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Author
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Topic: 6000 RPM BOG DOWN
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RONNIE
Gearhead Posts: 154
From: MD
Registered: Jan 2003
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posted 10-29-2005 07:28 PM
   
I JUST GOT DONE PUTTING MY MOTOR BACK TOGATHER I BOUGHT A NEW SHORT BLOCK AND AROUND 5500-6000 IT FEELS LIKE ITS RUNNING OUT OF FUEL BUT ITS NOT ITS GOT GOOD FUEL PRESSURE. IT LAYS DOWN FOR A SECOND THEN PICKS UP I SHIFT AT 6800 RPMS I TRYED 2 CARBS, NO LUCK, ANY ADVICE THANKS RONNIE------------------
http://groups.msn.com/ronniesracingphotos/ronniesfrontpage.msnw
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Greg Pettit
Gearhead Posts: 125
From: Dallas, TX
Registered: Nov 2001
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posted 10-29-2005 10:17 PM
Valve springs may be weak. Good springs solved my mystery lay down last year.Greg ------------------
'71 Torino GT 545 stroker, Ported Edelbrock CJ heads, 11.8:1 compression, Victor intake with 850 DP, TCI streetfighter converter, 4.56 detroit locker, full interior with A/C
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RONNIE
Gearhead Posts: 154
From: MD
Registered: Jan 2003
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posted 10-30-2005 04:38 AM
Thanks for the reply, Iam uesing Edelbrock RPM heads that are 2 years old, But your right it acks like valve float i once had that problem with a hydraulic cam, Now its a soild lift cam.I just got done puttung the motor back togather i had a crack in the CID.wall and bought a new short block, And never had that problem with the old block. The only thing is differant is the old motor had 10.5.1 comp. now its 10.1 compression. I just came in and took all the plugs out and did a compression check they all look good 165-170.The #1 CID. plug is full of gas? Iam going to take the valve cover off and what i find, Thanks Ronnie------------------
http://groups.msn.com/ronniesracingphotos/ronniesfrontpage.msnw
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prostreeter
Gearhead Posts: 154
From: littleton,co
Registered: Mar 2005
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posted 10-30-2005 09:19 AM
Same thing happened to my cleveland this summer.High rpm miss/stumble at 5 to 6k.Determined I was way over jetted.Put in the stock jets and took care of 75% of the stumble.Replaced the plugs and problem solved.Three plugs were wet.
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RONNIE
Gearhead Posts: 154
From: MD
Registered: Jan 2003
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posted 10-30-2005 10:29 AM
quote:
Originally posted by prostreeter:
Same thing happened to my cleveland this summer.High rpm miss/stumble at 5 to 6k.Determined I was way over jetted.Put in the stock jets and took care of 75% of the stumble.Replaced the plugs and problem solved.Three plugs were wet.
THANKS I NEVER THOUGHT OR THAT I WILL GIVE IT A TRY, THANKS, RONNIE------------------
http://groups.msn.com/ronniesracingphotos/ronniesfrontpage.msnw
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prostreeter
Gearhead Posts: 154
From: littleton,co
Registered: Mar 2005
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posted 10-30-2005 01:33 PM
I doubt the springs are the cause,at least I would hope not.A wet plug will cause your high rpm miss.Hope it's as simple as that.Let us know the outcome.
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RONNIE
Gearhead Posts: 154
From: MD
Registered: Jan 2003
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posted 11-01-2005 05:26 AM
quote:
Originally posted by prostreeter:
I doubt the springs are the cause,at least I would hope not.A wet plug will cause your high rpm miss.Hope it's as simple as that.Let us know the outcome.
Rejet the carb. and new plugs problem gone, Thanks Yall Ronnie------------------
http://groups.msn.com/ronniesracingphotos/ronniesfrontpage.msnw
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prostreeter
Gearhead Posts: 154
From: littleton,co
Registered: Mar 2005
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posted 11-01-2005 07:55 AM
Right on Ronnie.....
Love them simple fixes!
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