Moparts
boosted cams,post yours.
Posted By: blownzoom440
boosted cams,post yours. - 02/20/10 07:37 AM
what have you used and on what,roots,procharger,turbo?
i have used 3 cams with my roots 8-71.
comp cam solid part# 23-000-S
grind# CRB3 6059/6061 S 113.0
lift int.541/exh.559 113 LSA
dur at .015 289/297
dur at .050 252/260
valve timing at .050
open int 13BTDC close59 ABDC
open exh 63BBDC close 17 ATDC
113 intake center
the current 1 i have in is
comp cam roller
grind# CRB3 4131B /4046B R 112.0
lash at .020
lift int .646/631exh
dur at .020 291/306
valve timing at .050
open int 21 BTDC close 59 ABDC
open exh 69 BBDC close 19 ATDC
installed at 109 CL spec
dur at .050 260/269 112 LSA
Posted By: joshking440
Re: boosted cams,post yours. - 02/20/10 02:26 PM
.715 lift
.248 @.050
lsa 114
Posted By: headhunter
Re: boosted cams,post yours. - 02/20/10 05:27 PM
havent gotten that far yet lol
Posted By: blownzoom440
Re: boosted cams,post yours. - 02/20/10 05:39 PM
Quote:
havent gotten that far yet lol
well you should be looking so you are not in a hurry when the time comes! 
1 of the reasons for this post is to bring info to those in need.now if people will post there info instead of thinking thay have some top secret cam thay should get over it. 
we are here to help each other not worry about what others might think of them.rant over.what ya got? 
Posted By: headhunter
Re: boosted cams,post yours. - 02/20/10 06:29 PM
still fabing the turbo system hopefully the hot side will be done next weekend
Posted By: blownzoom440
Re: boosted cams,post yours. - 02/20/10 07:00 PM
that is an important part. i bet it is hard to wait for things to get done.
Posted By: feets
Re: boosted cams,post yours. - 02/20/10 09:21 PM
I've been wondering about turbo cams for a while. Mine makes good power despite being an itty bitty .486" custom grind. I don't have the specs in my head but I have the cam card at home.
I know the turbo Buick guys as well as the Supras were running really strong numbers on stock cams.
Posted By: blownzoom440
Re: boosted cams,post yours. - 02/20/10 09:40 PM
Quote:
I've been wondering about turbo cams for a while. Mine makes good power despite being an itty bitty .486" custom grind. I don't have the specs in my head but I have the cam card at home.
I know the turbo Buick guys as well as the Supras were running really strong numbers on stock cams.
i had talked to my brother about the motorcycle cams used on a turbo hayabusa making 600HP from 1400cc's and he said the cams are a lot like the N/A cams.
Posted By: Kam*Kuda
Re: boosted cams,post yours. - 02/21/10 12:20 AM
I will likely use the one in my engine
112 lsa
intake 230 @ 50 - 525 lift
exhaust 236 @ 50 - 539 lift
It is a small hydralic roller
Posted By: Shaker223
Re: boosted cams,post yours. - 02/21/10 12:55 AM
This is what I have now and yes, this is at the valve. 1970 vintage.
Lift .385"I, .375"E
Duration 240I, 236E
Overlap 16
Lobe Sep. 111
Posted By: Defbob
Re: boosted cams,post yours. - 02/21/10 01:30 AM
.465", 220 @ .050
Posted By: whiplash
Re: boosted cams,post yours. - 02/21/10 01:46 AM
hughes 3038 cam on a 114 lsa
Posted By: Anonymous
Post deleted by Defbob - 02/21/10 02:17 AM
Posted By: Efidart
Re: boosted cams,post yours. - 02/21/10 07:08 AM
Still have this cam sitting on the shelf from my old roots setup solid flat tappet.
252 262 @ .050
.560 .580 lift
114 lsa I believe.
Turbo setup has a solid roller I'd have to look at the cam card again for exact specs but its about
274-286 @ .050
.680 .680
116.5 LSA.
Idles like a .509 mopar cam.
Posted By: The Shadow
Re: boosted cams,post yours. - 02/21/10 12:47 PM
The cam that was in my sdce bb was a roller
609/631
247/260@.050
115 lsa
Anybody looking for a procharger cam?
Posted By: DaytonaTurbo
Re: boosted cams,post yours. - 02/21/10 05:17 PM
Does that extra few degrees of LSA make a big difference on building boost?
Posted By: topfueldart
Re: boosted cams,post yours. - 02/22/10 04:19 AM
The wide LSA is to keep overlap and reversion to a minimum, you want to use the boost to push the piston down, and not let the exhaust back into the chamber or intake charge. When LSA is narrower, overlap is larger. (all other numbers being equal)
Posted By: feets
Re: boosted cams,post yours. - 02/23/10 02:45 AM
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.
Posted By: turbo66valiant
Re: boosted cams,post yours. - 02/26/10 09:54 PM
Erson
.465 I
.465 E
220 Duration at .050
-8 overlap
.050 intake open 0 tdc / close 40
.050 exhaust open 48 / close -8
114 LSA
110 ICL
101.5 Installed
This will be the third season on this cam.
Later
Posted By: BigBlockMopar
Re: boosted cams,post yours. - 02/26/10 10:03 PM
260/268-112, .630/.630 Solid Roller.
500ci / 8-71 / Indy 440-1
Posted By: instigator
Re: boosted cams,post yours. - 02/27/10 04:16 AM
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
Posted By: Challenger 1
Re: boosted cams,post yours. - 03/01/10 05:19 PM
For my blown 451" BAE motor.
Posted By: 1Fast340
Re: boosted cams,post yours. - 03/01/10 08:56 PM
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
Posted By: TRENDZ
Re: boosted cams,post yours. - 03/02/10 04:35 AM
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.
Posted By: b1headman
Re: boosted cams,post yours. - 03/03/10 01:40 AM
290@.050 int
298@.050 ex .800 int lift .780 ex lift 114 lsa
Posted By: roadhazard
Re: boosted cams,post yours. - 03/05/10 04:52 AM
Scott you need to put some cam in that thing
Posted By: headhunter
Re: boosted cams,post yours. - 03/14/10 03:31 PM
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
Posted By: TRENDZ
Re: boosted cams,post yours. - 03/14/10 11:44 PM
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.
Posted By: headhunter
Re: boosted cams,post yours. - 03/20/10 12:11 PM
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?
Posted By: TRENDZ
Re: boosted cams,post yours. - 03/20/10 04:00 PM
Sounds like a real nice choice to me.
Posted By: goldmember
Re: boosted cams,post yours. - 03/22/10 06:07 AM
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.
Posted By: feets
Re: boosted cams,post yours. - 03/22/10 06:08 PM
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.
Posted By: blownzoom440
Re: boosted cams,post yours. - 03/22/10 08:07 PM
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. 
Posted By: feets
Re: boosted cams,post yours. - 03/22/10 10:19 PM
Yours is a roller which does change things but it's still a lot more cam than what I've got.
Posted By: blownzoom440
Re: boosted cams,post yours. - 03/22/10 10:51 PM
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.
Posted By: moparmattkos
Re: boosted cams,post yours. - 03/23/10 01:32 AM
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
Posted By: blownzoom440
Re: boosted cams,post yours. - 03/23/10 07:23 AM
any track results with that yet.i have more duration because i am running a factory 346 iron head.
Posted By: hemidup
Re: boosted cams,post yours. - 03/24/10 12:49 PM
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.
Posted By: blownzoom440
Re: boosted cams,post yours. - 03/24/10 01:01 PM
something like a 4.10 gear might help.i think we need more info on your combo,performance.
Posted By: hemidup
Re: boosted cams,post yours. - 03/24/10 01:40 PM
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?
Posted By: blownzoom440
Re: boosted cams,post yours. - 03/24/10 01:48 PM
thanks for the update!not that i think it is effecting things badly i just wondered how much w/m are you injecting and how much boost?,fuel,timing,A/F mix at the top?i know it is a lot of ? but.
thanks.
Posted By: TRENDZ
Re: boosted cams,post yours. - 03/24/10 11:44 PM
There is a defined range for rpm/ duration. You are operating above and beyond that range. Supercharging or turbocharging helps to stretch that range. It lets you "get away" with things that you can't with a N/A motor. In your case, you're "getting away" with alot. 5000+ lbs and almost in the tens,,,, you're doing good. Treat your engine to a little breathing. Go with at least 230 @050. You will be pleasantly suprised.
Posted By: hemidup
Re: boosted cams,post yours. - 03/25/10 02:08 PM
Quote:
thanks for the update!not that i think it is effecting things badly i just wondered how much w/m are you injecting and how much boost?,fuel,timing,A/F mix at the top?i know it is a lot of ? but.
thanks.
w/m is turned on at 4psi just prior to seeing any knock and progressively ramps with boost. At 18 psi the little Paxton huffer is working o.t and I've planned on updating to a Procharger F1, but funds are tight at the moment and all my spare change is going towards the Drag Pak Challenger. The engine makes its best power with 10.8 a/f power rich and 11.2 power lean @ wot. Running a factory pcm with this Gen III Hemi puts stock timing at 18 degree's at wot, however I can pull up to 9 additional degree's where needed to stay ahead of the knock sensors before the factory pcm has the chance to pull timing and fuel. Fueling is handled by twin Walbro pumps feeding custom 66 lb injectors through an adjustable boost referenced regulator.
Posted By: hemidup
Re: boosted cams,post yours. - 03/25/10 02:30 PM
Quote:
There is a defined range for rpm/ duration. You are operating above and beyond that range. Supercharging or turbocharging helps to stretch that range. It lets you "get away" with things that you can't with a N/A motor. In your case, you're "getting away" with alot. 5000+ lbs and almost in the tens,,,, you're doing good. Treat your engine to a little breathing. Go with at least 230 @050. You will be pleasantly suprised.
I'd love to run a 230 cam, however I'm still using the factory pcm and I wouldn't be able to get the engine to idle unless I two foot the brake and gas. Your correct about a 230. I engine dyno'd a few of these new Hemi's with 230-232 duration cams with excellent results. One motor made 700hp/735tq at 5000 rpm, non interfcooled, with 9 lbs of boost before belt slip ended the session.
Posted By: furydave
Re: boosted cams,post yours. - 04/16/10 06:54 PM
ISKY .555/.570 LIFT
264 INTK/272 EXH @.50
.110 CENTERLINE
Great for a heavy car.4200 lbs!
8.1 Ross Piston
eddy 84cc head, crane golds
871 Bds
6 1/2 lbs of boost
Great on the street and bang on consistent.
Posted By: moparbob498
Re: boosted cams,post yours. - 07/31/10 05:12 PM
custom grind Crane--#68R000029
R-286/4668-2S3-12
lash .026 int.---.030 exh.
@.050- int. opens 34 BTDC CLOSES 72 ABDC 286* DUR.
EXH. OPENS 88 BBDC CLOSES 38 ATDC 306* DUR
112* CENTERLINE INSTALLED AT 108*
ADVERTISED .700 INT.---.715 EXH. 326*--356*
MAX RPM 8600
its my first roller and is unreal
Posted By: gg408
Re: boosted cams,post yours. - 08/01/10 12:53 AM
Solid flat tappet.
single pattern
236 @ .050".
.526" lift with 1.5 rockers
114 lsa
its a 410 w2 headed small block with a BW S480 turbo, hoping to make around the 850/900 fwhp.
Lets see what happens.
gg408
Posted By: RyanJ
Re: boosted cams,post yours. - 08/03/10 01:31 AM
Comp TK Solid Roller lobes, 242/242 @ .050" 112 LSA, 1.7 Rockers .737" lift. Made 678 HP @ 6700/588 TQ @ 4900 N/A today. Will dyno with turbo tomorrow... 417 inches W9 head.
Posted By: 67_Satellite
Re: boosted cams,post yours. - 08/07/10 02:24 AM
An "awesome" Crane powermax grind because that's what was in the engine when it was in the 66 Newport with 2.76 rear gears. .427" IN. .454" EX. 260-272 dur. 204-216@ .050 112 deg lobe sep. It will idle in gear at 550 r.p.m. 18"hg. in an 8.0:1 383 and pulls to 5400 r.p.m. with a single plane M1 at 8lbs. It'll have to do until something better falls from the sky.
Posted By: Clanton
Re: boosted cams,post yours. - 08/12/11 05:36 PM
Posted By: TheOtherDodge
Re: boosted cams,post yours. - 08/12/11 09:13 PM
Custom hydraulic roller: 220 duration, 520 lift, 114 lsa, 0 degrees of overlap.
If my stock block can hold it, see ya in the 9's!
