is this possible? - Page 4 - ZR-1 Net Registry Forums

tomtom72 · 02-15-2007

Hi Guys, I guess I'm in Aurora40's camp, I would like to learn more. I have the CD on the advanced ZR-1 course from STG....alot of us got copies the last go 'round from a brother owner.

I'm not anything but a backyard type but a professional mechanic friend of mine "taught" me on two of my own motors about rebuilding a sb chevy. He insisted that I learn how to "degree a cam". I know one thing for sure, the process made a big difference in my boat motor as to where in the rpm range I got power. Can't say anything about the LT-1 in my C3...I put that cam in at the factory "center line"(?) or "straight-up". I did degree it & found that I had to "adjust" the cam gear to get that on the money. Just like my mechanic friend said I would have to.

In the STG CD the subject on the cams was a bit light on all of that stuff. Is an LT5 done in a different way? I mean they made it sound simple....or perhaps it was the simpleton watching the CD.

Would anyone like to share a good information source that could be used as a learning tool????

Tom

jonszr1 · 02-15-2007

I would talk to the different tuners. I talked with corey about the timing thing and he says its 10 to 15 max . also when you go after the hp figs you start to loose low end tq. the timing can make a bigger diff in the 368-385s due to the unshrouding of the valves.

Aurora40 · 02-24-2007

http://zr1specialist.com/HAT%20Web/a..._camshafts.htm

tomtom72 · 02-27-2007

Thanks for the link Bob! I don't think that this guy is gonna be doing any cam timming on an LT5 any time soon after reading that write up!

That's a bit more than I wanna do at my skill level! That ain't no typical sb chevy stuff!

Tom

Kevin · 02-27-2007

I think vandorn had the magical cam timing setup for a stock cube motor back in the day

FU · 02-28-2007

There is a 91 out there with some bolt on's and P&P work timed cam's that run's 11:5's @ 123 + all day long.

And yes I do beleive that 8388's reading's are correct

A good bolt on P&P car is a hard combo to beat for the $$

jonszr1 · 02-28-2007

Frank, I too would believe him if the motor was ported. but if you read it closely , he stgates it is an absoultly stk motor with no porting at all. TOTALLY STOCK. THAT I DO NOT BELIEVE. I offered to pay for a test session @ Coreys' . he replied with a smart mouthed punk statement. that I was being childish. No class just a little punk with a mouth. IMHO.

8388 · 02-28-2007

Quote:

Originally Posted by jonszr1

Frank, I too would believe him if the motor was ported. but if you read it closely , he stgates it is an absoultly stk motor with no porting at all. TOTALLY STOCK. THAT I DO NOT BELIEVE. I offered to pay for a test session @ Coreys' . he replied with a smart mouthed punk statement. that I was being childish. No class just a little punk with a mouth. IMHO.

Please take the time to read was done to the 93 and newer engines, and maybe then you'll understand why my plenum was never removed.

Also, you might want to think before you start calling someone a smart mouth punk, with no class.
-SAM-

jonszr1 · 02-28-2007

NO , you might really want to think who you are dealing with son. I would make a phone call to Corey before you keep flappin your yap. Put up or go fish.

GrayZ · 02-28-2007

Jon...
easy there big fella...Sam is not a punk..in any sense of the word.
He has 2 zr1's and a stable of other cars and is a corvette guy...
I am sorry you feel like..he's not stating the truth...but...you must
remember..things happen at the factory sometimes...that's why all
cars don't run the same..some faster or slower. Sam is a stand up guy,
and has many business interests, that keep him very busy. No need to attack the man's integrity...i'm the one that started this thread, to see
if there were other car's out there..with similiar results..i've heard of another.."freak" car...but don't know who owns, it. Sam never stated
anything on his car's engine was not altered, he just explained,
HE has never done anything to it...since it left the factory.
I think, someday, something good for all zr1s could possibly come out of a
thread of this nature..after all, sharing results, and idea's, makes the world go round. One, other thing, no body died and made me king of the day...i just know..from experience..that one day..you might..need some help, or you might be standing in line at a zr1 function...and you'll meet a
guy in the food line...with his wife and kids...and it could be someone you
were a little mean to on a forum...

like me. and then you'll feel bad,
like i did....food for thought..keith

02-15-2007	#1
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,609	Re: is this possible? Hi Guys, I guess I'm in Aurora40's camp, I would like to learn more. I have the CD on the advanced ZR-1 course from STG....alot of us got copies the last go 'round from a brother owner. I'm not anything but a backyard type but a professional mechanic friend of mine "taught" me on two of my own motors about rebuilding a sb chevy. He insisted that I learn how to "degree a cam". I know one thing for sure, the process made a big difference in my boat motor as to where in the rpm range I got power. Can't say anything about the LT-1 in my C3...I put that cam in at the factory "center line"(?) or "straight-up". I did degree it & found that I had to "adjust" the cam gear to get that on the money. Just like my mechanic friend said I would have to. In the STG CD the subject on the cams was a bit light on all of that stuff. Is an LT5 done in a different way? I mean they made it sound simple....or perhaps it was the simpleton watching the CD. Would anyone like to share a good information source that could be used as a learning tool???? Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

02-15-2007	#2
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,406	Re: is this possible? I would talk to the different tuners. I talked with corey about the timing thing and he says its 10 to 15 max . also when you go after the hp figs you start to loose low end tq. the timing can make a bigger diff in the 368-385s due to the unshrouding of the valves.

02-24-2007	#3
Aurora40 Join Date: May 2005 Location: Leesburg, VA Posts: 2,704	Re: is this possible? http://zr1specialist.com/HAT%20Web/a..._camshafts.htm

02-27-2007	#4
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,609	Re: is this possible? Thanks for the link Bob! I don't think that this guy is gonna be doing any cam timming on an LT5 any time soon after reading that write up! That's a bit more than I wanna do at my skill level! That ain't no typical sb chevy stuff! Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

02-27-2007	#5
Kevin Join Date: Jun 2005 Location: pittsburgh Posts: 4,624	Re: is this possible? I think vandorn had the magical cam timing setup for a stock cube motor back in the day __________________ It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B"

02-28-2007	#6
FU Join Date: Mar 2004 Location: Found Member Posts: 4,327	Re: is this possible? There is a 91 out there with some bolt on's and P&P work timed cam's that run's 11:5's @ 123 + all day long. And yes I do beleive that 8388's reading's are correct A good bolt on P&P car is a hard combo to beat for the $$

02-28-2007	#7
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,406	Re: is this possible? Frank, I too would believe him if the motor was ported. but if you read it closely , he stgates it is an absoultly stk motor with no porting at all. TOTALLY STOCK. THAT I DO NOT BELIEVE. I offered to pay for a test session @ Coreys' . he replied with a smart mouthed punk statement. that I was being childish. No class just a little punk with a mouth. IMHO.

02-28-2007	#9
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,406	Re: is this possible? NO , you might really want to think who you are dealing with son. I would make a phone call to Corey before you keep flappin your yap. Put up or go fish.

02-28-2007	#10
GrayZ Join Date: Mar 2006 Location: Innsbrook, Missouri Posts: 1,720	Re: is this possible? Jon... easy there big fella...Sam is not a punk..in any sense of the word. He has 2 zr1's and a stable of other cars and is a corvette guy... I am sorry you feel like..he's not stating the truth...but...you must remember..things happen at the factory sometimes...that's why all cars don't run the same..some faster or slower. Sam is a stand up guy, and has many business interests, that keep him very busy. No need to attack the man's integrity...i'm the one that started this thread, to see if there were other car's out there..with similiar results..i've heard of another.."freak" car...but don't know who owns, it. Sam never stated anything on his car's engine was not altered, he just explained, HE has never done anything to it...since it left the factory. I think, someday, something good for all zr1s could possibly come out of a thread of this nature..after all, sharing results, and idea's, makes the world go round. One, other thing, no body died and made me king of the day...i just know..from experience..that one day..you might..need some help, or you might be standing in line at a zr1 function...and you'll meet a guy in the food line...with his wife and kids...and it could be someone you were a little mean to on a forum... like me. and then you'll feel bad, like i did....food for thought..keith