This is topic Custom or xe274hr - for this setup? in forum Tech Talk at Northern California Ford Owners  .


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Posted by Beasty5.0 (Member # 2935) on :
 
-Compression will be around 10.5
-Eagle 4340 Crank 3.25" stroke
-Eagle 4340 H Beam Rod 5.5"
-JE/SRP Forged Flat Top Pistons
-Edelbrock RPM Heads 2.02- Stage 3 porting from TEA
-Holley System II Intake
-1.6 FMS pedestal mount
-75MM BBK Throttle Body w/spacer
-Accel 30 lbs injectors
-C&L matching MAF
-Exhaust consist of FMS ceramic shorty headers and 2 1/2 BBK Xpipe with high flow cats
-All smog equipment hooked up, may also hook-up stock h-pipe for insurance

I wanted to get a custom cam, but I talked with a well known cam designer and he came up with a cam on the bases that I wanted power from idle to 6000, "street manners", and pass smog, but it seems to small for my setup [Confused]

270/273 adv, 215/224 at .050, 133/141 at .200", .333/.316 lobe (.533/.506 with 1.6:1)

what you guys think custom or the xe274hr?
 
Posted by FasterDamnit (Member # 442) on :
 
Do you want the car to pass smog out the pipes w/ the cam? XE274 prolly will not pass, pretty good overlap.
 
Posted by The Nick (Member # 2244) on :
 
I think the TFS Stage 2 cam is pretty much the same grind as the XE274, but its cheaper.
 
Posted by 2stangs69-91 (Member # 1951) on :
 
my XE274 passed the snifer test. It was on the high side but it made it.
 
Posted by uncle bill (Member # 3953) on :
 
the operating range for the 274 cam is 2200-6200 rpms. that sounds like a pretty stout motor, if you want it to run off idle and pass smog you're going to have give up some of the cam. i basically run the same motor with a ex282 cam in a 65 coupe smog exempt
 
Posted by Beasty5.0 (Member # 2935) on :
 
Yeah I want to pass smog out the pipes. What cam would you guys recommend that won't rob as much, but still pass smog?
 
Posted by FasterDamnit (Member # 442) on :
 
quote:
Originally posted by 2stangs69-91:
my XE274 passed the snifer test. It was on the high side but it made it.
What kind of cats? Single or duals? Old or new?
Also- what compression?

[ June 03, 2005, 08:59 AM: Message edited by: FasterDamnit ]
 
Posted by 2stangs69-91 (Member # 1951) on :
 
it passed with my Factory daul cats in place. Thay have around 120,000 on them (but used very little the last 4 years LOL) My 331 is running flat top pistons with around 64 cc heads. I believe that puts me around 10 to 1. I don't have to smog on a Dyno up here yet but it was a legit smog inspection. It was on the high side but I think with new cats it would have passed even easier.
 
Posted by Beasty5.0 (Member # 2935) on :
 
Anymore suggestions?
 
Posted by uncle bill (Member # 3953) on :
 
take a look at some of the ford motorsports 303 cams
 




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