is the comp cam 268XFI to big for daily driving...i have a L98....im looing for a cam with a noticable lobe for my daily driver along with performance....thx.....ohh and plz give recommendations for cams...ive done searches but havent found a whole lot on daily driver cams

 

i have a bigger cam, the 276 cam, and it was my daily driver for a bit. I also have a T-56 which makes a big difference. The key though is in the tune, which gets harder to nail down the bigger you get.

 

i was j/w cuz i saw the lift on it was like .570 ...so i didnt know if thats like too big or not....but if u had a bigger cam than that maybe ill go with the 268xfi

 

Well that cam is bigger than mine lift-wise, but not in duration nor LSA, so yours should be a lot easier to tune. Your gonna need some pretty hefty springs with that high lift.

 

i think that lift is with 1.6 ratio rockers so just run 1.5's and be like at .540 lift

 

I have that exact same cam sitting in my gargage. It is going into my engine. However like Ken said you need the heads to support the high lift. I'm also running 1.6 roller rockers.

I'm currently running a ZZ9 style cam and the advertised seat to seat is around 282 degrees and this is with 212 degrees at .50 lift. It idles quite well and by the way and is on a 112 degree lobe centers.

The XFI268-HR13 is 268 degrees advertised duration with a 218 degree duration on the intake at .050 and 113 lobe center. To me this is a "big" cam in a small package. It should idle quite nicely especially with the 113 lobe center and like Ken said with the proper tune.

This cam also has a smaller seat to seat duration than the GM LT4 Hot Cam and Comp Cams own EFI268-112 cam. This cam is of the latest design and was designed for a fuel injected motor. I like the looks of it.

I'm having a 4-bolt short block built up to change out the one I have and of course this cam will be in it. I should be able to have a report after the first of the year. Hoping to be well past the 304RWHP and using my TPI setup. Love that TPI. Shooting for over 400HP at the crank. Allen

 

i do have the heads to support it...im running alluminum trickflow heads....springs on it are supposed to handle a .600 lift....thx for the info guys

 

Go for it then

 

Dear jeebus! Does that cam really cost $350??

 

No. I bought mine at www.summitracing.com
Summit part number is CCA-08-466-8. Hope this helps.

 

My cam is bigger than that an it passed California Smog at a Test Only Station. Look at my sig below

 

Ahem, cough cough.

 

what size injectors will i need...i was looking at fiveomotorsports at the bosch blue tops 24lbs an hour...cuz im sure ill need an injector up grade

 

24 pounders will most likely cover it. If you have not already get an adjustable fuel pressure regulator.

 

I picked the comp 268 xfi,Should be done sometime this month.heres The set up
Vortec 350 4 bolt main stock bore,balenced.
9.5.1 pistons
comp cam 268 XFI Roller
comp magnum roller lifters
L98 Iron heads 64cc screw in studs
Comp 1.52 roller rockers
Comp beehive springs
Comp push rods
comp double roller timing chaing
Holley Stealth Ram
Tpis 58mm throlle body
24 lb Injectors
Harris stage 2 chip
flowtech headers and y pipe
borla cat back (no cats)

I have no idea how its gona run,or the numbers it will make. Im curiouse about how the l98 head will perform.any input is greatly appreciated thx.

 

I'd like to know how your combo works out for you my build is similar.

 

If your asking me Ill be sure to make a video,its done just needs installed,itll be a few weeks,I wont get it back till the snow clears.

 

I may have my parts ordered by then I'm running alum l98 heads gasket matched comp hydraulic flat tappet xfi260 cam the 268 idle is lil rough for me comp 1.6 rockers block is bored .60 over flat top pistons had the crank turned over gonna get tpi ported and exhaust will be hedman shorty headers true dual 2.5 haven't picked mufflers yet and 24injectors, and planning on getting a custom tuned chip.