Racing Beat exhaust dyno compairisons
#276
here we go again
iTrader: (3)
ok first thanks goes to Hyper4mance2k for this very usefull post.
I'm in the middle of a budget race buld. I know , I know budget and race don't mix. But hell I've just got to get this thing going, and I figure I will replace with the right stuff alone the way as it breaks or money falls in my lap.
SO I'm going to copy some of his design. The collector is a close basic shape. But I'm going from a RB race header to a 2.5" to a 3" Pre muff then dump it before the axle.
I figure this will not be as loud as the Stock header and straight pipe it has now (it was a Spec7 car)
But I'm still not sure what pre muff to use. At first I was looking at the Dyna max. But after this thead, I'll be looking more. I had been looking at the Burns Stainless http://www.burnsstainless.com/3to35.aspx . But was wondering if anyone had tryed them? Also...ouch $$.
I'm in the middle of a budget race buld. I know , I know budget and race don't mix. But hell I've just got to get this thing going, and I figure I will replace with the right stuff alone the way as it breaks or money falls in my lap.
SO I'm going to copy some of his design. The collector is a close basic shape. But I'm going from a RB race header to a 2.5" to a 3" Pre muff then dump it before the axle.
I figure this will not be as loud as the Stock header and straight pipe it has now (it was a Spec7 car)
But I'm still not sure what pre muff to use. At first I was looking at the Dyna max. But after this thead, I'll be looking more. I had been looking at the Burns Stainless http://www.burnsstainless.com/3to35.aspx . But was wondering if anyone had tryed them? Also...ouch $$.
#277
here we go again
iTrader: (3)
[QUOTE=Gian;10459519]ok first thanks goes to Hyper4mance2k for this very usefull post.QUOTE]
I ment to say.... Thanks for this thead.
[QUOTE=Gian;10459519]SO I'm going to copy some of his design. The collector is a close basic shape. But I'm going from a RB race header to a 2.5" to a 3" Pre muff then dump it before the axle.[QUOTE]
And...... It's going to go from 2.5 to 3 and back to 2.5 then dump it before the axle
I ment to say.... Thanks for this thead.
[QUOTE=Gian;10459519]SO I'm going to copy some of his design. The collector is a close basic shape. But I'm going from a RB race header to a 2.5" to a 3" Pre muff then dump it before the axle.[QUOTE]
And...... It's going to go from 2.5 to 3 and back to 2.5 then dump it before the axle
#278
o.O
iTrader: (3)
Agreed. +1 for posting this thread.
I've tried about as many exhaust combo's as you have, but, i'm not really going for power. Mainly looking for TQ., Throttle Response, and Tone most of all. Since my Rex is my DD.
So far the 'Best' setup i've found is my modified exhaust mani to straight pipe with resonator, then just any straight through muffler dumped before the rear axle.
That's not what i'm running now, but, it's what i've found to be best.
Good luck with finding whatever you're trying to find, i'm still looking.
I've tried about as many exhaust combo's as you have, but, i'm not really going for power. Mainly looking for TQ., Throttle Response, and Tone most of all. Since my Rex is my DD.
So far the 'Best' setup i've found is my modified exhaust mani to straight pipe with resonator, then just any straight through muffler dumped before the rear axle.
That's not what i'm running now, but, it's what i've found to be best.
Good luck with finding whatever you're trying to find, i'm still looking.
#280
o.O
iTrader: (3)
But, I'm running a Nikki. So I'm sure we're making around the same power. Although I'm sure you have a muchh lower gear in your car then I, including lower trans ratios. That would Make up for some power
Also, have you thought about running a MFR Lava Rock Muffler? Works Great on my race car.
You could use it as a resonator, although it is considered a muffler, then fill another glasspack style muffler with lava rock material as a rear muffler, I'm not sure what size you'd want to use on all, but I'd think I'd want to go as big as possible, since your porting isn't substantial you're not too concerned about low end torque.
#282
ALLROTOR
iTrader: (2)
I *think* he's refered to his port as a monster port in the past so he's refering to it being bigger then a big steetport. I remeber bc in another thread someone refered to the nikki not being able to keep up...??? with a stock fuel pump...?? Who knows..? I don't discredit anything I read here except when it's just hearsay, but he seems to be driving it as his DD.
#283
here we go again
iTrader: (3)
Agreed. +1 for posting this thread.
I've tried about as many exhaust combo's as you have, but, i'm not really going for power. Mainly looking for TQ., Throttle Response, and Tone most of all. Since my Rex is my DD.
So far the 'Best' setup i've found is my modified exhaust mani to straight pipe with resonator, then just any straight through muffler dumped before the rear axle.
That's not what i'm running now, but, it's what i've found to be best.
Good luck with finding whatever you're trying to find, i'm still looking.
I've tried about as many exhaust combo's as you have, but, i'm not really going for power. Mainly looking for TQ., Throttle Response, and Tone most of all. Since my Rex is my DD.
So far the 'Best' setup i've found is my modified exhaust mani to straight pipe with resonator, then just any straight through muffler dumped before the rear axle.
That's not what i'm running now, but, it's what i've found to be best.
Good luck with finding whatever you're trying to find, i'm still looking.
Right now it's got a stock header and straight 2.5" pipe.
Yes it's ear bleeding happeness at it's best.
#285
o.O
iTrader: (3)
ok first thanks goes to Hyper4mance2k for this very usefull post.
I'm in the middle of a budget race buld. I know , I know budget and race don't mix. But hell I've just got to get this thing going, and I figure I will replace with the right stuff alone the way as it breaks or money falls in my lap.
SO I'm going to copy some of his design. The collector is a close basic shape. But I'm going from a RB race header to a 2.5" to a 3" Pre muff then dump it before the axle.
I figure this will not be as loud as the Stock header and straight pipe it has now (it was a Spec7 car)
But I'm still not sure what pre muff to use. At first I was looking at the Dyna max. But after this thead, I'll be looking more. I had been looking at the Burns Stainless http://www.burnsstainless.com/3to35.aspx . But was wondering if anyone had tryed them? Also...ouch $$.
I'm in the middle of a budget race buld. I know , I know budget and race don't mix. But hell I've just got to get this thing going, and I figure I will replace with the right stuff alone the way as it breaks or money falls in my lap.
SO I'm going to copy some of his design. The collector is a close basic shape. But I'm going from a RB race header to a 2.5" to a 3" Pre muff then dump it before the axle.
I figure this will not be as loud as the Stock header and straight pipe it has now (it was a Spec7 car)
But I'm still not sure what pre muff to use. At first I was looking at the Dyna max. But after this thead, I'll be looking more. I had been looking at the Burns Stainless http://www.burnsstainless.com/3to35.aspx . But was wondering if anyone had tryed them? Also...ouch $$.
But not quite like a MFR lava rock muffler.
#289
Old [Sch|F]ool
The trick to making more than ~170 crank HP with a Nikki is in the intake manifold... even then I have serious doubts about flowing enough air for 240 crank horsepower. The manifold is going to suck for those power levels no matter what you do, it's shaped all wrong.
Now, a Nikki on a modified Holley manifold... maybe. If all ducks are in a row.
Now, a Nikki on a modified Holley manifold... maybe. If all ducks are in a row.
#290
the diabolical one
iTrader: (6)
The trick to making more than ~170 crank HP with a Nikki is in the intake manifold... even then I have serious doubts about flowing enough air for 240 crank horsepower. The manifold is going to suck for those power levels no matter what you do, it's shaped all wrong.
Now, a Nikki on a modified Holley manifold... maybe. If all ducks are in a row.
Now, a Nikki on a modified Holley manifold... maybe. If all ducks are in a row.
#292
o.O
iTrader: (3)
I *think* he's refered to his port as a monster port in the past so he's refering to it being bigger then a big steetport. I remeber bc in another thread someone refered to the nikki not being able to keep up...??? with a stock fuel pump...?? Who knows..? I don't discredit anything I read here except when it's just hearsay, but he seems to be driving it as his DD.
Monster Port.. Yes..
Stock Pump + Weber.. Yes, did it for 4 years and am now running that same pump with my nikki. It sees 8500rpm frequently.
But whatever.. Nobody has to believe me. And everyone can laugh about my Nikki fed Monster Port all they want..
So, since this is an exhaust thread, has anyone tried auger style mufflers? I've given it a lot of thought, thinking about trying it.
#293
o.O
iTrader: (3)
The trick to making more than ~170 crank HP with a Nikki is in the intake manifold... even then I have serious doubts about flowing enough air for 240 crank horsepower. The manifold is going to suck for those power levels no matter what you do, it's shaped all wrong.
Now, a Nikki on a modified Holley manifold... maybe. If all ducks are in a row.
Now, a Nikki on a modified Holley manifold... maybe. If all ducks are in a row.
Now, we all know you can make more then that with a bridgy, but, that's what it says.. I know it's outdated too BTW.
Doesn't say anything about manifolds.
#294
ALLROTOR
iTrader: (2)
Crispin38, I believed you. I did say: "I don't discredit anything unless it's just hearsay, but you seem to be driving it as your DD"
This topic stuck in my mind b/c even tho I've been told to ditch my nikki by many people and throw on one of my other carb set-ups that are just taking up space on my shelf (holley, dellorto, mikuni)... I've always opted not to. I am NOT going to change out my nikki carb until I fully understand it completly inside and out and even then I will prob still keep it... especially since it's kept up fine on my 13B and runs like a champ. I would like to see exactly how far it can go... streetport, bridgeport, nitrous, more nitrous, alot more nitrous. Besides, I love the stock look when I pop the hood. Lately $$$$ has been somewhat tight so turning these daydreams into reality has been a bit slow coming.
RX71king... we can test your manifold on my car if you'd like whenever it's done.
But yes you are right, don't want to hijack this exhaust thread.
This topic stuck in my mind b/c even tho I've been told to ditch my nikki by many people and throw on one of my other carb set-ups that are just taking up space on my shelf (holley, dellorto, mikuni)... I've always opted not to. I am NOT going to change out my nikki carb until I fully understand it completly inside and out and even then I will prob still keep it... especially since it's kept up fine on my 13B and runs like a champ. I would like to see exactly how far it can go... streetport, bridgeport, nitrous, more nitrous, alot more nitrous. Besides, I love the stock look when I pop the hood. Lately $$$$ has been somewhat tight so turning these daydreams into reality has been a bit slow coming.
RX71king... we can test your manifold on my car if you'd like whenever it's done.
But yes you are right, don't want to hijack this exhaust thread.
#296
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,835
Received 2,604 Likes
on
1,847 Posts
i have the stock 12A air cleaner on my PP, and its the FUNNIEST THING EVER. i can roll up with the BRAP BRAP idle, and pop the hood and people standing on the INTAKE side, with the stock FILLED intake ports just hanging out there, and the question i get is
"is the engine stock?"
so i'm going to start answering yes, yes it is
"is the engine stock?"
so i'm going to start answering yes, yes it is
#299
Senior Member
Join Date: Apr 2004
Location: South Jordan UT
Posts: 453
Likes: 0
Received 0 Likes
on
0 Posts
In a recent Grassroots motorsports, they had the Burns mufflers listed as using fiberglass packing. It kinda also said they had full stainless mufflers availiable so I'm not sure if they will hold up well to rotaries.
#300
here we go again
iTrader: (3)
Burns has two types of packing. Glass and/or Stainless scrubble(looks like steel wool) and has a floating core. So it should hold up. I think...lol
But thanks for the GR's info......going to read it now