Doc1647545523 Posted July 26, 2012 Report Share Posted July 26, 2012 This might be a deeper and less related question, but if BB's get your more displacement and tq whats the attraction to a v10 or v12? wouldnt the v10-v12s have more heat and thus less power per cubic inch? The following is my understanding. If those who know a great deal more about engines want to chime in, I'll defer to their superior knowledge and experience. There are trade-offs in choosing a particular engine size, number of cylinders, cylinder configuration, and the like. From my understanding, and in the most general of terms, the more cylinders you have for a given displacement, the smaller the cylinders can be and the less the reciprocating mass of the (smaller) pistons. So for two engines, each 6.0L, a 12 cylinder would be expected to run smoother and be capable of running higher RPM's than a 6.0L 6 cylinder engine would. This is just a broad and general observation, as many other factors come into play. And keep in mind there are practical engineering limits that make general rules invalid at the extremes. Quote Link to comment Share on other sites More sharing options...
KennyFKINPowerz Posted July 27, 2012 Report Share Posted July 27, 2012 Looking good man. I have always wanted to try machine work. Quote Link to comment Share on other sites More sharing options...
Cordell Posted July 27, 2012 Report Share Posted July 27, 2012 The following is my understanding. If those who know a great deal more about engines want to chime in, I'll defer to their superior knowledge and experience. There are trade-offs in choosing a particular engine size, number of cylinders, cylinder configuration, and the like. From my understanding, and in the most general of terms, the more cylinders you have for a given displacement, the smaller the cylinders can be and the less the reciprocating mass of the (smaller) pistons. So for two engines, each 6.0L, a 12 cylinder would be expected to run smoother and be capable of running higher RPM's than a 6.0L 6 cylinder engine would. This is just a broad and general observation, as many other factors come into play. And keep in mind there are practical engineering limits that make general rules invalid at the extremes. A V10 or V12 simply has more combustion happening per revolution of the engine making the engine "smoother", that being about the biggest difference. Lots of things come into play, and I'm not an engineer. Typically most people when they think of a V12 would think of something like a Ferrari where there is so much engineering that goes into it that its hard to compare it. Some may be interested to know that GM proposed creating a V10 version of the LS series of engines back during development, here is an old article that is somewhat relative to this topic and if anythign you may find an interesting read. http://www.gmhightechperformance.com/tech/0512htp_gm_stillborn_gen_3_v10_history/index.html Quote Link to comment Share on other sites More sharing options...
Nickey4271647545519 Posted July 31, 2012 Author Report Share Posted July 31, 2012 Well today was the last day of class I had to do work. But I managed to get a little work done. Since the motor was stroked an 1/4" we had to check clearances. We did this by setting the crank in the journals with a single rod/piston and moving to each hole to check clearances. I had no less than 1/8" of clearance, which is surprising considering I am using H-beam rods. Crank finally sitting in it's home. Checking the clearances. Quote Link to comment Share on other sites More sharing options...
351mach11647545510 Posted July 31, 2012 Report Share Posted July 31, 2012 lookin good Quote Link to comment Share on other sites More sharing options...
AWW$HEEET Posted July 31, 2012 Report Share Posted July 31, 2012 What is the driveability like on a big rat motor like that? Quote Link to comment Share on other sites More sharing options...
Patterson Posted July 31, 2012 Report Share Posted July 31, 2012 Easy peazy. Quote Link to comment Share on other sites More sharing options...
Nickey4271647545519 Posted July 31, 2012 Author Report Share Posted July 31, 2012 What is the driveability like on a big rat motor like that? Easy peazy. Yep. Put together a good combo and a Rat can be easy to drive. Our current engine (463 cubes) made 485hp and 540tq and I'd say it has as good or street manners as my B2200 does. This current build might be a little different though, but who knows as I think it's going to end up fuel injected. Quote Link to comment Share on other sites More sharing options...
Nickey4271647545519 Posted October 18, 2012 Author Report Share Posted October 18, 2012 Just bought heads for the engine. Brodix Big Brodies with 2.25/1.88 valves and 315cc runners. Freshish rebuilds with new springs and titanium keepers. Came out of Reher-Morrison's shop. Pics to come tomorrow. :fuckyeah: Quote Link to comment Share on other sites More sharing options...
nurkvinny Posted October 19, 2012 Report Share Posted October 19, 2012 What is the driveability like on a big rat motor like that? Fun. Quote Link to comment Share on other sites More sharing options...
AWW$HEEET Posted October 19, 2012 Report Share Posted October 19, 2012 sounds like a blast nickey. what is the weight savings of the brodix heads vs a set of 781s Quote Link to comment Share on other sites More sharing options...
ChevyMan1972 Posted October 19, 2012 Report Share Posted October 19, 2012 WORD!!! Quote Link to comment Share on other sites More sharing options...
Mattsv8 Posted October 19, 2012 Report Share Posted October 19, 2012 Pickup Trucks LOL. Pcikup trucks are the only things that can HaulAss. And some Haul many. I've wanted to build a nasty ass 454 setup for a while. Like 900hp under 470" na nasty! Quote Link to comment Share on other sites More sharing options...
Nickey4271647545519 Posted October 19, 2012 Author Report Share Posted October 19, 2012 sounds like a blast nickey. what is the weight savings of the brodix heads vs a set of 781s 70-75lbs Quote Link to comment Share on other sites More sharing options...
Nickey4271647545519 Posted October 2, 2013 Author Report Share Posted October 2, 2013 Just bought heads for the engine. Brodix Big Brodies with 2.25/1.88 valves and 315cc runners. Freshish rebuilds with new springs and titanium keepers. Came out of Reher-Morrison's shop. Pics to come tomorrow. :fuckyeah: Update time. Took the heads to Tim (NHRATA) to check them over. Quite a bit of work was needed. All the valves were bent, the bowl blend was extremely horrible causing the flow numbers to be down. 317cfm @ .700. I have since bought Doug Herbert stainless valves. Tim has been working with me on porting, teaching me a ton. If someone thinks porting is just enlarging ports and smoothing stuff out, then they're greatly mistaken. Here's a teaser of the heads Will have some Jesel sportsman shaft rockers here soon as well. Quote Link to comment Share on other sites More sharing options...
Green Bastard Posted October 2, 2013 Report Share Posted October 2, 2013 http://assets.diylol.com/hfs/dfc/e9d/d24/resized/stunned-cat-meme-generator-by-the-whiskers-of-ceiling-cat-it-s-beautiful-61e8d8.png?1319242946.jpg Seriously, it looks like that should flow very well. Quote Link to comment Share on other sites More sharing options...
Nickey4271647545519 Posted October 2, 2013 Author Report Share Posted October 2, 2013 Seriously, it looks like that should flow very well. They should do a pretty good job, I wasn't looking to increase port size as they're already a little bigger than I need. Instead we chose to focus on velocity and making the air as smooth as possible. I have preliminary numbers and I'm pretty happy with them. Quote Link to comment Share on other sites More sharing options...
zeitgeist57 Posted October 2, 2013 Report Share Posted October 2, 2013 Nick, is this monster going in your S10??? Quote Link to comment Share on other sites More sharing options...
Nickey4271647545519 Posted October 2, 2013 Author Report Share Posted October 2, 2013 Nick, is this monster going in your S10??? Was going to go in my dads 68 C10. But with that for sale, I'll be looking for something else to put it in. Will hopefully find a fox body or a 88-98 C1500 to throw it in. Quote Link to comment Share on other sites More sharing options...
Gergwheel1647545492 Posted October 2, 2013 Report Share Posted October 2, 2013 Was going to go in my dads 68 C10. But with that for sale, I'll be looking for something else to put it in. Will hopefully find a fox body or a 88-98 C1500 to throw it in. Why not swap it into the B2200?? Quote Link to comment Share on other sites More sharing options...
PRD2BDF Posted October 2, 2013 Report Share Posted October 2, 2013 Buy a cadillac limousine and put that in there for shits and giggles. But seriously, great build, love reading about them Quote Link to comment Share on other sites More sharing options...
10_penn Posted October 2, 2013 Report Share Posted October 2, 2013 Looks very well done. I am definitely wanting to do one of these someday. Good work sir! Quote Link to comment Share on other sites More sharing options...
Geeesammy Posted October 2, 2013 Report Share Posted October 2, 2013 Why not swap it into the B2200?? He wants to SR20 swap it. I agree with SR20 lol Quote Link to comment Share on other sites More sharing options...
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