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Need Opinions on Exhaust
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Posted by: Cody1774

I just priced out BBK headers with an H-pipe and Bassani headers with an x-pipe. This will be the first time I have put LTs and an H/X-pipe on a vehicle so I just wanted to poll you guys/gays and hear your opinions on what I should get. Thanks again

(It will probably be at least a few weeks before I have enough money put aside for it because I will probably get a diablosport tune as well)

Posted by: KartRacer39

IMHO I like the raspy sound the X-Pipe creates but if your looking for that super throaty sound go with the H-Pipe

Posted by: bullitt5177

I say go with the BBK/ h-pipe route. H-pipe's sound much more muscle car on stangs.

Posted by: Aussie XAXB

An alternative viewpiont. Here's my experience...

My wife's car when we got it had a relatively stock 289 2 bbl. (1966 Mustang) and an exhaust system that seemed to be a no-name system. It is aluminized though. The car sounded a little anemic like a car that was nothing special and had a bad exhaust system.

Now I have built this engine into a 331 stroker with GT-40 heads and a retro-fit roller cam and Tri-Y headers. Without touching the rest of the exhaust the car sounds like a race car now. I thought I was going to put a new exhaust system on the car but now there is no reason to.

So......

My point is this. Instead of sinking $600 into an exhaust system that only makes the car sound good, what about sinking that money into building your engine into something that makes that sound because of the added power it produces? Then you can spend less on the exhaust and have a faster car for the same money.

Steve

Posted by: Cody1774

Quote:

Originally Posted by Aussie XAXB

An alternative viewpiont. Here's my experience...

My wife's car when we got it had a relatively stock 289 2 bbl. (1966 Mustang) and an exhaust system that seemed to be a no-name system. It is aluminized though. The car sounded a little anemic like a car that was nothing special and had a bad exhaust system.

Now I have built this engine into a 331 stroker with GT-40 heads and a retro-fit roller cam and Tri-Y headers. Without touching the rest of the exhaust the car sounds like a race car now. I thought I was going to put a new exhaust system on the car but now there is no reason to.

So......

My point is this. Instead of sinking $600 into an exhaust system that only makes the car sound good, what about sinking that money into building your engine into something that makes that sound because of the added power it produces? Then you can spend less on the exhaust and have a faster car for the same money.

Steve

Well I guess that is definately an option, but what I felt was most important in gaining HP is getting air in, and getting it out as efficiently as possible. I just thought that logically the next step would be to get LT headers and an H/X-pipe.

Posted by: SMOKE

AussieXAXB brought up a good point in regards to increasing the performance of your mustang ..... the exhaust is certainly not going to cost as much as a power adder (S/C or turb) so saving that cash would put you that much closer to purchasing it.

I like Bassani so I'd probably go with them as a recommendation.

Posted by: Cody1774

I have decided that a supercharger is going to be a ways down the list, if I decide to go that route. I defintely want to read up on power adders before I make any final decisions but for mods in the close future I have the following in mind-

Long Tube hearders
H/X pipe (most likely the BBK H) (approx $1600 installed, headers and H-pipe)
Pulleys (approx $250)
Tune (approx $400)

I definately appreciate all the input and advice, since I am still an amatuer at all of this!

thanks guys

Posted by: Aussie XAXB

Quote:

Originally Posted by Cody1774

You've got the right idea since an engine is basically an air pump, but those changes will have much more affect (only some in stock form) if you make what is pumping the air (engine) more efficient. If you improve air in and air out you are still limited by the size/efficiency of the air pump in between.

You can provide a way for more air to get in but if the "in" hole stays the same size (same valve size or lift, same cylinder volume) then the affect will be minimal. Same on the outlet side. The air pump is still only capable of so much no matter how well it is permitted to inhale or exhale. The pump itself must change for a real difference in power.

Most performance exhaust systems are to complete a change in breathing of the engine due to a better intake manifold, new cam, or new heads. Same on the intake side, a better duct, air cleaner, air filter, cold air intake, or whatever permit a better "inhalation" of the engine when an intake manifold, cylinder head, or cam change has been performed.

Though there will be a difference without any other modifications to the engine when adding a performance exhaust it certainly will not pay off as it would with a change to the engine itself.

Steve

Posted by: Cody1774

I have the K&N FIPK II CAI, and a MAC 70mm Throttle body on the car right now, so I look around a bit on some Canadian sites to see about heads and all I could find were ford racing heads for the 4V engine. They were priced at $1200. Nothing for the 2V on that site. I just looked around somemore and found AFR heads (61cc run around $1600-$1900 and 58cc run $1700-$2300 and a 60cc at $2700). I am definately going to do some more reading and research on heads tomorrow, as well as cams and other engine parts. I have also found some good prices on 3.73s (I think 4.10s is too much for my application)

Thanks again Steve!

Posted by: Aussie XAXB

Everyone should read this article about camshafts. It is in their June Issue but they already have it posted on their site for FREE!!..

http://popularhotrodding.com/tech/06...mshaft_basics/

Incredible article.

Here I had written an involved dissertation until I posted the reply and remembered I was in the 4.6L forum, so just nevermind all the 5.0 crap I said. :P

You will not find "performance" 2V heads as the two words typically do not go together, with the exception of the 2V Cleveland heads which have larger valves than most 4V smallblocks of the same size as well as some even larger engines. The 4V Cleveland heads have valves larger than a 460.

As for rear gear on your car I don't know what would be best. Others here are more up to speed on the newer Mustangs and could steer you in the right direction.

Sounds like you are set for your engine to inhale, now you just need to deepen the inhalation and then put something out back to let it exhale.

Posted by: damego101

http://www.seanhylandmotorsport.com/

they have heads also and are in canada

Posted by: Cody1774

I got a little discouraged reading that article because I am so terrible with numbers, but I will defiantely sit down a go through it all again, or 3 or 4 more times whatever it takes to sink in!

Thanks for posting that Steve, without reading that I probably wouldn't have been able to make a proper decision to get max performance. There is way more to that stuff that I realized and it's great to try to grasp a better understanding of how things work and why. I have made an inquiry about some Cleveland heads, so hopefully I hear back from them soon.

Posted by: Wayne S

IMO I would do a nice mid pipe.. If it was me a DRgas X-pipe... And gears n tune.... 4.10s if staying N/A if you plan P/A down the line I would do 3.73s

Most likaly for the price of good long tubes and instal you could have a hole 31spline setup and gears instald and tune for same price... Mid pipe shouldn't cost that much

UM were these clev heads coming from? Windors and romeo is all i know for a 2v

Posted by: Cody1774

Well is it quite likely I will not get anything done to my car this summer now, as last night while out partying I broke my foot in two places. I will be off work for at least four weeks, so it is quite likely I will not have the funds to do any mods now. I guess this will give me TONS of time to read and research though.

Posted by: Aussie XAXB

The mention of the Cleveland heads was just a reference of valve sizes. They are the heads on the old 351 Cleveland engine of the early 1970's. They will not work on your engine.

Here's an article that should help you understand the first one I linked to a little more.

http://www.themustang-net.com/tech_a...amshafts.shtml

You can never know too much. Yes, that first one takes several readings to be able to grasp it all, even for me.

It is very in-depth.

Steve