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Topic: Lumpy Sounding Turbo Cam?? (Read 2810 times)
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badassmav
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Is there such a thing, I miss my lumpy idle that would scare off punk kids. I want a cam that sounds good and still work good with boost, am I asking for the impossible. Right now mine specs out at: .226 @.050 .512 lift and 114l/s & l/c. My n/a cam is .270 @.050 and .600 with a 104 center and 106 l/s and it's gnarly sounding.
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"HE WHO HESITATES GETS SMOKED" 10.42 @ 132 w/1.49 60ft so far
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SNYPER
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Jesse its the tight LS that gives it the sound you are looking for, not so much for a turbo application.
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BOOGEYMAN CREATIONS from chassis/cage work to paint and restos.
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Millhouse
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Is there such a thing, I miss my lumpy idle that would scare off punk kids. I want a cam that sounds good and still work good with boost, am I asking for the impossible. Right now mine specs out at: .226 @.050 .512 lift and 114l/s & l/c. My n/a cam is .270 @.050 and .600 with a 104 center and 106 l/s and it's gnarly sounding.
Is that the f303? Mine still has a bit of the bumpity bumpity sound even with the turbo's. I can tune it so it sounds more or less aggressive via. timing and fuel adjustments…but for now, this is how it sounds. http://videos.streetfire.net/video/3f193ee2-3089-440b-b132-99ea0150d4a0.htm
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« Last Edit: January 15, 2008, 02:04:12 PM by Millhouse »
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1997 Rio Red Cobra Vert
Gone but not forgotten, 1989 TT notch... Best 1/4: 11.35 @ 125.84mph (1.77 60') 489rwhp/527rwtq
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Gen1SVE
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There are plenty of cams that will work great with a turbo and are lumpy. E,F-303. Also many of the custom hyd-roller turbo cams will be lumpy. My turbopeople hyd-roller is very lumpy. I'll try to get a vid of it at idle with the new 4.5" borla this weekend.
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Dart 306, S488, C-4, 738rwhp @ 25psi
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Supernatural Turbo
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How big a motor is it? You've gone from 270º to 226º ?!?!? just with the addition of a turbocharger?!? Something's not right.
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fastranger347
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lumpy is kinda hard with those pesky castiron turbine housings bolted on the exhaust, there is very little you can do
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347, twin 61's, aod, holley fuel injection, all done on a budget
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Gen1SVE
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When I pull my 95 turbo lightning into the inspections lanes of Del-Dot, they all laugh and say there is no way that thing is going to pass (it is that lumpy). A few key strokes and it will pass the sniffer then they try to fail me because of noise. Last time I had an on looker watching me tune as they started the sniff test. She said"Hey he has a labtop in there" They have no idea how to take it. As far as the noise test, once I tell then that there are no tunnels in DE (in wilmington the do the sound test indoors) they will test it outside where it passes by 2 db's. But by the time I get outside I have returned the tune to stinky and the tester will ask and this thing passed emissions? Another note the larger the turbine wheel/housing the louder and more defined the idle will be.
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Dart 306, S488, C-4, 738rwhp @ 25psi
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CW25
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Poor mechanic playin' a rich mans game.
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Another note the larger the turbine wheel/housing the louder and more defined the idle will be.
I agree with that one. My truck sounds completely N/A when idling and driving around. I have the N/A cam that no one reccomends and I may be givin up HP but damn it sounds good. It had a decent amount of lumpy 10-12" vac at 900 RPM. I am temped to change the cam to see if I pickup hp but I do enjoy the way it sounds. I can't put the power I have to the ground on the street anyways... Oh, specs on the cam is 228@.050" and .501" flat tappet cam.
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Curtis 11.67@118 with 8 psi boost and 2400 DA 79 D100 + 400BB + S400 + MSII + roller cam = supurb drivability and mid 11s on pump gas  2007 Jeep SRT8 CAI and predator. Maybe mid 13s?
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badassmav
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The 270 @ .050 is in my 351w nos motor, and it just rocks, 3-4 inches of vac. in park , non in gear, But the cam I had ground off of an f-cam, is .226 @ .050 and 114l/s and l/c. My question is even though I'd be losing alot out the exaust, could I run a 240-250? @ .050 with a 106-108 l/c l/s and still run like a banshee, my guess is it would come on boost later or higher in the rpms?? As SNYPER knows I'll put up with alot in a vehicle as far as driveability goes, maybe I'll get another cam ground and if I'm not 100% with it I'll just spray the bitch too!! Thanks guys My ex. housing is 1.05a/r with a 3.5" outlet, shouldn't be to restrictive on a 302.
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"HE WHO HESITATES GETS SMOKED" 10.42 @ 132 w/1.49 60ft so far
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Cobra93
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Sorry coppied itself
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vader_turbo
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Your car sounds great!!! Can you give us a rundown off your combo?
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Double Oak, Tx DFW I'm a bitch and everone hates me
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Cobra93
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sure its a 93 cobra with a built motor. Dart block bored .030 to match my old rotating assembly. Now 306 with scat crank, eagle rods, srp dish pistons. Car has 4 bolt main girdle and a 7 qt oil pan. As far as the top of the motor goes it has afr 185 heads that have been ported, a gt-40 lower intake agressively ported to match the new heads with their porting, and a downs ford upper intake on top of that. Car has an e-303 camshaft with 1.71 roller rockers, and I forget the valve size and spring constant, but both are after market. The turbo kit is a PTK 76 gts kit, but I didn't buy the gts turbo while I was on my stock block. Currently on a mp t-70, but will be upgrading soon. car has a 3 inch y-pipe that splits off into 2 2.5 that matches up to a custom cat back with slp lm1 resonators. Anything else you wanna know you just let me know.
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vader_turbo
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HHHMMMMM I need some action vids 
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Double Oak, Tx DFW I'm a bitch and everone hates me
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Cobra93
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me too.. The only one I have is too embarrassing to show any of you. Its me having fun destroying second gear in a neighborhood, than getting my accelerator stuck under a floor mat and bouncing off rev limiter pretty violently for about 2 seconds, and blowing a header gasket. Seems like I cant ever get people to ride in my car and shoot vids for me. None of em have any issues driving my car though... Wonder what that means  .
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Supernatural Turbo
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My question is even though I'd be losing alot out the exaust, could I run a 240-250? @ .050 with a 106-108 l/c l/s and still run like a banshee, my guess is it would come on boost later or higher in the rpms?? As SNYPER knows I'll put up with alot in a vehicle as far as driveability goes, maybe I'll get another cam ground and if I'm not 100% with it I'll just spray the bitch too!! Thanks guys My ex. housing is 1.05a/r with a 3.5" outlet, shouldn't be to restrictive on a 302.
I don't think you need (or will like) a 240-250º cam in that 302. Do something around 230-236. And go ahead and put it on a 112-113º LSA. Advance it to about 108-109º. It will do nicely and will make plenty of sound.
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turbo66
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I run 234/234 @ .050 535/535 114deg lobe sep, idles with a nice rump and will spin out past 6800 still making good power, is a flat solid. 
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1966 XP Falcon coupe 10.42@133 3500lbs (old 306) World 364 twin GT3582r's
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crapr6
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Here is a video of my car. Has the Anderson Ford Motorsports B451 blower/tubro camshaft.  Big thanks to Dwayne Big Daddy Gutridge for taking my car in late on a saturday and spending countless hours on my car! Aslo thanks to my good buddy Brian Applegate from Downs Ford.
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« Last Edit: January 17, 2008, 05:06:26 PM by crapr6 »
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crapr6
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Blower AND turbo camshaft all in one, huh...
Hmm.
My bad its a N2o or SC camshaft. I called Rick when building the motor and he said this is the cam to run. Iam pulling the motor soon due to a small oil leak coming from the head, so iam really thinking about doing a solid roller camshaft now.
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« Last Edit: January 16, 2008, 10:37:24 PM by crapr6 »
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TK
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I run a 231/240 @ .050" on 114 centres mech flat tappet in my 383 - it's got a fair ol lope to it but you couldn't call it lumpy.
By the time you stick in a cam big enough to get a lumpy idle & still be suitable for turbo you'll have a fairly peaky/laggy engine that only goes hard with big revs on board - even my cam makes grunt to 7000rpm, bigger & you'll really have to wring it's neck.
To hell with lumpiness - I'd rather have a combo that works well, goes hard & doesn't attract too much attention.
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Robert1320
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Is there such a thing, I miss my lumpy idle that would scare off punk kids. I want a cam that sounds good and still work good with boost, am I asking for the impossible. Right now mine specs out at: .226 @.050 .512 lift and 114l/s & l/c. My n/a cam is .270 @.050 and .600 with a 104 center and 106 l/s and it's gnarly sounding.
You guys are trying to hard. Just add a vacuum leak to the motor. Use a air idle solenoid. Open it with a switch at idle. The vacuum leak it creates will give you the lumpy rolling idle.  Of course put it on a mon/off switch so you can't leave it on.
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vader_turbo
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 Do you guys know where I can find the loudest most retarded sounding blow-off?
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Double Oak, Tx DFW I'm a bitch and everone hates me
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Cobra93
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vader_turbo
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« Last Edit: January 17, 2008, 07:55:21 AM by vader_turbo »
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Double Oak, Tx DFW I'm a bitch and everone hates me
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Pages: [1] 2 3
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