starter
 
genolan's Avatar
 
Member Since: Dec 2011
Posts: 315
Received 14 Likes on 8 Posts
Default

Originally Posted by Dude_man
Did you try the idle mixture screw on the carb?
I spent two hours looking for the Carb and have yet to find it. Oh well I do appreciate the help when you aren't bashing us less knowledgeable guys.
Old 08-18-2016, 02:28 PM
  #36  
MBB
Melting Slicks
 
MBB's Avatar
 
Member Since: Jan 2013
Location: Dallas Tejas
Posts: 2,837
Received 41 Likes on 33 Posts

Default

Originally Posted by genolan
I spent two hours looking for the Carb and have yet to find it. Oh well I do appreciate the help when you aren't bashing us less knowledgeable guys.
You aren't being bashed because of your lack of knowledge, you aren't actually being bashed at all.

You're being made fun of because your question has been answered several times but you're still asking waiting to get an answer that you want.

You're being what they call an ASKhole. You ask questions then argue with the folks giving the advice or ignore the advice given.

p.s. You don't have a carb genius...it's an EFI car.

Last edited by MBB; 08-18-2016 at 02:29 PM.
Old 08-18-2016, 03:00 PM
  #37  
neverstop
Melting Slicks
 
neverstop's Avatar
 
Member Since: Feb 2013
Posts: 2,034
Received 108 Likes on 102 Posts
Default

Originally Posted by Unreal
Frustrating? If only there was an easy solution posted 20 times.
hahaha....

Get notified of new replies

To Hard Starting

Old 08-18-2016, 03:53 PM
  #38  
chpmnsws6
Drifting
 
chpmnsws6's Avatar
 
Member Since: Jul 2006
Location: Springfield IL
Posts: 1,700
Received 60 Likes on 56 Posts

Default

Okay, assume the cranking airflow has been adjusted all over the board and still can't get it to hot start, what do you do then? It's getting spark and fuel, fuel pressure is good, injectors aren't bleeding off, and it has roughly 11 degrees of timing during startup. I've had this issue since it came from a reputable shop who tuned it.

Once running, the car runs great.

Last edited by chpmnsws6; 08-18-2016 at 04:01 PM.
Old 08-18-2016, 04:10 PM
  #39  
schpenxel
Race Director
 
schpenxel's Avatar
 
Member Since: May 2004
Location: Raleigh, NC
Posts: 16,664
Received 1,193 Likes on 1,052 Posts
St. Jude Donor '15

Default

There's a cranking VE table and a cranking fuel table that I'd play with next. I've never really messed with them very much, but that'd be my best guess.

I'd just try a fairly large change both ways, say 25%, and see if it changes anything

If you have a wideband in the car I'd try to get it warmed up/working prior to starting the car and try to see if it's lean or rich right after startup. Not sure how accurate the sensor will be at that point but it's worth a shot.

Last edited by schpenxel; 08-18-2016 at 04:11 PM.
Old 08-18-2016, 09:06 PM
  #40  
chpmnsws6
Drifting
 
chpmnsws6's Avatar
 
Member Since: Jul 2006
Location: Springfield IL
Posts: 1,700
Received 60 Likes on 56 Posts

Default

The timing in the hotter tables goes from 7 degrees all the way to -10. The 200 degree area where this does it is where I'm having troubles. I bumped it a few degrees and added a little more airflow to it. It seemed to help but being so random it's hard to say and we've played this "great, it starts and it's fixed" game before only to have the better half asking if we need to trade it in on a C7. The laptop might just need to live in the car for awhile. These issues were why I was asking to see your tune.

Last edited by chpmnsws6; 08-18-2016 at 09:08 PM.


Quick Reply: Hard Starting



All times are GMT -4. The time now is 10:18 AM.