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03-28-2009, 10:51 AM
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#31
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Neanderthal
Join Date: Mar 2008
Posts: 5,320
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Quote:
Originally Posted by big2bird
You mean there will be some real Cobra's there?  |
Describe a real Cobra for me. 
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64 Vette Roadster 400 ci
1990 F150 351 ci SuperCharged
48 Harley Pan Head 76 ci
2016 Nissan Altma
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03-28-2009, 11:02 AM
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#32
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Neanderthal
Join Date: Mar 2008
Posts: 5,320
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Quote:
Originally Posted by enkeivette
9:1 with my thicker MLS
Hyd Roller .576 in .594 ex Lift 239in 245ex Duration @ .05 110LSA
Motor made 135 at 9.5:1 And it's always seemed to me like it's made about 20% less hp than comparable setups. It only made 520 crank with 5lbs, granted it was with a 14:1 afr, but still it should have made close to 500 without boost.
Once I sealed up the intake gaskets and tightened the belt after dyno day, it made 10lbs.
Not going to do any testing, time to pull the heads, and then the pistons. Pistons are coming out for sure, I can only hope that the cylinders are ok. I'd like to do this without pulling the motor. If the pistons are ok, I will resuse them. If not. I will get some blower slugs and drop my CR and order a smaller pulley when funds allow. It would be awesome to run 19lbs...
BTW, broken rings or not, I slaughtered the guy that I was racing. And I'd do it again, 60 psi in several cylinders or not. Watch out suckas!
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I blew 4 piston's ring lands out of mine. The cylinders were fine, but I stopped running the motor right away. 
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64 Vette Roadster 400 ci
1990 F150 351 ci SuperCharged
48 Harley Pan Head 76 ci
2016 Nissan Altma
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03-28-2009, 12:29 PM
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#33
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Power's off.
Join Date: Dec 2008
Posts: 673
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Quote:
Originally Posted by BRUTAL64
Describe a real Cobra for me. |
http://www.prc68.com/I/CSX3282.shtml
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Chrome don't get you home.
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03-28-2009, 12:40 PM
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#34
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Neanderthal
Join Date: Mar 2008
Posts: 5,320
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Quote:
Originally Posted by big2bird
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Yep, that's the "Cobra" I grew up with. 
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64 Vette Roadster 400 ci
1990 F150 351 ci SuperCharged
48 Harley Pan Head 76 ci
2016 Nissan Altma
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03-28-2009, 05:41 PM
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#35
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Boost Junkie
Join Date: Aug 2008
Posts: 729
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Quote:
Originally Posted by joedls
If he has a defective or plugged PCV system, it can cause excessive crankcase pressure.
Also, a leakdown test can help pinpoint where he is losing compression and exactly how much.
If he can clearly hear a whooshing/howling by listening at the oil filler cap during the leakdown test, he's losing compression through the rings.
If he can hear it (or even feel puffs on his hand) at the tail pipe, then it's his exhaust valve on that cylinder.
If he can clearly hear a whooshing/howling by listening at the carb/intake manifold, then it's his intake valve on that cylinder.
If he can see it bubbling in the radiator, it could be a head gasket, although it doesn't sound like that's it.
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Good to have you back Joe, sorry for your loss! My condolences...
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Mods: Coilovers, Mopar CAI, Maxxfab o2, catless DP w/ Borla exhaust...
Best ET 14.668 see timeslip
Mods to come: rims + rubber, intercooler, piping, Stage 3 equivelent turbo system with aftermarket turbo and all supporting systems. Goal HP: 400fwhp Goal ET: 11.90 on slicks.
<guy in turbo eclipse>
I'd race ya, but you'd eat me up dawg!!!
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04-12-2009, 02:25 AM
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#36
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Super Moderator
Join Date: Dec 2007
Posts: 6,850
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I think my low engine vacuum might be another sign that my rings are upside down.
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I <3 forced induction.
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04-22-2009, 06:59 PM
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#37
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Senior Member
Join Date: Dec 2008
Posts: 123
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Did you ever get the autopsy done? I've been watching and haven't seen what exactly happened.
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04-22-2009, 07:29 PM
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#38
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Senior Member
Join Date: Mar 2008
Posts: 209
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I think it's a secret... BTW Einkeivette...I have an appointment tomorrow with Dr. Dyno. Need to play with my F.A.S.T. fuel injection, do some laptop tuning and get things optimized. It feels freekin strong compared to how it ran with the Holley. |
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07-31-2009, 09:11 PM
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#39
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Power's off.
Join Date: Dec 2008
Posts: 673
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Quote:
Originally Posted by TimAT
Did you ever get the autopsy done? I've been watching and haven't seen what exactly happened.
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I have the pics. However, my computer upgrades have taken a beating. I believe I have to update my Motherboard Bios, whatever the hell that means. Tomarrow maybe. 
__________________
Chrome don't get you home.
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07-31-2009, 10:13 PM
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#40
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Super Moderator
Join Date: Dec 2007
Posts: 6,850
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Quote:
Originally Posted by big2bird
I have the pics. However, my computer upgrades have taken a beating. I believe I have to update my Motherboard Bios, whatever the hell that means. Tomarrow maybe. |
I forgot my piston slept over at your house. There is another thread around here with the blown piston in the hole.
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I <3 forced induction.
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