This is topic motor rev to 5000 then tachout???? in forum Tech Talk at Northern California Ford Owners  .


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Posted by 92 ssp (Member # 8013) on :
 
i have a 1970 351 windsor stroke to 408 mild comp cam, ported stock heads harden push rodes ford 1.6 roller rockers, weiand intake with holly 750 double pupmer. when i rev to 5000-5500rpm my car act like i have a rev limiter on it what the hella is that ???? please help [Mad]
 
Posted by turbo50 (Member # 6700) on :
 
check plug gap
 
Posted by 92 ssp (Member # 8013) on :
 
i have new autolight platinum there good
 
Posted by turbo50 (Member # 6700) on :
 
ahhh platinum plugs and carbed cars......they never run like they should.....

if you are convinced its not the plugs check ur msd box if you have one or dist....


Did the problem start after you put the new plugs in?
 
Posted by 92 ssp (Member # 8013) on :
 
its started when i first started it up
 
Posted by turbo50 (Member # 6700) on :
 
well you got my vote for plugs...lets see what the others come up with...not much detail about your ignition system...might wanna go into detail about that also...good luck..
 
Posted by CAILFORNIAGT (Member # 7845) on :
 
u will never beat me in that car! [Mad] [Mad]
 
Posted by JohnB (Member # 969) on :
 
quote:
Originally posted by turbo50:
well you got my vote for plugs...lets see what the others come up with
Same here...but I'll go one further...wrong plugs AND wrong gap.
 
Posted by 92 ssp (Member # 8013) on :
 
im going check the gap again
 
Posted by Blind (Member # 3052) on :
 
I'd suggest buying copper plugs and checking the gap on those before you swap them in.
 
Posted by 92 ssp (Member # 8013) on :
 
ok
 
Posted by Big block 66 f100 (Member # 8867) on :
 
quote:
Originally posted by 92 ssp:
im going check the gap again
im not sure on numbers but your supposed to go with a smaller gap when you have a upgraded ignition system
 
Posted by 92 ssp (Member # 8013) on :
 
man i got up early an when to my boy dyno shop to show him what the car do an he said " valve float" ??? so that mean ..... [BS flag]
 
Posted by jaejae (Member # 7958) on :
 
quote:
Originally posted by 92 ssp:
man i got up early an when to my boy dyno shop to show him what the car do an he said " valve float" ??? so that mean ..... [BS flag]
upgrade you valve springs..i usually get valve float around 6k
 
Posted by 92 ssp (Member # 8013) on :
 
im goin to vic hubbert an get some
 
Posted by JohnB (Member # 969) on :
 
quote:
Originally posted by jaejae:
quote:
Originally posted by 92 ssp:
man i got up early an when to my boy dyno shop to show him what the car do an he said " valve float" ??? so that mean ..... [BS flag]
upgrade you valve springs..i usually get valve float around 6k
If this is the case, make sure you have the proper tools to install them. And not just a spring compressor...
 
Posted by GEARHEAD HAYWARD (Member # 5651) on :
 
Need more Fule
 




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