Futral F13 cam specs?
08-12-2004, 08:33 PM
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Futral F13 cam specs? I'm just wondering if anyone knows the exact specs of the Futral F13 cam. I'm looking for the "advertised" and at .050 as well as the lift. Does anyone know what kind of lobes they are on(XE, XE-R or some other brand)and what are driveability characteristics. Just thinking of upgrading from my comp cams 228/230 .571/.573 112(made 425 on a Z06 with just a cam and headers). Thanks!
08-13-2004, 09:46 AM
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When u say it's not even in the same ball park as XE-R lobes is that good or bad? I currently run a cam with XE lobes so i'm not 100% sure what the difference is between the XE and the XE-R lobe other than comp saying that this is an all out race lobe. I'm just looking for a cam to utilize my new AS 2.5 5.3 heads without killing driveability which i have heard is very good with the F13.
08-13-2004, 10:05 AM
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Originally Posted by Vortech
When u say it's not even in the same ball park as XE-R lobes is that good or bad? I currently run a cam with XE lobes so i'm not 100% sure what the difference is between the XE and the XE-R lobe other than comp saying that this is an all out race lobe. I'm just looking for a cam to utilize my new AS 2.5 5.3 heads without killing driveability which i have heard is very good with the F13.
08-13-2004, 01:16 PM
#7
Originally Posted by J2KSS
Damian will that cam have enough clearance with my 1.5s and .005 cleanup. I know my 1.5s are the ones with intake valve set a lower in the chamber.
Futral works with Cam Motion to grind the cams not the cook book Comp Lobes. The FMS cams drive great
The Comp XE-R is more aggressive with quicker ramp rates than the XEs
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08-13-2004, 01:30 PM
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So I'm getting the feeling u guys don't like the comp XE-R lobes-is it because they are too hard on the valvetrain? I thought the Xe-R lobes are badass?
08-13-2004, 01:39 PM
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Originally Posted by 93Polo
It should clear but as always with a larger cam check to be sure.
Futral works with Cam Motion to grind the cams not the cook book Comp Lobes. The FMS cams drive great
The Comp XE-R is more aggressive with quicker ramp rates than the XEs
Futral works with Cam Motion to grind the cams not the cook book Comp Lobes. The FMS cams drive great
The Comp XE-R is more aggressive with quicker ramp rates than the XEs
What are the .200 numbers on a Futral 228/230 112LSA cam like yours?
08-14-2004, 08:30 AM
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A F13 with an Intake Center Line (ICL) of 110* might fit fine in milled heads where one with an ICL of 108* will not. In my case a F13 with a 108* ICL more than likely will not fit with my heads being milled .015. I will have to go with an ICL of 111*.
Josh (Damian) what is the ICL of your Futral cam? I think I read in a post it was 114* which will give you a lot more P to V clearance than a 108* ICL.
John
Josh (Damian) what is the ICL of your Futral cam? I think I read in a post it was 114* which will give you a lot more P to V clearance than a 108* ICL.
John
08-14-2004, 10:11 AM
#18
Icon are your pistons notched and how far are your heads milled?Damian what is the LSA/ICL of your F13 and how much milling was done to your heads?
I have a milled (.030) head and 2.02/1.57 valves but I dis have the pistons notched in case I needed alittle room.Currently I run a 224-224 580-580 113+2 w/no problems.I was thinking of getting the F13 on a 112+2?
I have a milled (.030) head and 2.02/1.57 valves but I dis have the pistons notched in case I needed alittle room.Currently I run a 224-224 580-580 113+2 w/no problems.I was thinking of getting the F13 on a 112+2?
Last edited by JS; 08-14-2004 at 10:18 AM.
08-14-2004, 01:24 PM
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The degrees of advance in a cam grind are there for a reason. Personally I wouldn't mess with a cam ICL as it will perform totaly different than the original grind.
A 112+4 has 4 degees advance in the grind to make the cam peak a little earlier in the powerband in order not to loose so much torq down low. A 111 ICL FM13 will be a dog on low torq and driveability will suffer.
But on the other hand, if you want to mess with the advance, all you have to do is get an adjustable timing chain and retard the FM13 4 degrees at the crank and voila.
Don't mess with a designed grind
A 112+4 has 4 degees advance in the grind to make the cam peak a little earlier in the powerband in order not to loose so much torq down low. A 111 ICL FM13 will be a dog on low torq and driveability will suffer.
But on the other hand, if you want to mess with the advance, all you have to do is get an adjustable timing chain and retard the FM13 4 degrees at the crank and voila.
Don't mess with a designed grind
