Tweet
a .82 wouldn't be the best bet for a BBB methinks... it's not like it's some mamby pamby SBC. HAHAHAHA. j/k. Probably more like a 1.30 ish... here's a lovely 1.25 starting point:
-
Flying south, with a flock of bird dogs. -
I wasn't saying a .82 would be good in his application, just saying that that is what works good for me........Cubic inches definitely play into this, along with if your running a single or twin setup....... Though with him only wanting to spin the motor 5000rpm, a 1.25 A/R would probably be to big........ and he'll end up with a lot of lag down low...........Originally posted by Beagle View PostComment
-
nah, it'd be fine. I'll let you know if I ever finish moving my crap and put the big single in the box on the 466. I believe it's 1.30 ish, 99lbs/min. Not quite as big as the one I put up there ^^
I'd think like an S480 or HX60 or something off a 14 liter diesel would make enough steam to create block issues.Flying south, with a flock of bird dogs.Comment
-
TC, I can comfortably say that your turbo choices are but random guesses. Since we're not ever likely to see a running engine, I guess you'll never need to worry about that.
Meanwhile, that was an interesting way to BS around your own BS.
So, cam choice depends on application now, but what about gapless rings? still always the best in ANY engine no matter what the application? that's what you said, after all...www.realtuners.com - catch the RealTuners Radio Podcast on Youtube, Facebook, iTunes, and anywhere else podcasts are distributed!Comment
-
In my experiences with Total Seal Gapless rings, I have had nothing but good results, that is all I can say. If others haven't, then they must not be doing something right........And I don't care if they are the god king ring guru of the world, they did something to not make them work......And at that what ring didn't work?? the top ring, second ring, oil ring?? Or are we talking about quality now?? and not really if they seal or not?? Thing is two of the sets of rings are going to be just like any other performance ring set that you would run, and the gapless ring is the same ring as the rest, but it has been machined down to accept a second ring, so your idea that the rings aren't as good as none gapless rings is total BS, because they are using the same rings in both applications..........Originally posted by dieselgeek View PostComment
-
relax sunshine, I don't have the real answer. Read what I just said twice - see how easy it is? If you don't know, then why the concern to have people think you do? My answer on gapless rings: I have no idea. I don't pretend to.www.realtuners.com - catch the RealTuners Radio Podcast on Youtube, Facebook, iTunes, and anywhere else podcasts are distributed!Comment
-
If the right ring and cylinder wall finish is used, there will be very little difference in cylinder seal between the two I use a total seal second ring. Ring pack and drag all factor in when you get down in ring width its a tricky time just setting the end gap, end gaps are critical.
Turbo Camshafts,,, I would call Mike Jones and see what he says he has had a lot of turbo applictions in cluding Indy Car stuff he may shed some light for you.2007 SBN/A Drag Week Winner & First only SBN/A Car in the 9's Till 2012
First to run in the .90s .80s and .70's in SBN/A
2012 SSBN/A Drag Week Winner First in the 9.60's/ 9.67 @ 139 1.42 60'
2013 SSBN/A Drag Week, Lets quit sand bagging, and let it rip!Comment
-
As much as you'd love me not to, I actually have experience with these rings, like I said I got my first two sets for FREE.....I've done the tests, because I, like you, are a skeptic and what they claimed is what I saw........Trust me you know how I am about crap parts companies(Edelbrock) so why would I be any different about them if their rings sucked..... I would be the first to stand up and say it...........So to their claims of higher vacuum and 2% or less leakage, I can say I've personally seen those results and have to concur with their findings..........As for the gains in cranking compression and HP in the Engine Masters article I can only take their word on their findings........Originally posted by dieselgeek View PostComment
-
Jeff building motors is like assholes and opinions, everyone's got one and everyone thinks their way is right.......Hell they can't even build two identical motors and get them to make the exact same HP........I'm sure your guy has his opinions, just like Duttweiler and Urban have theirs, but comparing an indy car motor to a BBB or SBC is really comparing apples to oranges......Every setup is different, so every setup requires different specs.......If that wasn't the case, then there would only be one motor, one camshaft, one set of heads, one intake, etc.............So what works for you might not work for the next guy..............Originally posted by JeffMcKC View PostLast edited by TC; October 27, 2011, 11:51 AM.Comment
-
interesting.... how about these specs?
Advertised Duration (Int/Exh) : 260/270
Duration @ .050 (Int/Exh): 220/230
Valve Lift 1.6 Ratio .500/.500
LSA 116
with hydraulic roller lifters I wonder if that's not a little mild (why not hold them open longer for better fill?Doing it all wrong since 1966Comment
-
Huh ig geuss that means something I just dont know what.Originally posted by TC View Post2007 SBN/A Drag Week Winner & First only SBN/A Car in the 9's Till 2012
First to run in the .90s .80s and .70's in SBN/A
2012 SSBN/A Drag Week Winner First in the 9.60's/ 9.67 @ 139 1.42 60'
2013 SSBN/A Drag Week, Lets quit sand bagging, and let it rip!Comment
-
You know how they list an "operating(rpm) range" for the cam, just find a cam that meets your max RPM you want to spin the motor, also boost will make the cam act smaller, so if you want a max rpm of 5000rpm, you could get away with a cam that has a max rpm is 5500........ I guess if that makes any sense........Originally posted by SuperBuickGuy View Post
Comment
-
Boost will fill, buick valve angles dont need tons of duration, but Lift is what I would look for.Originally posted by SuperBuickGuy View Post2007 SBN/A Drag Week Winner & First only SBN/A Car in the 9's Till 2012
First to run in the .90s .80s and .70's in SBN/A
2012 SSBN/A Drag Week Winner First in the 9.60's/ 9.67 @ 139 1.42 60'
2013 SSBN/A Drag Week, Lets quit sand bagging, and let it rip!Comment
-
Your going to loose a lot of cranking compression with that LSA.........I would run at least 9:1 compression,Originally posted by SuperBuickGuy View PostComment
Comment