Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
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I think in a 305 it would be pretty lumpy. I have that cam in my girlfriends 350, and I had one in my firebirds previous 350, and it idles fairly smooth, with a little rump to it, in a 305 it would probably idle a little bit lumpier.
Chris
__________________ 88 GT Mustang, full cobra body conversion.
302 with some "goodies"
2007 Supercharged SS Cobalt, 2.7" blower pulley, some other stuff.....
The XE268 is not good for a 305, way too much lift and duration. Take it back and get an XE256. That is as big as you want to go, even in a well built 305.
Originally posted by Mark A Shields How will it idle in my 350. I just ordered the cam tonite.
A lot better because of those 45 extra cubic inches. I don't know if you'll like it, though. An XE262 might give you a more enjoyable driver, but if you want a lumpy idle I suppose the 268 will provide more of that.
__________________
1986 CAMARO SPORT COUPÉ
5.0 Liter 305 hp
Hooker 2460 Shorty headers, mandrel bent 3" exhaust
Walker Quiet-Flow muffler and dual 2 1/2" pipes
Edelbrock Performer intake with 1406 600 cfm carburetor
Ported and polished 305 "601" heads à la F-Bird'88
305 HO dual snorkle aircleaner with K&N filter
Crane PowerMax 260 camshaft (.427 - .454) and lifters
Proform HEI coil and module, MSD cap, rotor and 8.5 mm Superconductors
700R4 with TransGo Stage2 shift kit and Derale 12000 lb. gvw trans cooler
3.42 gears, KYB Gas-A-Justs and Z-28 front and rear anti-sway bars
Goodyear Eagle HP (200km/h) 225x60R15s on 15x7 styled aluminum slots
T-Tops, A/C, tilt, cruise, variable wipers, power steering, brakes, windows, locks and rear hatch
Alpine CDA-9827 4 channel AM/FM CD-MP3 receiver with Pioneer and Rockford-Fosgate speakers. _ _ _ _ _ _ _ _ _ _ _ _ _____________ _ _ _ _ _ _ _ _ _ _ _ _ Yea verily, and he sore smote the smog heathens from his smallblock Chevrolet, even from the air pump unto the converter.... Book of Todd 3:05 Regardez mon coupé formidable ici!!! http://www.thirdgen.org/rides/index....ew&rideid=8338
Originally posted by Sitting Bull The XE268 is not good for a 305, way too much lift and duration. Take it back and get an XE256. That is as big as you want to go, even in a well built 305.
Take some good advice from myself and others and send that back. Yea, you will sound cool but you will wish you had it out of there in no time after some city driving. You did not list your mods,induction,gears or intended useage but the XE256 mentioned would be a good all around choice for a 305.
Maybe I should have mentioned that I drive the car maybe 2 times a month. It will have ported and polished heads (vortec heads will be on later), just under 9.5:1 compression, 600 Double pumper Holley, through a T5 trans, and 9" with 3.9 gears.
Yeah my IROC is no longer a daily driver, so it won't be driven during the fall/spring semesters this year. It gets driven an avg of 5 miles a week right now I would say. The more lope to it the better, plus that gear drive will sound mean, it's a quiet one, but still.
Originally posted by Mark A Shields Yeah my IROC is no longer a daily driver, so it won't be driven during the fall/spring semesters this year. It gets driven an avg of 5 miles a week right now I would say. The more lope to it the better, plus that gear drive will sound mean, it's a quiet one, but still.
F-Bird'88 has found that gear drives actually DECREASE your hp
His buddy's engine lost somewhere around 40 hp, if I remember correctly
F-Bird'88 has found that gear drives actually DECREASE your hp
His buddy's engine lost somewhere around 40 hp, if I remember correctly
Are you serious, maybe I should ask this on the board? 40hp is a crap load. I'll be putting the cam in early next week, but still need to order the locks/retainers for the springs. Doh.
I think that cam is a little big for stock heads, but since you have a carb, it may alright. That cam in a 305 makes me think GOOD flowing heads and a single plane.
Anyways in my 305 TPI (siamesed base) stock heads
i have the crane 2032 214/220 ~.5" lift w/ 1.6 RR
Idle sounds good, much better than stock, some loss of power below 1500 rpm, pulls hard and runs fastest shifting as high as i can right now at 5500 rev limited. I drive this car everyday, so it's still completely streetable, however my cam is a lot smaller than what you're talking about.
F-Bird'88 has found that gear drives actually DECREASE your hp
His buddy's engine lost somewhere around 40 hp, if I remember correctly
I'll laugh for days with that one:sillylol:
Mark: I was considering putting in a XE268 a while back, but decided Vortec's weren't worth it and chose the XE274 to match up to a set of AFR 195's. I guy at my job has an 84 Blazer with that XE268 cam, stock heads, Performer RPM intake and headers and it runs strong and sounds mean. Idles nice at 800rpm with just right amount of lope to warn other. No problems with power brakes or HVAC. And don't believe that 40HP loss from a gear drive either Something else wasn't right there.
These cams don't behave like the older grinds so don't say their too big until you have experience with them.
Something else wasn't right there.
