street BBC solid roller
Moderator: John_Heard
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street BBC solid roller
i've have a chance at buying a Lunati solid roller that i was told is streetable and am wondering what i can expect for idle characteristics and/or performance in a 12:1 BBC 427. it is in a '69 Nova SS 4 speed car with power disc brakes and cam specs are the following;
adv duration; 287-Int / 292-Exh
duration @ .050; 251-Int / 255-Exh
lift; .630-Int / .630-Exh
lobe seperation; 108-Int / 112+4-Exh
Thanks in advance!
adv duration; 287-Int / 292-Exh
duration @ .050; 251-Int / 255-Exh
lift; .630-Int / .630-Exh
lobe seperation; 108-Int / 112+4-Exh
Thanks in advance!
Re: street BBC solid roller
Looks fine to me, its a little smaller than a cam I had in a 454 with an auto ran it on the street for years no issues. Its not going to idle like the new Ford Fusion though
- Moparious Maximus
- Posts: 125
- Joined: Mon Oct 05, 2009 6:05 pm
- Location: Iowa
Re: street BBC solid roller
Years ago we built a 10:1 427 BBC street motor, solid roller cam, it was 244* .600, 244* .600, it was definently NOT over cammed, very mild mannered on the street, it was in a 4 speed Vette.
Ended up being to much motor for the car, damn thing kept breaking things.
I dont think that cam is even near too big for the street.
Ended up being to much motor for the car, damn thing kept breaking things.
I dont think that cam is even near too big for the street.
'63 Plymouth, Straight axle, Leaf springs, Drum brakes, 31x10.5wx15 Rears 3215lbs
Best time to date 7.99 @ 170 mph
572" Wedge 8-71 @ 28% OD, ALKY, Glide, Dana
http://www.youtube.com/watch?v=vq-xzFWHtFk
http://www.youtube.com/watch?v=JfyZSw59R_o
Best time to date 7.99 @ 170 mph
572" Wedge 8-71 @ 28% OD, ALKY, Glide, Dana
http://www.youtube.com/watch?v=vq-xzFWHtFk
http://www.youtube.com/watch?v=JfyZSw59R_o
Re: street BBC solid roller
Mine is a 427 BBC and I ran a CompCams hyd roller - .612 lift - 252 @ .050 duration - I ran this one a long time on the street and it was great.
I'm stepping up now to a Crane solid roller - .714 lift - 264 @ .050 - I'll be running this one on the street as well, and don't expect to have a lot of trouble with it.
Of course, I do have the huffer and that takes some of the ugly out...
I'm stepping up now to a Crane solid roller - .714 lift - 264 @ .050 - I'll be running this one on the street as well, and don't expect to have a lot of trouble with it.
Of course, I do have the huffer and that takes some of the ugly out...
1969 ProStreet Camaro RS Best 9.75@139 1.46 60'
Blown 427 BBC, TH400 w/Brake, Back-Half Ladderbar
Narrowed 12-Bolt, 4.10 Gears, Spool, Moser 33 Spline
http://www.marsh-racing.com/harrys_camaro-1.htm
Blown 427 BBC, TH400 w/Brake, Back-Half Ladderbar
Narrowed 12-Bolt, 4.10 Gears, Spool, Moser 33 Spline
http://www.marsh-racing.com/harrys_camaro-1.htm
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- Joined: Thu Mar 01, 2007 8:38 pm
Re: street BBC solid roller
i was just concerned with vacuum for the power disc brakes and what idle characteristics it will have......kinda hoping for somewhat decent vacuum yet still have a nice lope or racy idle......any ideas on either?
Re: street BBC solid roller
IMO it's better to under cam a motor than it is to over cam a motor. I think it's a good cam for your motor.
Blackhoodmafia!!!!
1972 Nova SS
572 C.I. BBC
Best to date: 1/8
et: 5.28
mph: 134
new wt. 3340 lbs
1972 Nova SS
572 C.I. BBC
Best to date: 1/8
et: 5.28
mph: 134
new wt. 3340 lbs
Re: street BBC solid roller
Yep, what Chris said...supernova wrote:IMO it's better to under cam a motor than it is to over cam a motor. I think it's a good cam for your motor.
1969 ProStreet Camaro RS Best 9.75@139 1.46 60'
Blown 427 BBC, TH400 w/Brake, Back-Half Ladderbar
Narrowed 12-Bolt, 4.10 Gears, Spool, Moser 33 Spline
http://www.marsh-racing.com/harrys_camaro-1.htm
Blown 427 BBC, TH400 w/Brake, Back-Half Ladderbar
Narrowed 12-Bolt, 4.10 Gears, Spool, Moser 33 Spline
http://www.marsh-racing.com/harrys_camaro-1.htm
Re: street BBC solid roller
I'd run that on the street with no worries. We run a 600" bbc on the street with over .800 lift and never have any problems.
5.004 @142.6
Re: street BBC solid roller
It will have the idle you want but the brakes may suffer a little bit.dragracer5372 wrote:i was just concerned with vacuum for the power disc brakes and what idle characteristics it will have......kinda hoping for somewhat decent vacuum yet still have a nice lope or racy idle......any ideas on either?
Re: street BBC solid roller
I don't remember the specifics, but another friend of mine had the same worries (lack of vacuum for brakes) - he was considering using an OEM electric vacuum pump - you can find them on a lot of original vehicles at your local pick-n-pull - cadiallac, audi, etc. - do a search on Yellow Bullet for 'electric vacuum pump'...sc racing wrote:It will have the idle you want but the brakes may suffer a little bit.dragracer5372 wrote:i was just concerned with vacuum for the power disc brakes and what idle characteristics it will have......kinda hoping for somewhat decent vacuum yet still have a nice lope or racy idle......any ideas on either?
1969 ProStreet Camaro RS Best 9.75@139 1.46 60'
Blown 427 BBC, TH400 w/Brake, Back-Half Ladderbar
Narrowed 12-Bolt, 4.10 Gears, Spool, Moser 33 Spline
http://www.marsh-racing.com/harrys_camaro-1.htm
Blown 427 BBC, TH400 w/Brake, Back-Half Ladderbar
Narrowed 12-Bolt, 4.10 Gears, Spool, Moser 33 Spline
http://www.marsh-racing.com/harrys_camaro-1.htm
- TubbedTruck67
- Posts: 374
- Joined: Wed Oct 25, 2006 11:59 am
- Location: Joplin, Mo
Re: street BBC solid roller
Thats a very streetable cam. I run a .660 lift and 259in and 270ex duration at .50 on the street quit a bit.
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- Posts: 19
- Joined: Thu Mar 01, 2007 8:38 pm
Re: street BBC solid roller
THANKS for all the responses.....i will give it a try. and i have heard that many times about not wanting to overcam too--i don't want overkill, but i do want it sound good too so i hope it does. Thanks again!
Re: street BBC solid roller
Nothing wrong with overkill...dragracer5372 wrote:THANKS for all the responses.....i will give it a try. and i have heard that many times about not wanting to overcam too--i don't want overkill, but i do want it sound good too so i hope it does. Thanks again!
1969 ProStreet Camaro RS Best 9.75@139 1.46 60'
Blown 427 BBC, TH400 w/Brake, Back-Half Ladderbar
Narrowed 12-Bolt, 4.10 Gears, Spool, Moser 33 Spline
http://www.marsh-racing.com/harrys_camaro-1.htm
Blown 427 BBC, TH400 w/Brake, Back-Half Ladderbar
Narrowed 12-Bolt, 4.10 Gears, Spool, Moser 33 Spline
http://www.marsh-racing.com/harrys_camaro-1.htm
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- Posts: 19
- Joined: Thu Mar 01, 2007 8:38 pm
Re: street BBC solid roller
don't get me wrong--i LIKE overkill to a point too (on some things ) i am just wanting i think the best of both worlds.....something that will sound pretty healthy and still have "some" type of brakes too.....that, and i can get this one on a "trade-type" deal and it's brand new too. and he is telling me it will have a pretty healthy idle quality too it and still be able to maintain decent brake pedal so i was just looking for other opinions instead of basing it on the guy that's trying to trade with me....i would just hate to put it in and it's sounds wimpy and/or little or no brake pedal, but i figured i could run a vacuum canister at minimum or put a small electric vacuum pump on it too!
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