TA Mike.....I do not see what you mean....let me show you side by side, play by play. The Poston Intake is "Really" a single plane manifold with a center divider (hence S divider) as in it only has "ONE" single horizontal plane within the intake plenum. Removing the center divider and porting it out would create a true single plane manifold, but would it run good with that much plenum volume is the question. Usually the runners are at a more extreme angle to assist in port velocity and throttle response. The TA Intake has two planes, the passenger side being the higher of the two. That makes it a "DUAL" or two horizontal plenum planes. The only difference is plenum volume and it's effects on torque. The smaller the volume the more torque it makes, quicker throttle response and velocity down the passenger side of the intake manifold. On the drivers side the air movement is slower due to the plenum volume and space. It's like a compromise between the street (small plemun volume) and race (large plenum volume). I hope you can see from these pictures, it seems to be a good example.
I spent some time last night laying out the poston for surgery.....I do believe i can make it all happen. I will have to add some to some of the runners after removing the center section....but I think it may just work. I will get some progress pics this weekend.
a few pics of my almost completed manifold......the rest of my motor is ready for assembly so we will see how it works soon !!!
dang thing.....takes forever to upload pics...will have them tonight. I know this thing is going to work well.
my pics.......hope to get this on my new motor soon.... motor will have 11.1-1, 585-275 solid cam, fully ported heads with 194 int 155 ex,all oil mods, roller rockers and alot more...lets hope it goes well........ http://s615.photobucket.com/albums/tt238/mhgs/
We've got piles upon piles of data back from the '80s and '90s when dad made the intake, not to mention all the stuff that he has thrown away over the years. It was tested so much when it first came out (by big name people/companies too) he got sick of it because someone was always trying to test it for performance differences or to prove that it didn't do anything but they usually were always proved wrong, except for those who didn't know how to build the engine and after seeking dads advise found the performance difference they were either trying to prove or disprove. I don't know what happened to all of the old stuff as it was moved upstairs and probably mixed in with other stuff, buried and moved around a couple times since then. Id also have to vouch that all the phone calls we get about it are what a difference it made, not that it didn't do anything.
One thing I know for certain. You can't put a Holley on a stock intake. It just doesn't work well. That goes for the Edelbrock carb also. Stock is great if you got a stock intake with a Q-Jet. But they are not the easiest carb to rebuild. I can take the Holley apart and have it done and back together in a half an hour. Plus you save 35 lbs. that means now you only have to shed another 75 pounds and you just knocked off a tenth in the quarter. The real plus is that you can run any carb with the TA intake and any kind of spacer combination without problems. It's a no brainer here. I never seen those Ken-Bell stories using a stock intake to make power, it was always with the TA intake.
Can the center divider on the TA intake be cut down any for improvement or is it just better to just leave it alone and just put a 2 inch open spacer on it? What solid lift cam from TA would you put in the 350. Ported heads and 10.6 compression, plus roller rockers.
I had the ta manifold on my other motor and it did well.....I had both the ta and poston next to each other before my mods...the poston was a natural , the ta I am not so sure about as the center has a " dual " plane where as the poston has only the center floor . As far as the cam ....I had the ta 310 in the othermotor and it always seemed as though I could never really run to the top of the rpm band as well as the torque curve. We will see about the new cam as it is solid as well as alot more lift and duration.
I like to mill off 1/4" from the center divider on the TA intake and then knife edge it, ALTHOUGH what you need is an X-Factor! A regular buick cam profile will not take advantage of the roller type advantages, you need a clean slate design profile. Contact a cam grinder like Comp Cams and explain you combination and how it reacted to the specs of both the TA 510 cam and the current Lunati then have them advise a custom grind. Tell them about you dyno numbers, track times, and nitrous use. BTW, Nick is running a Lunati that I bought him, and running very good times. He put a lot of thought into the cam before I ordered it for him.... I have a funny feeling that cam would get you 3 tenths with no other mods and the same shot.
I agree..... with a set of ported heads and valves and roller rockers...along with the compression, a good agressive split cam would certainly make a big difference.
More info on the cam that runs 12s, with Poston intake, STOCK low comp 350, manifolds and crappy exhaust. I also sent Nick some Hooker headers so stay tuned! http://www.v8buick.com/showthread.php?t=174677&highlight=lunati
my biggest question now is how much carb will i need with all the changes ....? I have an 850dp but am thinking I could use even more ??? Guess Iwould best serve myself by trying the 850 first.
I've been waiting for your progress post for a while,good to see someone trying to come up with something.Have you considered the use of one of those "turtles" on the floor of the manifold,some brand x,good breathing engines seem to like them.
The build you are describing is better than the 550 hp Rob Margel engine, which peaked with 1000 cfm carb. The bottom end was however soggy untill 2800 rpm. I think that 850 cfm will offer better throttle response and TQ down low compared to a 1000 cfm carb with the expense of a few hp on the top end.
was thinking the same .....although I want the power band up I still dont want to have to run a 4k stall ....I think the 850 with a 2800 stall will be my start. My goal is 450 plus hp so we will see. as far as the turtle...we thought of it and are going to see how it reponds as it is now......the idea is there so one step at a time
