Can you run ~1000hp through dual 4" exhaust without losing a bunch of power?

That could be a useful tool  

should just put stacks on it with a h-pipe across the roof,and a 650 holley. you'll be the talk of the boards like you want,and have a street car.
















instead of asking questions you already have the answers to

I hear Fabian has the perfect cam for that 650

I didn't lose anything with vibrant 4.0" X 9.0" race mufflers.   Truth be told, I only put them on (directly off of the header collector) to met noise requirements at one of the tracks I race at.  They don't do much "muffling" either lol.   Very light, however.   No X pipe, directly off of each header with a small 4.5" to 4.0" reducer (headers have a 4.5" collector).

http://www.summitracing.com/parts/vpe-1797/overview/

Wow the level of stupidity and immaturity in this place never ceases to amaze me.

Obviously there will be some loss but I was looking for minimal losses. Perhaps I should have said the class I plan on racing in requires mufflers and I wouldn't have gotten so many stupid responses.

I am not building my car by committee so frankly if you don't like the fact I am gonna drive it on the street tough shit. Maybe i am gonna run Power Tour next year with it, that is none of your concern.

The stigma of a thousand horsepower street car kinda confuses me though. In the grand scheme of things with modern fuel injection, over the shelf turbo kits, and mail order 550+ci engines a 900-1000hp street car ain't shit in this day and age.

Hell Scott Keplienger drove his Camaro from IN to Beloit and that thing makes 1800hp when it's set on kill. Don't even say "oh it only ran 8.xxx I worked on the car and he refuses to puta funny car cage in it so he keeps it dialed back to around 1300.

So grow the hell up crawl out from under the rock you been hiding under since 1984 and keep your mouth shut if you have nothing constructive to add to this thread.

I race a class like this also I'm running dyno max race bullets off the long tube headers it passed tech they said it was a muffler. All lights must work and tag show proof of ins.

gmsmkr wrote:I race a class like this also I'm running dyno max race bullets off the long tube headers it passed tech they said it was a muffler. All lights must work and tag show proof of ins.

These type classes are pretty cool !

I run the bullet muffler as well . I like them too ! 3" exhaust.

My son runs the spin tech mufflers and those things rock ! Power wise and sound. 3" exhaust
Neither of these are 1000 hp vehicles either !

Just my two cents

bigblok2000ranger wrote:Wow the level of stupidity and immaturity in this place never ceases to amaze me.

Obviously there will be some loss but I was looking for minimal losses. Perhaps I should have said the class I plan on racing in requires mufflers and I wouldn't have gotten so many stupid responses.

I am not building my car by committee so frankly if you don't like the fact I am gonna drive it on the street tough shit. Maybe i am gonna run Power Tour next year with it, that is none of your concern.

The stigma of a thousand horsepower street car kinda confuses me though. In the grand scheme of things with modern fuel injection, over the shelf turbo kits, and mail order 550+ci engines a 900-1000hp street car ain't shit in this day and age.

Hell Scott Keplienger drove his Camaro from IN to Beloit and that thing makes 1800hp when it's set on kill. Don't even say "oh it only ran 8.xxx I worked on the car and he refuses to puta funny car cage in it so he keeps it dialed back to around 1300.

So grow the hell up crawl out from under the rock you been hiding under since 1984 and keep your mouth shut if you have nothing constructive to add to this thread.

But Eric, you know the answer. Of course it will lose power. Maybe not much but it will lose some! You would be adding a restriction.

When you reference the Turbo guys you are comparing your apples to their oranges. Big diff between your 960 and Scott's 1800. Not to mention you are using an OFF THE SHELF HEADER! How wouldn't there be a restriction??????

Who said anything about caring where you drive it? It's YOUR car, it's only advice.....

I went back and edited the title of the post for those who read the original title but we're too lazy to read the context of the first post before posting smart ass stuff trying to make me look bad.

I know it's a compromise everyone does. I was looking for advice on how or what people used to minimize the loss, but it seems other than a few most wanted to try and take the opportunity to try and make someone look bad when they were the ones who looked bad because it was obvious they never read beyond the title of the thread before making a smartassed post.

QtrWarrior wrote:

bigblok2000ranger wrote:Wow the level of stupidity and immaturity in this place never ceases to amaze me.

Obviously there will be some loss but I was looking for minimal losses. Perhaps I should have said the class I plan on racing in requires mufflers and I wouldn't have gotten so many stupid responses.

I am not building my car by committee so frankly if you don't like the fact I am gonna drive it on the street tough shit. Maybe i am gonna run Power Tour next year with it, that is none of your concern.

The stigma of a thousand horsepower street car kinda confuses me though. In the grand scheme of things with modern fuel injection, over the shelf turbo kits, and mail order 550+ci engines a 900-1000hp street car ain't shit in this day and age.

Hell Scott Keplienger drove his Camaro from IN to Beloit and that thing makes 1800hp when it's set on kill. Don't even say "oh it only ran 8.xxx I worked on the car and he refuses to puta funny car cage in it so he keeps it dialed back to around 1300.

So grow the hell up crawl out from under the rock you been hiding under since 1984 and keep your mouth shut if you have nothing constructive to add to this thread.

Why are you so upset ???  
Most of the posts have been informative, unless I missed something ??

Here are the facts.. and I have  built "street cars " just like this...

1) No 2 ways about it, you are going to lose some HP and Torque... The idea is to minimize it..
2) The exhaust is going to add extra weight...
3) As with all dual purpose cars, it's all about the compromise between "the good" vs "the bad".

Seems part of the problem is you're not getting the answer you want, that you already have.......JMHO..
    You just have to decide what you can live with...

No sir my problem isa bunch of people ruining a thread that read the title formed a smartassed comment then we're too lazy to read the context of the first post before posting said commeny.

Quit your dang whining, this isn't anything you personally haven't done in other threads.

As big as practical and packagable. Only as long as neccessary, I myself wouldnt worry about trying to package a x pipe. Its probly more trouble than its worth.

We have lost as much as 10hp peak with mufflers and a balance pipe. But gains of almost 45lbs with all this also.

schmitty wrote:Quit your dang whining, this isn't anything you personally haven't done in other threads.

Would you care to share some examples with the class?

Eric I just bought a Dynamax Bullet Muffler from Summit they are $49 might be a good choice if you looking for a cheaper muffler. I am going to cut it in half and make 2 shorty mufflers out of it to put on my collectors where they exit the fenders to help lower the DBs. They are pretty slick on the inside with just holes so the should upset the exhaust to bad. Here is a couple of pics of the one I have it is 16 1/2'' L x 4'' ID x 12''L 5'' OD on the case.

Sidepipes ftw...

richter69 wrote:Sidepipes ftw...

Can't have Sidepipes without fuzzy dice hanging off the rear view mirror and I don't have one of those.

69F100 wrote:Eric I just bought a Dynamax Bullet Muffler from Summit they are $49 might be a good choice if you looking for a cheaper muffler. I am going to cut it in half and make 2 shorty mufflers out of it to put on my collectors where they exit the fenders to help lower the DBs. They are pretty slick on the inside with just holes so the should upset the exhaust to bad. Here is a couple of pics of the one I have it is 16 1/2'' L x 4'' ID x 12''L 5'' OD on the case.

Hmm. The local roundy round place has some short bullet style mufflers in 4" and 5" maybe I could but weld a set onto my collectors and add some turndowns for a nice package.

Eric,is there a DB limit or does the rules just say mufflers required?

I have a nice set of 4 inch magna flows. They are the short version. I'll take a 100.00 for both of them.

I run a full 4 inch  exhaust over the axle and have tails at the rear valance on my Mustang. The mufflers are Flowmaster 44s, the motor is an SCJ head 580 and it costs almost .10 in the 1/4 to run it. It doesnt have an x pipe and with that pipe size under the car there would be ground clearance issues. The car goes consistent 9.35s in bad air and has been 9.26 in good air on motor. I know you were looking for a comparison with more power. The car gets some street use so I leave the exhaust on.

bbf-falcon wrote:Eric,is there a DB limit or does the rules just say mufflers required?

No db limit. At this time mufflers are not required but the idiots that built houses next to the track are pushing for them so covering my butt ahead of time.

I may do a little grudge racing and having exhaust may help me try to convince some schmuck it's a street car...

... Now if I can figure out how to hide the tunnel ram and dominators.

Dave De wrote:I run a full 4 inch  exhaust over the axle and have tails at the rear valance on my Mustang. The mufflers are Flowmaster 44s, the motor is an SCJ head 580 and it costs almost .10 in the 1/4 to run it. It doesnt have an x pipe and with that pipe size under the car there would be ground clearance issues. The car goes consistent 9.35s in bad air and has been 9.26 in good air on motor. I know you were looking for a comparison with more power. The car gets some street use so I leave the exhaust on.

Thank you for the input