My poor 350 is bored 0.50 over with a TA_284-88H-350 cam stock intake and manifolds. No cats, Walker turbo mufflers with H-pipe duals progressive shift kit TH-350 and Hughes 2K stall. The carb and distributor have been reworked by the guys at Engine Dynamics in Covina Ca. The wife is letting pour some more cash into my mistress..... So I am getting the TA_1235 intake and trying to figure out if the if I should go with the 1-5/8 or the 1-3/4 headers from TA. Keep in mind at this time I drive 400 miles a week from OKC to Salem Missouri. Thanks for the input. :Brow:
What do you have for gears? The T/A intake manifold is best left for applications where an iron manifold cant be tracked down in time, weight is a major concern or if you intend to run a square bore carburetor. For performance I will be fair and say it is on par with factory. Some may disagree with me but for a street car I think the 1 5/8" primaries are more than sufficient for builds under 400hp. Keeps some power down low. I know you are only looking for advice on headers and an intake but for what you would spend on an intake you could really get things moving with some 3.42s and a 2300rpm stall. with a th350 I suppose you do have to compromise performance gearing in order to keep highway rpms down. What is your total timing, when are you all in? I ask all this because if I remember your build correctly you have around 9.5:1 compression and you should be more than 300hp if everything is set up right
2.73 posi gearing LOTS of highway miles. And was going to use the TA to delete the EGR system and run a little cooler. Last compression check I was sitting at 195 psi Was supposed to have been a 10.0:1 rebuild according to my machine shop. 27 Degrees all in on the timing.
You do drive alot so unless you have the cash for an overdrive build you are right with the 2.73s, at least they are posi! Not familiar with CA. laws regarding deleting the EGR but I am pretty sure the TA intake is 50 state legal so that may be a good bet on increasing power. A TA intake also gives you the latitude to use a holly or a qjet without a spacer. I assume you run 93 right now, is that your total timing because you have detonation issues with more advance? A lot of Buicks run great 30-32* advanced and with the ta284 cam you should be bleeding off enough cylinder pressure to allow more advance. Someone please correct me if I am off base here
I'm smog exempt! ---------- Post added at 06:06 PM ---------- Previous post was at 06:04 PM ---------- I also do from time to time run 5 gallon of VP 110 blended with 15 gallons of 93 non-eth.
I would take a look at this thread if you haven't already and see if you can pick up some more power http://www.v8buick.com/showthread.php?63475-Power-Timing-your-Buick-V8&highlight=power+timing I re-read one of your posts about a trip to the track. What were your best times? As a bench mark I run 14.1 at 94 with a stock 8.5:1 350, ta 1 5/8" headers, 2.5" true dual exhaust, 3.73s, 2004r, 2600rpm stall, Everyday Performanc Qjet. I have an advantage in gearing but that is it, so if everything is as it should be, there is no reason why you shouldn't be in the high 13s
I actually printed that off and took it to Engine Dynamics when they recurved my distributor for me. they also cut down the vaccum advance I asked to be set for 27 degrees all in to maintain a little fuel mileage. I starved out on fuel half way down the track..... Damned stock fuel lines. I had 1/2 inch with a thermal shroud run and no starving out since.
So if i am reading this right block off the EGR, use the 1 5/8" primaries and advance the timing till I'm at about 32 all in.
I would skip the TA intake, the stocker is fine. I would be suprised if you saw even a 1% gain with the TA intake over stock. I would bump up the timing from 27 total to 32 total. Just raise the initial timing 5 degrees and you will be there. Add the vacuum advance on top of that and you will get better power and fuel mileage.
Sean I just have to ask you, all those intakes that KB, Poston, TA made for the 350 don't help anything except a little weight loss? Why would they build those other than to make money off people? They didn't help anything? Fred says no.
Greg, in all honesty with your combination I think there is alot you can play with with what you have to make more power. Delete the egr for starters. Getting some port work on those heads is the next thing I would start saving for after the headers. That will make all the difference. You won't even need shorter gears if you get those heads flowing
If there are any gains in the aftermarket intakes I have yet to see any proof. All we have so far is evidence suggesting the stock intake is just as good if not better than the TA and Poston intake. I have been told the intake KB used to sell is the same as the TA intake.
