XE 224 Cam
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XE 224 Cam I have the cam in my sig and I am pretty sure it uses the XE lobes. The number is 3715r.
Now I have been reading lately and have noticed that XE lobes are one of the slowest ramp rates and make less power, idle worse and have worse throttle response. I did not know about this before I got my cam and was wondering how much power difference their would be between my cam and a tr224 or a 224 .581 comp with XE-R.
This has my kind of upset thinking my car will be a dog...
Now I have been reading lately and have noticed that XE lobes are one of the slowest ramp rates and make less power, idle worse and have worse throttle response. I did not know about this before I got my cam and was wondering how much power difference their would be between my cam and a tr224 or a 224 .581 comp with XE-R.
This has my kind of upset thinking my car will be a dog...
That cam will make plenty of power. Although there are "better" grinds out there that share a 224 @ .050 duration- I think it will be 10 hp or less difference, not enough to worry about.
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Is it going to idle worse and have less driveability?
But one plus is that it will be eaiser on the springs correct?
They are good for .600 lift and I have titanium retainers...so with only .563 and the softer ramp rate...I wont have to worry about them for a while...correct?
But one plus is that it will be eaiser on the springs correct?
They are good for .600 lift and I have titanium retainers...so with only .563 and the softer ramp rate...I wont have to worry about them for a while...correct?
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From: BFE
With all aftermarket cams, you'll have to check and measure seat pressures after 15K. call it "maintenance". i
It doesn't mean you'll change them, but that will let you know how the valvetrain is holding up.
As far as driveability and idle, you'll need a good tune, then you'll be the judge
It doesn't mean you'll change them, but that will let you know how the valvetrain is holding up.
As far as driveability and idle, you'll need a good tune, then you'll be the judge
I'll bet you loved the way your car ran before you read those posts, especially with the "She's Mean" in your sig. If you like the way your car runs, don't worry about ramp rate. It's easy for us to start second guessing ourselves with all of the information (mostly conflicting) on the forums.
Even if everything you say is true about XE vs XER, it certainly isn't worth opening up the engine for that change. Maybe next time your ready to jump back into the insides, you can make another cam choice. Enjoy your cam and drive the heck out of it.
Even if everything you say is true about XE vs XER, it certainly isn't worth opening up the engine for that change. Maybe next time your ready to jump back into the insides, you can make another cam choice. Enjoy your cam and drive the heck out of it.
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Ultra, I think you may be a little confused, Comp does not make a 224/224 .563/.563 112 lsa, that is a Thunder Racing grind. That grind is right between an XE and XER lobe. The closest grind that Comp makes is 222/224 .566/.568 112lsa ona XE lobe. The difference between these two cams is most likely less than 7 or 8 hp.
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Verdad Gallardo TECH Senior Member
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From: BFE
It is a TR design on a Comp grind. 
Take your cam card and find the .006 adv lift and the .050 lift. substract the 2 and you'll find it is 51.
XE is 53 and XE-R is 49 so yeap the lobes are right in between.
Basically with the effect of XE-R but a little more mercifull on the valvetrain.
Take your cam card and find the .006 adv lift and the .050 lift. substract the 2 and you'll find it is 51.
XE is 53 and XE-R is 49 so yeap the lobes are right in between.
Basically with the effect of XE-R but a little more mercifull on the valvetrain.
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From: Hanover, Michigan
I have the cam card and I know that comp does not make this grind. The person I bought it from must have had it custom ground because it clearly states .563 224 112...I am POSITIVE.It is also written on the back of the cam.
And yes..I love the way it ran before the cam...I was right in the mix with an 03 cobra before the cam...I am going to have a little extra for him this summer when im done, being I will be about a half second faster than I was before when im done with everything... "your car sounds different"... ME... " Its just my true duals!"...lol
Here is basically everything on the cam card
First of all the grind # is ls1 3715r /3715r hr112...no advance ground in
Gross lift .563 .563
duration at .006 tappet lift 277 277
Duration at .050 intake 224 exhaust 224
Lobe lift .3310 .3310
Lobe separation 112.0
Well the advertised duration at .006 is 277 and .050 is 224...so it comes out as a 53...damn
So whats the deal here...custom xe grind? Also...it has no advance ground in...should I worry about this...whats the deal with that? do I have to degree it?
And yes..I love the way it ran before the cam...I was right in the mix with an 03 cobra before the cam...I am going to have a little extra for him this summer when im done, being I will be about a half second faster than I was before when im done with everything... "your car sounds different"... ME... " Its just my true duals!"...lol
Here is basically everything on the cam card
First of all the grind # is ls1 3715r /3715r hr112...no advance ground in
Gross lift .563 .563
duration at .006 tappet lift 277 277
Duration at .050 intake 224 exhaust 224
Lobe lift .3310 .3310
Lobe separation 112.0
Well the advertised duration at .006 is 277 and .050 is 224...so it comes out as a 53...damn
So whats the deal here...custom xe grind? Also...it has no advance ground in...should I worry about this...whats the deal with that? do I have to degree it?
Last edited by UltraZLS1; Jan 2, 2005 at 08:09 PM.
Ultra, for starters Comp will grind anything you ask for within reason. The lobe you have is an agressive XE. I'm surprised there was not more info on the cam card. I just got a TR cam and I think two lobes had been put on a cam doctor, really a lot of info.
looks like my came except mines on 114 LSA lol
I got the 224/224 .563 .563 114 cam from ls1speed 2 years ago. Loved it ever since...
as far as power? Dunno, but mines run pretty well with it and dynoed pretty good for the setup on tea 1.5 heads.
You are just worried you made the wrong choice now.. stop thinking about all the info you are reading Just be happy with whatcha got now lol
i still have my 224 and will probably have it for a long time lol
I got the 224/224 .563 .563 114 cam from ls1speed 2 years ago. Loved it ever since...
as far as power? Dunno, but mines run pretty well with it and dynoed pretty good for the setup on tea 1.5 heads.
You are just worried you made the wrong choice now.. stop thinking about all the info you are reading
Just be happy with whatcha got now loli still have my 224 and will probably have it for a long time lol
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One thing though...is it ok that I just installed the cam "straight up". On one post I thought I saw someone say you needed to do special degreeing on the no advance cams?
I knew it was the older cam from ls1speed, it even says that is where it is from on the box. So it probably isnt a custom grind...just they dont make it anymore.
What did you put down before your heads with that cam? And I am assuming you had full bolt-ons and exhaust? Whatever you got I will add around 10 hp becuase I have a manual and use it as a baseline.
I knew it was the older cam from ls1speed, it even says that is where it is from on the box. So it probably isnt a custom grind...just they dont make it anymore.
What did you put down before your heads with that cam? And I am assuming you had full bolt-ons and exhaust? Whatever you got I will add around 10 hp becuase I have a manual and use it as a baseline.
Ultra, what you have to do is get on a dyno with a wide band AFR and get your car tuned, it will make a big difference power wise.I just had mine done and find out that the timing cover has to come off because my timing has to be retarded by 2* because my RWHP is peaking at 57-5800 instead of 62-6300.
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I guess I should stop nit-picking. But if this bitch doesnt put down at least 370-380 to the wheels after the rest of my mods and the tune im gonna be pissed. Even though dyno numbers are just numbers...the track is what matters. I want some piece of mind...and bragging rights
the numbers I got with the A4 trans locked was 399.9 hp but that is with heads also.
But yes comp did make that cam with 563 lift. I guess they dont grind that anymore but I know it was a option about 2 years ago from ls1speed that comp did.
I dont have any cam only numbers, but it shoulda been in the 370range for mine. Another friend in his A4 dynoed 375 with his TR224 and he went 11.6@116 or so, so the ET's were pretty dead on and we had almost the exact same mods down to the stall. 2 other guys pulled 390's with the 224's in there 02 cars cam only. You should definitly be 380's or better cam only with that cam and a good tune Sucks that us autos need heads to dyno what ya'll do cam only lol. BTW, dont worry to much about dyno numbers. Dynos seem to vary.. as long as you dail in your A/F your car should scream with that cam
But yes comp did make that cam with 563 lift. I guess they dont grind that anymore but I know it was a option about 2 years ago from ls1speed that comp did.
I dont have any cam only numbers, but it shoulda been in the 370range for mine. Another friend in his A4 dynoed 375 with his TR224 and he went 11.6@116 or so, so the ET's were pretty dead on and we had almost the exact same mods down to the stall. 2 other guys pulled 390's with the 224's in there 02 cars cam only. You should definitly be 380's or better cam only with that cam and a good tune
Sucks that us autos need heads to dyno what ya'll do cam only lol. BTW, dont worry to much about dyno numbers. Dynos seem to vary.. as long as you dail in your A/F your car should scream with that cam 
