mchdg86

iTrader: (3)

I had a TR 224 in my previous car that I sold and loved the way it performed and drove. I would like to go with the same size cam but was wondering if the XFI lobes would make a little more power or go with the very prooven TR 224 cam again.

Ryan L

Depending on the heads, there's no doubt the XFI will make more power since the lift is greater.

greatskiiiier

iTrader: (10)

not necessarily, bigger cam doesn't = more power... sorry i cant help more

mchdg86

iTrader: (3)

Those are some very good numbers for a cam that size with stock heads. I was considering the same 224/230 cam that you have since I am gonna go with spray also. What LSA do you have it on, also would you happen to know the ICL of the cam also?

Ryan L

224/230 .609/.604 113+2 is what I'm running. The extra lift and 6 degrees on the exhaust helped alot.

There's been several threads on here of ~430-440rwhp/~390-410rwtq using stock 243 heads (low numbers are for 5.7 while the higher end are the 6.0). I'm curious if the TR224 can achieve the same.

greatskiiiier

iTrader: (10)

^ are your numbers corrected or uncorrected?

SOMbitch

iTrader: (8)

This thread is interesting because none of the big cam names have responded

Ryan L

The 'new' XFI lobes haven't caught a whole lot, so I wouldn't expect much of a response from the typical XER crowd.

zx9rgreen

iTrader: (18)

What was your reason for going with the larger split?

I installed a 224/236 XFI cam in my LQ4. I ahven't had it on the road yet to see the difference in that and my old 228 cam.

There isn't much love for the XFI lobes here is there.

Ryan L

Patrick G spec'ed it for me based on my needs, so I rolled with it. Patrick G has spec'ed a ton of XFI/XFI cams while Predator is doing alot of XFI/XER. They are two of the most knowledgable cam people on here, so I'm shocked that more vendors haven't jumped on the bandwagon.

HTX

iTrader: (1)

an XFI 224 has the potential to make much more power than the tr224.

Its all based on the setup of course.

XtraCajunSS

iTrader: (2)

I've cut many custom grinds based on XFI lobes and have had very good results with them. They are more stable than XE-R lobes WITH more lift... a win-win in my book.

Thanks,
Shane

greatskiiiier

iTrader: (10)

^ so the TR224 uses XFI lobes?

oange ss

iTrader: (50)

no, they're proprietary Thunder Racing lobes

Phil'sC5vette

iTrader: (4)

I wouldnt changed just on lobe design. Id go bigger
I put down 370 RWHP and 360 RWTQ with all the bolt ons and the TR224

mchdg86

iTrader: (3)

I have decided to go with the 224/230 that Ryan L has but I don't want to rev it as high. From the graph in his video it looks like it pulls to around 6800 RPMs and I would like to shift no later than 6500 since I will have either a 99 or 00 LS1 car. So what LSA and ICL should I have it ground on to meet my goals?

XtraCajunSS

iTrader: (2)

You are correct sir... They are our own lobe. I was just commenting that the XFI lobes are great lobes.

Thanks,
Shane

Nitroused383

iTrader: (10)

110 Lsa + 0 advance would peak around 6300 rpm and have awesome low end torque. Or you could do a 111 + 1.

ballerchris510

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??

1989GTA

I bet there are quite a few people with custom cams running XFI lobes but the don't know it.