CAM SELECTION

[IROC-Z]

NEED TO CHOOSE ONE

LT1 355 8.8:1 compression, heavily ported stock heads 8/10 if 10 is as ported as you can get, lightly ported LT1 intake, 58mm TB, #50 injectors, Vortech S-Trim 12lbs boost

What cam matches up nicely with these specs?

[79 Z28]

rpm range? id pick a mid 230 for sure

[IROC-Z]

rpm range? id pick a mid 230 for sure


you know nothing about fuel injection :P

[79 Z28]

rpm range? id pick a mid 230 for sure


you know nothing about fuel injection :P
ok so explain to me what fuel injection has to do with cam duration? other then nothing different then a carb. fuel plus air get to valve. then the rest is up to the rest of the motor. so dont tell me mr. " you know nothing about fuel injection " :P :-*

[IROC-Z]

rpm range? id pick a mid 230 for sure


you know nothing about fuel injection :P
ok so explain to me what fuel injection has to do with cam duration? other then nothing different then a carb. fuel plus air get to valve. then the rest is up to the rest of the motor. so dont tell me mr. " you know nothing about fuel injection " :P :-*


that just shows you how little you know... whats the minimum lobe seperatiion you can run on an EFI V8? What the minimum lobe centerline you can run?

I need to know what a good cam is that will work well with my fuel injection setup and boost numbers

[sleepybu]

NEED TO CHOOSE ONE

LT1 355 8.8:1 compression, heavily ported stock heads 8/10 if 10 is as ported as you can get, lightly ported LT1 intake, 58mm TB, #50 injectors, Vortech S-Trim 12lbs boost

What cam matches up nicely with these specs?


comp 276HR-12 OR 276HR-14 or if you want to buzz it a little 290HR-12

:)

[IROC-Z]

ok so it looks like I'm going for the GM performance LT4 hotcam unless anyone can tell me a better one.


218/228 @ .50
5.25/5.25 lift with 1.6 rockers
112 lobe separation

[sleepybu]

ok so it looks like I'm going for the GM performance LT4 hotcam unless anyone can tell me a better one.


218/228 @ .50
5.25/5.25 lift with 1.6 rockers
112 lobe separation


you don't like my cam's :-\

276HR-12 224/230 .533/544 (1.6rr) 112 LS

276HR-14 220/230 .544/.544 (1.6rr) 114 LS

:P

[Topless88]

ok so it looks like I'm going for the GM performance LT4 hotcam unless anyone can tell me a better one.


218/228 @ .50
5.25/5.25 lift with 1.6 rockers
112 lobe separation

more duration!!!!!!!
adam call 1-800-999-0853(cam help by comp)
they will put all your specs in the computer and tell you the part# for the performance you want

[79 Z28]

rpm range? id pick a mid 230 for sure


you know nothing about fuel injection :P
ok so explain to me what fuel injection has to do with cam duration? other then nothing different then a carb. fuel plus air get to valve. then the rest is up to the rest of the motor. so dont tell me mr. " you know nothing about fuel injection " :P :-*


that just shows you how little you know... whats the minimum lobe seperatiion you can run on an EFI V8? What the minimum lobe centerline you can run?

I need to know what a good cam is that will work well with my fuel injection setup and boost numbers
actually you can run a 106 lca on a efi car no problem. there is no difference, its just boost and nos that require different needs, not the fi system, n/a you can run a 106 anyday :P

[IROC-Z]

rpm range? id pick a mid 230 for sure


you know nothing about fuel injection :P
ok so explain to me what fuel injection has to do with cam duration? other then nothing different then a carb. fuel plus air get to valve. then the rest is up to the rest of the motor. so dont tell me mr. " you know nothing about fuel injection " :P :-*


that just shows you how little you know... whats the minimum lobe seperatiion you can run on an EFI V8? What the minimum lobe centerline you can run?

I need to know what a good cam is that will work well with my fuel injection setup and boost numbers
actually you can run a 106 lca on a efi car no problem. there is no difference, its just boost and nos that require different needs, not the fi system, n/a you can run a 106 anyday :P


let me know how that turns out for ya

[79 Z28]

if that were indeed the case, that makes fuel injection obsolete, and junk. cant handle a 106 burn on it. i wish someone can explain to me why a injector squirting when its told to has any bearing on cam separation. air come in the same to the motor, and instad of a mecanical ventury opening that atomizes the fuel, a injector does it. no difference at all, except for accuracy, and efficiency of the amount of fuel used. that makes absolutely no sense why it wouldnt work.

just cuz the small range of cam thats offered for LT1 has nothing to do with what it can work with, its a certian cam cuz the blocks different and a standard roller cam wont fit. but as far as the FI goes, it can work with whatever, just get the computer to tell it what to do. its computer controlled carbureation thats about it

[IROC-Z]

if that were indeed the case, that makes fuel injection obsolete, and junk. cant handle a 106 burn on it. i wish someone can explain to me why a injector squirting when its told to has any bearing on cam separation. air come in the same to the motor, and instad of a mecanical ventury opening that atomizes the fuel, a injector does it. no difference at all, except for accuracy, and efficiency of the amount of fuel used. that makes absolutely no sense why it wouldnt work.

just cuz the small range of cam thats offered for LT1 has nothing to do with what it can work with, its a certian cam cuz the blocks different and a standard roller cam wont fit. but as far as the FI goes, it can work with whatever, just get the computer to tell it what to do. its computer controlled carbureation thats about it


the sensors start having problems with anything less than a 110 LSA and the computer won't run the car very well. With a wild tune you can get the LSA down to about 108 but 106 just won't run. Sets off the knock sensor and messes with the timing. You end up with a car that only runs well under WOT.

[IROC-Z]

Looks like I found a good cam

XE230-236

Dur @.50 230/236
Lift with 1.6's 5.44/5.55
LSA 114

[79 Z28]

if that were indeed the case, that makes fuel injection obsolete, and junk. cant handle a 106 burn on it. i wish someone can explain to me why a injector squirting when its told to has any bearing on cam separation. air come in the same to the motor, and instad of a mecanical ventury opening that atomizes the fuel, a injector does it. no difference at all, except for accuracy, and efficiency of the amount of fuel used. that makes absolutely no sense why it wouldnt work.

just cuz the small range of cam thats offered for LT1 has nothing to do with what it can work with, its a certian cam cuz the blocks different and a standard roller cam wont fit. but as far as the FI goes, it can work with whatever, just get the computer to tell it what to do. its computer controlled carbureation thats about it


the sensors start having problems with anything less than a 110 LSA and the computer won't run the car very well. With a wild tune you can get the LSA down to about 108 but 106 just won't run. Sets off the knock sensor and messes with the timing. You end up with a car that only runs well under WOT.
is there any other way? LOL well, tune the computer then. i think it can be done, theres a whole new world in 106 that needs to be explored :P

[Topless88]

Looks like I found a good cam

XE230-236

Dur @.50 230/236
Lift with 1.6's 5.44/5.55
LSA 114

thats better!!! but dont you meen .544/.555"

had to make space sorry

[IROC-Z]

Looks like I found a good cam

XE230-236

Dur @.50 230/236
Lift with 1.6's 5.44/5.55
LSA 114

thats better!!! but dont you meen .544/.555"


thank you, yes i do

found a couple more

CC XE lobes #3190/3192 gives 214/224 @ 0.050" .565/.605" on a 114LSA with no advance.

CC XE #3192/3196 gives 224/236 .605/.624" on a 114-116LSA with 4 or more degrees of advance.

[BPS]

Looks like I found a good cam

XE230-236

Dur @.50 230/236
Lift with 1.6's 5.44/5.55
LSA 114


that's some lift ;D

I would go no lower on the LSA or you'll blow boost straight out the exhaust