Cams/Supercharger

acmillr · February 15th, 2007, 08:45 PM

I've got the comp cams 270 cams with 113 degrees of lobe seperation. Are they going to be compatible with a supercharger?
This may seem like a newb question, but I've read some conflicting info.

Also, does anyone know, off hand, how many degrees of lobe seperation the oem PI cams had? I have not been able to locate that info.

acmillr · February 15th, 2007, 09:22 PM

Furthermore, when these kits are listed as tuner kits- does this mean that everything (hardware wise) comes with the kit and you would have to get it dyno tuned yourself?
Wouldn't that be the best route any way, especially if you have a different than stock set up?

Drgnracin72 · February 15th, 2007, 09:24 PM

yeah youll be fine using that cam with a s/c now a turbo, no. but s/c your good to go. yes when its a tuner kit, it comes with only the s/c and installation stuff, no tuner. and with the other way when ya get a tuner, it should only be used as a crutch to get you to a tuner

acmillr · February 15th, 2007, 09:26 PM

OK, so there an advantage to getting a pretuned kit over just getting the tuner kit, installing it, and trailering my car to the dyno shop?

Drgnracin72 · February 15th, 2007, 09:28 PM

well youll be able to drive the car to gt a dynp, but seriously i think its better to trailor. you dont have to worry about being tempted to romp all over it. every car responds differently to mods so that canned tune isnt gonna be spot on. hate tp hurt your motor cuz of an off tune

acmillr · February 15th, 2007, 09:31 PM

Thanks for the help.
And just to get a little more detailed- I'm assuming that more lobe seperation is better for FI, but I'm really not sure. Or am I worrying about seperation to much as opposed to duration.

Drgnracin72 · February 15th, 2007, 09:33 PM

no the seperation has to do with boost. you want a wider ls ith boost, so your not blowing boost out the exhaust port when the intake port is opening

acmillr · February 15th, 2007, 09:34 PM

Yeah, I see that. So, are you wanting more duration and seperation, more seperation and less duration, or just a happy medium.

Drgnracin72 · February 15th, 2007, 09:39 PM

well you can def have to muc of both. the way you put it, id asay a happy medium

acmillr · February 15th, 2007, 09:44 PM

Thanks, I am going to look some more and see if I can't find some in depth tech articles on this subject. Not that I need to know, but it would be nice to have a firm grip on what makes a boosted motor really tick. I always see alot of really different dyno #'s posted by people with similar setups and different cams. I just hope I don't inadvertantly rob power from my charger with this cam.
I guess that's how I should have posed the first question- Are the bigger cams going to take away HP numbers with the supercharger as compared to the oem cams?

Drgnracin72 · February 15th, 2007, 10:16 PM

no they will only help you

acmillr · February 16th, 2007, 04:59 AM

I'm not sure what ONYL help is but it sounds great. Thanks

February 15th, 2007, 08:45 PM	#1
acmillr MM's Mad Scientist Slow Fella Join Date: Jul 2006 Location: Tupelo, MS Posts: 5,111 iTrader: 2 reviews	Cams/Supercharger I've got the comp cams 270 cams with 113 degrees of lobe seperation. Are they going to be compatible with a supercharger? This may seem like a newb question, but I've read some conflicting info. Also, does anyone know, off hand, how many degrees of lobe seperation the oem PI cams had? I have not been able to locate that info. __________________

February 15th, 2007, 09:22 PM	#2
acmillr MM's Mad Scientist Slow Fella Join Date: Jul 2006 Location: Tupelo, MS Posts: 5,111 iTrader: 2 reviews	Furthermore, when these kits are listed as tuner kits- does this mean that everything (hardware wise) comes with the kit and you would have to get it dyno tuned yourself? Wouldn't that be the best route any way, especially if you have a different than stock set up? __________________

February 15th, 2007, 09:24 PM	#3
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,635 iTrader: 2 reviews	yeah youll be fine using that cam with a s/c now a turbo, no. but s/c your good to go. yes when its a tuner kit, it comes with only the s/c and installation stuff, no tuner. and with the other way when ya get a tuner, it should only be used as a crutch to get you to a tuner __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

February 15th, 2007, 09:26 PM	#4
acmillr MM's Mad Scientist Slow Fella Join Date: Jul 2006 Location: Tupelo, MS Posts: 5,111 iTrader: 2 reviews	OK, so there an advantage to getting a pretuned kit over just getting the tuner kit, installing it, and trailering my car to the dyno shop? __________________

February 15th, 2007, 09:28 PM	#5
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,635 iTrader: 2 reviews	well youll be able to drive the car to gt a dynp, but seriously i think its better to trailor. you dont have to worry about being tempted to romp all over it. every car responds differently to mods so that canned tune isnt gonna be spot on. hate tp hurt your motor cuz of an off tune __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

February 15th, 2007, 09:31 PM	#6
acmillr MM's Mad Scientist Slow Fella Join Date: Jul 2006 Location: Tupelo, MS Posts: 5,111 iTrader: 2 reviews	Thanks for the help. And just to get a little more detailed- I'm assuming that more lobe seperation is better for FI, but I'm really not sure. Or am I worrying about seperation to much as opposed to duration. __________________

February 15th, 2007, 09:33 PM	#7
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,635 iTrader: 2 reviews	no the seperation has to do with boost. you want a wider ls ith boost, so your not blowing boost out the exhaust port when the intake port is opening __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

February 15th, 2007, 09:34 PM	#8
acmillr MM's Mad Scientist Slow Fella Join Date: Jul 2006 Location: Tupelo, MS Posts: 5,111 iTrader: 2 reviews	Yeah, I see that. So, are you wanting more duration and seperation, more seperation and less duration, or just a happy medium. __________________

February 15th, 2007, 09:39 PM	#9
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,635 iTrader: 2 reviews	well you can def have to muc of both. the way you put it, id asay a happy medium __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

February 15th, 2007, 09:44 PM	#10
acmillr MM's Mad Scientist Slow Fella Join Date: Jul 2006 Location: Tupelo, MS Posts: 5,111 iTrader: 2 reviews	Thanks, I am going to look some more and see if I can't find some in depth tech articles on this subject. Not that I need to know, but it would be nice to have a firm grip on what makes a boosted motor really tick. I always see alot of really different dyno #'s posted by people with similar setups and different cams. I just hope I don't inadvertantly rob power from my charger with this cam. I guess that's how I should have posed the first question- Are the bigger cams going to take away HP numbers with the supercharger as compared to the oem cams? __________________

February 15th, 2007, 10:16 PM	#11
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,635 iTrader: 2 reviews	no they will only help you __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

February 16th, 2007, 04:59 AM	#12
acmillr MM's Mad Scientist Slow Fella Join Date: Jul 2006 Location: Tupelo, MS Posts: 5,111 iTrader: 2 reviews	I'm not sure what ONYL help is but it sounds great. Thanks __________________

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