: Just wondering if this would be good in a 327
69musclecar Aug 4th, 03, 07:36 PM Trick Flow 23 degree heads (Intake Valve- 2.020, exhaust Valves-1.600)
750 cfm Edelbrock carb
10.5 compression
Lunati cam 290/300 (part #07102)
Cam specs (@.050 Lift):
Int Lift- .520
Exh Lift- .540
Lobe Center- 106
Int Duration- 240
Exh Duration- 250
[ 08-04-2003, 11:10 PM: Message edited by: 69musclecar ]
pdq67 Aug 5th, 03, 01:02 AM Should be a high-winding dandy if it is a solid cam, imho!
I didn't check Lunati's to see.
pdq67
fast Aug 5th, 03, 05:54 AM I'm not entirely happy with mine
might be happier w/ a manual trans (T56?) or a bigger stall (only a rated 2500 w/ 4.10s out back)
333", trick flow twisted wedge, perf rpm
~10.25:1 comp, comp hyd 236 @ .050, .523 lift both sides
it's kinda peaky, and has very little low end
but wind it up and hold on
69musclecar Aug 5th, 03, 07:16 AM hydralic cam I believe.
If I were to build it, it would be backed by a 4-speed manual w/4.11 gears.
pdq67 Aug 7th, 03, 07:17 AM If it is a hy- cam you won't really be able to take advantage of the 327's great rpm potential b/c of possible lifter pump-up and subsequent valve float...
Been there, done that!! But only above 6500 rpm if the rockers are lashed right! (I.e., lifters pre-loaded, that's all).
69musclecar Aug 7th, 03, 09:28 AM ah so go with a solid cam gotcha
still working out the details. (Like to plan before I get the car)
fast Aug 10th, 03, 02:36 AM AFR hydra-rev kit
Eric68 Aug 10th, 03, 02:48 AM Cam is too big in a 327 IMO unless it is a strip only car with a big stall & gears (like 5000 stall and 4.56 gears) and if it's strip only you might as well put some more compression to it and run race fuel. A 327 will be short on TQ to begin with because of its short stroke, it will be even lazier with a big cam.
I personally would look at a cam with a wider LSA and shorter duration to help low end. A friend of mine runs the Comp 282s (282 advertised, 236* @ 050, .495 lift, 110 LSA) in his 10.3:1 327 and it is a real nice street/strip cam. He needs plenty of stall and gear with that cam and it is a bunch smaller than that Lunati grind.
oger Aug 10th, 03, 06:54 AM I agree, too much cam too much carb. A 327 is not a 383 and will not act at all the same. The heads may even be a little big. I used a set of twisted wedge trick flows the middle dual energy cam and even with 3.08s it runs just fine. If you are going at all large on any part cam etc. you must put so much gear in it you won't be happy.
CamaroNOTcamero Aug 10th, 03, 08:43 AM install switch on the dash:
Press For Race
O
O
Press For Street
;)
Eric68 Aug 10th, 03, 11:46 AM Originally posted by CamaroNOTcamero:
install switch on the dash:
Press For Race
O
O
Press For Street
;) With variable valve timing in some new engines, your idea is closer to reality than you may think. Wouldn't it be cool if one day you could have (and maybe they do in a lab somewhere) totally software driven valve timing? Like hydraulically operated valves . . .
You could computer control valve timing for max TQ down low then slowly add duration and tighten LSA through the midrange, then continue to add duration for max HP to boot. Simple inputs from a MAF and TPS would determine what kind of AF map and valve timing program the engine would run . . .
I know they already have variable valve timing on some inport engines but I believe it is done via mechanical means - some kind of a fancy rocker arm setup if I remember.
Ahhh maybe one day . . .
CamaroNOTcamero Aug 10th, 03, 01:46 PM Eric,
I believe F1 cars use CO2 operated valves.
It's definetly not far from coming to the sportsmen racers and hot street cars.
Give it 10 years.
fast Aug 11th, 03, 02:16 AM Originally posted by Eric68:
Cam is too big in a 327 IMO unless it is a strip only car with a big stall & gears . . . basically what I was trying to say
JIM68 Aug 11th, 03, 06:50 AM Originally posted by Eric68:
A friend of mine runs the Comp 282s (282 advertised, 236* @ 050, .495 lift, 110 LSA) in his 10.3:1 327 and it is a real nice street/strip cam. He needs plenty of stall and gear with that cam and it is a bunch smaller than that Lunati grind. hey Eric, do you know what trans and gears yer friend has? I was thinking something like 3.55's with my M-20 and 26" tires.
Eric68 Aug 13th, 03, 02:20 PM Actually, he is a little "over geared" and "over-stalled" for the cam IMO - he runs a 4.11 gear set with a 4000 stall TH350.
Its hard to say how less gear would act in a 327 with a manual --- 3.55 should be OK, 3.73 would be better IMO. 3.42 or less, I dunno . . .
Novaguy73 Aug 14th, 03, 12:45 PM Well heres my thoughts. The 327 is never going to make good torque no matter what you do with it. If your going to build a 327 wich i think is cool, put a solid cam, gear it and run a good 5 speed and use it for what its good for, RPM and horsepower. That cam isnt really that terribly big and with a 3.27 first gear in a 5 speed with a 1:1 5th and like a 3.73 rear gear you could have a good around town car that would be very highway capable at 65 mph. And you can comfortably wind the **** out of it smile.gif Good luck
| |