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Re: boosted cams,post yours. [Re: BigBlockMopar] #618487 02/27/10 12:16 AM 02/27/10 12:16 AM
Joined: Nov 2006 Posts: 1,090 north cakalaky I instigator super stock
instigator super stock I Joined: Nov 2006 Posts: 1,090 north cakalaky	Bullet solid flat tappet 259/255 @ .050 .625/.620 @ 1.6 114 deg centerline hopefully getting motor together tomorrow! 408ci Indy 360-2 230cc Twin 67mm turbos 65 Barracuda All aluminum Indy HEMI with some boost! COMING TO A TRACK NEAR YOU!

Re: boosted cams,post yours. [Re: blownzoom440] #618488 03/01/10 01:19 PM 03/01/10 01:19 PM
Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio Challenger 1 Too Many Posts
Challenger 1 Too Many Posts Joined: Feb 2005 Posts: 28,312 Cincinnati, Ohio	For my blown 451" BAE motor.

Re: boosted cams,post yours. [Re: blownzoom440] #618489 03/01/10 04:56 PM 03/01/10 04:56 PM
Joined: Feb 2007 Posts: 2,578 sweden 1 1Fast340 master
1Fast340 master 1 Joined: Feb 2007 Posts: 2,578 sweden	Intake Duration at .050 inch Lift 242 Exhaust Duration at .050 inch Lift 248 Intake Duration 280 Exhaust Duration 286 Intake Valve Lift 0.570 in. Exhaust Valve Lift 0.576 in. Lobe Separation (degrees) 110 Intake Valve Lash 0.016 in. Exhaust Valve Lash 0.018 in. my solid roller, one of the remaining parts from my old N/A 340 and i will keep it in my newbuilt 340 with the old ported edelbrock heads but new milled down TRW pistons making 8.1:1compresion and a lysholm twinscrew, hope it will make som power at 15psi on pumpfuel i know im new to building a blown engine and this may be far from perfect but i hope it will work fairly good

Re: boosted cams,post yours. [Re: 1Fast340] #618490 03/02/10 12:35 AM 03/02/10 12:35 AM
Joined: Jan 2005 Posts: 2,540 Milwaukee WI T TRENDZ master
TRENDZ master T Joined: Jan 2005 Posts: 2,540 Milwaukee WI	After trying ALOT of cams and turbos on the same basic engine, I came up with some very basic self tested rules: The smaller the turbine, the smaller and wider you want the cam. Pump gas likes less lsa at higher boost levels. Race gas likes more lsa (seems backward doesn't it?) A free flowing turbine/wheel combo will like a cam closer to that of a n/a engine, don't be afraid of a 260+ cam. "use it 'till it breaks, replace as needed"

Re: boosted cams,post yours. [Re: TRENDZ] #618491 03/02/10 09:40 PM 03/02/10 09:40 PM
Joined: Nov 2006 Posts: 419 huron,ohio B b1headman mopar
b1headman mopar B Joined: Nov 2006 Posts: 419 huron,ohio	290@.050 int 298@.050 ex .800 int lift .780 ex lift 114 lsa

Re: boosted cams,post yours. [Re: b1headman] #618492 03/05/10 12:52 AM 03/05/10 12:52 AM
Joined: Apr 2006 Posts: 3,675 Akron, Ohio U.S.A. roadhazard master
roadhazard master Joined: Apr 2006 Posts: 3,675 Akron, Ohio U.S.A.	Scott you need to put some cam in that thing

Re: boosted cams,post yours. [Re: roadhazard] #618493 03/14/10 11:31 AM 03/14/10 11:31 AM
Joined: Mar 2005 Posts: 2,601 ky H headhunter master
headhunter master H Joined: Mar 2005 Posts: 2,601 ky	ok dumb question time as you can tell im full of them lol. how bad is it to run a n/a cam in a turbo motor?like a comp cams 305-305 525-525 hyd with a 110 centerline? does running the n/a cam hurt the motor

Re: boosted cams,post yours. [Re: headhunter] #618494 03/14/10 07:44 PM 03/14/10 07:44 PM
Joined: Jan 2005 Posts: 2,540 Milwaukee WI T TRENDZ master
TRENDZ master T Joined: Jan 2005 Posts: 2,540 Milwaukee WI	A cam like that would really flatten out engine performance, unless you had HUGE turbine wheel(s) and housing(s). There is to much int/ex overlap to run a normal turbine selection. On the positive side, you wouldn't hurt your engine with a cam like that. You would contaminate the intake charge with alot of exhaust gas. You wouldn't make enough power to hurt anything. "use it 'till it breaks, replace as needed"

Re: boosted cams,post yours. [Re: TRENDZ] #618495 03/20/10 08:11 AM 03/20/10 08:11 AM
Joined: Mar 2005 Posts: 2,601 ky H headhunter master
headhunter master H Joined: Mar 2005 Posts: 2,601 ky	orderes my cam today from bullet cams its a 246-250 at 50 and 525-540 lift with a 114 lsa think it will be a decent cam for a 446 with a 88mm ball bearing unit?

Re: boosted cams,post yours. [Re: headhunter] #618496 03/20/10 12:00 PM 03/20/10 12:00 PM
Joined: Jan 2005 Posts: 2,540 Milwaukee WI T TRENDZ master
TRENDZ master T Joined: Jan 2005 Posts: 2,540 Milwaukee WI	Sounds like a real nice choice to me. "use it 'till it breaks, replace as needed"

Re: boosted cams,post yours. [Re: feets] #618497 03/22/10 02:07 AM 03/22/10 02:07 AM
Joined: Feb 2004 Posts: 4,501 Gainesville,FL G goldmember master
goldmember master G Joined: Feb 2004 Posts: 4,501 Gainesville,FL	Quote: Here's my monster cam specs. Think you can hang with this baby? This is rocket science right here! intake/exhaust .006 duration 284/280 lift .474/.483 .050 intake open 6 btdc close 50 abdc .050 exhaust open 48 bbdc close 4 atdc duration at .050 236/232 lobe lift .3160/.3220 separation 112 You can see there's only 10 degrees of overlap. That's as tight as we could get it without going to a custom blank. Keep in mind that this cam was ground 10 years ago. Comp wasn't doing a lot of turbo cams since turbos V8s weren't very common. Much has changed since this thing was built. I'm sure people know far more about turbo cams now than they did then. However, this thing makes decent power. You can't argue with that. Your overlap is 58 degrees. It makes no sense to give overlap at .050 although I see lots of confusion from even folks that should know better. I don't mean that cam is wrong for your application and overlap done right is a good thing. Last edited by goldmember; 03/23/10 02:42 AM.

Re: boosted cams,post yours. [Re: goldmember] #618498 03/22/10 02:08 PM 03/22/10 02:08 PM
Joined: Jan 2003 Posts: 28,067 Irving, TX feets Senior Management
feets Senior Management Joined: Jan 2003 Posts: 28,067 Irving, TX	You're the first one who's ever brought that up. All I know is that was as close as Comp could grind it without going to a custom blank. I wanted as little as possible. It's worked for several years so I guess I can't complain too much. We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon

Re: boosted cams,post yours. [Re: feets] #618499 03/22/10 04:07 PM 03/22/10 04:07 PM
Joined: Jul 2005 Posts: 8,647 ELYRIA,OH B blownzoom440 OP
blownzoom440 OP B Joined: Jul 2005 Posts: 8,647 ELYRIA,OH	Quote: You're the first one who's ever brought that up. All I know is that was as close as Comp could grind it without going to a custom blank. I wanted as little as possible. It's worked for several years so I guess I can't complain too much. and that is what comp told me about my roller i listed.i have 40* overlap at .050 and 70* total.

Re: boosted cams,post yours. [Re: blownzoom440] #618500 03/22/10 06:19 PM 03/22/10 06:19 PM
Joined: Jan 2003 Posts: 28,067 Irving, TX feets Senior Management
feets Senior Management Joined: Jan 2003 Posts: 28,067 Irving, TX	Yours is a roller which does change things but it's still a lot more cam than what I've got. We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon

Re: boosted cams,post yours. [Re: feets] #618501 03/22/10 06:51 PM 03/22/10 06:51 PM
Joined: Jul 2005 Posts: 8,647 ELYRIA,OH B blownzoom440 OP
blownzoom440 OP B Joined: Jul 2005 Posts: 8,647 ELYRIA,OH	i dont know how much i gained with the cam change going to a roller because my carbs were holding me back. that also effected my cam choice where i may have gone another way.

Re: boosted cams,post yours. [Re: blownzoom440] #618502 03/22/10 09:32 PM 03/22/10 09:32 PM
Joined: Oct 2007 Posts: 846 Illinois moparmattkos mopar addict
moparmattkos mopar addict Joined: Oct 2007 Posts: 846 Illinois	I sent all my info to Comp to have them spec a cam for my indy head turbo big block, and this is what they sent me back. Part #: 23-000-9 Grind #: 4001/4121 R115+2 Duration @ .050�: 248/244 Lift w/ 1.5 Ratio: .630/.615 LSA: 115 Advance: +2 www.sikosracing.net Heads up Drag racing

Re: boosted cams,post yours. [Re: moparmattkos] #618503 03/23/10 03:23 AM 03/23/10 03:23 AM
Joined: Jul 2005 Posts: 8,647 ELYRIA,OH B blownzoom440 OP
blownzoom440 OP B Joined: Jul 2005 Posts: 8,647 ELYRIA,OH	any track results with that yet.i have more duration because i am running a factory 346 iron head.

Re: boosted cams,post yours. [Re: blownzoom440] #618504 03/24/10 08:49 AM 03/24/10 08:49 AM
Joined: Nov 2008 Posts: 833 MN hemidup super stock
hemidup super stock Joined: Nov 2008 Posts: 833 MN	I'm thinking about a cam swap. Currently running a Paxton blower with a 216/220, 114 LSA. I have 2 other cams I could use. One a 219/224, 114 LSA and the other a 205/210, 116 LSA. Also have 4.56 gears and 3800 stall. The truck has always e.t'd better than MPH. Jerry Williams.

Re: boosted cams,post yours. [Re: hemidup] #618505 03/24/10 09:01 AM 03/24/10 09:01 AM
Joined: Jul 2005 Posts: 8,647 ELYRIA,OH B blownzoom440 OP
blownzoom440 OP B Joined: Jul 2005 Posts: 8,647 ELYRIA,OH	something like a 4.10 gear might help.i think we need more info on your combo,performance. Last edited by METAL STORM; 03/24/10 09:02 AM.

Re: boosted cams,post yours. [Re: blownzoom440] #618506 03/24/10 09:40 AM 03/24/10 09:40 AM
Joined: Nov 2008 Posts: 833 MN hemidup super stock
hemidup super stock Joined: Nov 2008 Posts: 833 MN	Quote: something like a 4.10 gear might help.i think we need more info on your combo,performance. The truck has 3.92's, but with the small selection of 17" drag radials available, the gear ratio works out close to 4.56. 3.0 1st gear, 1.67 2nd and 1:1 3rd. She weighs in at a whopping 5166 lbs. 1.48 60' and I'm in 3rd by the 330 going through the 1/4 mi traps in the top of 3rd at 6200 rpm. I'm happy as heck with her 1-2, 2-3 performance. Run high 6.80's @ 98 in the 1/8th but she just doesn't pull as hard as she should in 3rd running 11 flat with mid teens in the 1/4. I use w/m and at times have given the engine a small 30 shot of n2o to make sure the ait's stayed in check. I was just wondering if changing out to a cam with a wider power band would help in 3rd? Jerry Williams.

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