LT1-LT4 Modifications 1993-97 Gen II Small Block V8

who's running cc503 w/o a tune ...

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Old 04-09-2009, 07:36 PM
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Originally Posted by saylorZ28
no i dont get that kind of pressure and it is slow to rise as rpms rise and on start up it takes a min to read .. plus i only get about 40 to 45 at high rpms
On the mechanical gauge?
Old 04-09-2009, 08:44 PM
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If its that low at idle and does increase to over 40 it sounds more like a cam bearing issue. If your rods/mains were that bad at idle I doubt you'd see 40+ psi later on.
Old 04-09-2009, 09:11 PM
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yea i'm sick at this damn thing really dishearted...
Old 04-09-2009, 09:51 PM
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just pulled the intake and there is metal all in the lifter valley so i geuss it will be a complate tear down and rebuild ... this time around i geuss i will buleprooff the bottom end and port the heads and intake .....
Old 04-10-2009, 03:32 AM
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Originally Posted by saylorZ28
just pulled the intake and there is metal all in the lifter valley so i geuss it will be a complate tear down and rebuild ... this time around i geuss i will buleprooff the bottom end and port the heads and intake .....
Sucks to hear that man...
Build it bigger and better.
Old 04-10-2009, 12:29 PM
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Did you by chance do the spring swap in the oil pump? It's suppose to keep the PSI up higher when you do a cc503 swap. I did that when I did my CC503 swap. Granted, I haven't driven it, just ran it in park and revved a bit, and I did have my stock tune recalibrated for 30# injectors temporarily so it will run and not flood the cylinders with fuel until I can get tuned correctly. I apologize for my newbness on this subject but my oil gauge stays around 60-90... is this the same gauge you guys are talking about?

If you haven't done the white spring swap, I'd highly recommend it.

Edit: Sorry, didn't read the whole thread. Sorry to hear about the tear down.

Last edited by meissenation; 04-10-2009 at 12:37 PM.
Old 04-10-2009, 12:32 PM
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Originally Posted by meissenation
Did you by chance do the spring swap in the oil pump? It's suppose to keep the PSI up higher when you do a cc503 swap. I did that when I did my CC503 swap. Granted, I haven't driven it, just ran it in park and revved a bit, and I did have my stock tune recalibrated for 30# injectors temporarily so it will run and not flood the cylinders with fuel until I can get tuned correctly. I apologize for my newbness on this subject but my oil gauge stays around 60-90... is this the same gauge you guys are talking about?

If you haven't done the white spring swap, I'd highly recommend it.
The spring swap is not required, but it is always a great idea to bump up your oil pressure a little. My oil gauge ends at 80psi. But I only get to around ~65psi at WOT. I don't know why your oil pressure sits so high
Old 04-10-2009, 12:58 PM
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I was going off of this gauge picture - I know mine is usually at the 1/2 mark but I couldn't remember the numbers so I looked up a camaro gauge cluster on Google to find the numbers. Then again I've only had mine running for a few days and maybe 6 idle runs, so I could be wrong entirely.. and to add to it, I've got a 3.8 gauge cluster - maybe the sensor is reading differently.

http://i293.photobucket.com/albums/m...g?t=1239386266


Edit:
Here's a video of when my car reached idle, you can see the gauge at 1:38.
http://www.youtube.com/watch?v=bjHrqGI-c6A

Last edited by meissenation; 04-10-2009 at 01:10 PM.
Old 04-10-2009, 01:27 PM
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Originally Posted by meissenation
I was going off of this gauge picture - I know mine is usually at the 1/2 mark but I couldn't remember the numbers so I looked up a camaro gauge cluster on Google to find the numbers. Then again I've only had mine running for a few days and maybe 6 idle runs, so I could be wrong entirely.. and to add to it, I've got a 3.8 gauge cluster - maybe the sensor is reading differently.

http://i293.photobucket.com/albums/m...g?t=1239386266


Edit:
Here's a video of when my car reached idle, you can see the gauge at 1:38.
http://www.youtube.com/watch?v=bjHrqGI-c6A
Sounds sick man! My car sounds similar, hmmm...
I see what you mean by the gauge, but I'd venture to say that the gauge will point to the same spot if it were a 0-80 gauge. That would make your hot idle (and likely your WOT) oil pressure at a little over 60psi (much more plausible than 90+ psi from a stock pump w/ a GM white spring) which is great.
Old 04-10-2009, 02:03 PM
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Originally Posted by saylorZ28
just pulled the intake and there is metal all in the lifter valley so i geuss it will be a complate tear down and rebuild ... this time around i geuss i will buleprooff the bottom end and port the heads and intake .....
Sorry to hear that, not a good feeling, but hang in there it will be worth it in the end when you can drive the car as hard as you want without worrying about it trust me.

Do you have any idea what the shavings are from?
Old 04-10-2009, 09:10 PM
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i'm geussing cam bearings tho they were fine when i tore it down and used plenty of lube but i am geussing that when the lifters froze solid that is what done it . i replaced them and the rockers and did a few heat cycles for the springs and it held great oil pressure but when i drove it thats when it happened ... i thaught it might be a bad sending unit but then i put a mechnical gauge on it and sure enough slow rising and low hot idle ... i could run it but i am just goin to down it and rebuild it pefully had alot tied up in this cam swap ... i got alot in my car ...period...now i will just tear it down and slowly build it ...whats the biggest cid lt1 and still be streetable
Old 04-10-2009, 10:43 PM
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Sounds like you are in need of a 355 build and nice LE2 heads
Old 04-11-2009, 12:13 AM
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A properly built 396 will be very streetable.
Old 04-11-2009, 12:03 PM
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how do you get a 396 ?
Old 04-11-2009, 04:32 PM
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3.875" stroke
Old 04-11-2009, 05:14 PM
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bore? rods?
Old 04-11-2009, 06:43 PM
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.030" over, most run 6" rods



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