any real world difference between these 2 cams?
any real world difference between these 2 cams? Hi guys, quick question...
Finishing up my LS3 build & deciding between 2 cams. One is off the shelf & the other is custom ground but almost identical. If in real world street driving & a twice a year drag strip pass (read NOT a max effort dyno queen!) I won't be able to tell a difference between the 2 cams I am just going with the off the shelf cam to save time & $$.
Cam 1 = 225/238 .612/.585 113+3 (OL 5.5*) off the shelf cam
Cam 2 = 226/240 .620/.590 114+4 (OL 5*) custom cam
Goal is nice broad power under the curve, nice lope but nothing to shake your teeth loose. Good street manners, vacuum to run brakes & not a lot of exhaust fumes (no cats).The car is 2nd gen fbody swap, ~3700 lbs, 4l65e, vigilante 3200, 3.42 posi, 1 7/8" long tubes, 2.5" exhaust, x pipe, CAI, stock intake with stock LS3 heads milled to ~ 11:1+ CR.
My guess is the off the shelf cam 1 will be just fine for what I want to do & I really wont be able to tell the difference between them or give up any noticeable power between them but I wanted to confirm with some of the seasoned builders here. Thanks & LMK
Finishing up my LS3 build & deciding between 2 cams. One is off the shelf & the other is custom ground but almost identical. If in real world street driving & a twice a year drag strip pass (read NOT a max effort dyno queen!) I won't be able to tell a difference between the 2 cams I am just going with the off the shelf cam to save time & $$.
Cam 1 = 225/238 .612/.585 113+3 (OL 5.5*) off the shelf cam
Cam 2 = 226/240 .620/.590 114+4 (OL 5*) custom cam
Goal is nice broad power under the curve, nice lope but nothing to shake your teeth loose. Good street manners, vacuum to run brakes & not a lot of exhaust fumes (no cats).The car is 2nd gen fbody swap, ~3700 lbs, 4l65e, vigilante 3200, 3.42 posi, 1 7/8" long tubes, 2.5" exhaust, x pipe, CAI, stock intake with stock LS3 heads milled to ~ 11:1+ CR.
My guess is the off the shelf cam 1 will be just fine for what I want to do & I really wont be able to tell the difference between them or give up any noticeable power between them but I wanted to confirm with some of the seasoned builders here. Thanks & LMK
Youre gonna get an exhaust smell with nearly any overlap as well as any smaller negative overlap up to roughly 3 or so. Less timing at idle down low and cruise helps but then acts like a turd. Id go a bit smaller honestly. Keep the 113 lsa but run a 224/228 or 224/232 max. Itll still do what you want as far as power but drive a bit easier and have less fumes and tuning work arounds.
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Verdad Gallardo And less overlap gonna mean less power at the top of the RPM range.
He can go smaller than the cams he looked at, but at 11:1 static compression, the OP's proposed cams are more optimal than the smaller cams for power and for racing.....while still being relatively mild and VERY streetable for daily driving.
KW