Least rasp, deepest CBE paired with PPE LTH?

SS_Firehawk · 10-17-2013, 02:15 PM

Mine doesn't rasp with with a HFC at the Y pipe. (It does with cold exhaust pipes). Some guys don't want to cut into their exhaust. I advised another guy to add a resonated Y pipe and that worked well for him. The E370 has a resonated X chamber and doesn't rasp, which makes sense. Glad the combo works cor the OP and I want to hear a vid

luigi90210 · 10-17-2013, 08:21 PM

Quote:

Originally Posted by synolimit

Not true. Adding a Helmholtz in the X, Y, H pipe will completely kill the rasp. You could add inline resonators there too but it won't kill it 100% just like RTP's won't.

ok i didnt know that, thank you for the info

i dont really look into killing rasp on this car too much since i love the way rasp sounds, and the only other car i did modify is my eclipse, which doesnt rasp since its turbo(or if it does, i dont hear it over turbo spool sounds)

MarlinZ · 10-18-2013, 12:45 PM

Quote:

Originally Posted by SS_Firehawk

Mine doesn't rasp with with a HFC at the Y pipe. (It does with cold exhaust pipes). Some guys don't want to cut into their exhaust. I advised another guy to add a resonated Y pipe and that worked well for him. The E370 has a resonated X chamber and doesn't rasp, which makes sense. Glad the combo works cor the OP and I want to hear a vid

I'll try to get one up for you Firehawk!!

Jordo! · 10-25-2013, 05:46 PM

Quote:

Originally Posted by MarlinZ

I'll try to get one up for you Firehawk!!

I'm finally having my PPE headers installed next week. Rest of the exhaust will be take off Nismo, with factory H pipe.

Anyone have any thoughts on whether I should expect hissing at decel or the farting sounds common to unresonated TP's around 2.5 - 3K?

I'm hoping not...

The vids of Firehawk's set up sounded great, but I'm not sure whether that was before or after the HFC was included.

SS_Firehawk · 10-25-2013, 07:13 PM

I have a HFC in mine. It might rasp, depends on your exhaust. what exhaust do you have Jordo?

Sh0velMan · 10-25-2013, 08:29 PM

Quote:

Originally Posted by Jordo!

I'm finally having my PPE headers installed next week. Rest of the exhaust will be take off Nismo, with factory H pipe.

Anyone have any thoughts on whether I should expect hissing at decel or the farting sounds common to unresonated TP's around 2.5 - 3K?

I'm hoping not...

The vids of Firehawk's set up sounded great, but I'm not sure whether that was before or after the HFC was included.

I had this exact setup for over a year.

You will be able to detect the decel hiss.

There won't be any rasp or any other unpleasant sounds. It sounds almost factory.

Hope this helps.

SS_Firehawk · 10-25-2013, 11:54 PM

Lol, I'm retarded, shows how well I read.

Jordo! · 10-25-2013, 11:55 PM

Quote:

Originally Posted by SS_Firehawk

I have a HFC in mine. It might rasp, depends on your exhaust. what exhaust do you have Jordo?

Take off Nismo

Quote:

Originally Posted by Sh0velMan

I had this exact setup for over a year.

You will be able to detect the decel hiss.

There won't be any rasp or any other unpleasant sounds. It sounds almost factory.

Hope this helps.

Hmm. Interesting. So a bit of hiss but no real rasp. This was with OEM H-pipe?

On my previous Z, I tried a bigger diameter Y pipe and the hiss drove me crazy. Got rid of it in under a week.

Hopefully, it won't be quite as bad

Thanks for the info

Sh0velMan · 10-26-2013, 07:25 AM

Quote:

Originally Posted by Jordo!

Take off Nismo

Hmm. Interesting. So a bit of hiss but no real rasp. This was with OEM H-pipe?

On my previous Z, I tried a bigger diameter Y pipe and the hiss drove me crazy. Got rid of it in under a week.

Hopefully, it won't be quite as bad

Thanks for the info

Yes, factory H pipe.

The hiss will be there, I did not find it to be bothersome, even when the car was still being street driven regularly. It isn't super loud like with an aftermarket exhaust + LTH.

But that hiss will be basically the only hint to bystanders that there's anything non-stock about the exhaust. That Nismo system is pretty damned quiet while still making very respectable power.

Jordo! · 10-26-2013, 12:56 PM

Quote:

Originally Posted by Sh0velMan

Yes, factory H pipe.

The hiss will be there, I did not find it to be bothersome, even when the car was still being street driven regularly. It isn't super loud like with an aftermarket exhaust + LTH.

But that hiss will be basically the only hint to bystanders that there's anything non-stock about the exhaust. That Nismo system is pretty damned quiet while still making very respectable power.

Sounds like I should be happy with it then -- thanks!

KB2 · 10-27-2013, 05:13 PM

Any thoughts on lth with hks exhaust?

nismo13807 · 11-05-2013, 02:51 PM

anyone have a sound clip of ppe lth + 12 or 18 res. cf FI cbe ?

10-17-2013, 02:15 PM	#61 (permalink)
SS_Firehawk Premium Member Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7334	Mine doesn't rasp with with a HFC at the Y pipe. (It does with cold exhaust pipes). Some guys don't want to cut into their exhaust. I advised another guy to add a resonated Y pipe and that worked well for him. The E370 has a resonated X chamber and doesn't rasp, which makes sense. Glad the combo works cor the OP and I want to hear a vid __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction

10-25-2013, 07:13 PM	#65 (permalink)
SS_Firehawk Premium Member Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7334	I have a HFC in mine. It might rasp, depends on your exhaust. what exhaust do you have Jordo? __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction

10-25-2013, 11:54 PM	#67 (permalink)
SS_Firehawk Premium Member Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7334	Lol, I'm retarded, shows how well I read. __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction

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