224 on XFI lobes vs TR224
02-06-2009, 02:46 PM
#21
Im in your same boat and i was looking at the el torro wich is a 230/230 612 592 111lsa which is xfi/xer lobe... but instead i was wonderin how maybe a 230/232 612 595 111lsa xfi/xer would perform and if gains against the 230/230.... or maybe SOMbitch's cam 230/234 612 598 on a 111lsa?? what would the extra exhaust duration do compared to the 230/230??
Since I am running cats I needed a little more on the exhaust side. It would help if you ever plan to spray too. My 111LSA is advanced 2* BTW.
02-07-2009, 09:47 AM
#23
On The Tree
Join Date: Apr 2006
Posts: 197
Likes: 0
Received 0 Likes
on
0 Posts
Just curious if an xer cam is has 600 lift and an xfi cam has 600 lift all else being equal how does the xfi have more lift?
02-07-2009, 10:03 AM
#24
12 Second Club
iTrader: (4)
Join Date: Sep 2005
Location: Fort Myers, FL
Posts: 589
Likes: 0
Received 0 Likes
on
0 Posts
That's not how it works. Basically, if two cams are offered at the same duration we'll use 224 for now, the 224 xfi cam will have a higher lift than the 224 xer cam.
02-07-2009, 10:27 AM
#25
Teching In
Join Date: Oct 2008
Location: The 717
Posts: 40
Likes: 0
Received 0 Likes
on
0 Posts
not a cam expert by any means but I believe it has something to do with the xfi lobes having a greater ramp rate than xer lobes, hence the higher lift at the same duration.
02-07-2009, 12:28 PM
#26
That cam would be a good lower rpm torque cam but it would be really peaky and not carry past peak very well would make peak hp around 6000rpm. I would set it up on a 111 LSA 110 icl. This would center the overlap over TDC and would make peak hp around 6200-6300 rpm (LS6 intake ideal peak) and it would rev well past peak since the overlap is centered. The 108 icl would have a IVC of 40 degrees and +2 of intake biased overlap, this would make it a real peaky cam that falls off, probably good for a truck though lots of low end torque.
Now if I could figure out what to do with my Dart 225's.
02-07-2009, 03:27 PM
#28
Launching!
Join Date: Feb 2007
Posts: 229
Likes: 0
Received 0 Likes
on
0 Posts
Yeah, the 224/230 xfi tends to be 'peaky', but the area under the curve is solid. I made peak power ~6300 rpm with LS6 heads, which sounds high, but HP was within 5 from 6000-6600 with no real drop off.
02-07-2009, 04:05 PM
#29
12 Second Club
iTrader: (18)
Join Date: Apr 2006
Location: Sarasota & Lee County
Posts: 627
Likes: 0
Received 0 Likes
on
0 Posts
as far as a great street cam, I love the 224/230 111+1 xfi cam. I made 387 with stock 98 heads, ls6 intake and the dyno pulls being stopped at 5800 rpms do to the driveshaft popping out and I expect this cam to peak at around 6300 and pull out to 6700 or so. I have no doubt that with a 243 head or even porting my head would net me a substancial gain as well as finishing the tune. My power at 3k was right around 200rwhp/370rwtq
02-07-2009, 05:14 PM
#30
On The Tree
Join Date: Jan 2007
Posts: 178
Likes: 0
Received 0 Likes
on
0 Posts
