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Author Topic: 383 Chevy Stroker  (Read 23240 times)

Offline fxrsrider

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Re: 383 Chevy Stroker
« Reply #15 on: May 23, 2015, 01:20:13 pm »
Quote from: 454 Camper Special on May 23, 2015, 10:18:09 am
No I had it idling...went inside for a minute...came back out and it had stalled... Thought it was out of gas...but wasn't... Put another 10 gallons in for shits n giggles... Whirled her over...nothin... Just wouldn't start back up... I'm guessing the 770 is to much carb...

Definitely not too much.  I just checked....the Performer RPM intake matches carbs rated from 600-800cfm....so even your smaller Edel was okay.

Quote from: 454 Camper Special on May 23, 2015, 10:07:57 am
Right now the ol'girl has a 383 stroker...pulled the 454 to build... The 383 that's in it now turns 5,500-6,000 rpm tops...geared low...TH-400

And the Performer RPM operates between 1500-6000RPM.  So you're good there too.

Did you check to see if you have spark before changing the plugs?  Have you checked the fuel lines and filters for obstructions? Is the fuel pump operating?  Is the throttle opening?  Is the manual choke stuck?  Have you adjusted the idle screw in the Holley?....try opening it.

I'm with Irish on this one....sounds like you're not getting fuel as opposed to having too much carb.  If you have spark, then it's likely a lack of fuel.  If you have spark and fuel, then your problem is compression (and we pray that's not the case).

Quote from: Irish_Alley on May 23, 2015, 11:43:04 am
shhh this guy thinks we're knowledgeable

and gear heads
LMAO  ::)
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Offline Irish_Alley

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Re: 383 Chevy Stroker
« Reply #16 on: May 23, 2015, 02:16:21 pm »
the formula for finding the cfm of a carb is (max RPM x CID x volumetric efficiency / 3456=CFM)
a stock motor is prob around 70%VE a tuned is about 85%VE a professional is  95%+
so with that said
6500rpms X 383 X 90%VE (and thats prob a little much)/3456=648.

i dont want to get into whats his best carb when a carb isnt his problem right now after we fix the non running issue we can dip into "best" carb
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Offline fxrsrider

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Re: 383 Chevy Stroker
« Reply #17 on: May 23, 2015, 03:26:41 pm »
Quote from: Irish_Alley on May 23, 2015, 02:16:21 pm
the formula for finding the cfm of a carb is (max RPM x CID x volumetric efficiency / 3456=CFM)
a stock motor is prob around 70%VE a tuned is about 85%VE a professional is  95%+
so with that said
6500rpms X 383 X 90%VE (and thats prob a little much)/3456=648.

i dont want to get into whats his best carb when a carb isnt his problem right now after we fix the non running issue we can dip into "best" carb

agreed, but good to know.  Thank you.
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Offline 454 Camper Special

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Re: 383 Chevy Stroker
« Reply #18 on: May 23, 2015, 03:44:31 pm »
Yeah....well... Brought her up on tdc #1.. Gonna check the coil... It just ain't firing..
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Offline 454 Camper Special

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Re: 383 Chevy Stroker
« Reply #19 on: May 23, 2015, 03:53:12 pm »
Put the 600 back on...cause that's the last time she ran... Plugs are wet..  Turned the regulator all the way out... Thinking it might be gettin too much fuel pressure.. Bought ready to check the coil...can't see it being that though...roughly a year old MSD Pro Billett HEI... Got the ignition wire right side...tach going to the tach wire they provided... Got the 6-AL box on firewall...just waiting to be wired...thinkin on lockin it out for mechanical advance instead on vaccuum on that 6-AL...
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Online bd

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Re: 383 Chevy Stroker
« Reply #20 on: May 23, 2015, 04:40:14 pm »
If there isn't any spark, check for switched B+ to the ignition system.  Since the symptoms occurred shortly after you installed the Holley, look for any wiring you may have nudged or knocked loose or grounded inadvertently.
« Last Edit: May 23, 2015, 05:33:57 pm by bd »
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Offline 454 Camper Special

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Re: 383 Chevy Stroker
« Reply #21 on: May 23, 2015, 05:42:29 pm »
Sorry.. haven't been checkin my messages.. Making haist with what daylight is available...
« Last Edit: May 24, 2015, 09:53:38 am by bd »
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Offline jg1977c20

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Re: 383 Chevy Stroker
« Reply #22 on: May 23, 2015, 07:24:24 pm »
i'm just going to assume you havent checked the float level ? ive installed a few carbs over the years where somebody at the factory either didnt set right or set it at all
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Offline 454 Camper Special

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Re: 383 Chevy Stroker
« Reply #23 on: May 24, 2015, 08:19:27 am »
Firing issue's... No fire... Getting gas... Thought maybe it was over carbed...as my plugs are soaked... New NGK Platinum G-Force... 8mm Accel wires... Ran 2 weekends ago then just quit... I've narrowed it down to no fire... Why would it run...then quit and not fire again... Tested the coil and ignition wires with a multi meter yesterday... 11.5 V.. ??
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Offline 454 Camper Special

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Re: 383 Chevy Stroker
« Reply #24 on: May 24, 2015, 08:27:40 am »
And also I brought it up on the compression stroke dtc #1... rotor button pointing to #1... and on the cap #1 plug wire is right lined with rotor button... checked and recheck firing order... It's rite on... You suppose the module in the HEI would fail it would cause it to quit.. ?? Maybe I should be checking that too..??
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Offline 454 Camper Special

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Re: 383 Chevy Stroker
« Reply #25 on: May 24, 2015, 08:31:42 am »
Quote from: jg1977c20 on May 23, 2015, 07:24:24 pm
i'm just going to assume you havent checked the float level ? ive installed a few carbs over the years where somebody at the factory either didnt set right or set it at all

Yeah I checked em... All good
« Last Edit: May 24, 2015, 09:54:31 am by bd »
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Offline 454 Camper Special

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Re: 383 Chevy Stroker
« Reply #26 on: May 24, 2015, 08:34:46 am »
Narrowed it down to no fire... It ran 2 weekends ago then just quit... Haven't been able to fire it back up since...
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Offline 454 Camper Special

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Re: 383 Chevy Stroker
« Reply #27 on: May 24, 2015, 08:39:01 am »
I'll check switched B+ to the ignition... It's gotta be electrical...
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Offline 454 Camper Special

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Re: 383 Chevy Stroker
« Reply #28 on: May 24, 2015, 10:16:17 am »
Well I checked B+ wire.. Heavy pink wire from firewall wire block... Brown tach wire to tach side... Firing order on MSD Pro Billett HEI starting from ignition and tach block.: 21843657... On compression stroke rotor button line up with #1 wire... I don't get it..!!
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Offline 454 Camper Special

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Re: 383 Chevy Stroker
« Reply #29 on: May 24, 2015, 10:30:12 am »
I can't see it being the distrutor... farely new..! Unless I'm advanced to far on initial...?? That shouldn't matter though...
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