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How much power am I giving up by going with an RB exhaust over something fancy? ARTech can do something for me soon, but I just don't have the time.
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Why won't the turbo exhaust work for now? Is it just too loud? I wonder if you could have Abe weld up a cat. But instead of a cat it's a small resonator to cut down the noise without the power sacrifice of a real converter. Also, you could reuse your turbo exhaust on your DD turbo'd car once you get something more permanent for the track car.
Just a thought. Although, you might not have time for that either. |
Originally Posted by hustler
(Post 920895)
How much power am I giving up by going with an RB exhaust over something fancy? ARTech can do something for me soon, but I just don't have the time.
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Originally Posted by hustler
(Post 920895)
How much power am I giving up by going with an RB exhaust over something fancy? ARTech can do something for me soon, but I just don't have the time.
FWIW, we just installed one of the new Borla race exhausts with optional rear muffler. Very quiet and nice tone. It's reasonably light but a bit too expensive for most. They have a kit for every year 90-05. We'll add it to the website. but I'm grinding on Borla to maybe lower the SRP a bit to bring it more inline with the other exhausts on the market. |
A turbo muffler without turbo or cat..... 97.9dB. It isn't too pleasant and there's a loss of low-end tq lol.
No time to have a muffler shop do a quick fab of 2.25" piping to a resonator in place of the muffler? Should stay under 94dB with a high flow cat or another res. Should only weigh around 13lbs as well. |
Sub'd for awesome small penor N/A build!
Originally Posted by owenwilliams
(Post 920685)
Regarding water in the intake, I've heard extremely mixed views.
A number of s2ki.com forum members seem to have 'heard of a guy' who hydrolocked their engine. One member is sure that his CAI-equipped engine bogged and then blew after he splashed through a big puddle on the street. However, I've never encountered such horror stories anywhere else on the web, which makes me wonder if this hydrolock phenomenon is just an idiosyncrasy of this particular forum. Another example: my friend once told me he was penalised during an intake design module of his motorsports engineering course for positioning the trial vehicle's air filter in an exposed position. So, edumacated people do not recommend it.
Originally Posted by flier129
(Post 920944)
A turbo muffler without turbo or cat..... 97.9dB. It isn't too pleasant and there's a loss of low-end tq lol.
No time to have a muffler shop do a quick fab of 2.25" piping to a resonator in place of the muffler? Should stay under 94dB with a high flow cat or another res. Should only weigh around 13lbs as well. |
I had an Springfield Dyno exhaust on that motor and the people at HHR said it was too loud at 117dB, but I call BS because the person doing it stood only 20 ft behind it. They told me to floor it in neutral and with the light weight of the motor it quickly shot all the way up and got very loud very quickly. It scared the person with the meter enough that they ducked away.
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Well I have the intake but TDR did not have the RB rear section. Should I just order one|?
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Originally Posted by rharris19
(Post 920956)
I had an Springfield Dyno exhaust on that motor and the people at HHR said it was too loud at 117dB, but I call BS because the person doing it stood only 20 ft behind it. They told me to floor it in neutral and with the light weight of the motor it quickly shot all the way up and got very loud very quickly. It scared the person with the meter enough that they ducked away.
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Fwiw, I ran an rb header, no cat(straight pipe, mandrel bent), with a single 14" spiral flow resonator in place of my muffler for many years. Measured 92-93 db at every event. Sounded fantastic, not too loud in the cab, and cost me about 25$ from the local exhaust shop. I liked it so much that I keep three in my garage at all times, lol.
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Originally Posted by glade
(Post 921063)
Fwiw, I ran an rb header, no cat(straight pipe, mandrel bent), with a single 14" spiral flow resonator in place of my muffler for many years. Measured 92-93 db at every event. Sounded fantastic, not too loud in the cab, and cost me about 25$ from the local exhaust shop. I liked it so much that I keep three in my garage at all times, lol.
For reference, a bone stock 49 state NB1 is about 92db. |
Flowmaster hushpower muffler, great flow and sound. Mine, a 2.5" weighs 7lbs i think.
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Originally Posted by glade
(Post 921063)
Fwiw, I ran an rb header, no cat(straight pipe, mandrel bent), with a single 14" spiral flow resonator in place of my muffler for many years. Measured 92-93 db at every event. Sounded fantastic, not too loud in the cab, and cost me about 25$ from the local exhaust shop. I liked it so much that I keep three in my garage at all times, lol.
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Jason at Enthuza says his XR light-weight puts NBs at 91-92 dB. So take out the cat and the mid-pipe muffler NBs have and you're well over 99dB.... |
trey if it's an emergency I'll loan you my 2.5" cat back...no res and a big magnaflow muffler. I'd need it back sometime in the next 6-8 weeks though :)
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This is with the 6 speed and 3.63, the gears are way to big, but the bitch is fast.
It revs fast too: |
Originally Posted by miata_racer
(Post 921123)
trey if it's an emergency I'll loan you my 2.5" cat back...no res and a big magnaflow muffler. I'd need it back sometime in the next 6-8 weeks though :)
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Baller intake is baller.
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Which plugs should I run?
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