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Best or next performance mod to get without adding a lot more sound???

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Old Nov 12, 2003 | 05:48 PM
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Default Best or next performance mod to get without adding a lot more sound???

So far I have this:
Tanabe SuperMedallion exhaust
GruppeM CF intake
HKS Circle earthing kit
I want more power but dont want much more sound considering my Tanabe is pretty loud to begin with. What can I do next?
Crawford Plenum?
Random Tech Hi flo's??? do they increase exhaust noise substiantly?

Thanks
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Old Nov 12, 2003 | 06:41 PM
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any cat replacement will make your car significantly louder
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Old Nov 12, 2003 | 06:46 PM
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Originally posted by Mike Wazowski
any cat replacement will make your car significantly louder
Even just a High Flo cat?
What about the plenum?
How about the UR pulleys?
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Old Nov 12, 2003 | 09:07 PM
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I would go with the UR Pulleys if you do not want to affect the sound. Another mod would be the Technosquare ECU, but if you anticipate wanting high flow cats or the Plenum then I would do the ECU after those mods.
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Old Nov 12, 2003 | 10:38 PM
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Random Technology Cats add about 2dB of loudness in the cab. The human ear starts hearing a difference in 3dB changes (if you have good hearing).

Check out this thread for more on the randoms from a customer.

https://my350z.com/forum/showthread....threadid=49569
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Old Nov 13, 2003 | 12:56 PM
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Originally posted by zzzya
I would go with the UR Pulleys if you do not want to affect the sound. Another mod would be the Technosquare ECU, but if you anticipate wanting high flow cats or the Plenum then I would do the ECU after those mods.
Hmmm I think it will be either the UR pulleys or the Plenum....

any other ideas?
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Old Nov 13, 2003 | 12:59 PM
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350EVO 3.9 final drive!
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Old Nov 13, 2003 | 02:37 PM
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Originally posted by dwnshift
350EVO 3.9 final drive!
does that mean alot quicker exelleration?
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Old Nov 13, 2003 | 02:37 PM
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Originally posted by 350z4steve
does that mean alot quicker exelleration?
or excellent acceleration?
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Old Nov 13, 2003 | 06:45 PM
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Best bang for the $$ would be nitrous
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Old Nov 13, 2003 | 06:47 PM
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Originally posted by 350z4steve
does that mean alot quicker exelleration?
Yes
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Old Nov 13, 2003 | 08:03 PM
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YEs...nitrous....

otherwise HKS DL Ignition and Iridium Sparkplugs or a lightweight flywheel, right gang?
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Old Nov 14, 2003 | 10:48 AM
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UR Crank Pulley is one of the best bang for buck mods, period. $200 for 7-10rwhp across the rpm range and quicker revs.
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Old Nov 14, 2003 | 11:11 PM
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Originally posted by zxsaint
UR Crank Pulley is one of the best bang for buck mods, period. $200 for 7-10rwhp across the rpm range and quicker revs.
AGREED!!!
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Old Nov 15, 2003 | 03:38 AM
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Hey there Coz! glad to see your around.

I bought a JWT ECU for my Z32 from Coz a while back for a great price and easy core exchange... looking forward to getting one for my Z33 (when it's available).
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Old Nov 15, 2003 | 04:48 AM
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I agree the single cheapest improvement is a UR pulley (crank) (did the whole set for looks).

Ecu tuning is required if you change the air intake and exhaust a lot. All your intake and exhaust mods have to be completed before you do the ECU.

With all the air mods on my car we had to develop new maps to richen the A/F from 14.7 back to 13.s at the higher revs. Will dyno again today.
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Old Nov 15, 2003 | 01:15 PM
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Originally posted by Mr Twisted
I agree the single cheapest improvement is a UR pulley (crank) (did the whole set for looks).

Ecu tuning is required if you change the air intake and exhaust a lot. All your intake and exhaust mods have to be completed before you do the ECU.

With all the air mods on my car we had to develop new maps to richen the A/F from 14.7 back to 13.s at the higher revs. Will dyno again today.
Yeah Im getting the UR pulley this week I believe.

Make sure to post up the Dyno results
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Old Nov 15, 2003 | 01:27 PM
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Originally posted by zxsaint
UR Crank Pulley is one of the best bang for buck mods, period. $200 for 7-10rwhp across the rpm range and quicker revs.
how does this affect the drivability of the car? easier to stall?
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Old Nov 15, 2003 | 02:17 PM
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Originally posted by zxsaint
UR Crank Pulley is one of the best bang for buck mods, period. $200 for 7-10rwhp across the rpm range and quicker revs.
how does this affect the drivability of the car? easier to stall?
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Old Nov 15, 2003 | 03:30 PM
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No stalling but steering is al liittle heavier
not bad just noticeable. I have some issues still on tuning will post dyno when I resolve those issues. Got 245+ in the rain still not good enough to talk about.
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