busted # 7 ringland minutes after
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Teching In
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busted # 7 ringland minutes after picked up from rpm and was on way home (rush hour in dallas) was missing @ 2k called rpm was told probabaly fuel pump....a couple minutes later started to rattle, shut down towed home. tore down and found busted ring land on #7 and trashed combustion chamber. now the heads are @fuestal racing getting ported and fixed.also building 396 short block. but for now i have a stock shortblock and heads. i am thinking about putting it in with my cam and procharger til new stuff is done. will this work ok? i am worried that the tune could have been the problem.i had heard alot of good stuff about them. but now i am hearing other stuff too. any suggestions? thanks....
Originally Posted by clone
picked up from rpm and was on way home (rush hour in dallas) was missing @ 2k called rpm was told probabaly fuel pump....a couple minutes later started to rattle, shut down towed home. tore down and found busted ring land on #7 and trashed combustion chamber. now the heads are @fuestal racing getting ported and fixed.also building 396 short block. but for now i have a stock shortblock and heads. i am thinking about putting it in with my cam and procharger til new stuff is done. will this work ok? i am worried that the tune could have been the problem.i had heard alot of good stuff about them. but now i am hearing other stuff too. any suggestions? thanks....
Originally Posted by V6 Bird
Proabbly a fuel pump? Come on dude...Where you getting on it on your way home at all? They just dont shell rings at cruising speed. Under boost they do.
stock short blocks give up under boost, im sure it didnt happen just cruising, some motors take it longer than others some give up the #7 pretty quick
build a nice stout forged shortbloakc and go enjoy the BOOST
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Teching In
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97 before the pro charger. drove another two months before the charger then had it tuned and was on the way home. when i put heads cam procharger on all the pistons had the same burn pattern/color and no sign of detonation. i am sure the motor was well worn i just want to rule out any other problems.
We don't normally have any problems at 8 psi of boost with an ATI ProCharger. I'd say this engine with all 97 bottles of nitrous having been run through it was probably just waiting to come apart. Bob
A 4.50" pulley should give you a lot more than 4 or 5 pounds of boost, unless you have big cubes and a huge cam. I'd make sure the by pass valve is working correctly, and also look for belt dust on the blower, which would indicate belt slippage. These blower belts need to be really tight. Bob
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thanks bob i checked the belt before tear down. and the cam is a comp xr 265 hr. not very big by most standards. i was not there when they did the tune but could be a problem with the bov. everything is brand new though. thanks for your help. i wish you guys were closer. we may be driving to conn. this summer how far out of the way would yall be?
sorry to say but this is the reason why my car isnt making full 7.5psi, for fear of my motor coming apart.
on another note, i hope your build goes better and you run the psi you want
on another note, i hope your build goes better and you run the psi you want
Originally Posted by clone
thanks bob i checked the belt before tear down. and the cam is a comp xr 265 hr. not very big by most standards. i was not there when they did the tune but could be a problem with the bov. everything is brand new though. thanks for your help. i wish you guys were closer. we may be driving to conn. this summer how far out of the way would yall be?
Last edited by V6 Bird; Jan 14, 2007 at 02:37 PM.
