Nismo header independent dyno...u will be surprised
01-18-2004, 05:08 PM
#21
Originally posted by SteaminRice
Performance guys-- would you recommend cats first or headers? Congrats Daytona on the great dyno-- you got me damn near decided on doing a mod i didn't plan on!
Performance guys-- would you recommend cats first or headers? Congrats Daytona on the great dyno-- you got me damn near decided on doing a mod i didn't plan on!
01-18-2004, 05:31 PM
#22
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Originally posted by zxsaint
I'd be curious to see how hf cats would do on your setup, but I think the next move should be a crank pulley. Should put your whole curve up a notch, and you'll be probably where i'm at in terms of numbers. At $200 it's a no-brainer.
I'd be curious to see how hf cats would do on your setup, but I think the next move should be a crank pulley. Should put your whole curve up a notch, and you'll be probably where i'm at in terms of numbers. At $200 it's a no-brainer.
will be installing hi flow cats as soon as they get here, and maybe will go with the underdrive pulley next....but i gotta save money first...anyone in so cal interested in a detail for their cars??
01-18-2004, 10:34 PM
#23
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Re: RT CATS
Originally posted by GATORZ
This is slightly off the thread topic. Are there still concerns about running lean with the rt cats. Want to get these but worried about the running lean thing. On the dyno above is it running rich? I thought the 12 to 13 was best.
Thanks, Dan
This is slightly off the thread topic. Are there still concerns about running lean with the rt cats. Want to get these but worried about the running lean thing. On the dyno above is it running rich? I thought the 12 to 13 was best.
Thanks, Dan
I'm just worried/wondering about the same thing. Hoping someone can answer this, that's all
great gains on the headers btw!
-drew
01-19-2004, 05:21 PM
#24
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Originally posted by Mike Wazowski
which would only benefit FI cars IMHO.
which would only benefit FI cars IMHO.
I don't want to hijack so I started new thread:
https://my350z.com/forum/showthread....threadid=57449
01-19-2004, 05:26 PM
#25
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I don't think you really need to worry about going lean with just cats/test pipes or just a plenum. But when you combine the two I think you may run into some pingage which you don't want.
01-19-2004, 05:41 PM
#26
high flow cats first... much cheeper... will give close to the same power.. at half the price...
avaialbe at http://www.performancenissanparts.com
special forum price still applies...
avaialbe at http://www.performancenissanparts.com
special forum price still applies...
01-19-2004, 07:45 PM
#27
Originally posted by FLY BY Z
I don't think you really need to worry about going lean with just cats/test pipes or just a plenum. But when you combine the two I think you may run into some pingage which you don't want.
I don't think you really need to worry about going lean with just cats/test pipes or just a plenum. But when you combine the two I think you may run into some pingage which you don't want.
01-19-2004, 07:58 PM
#28
....for your health
I believe that the only ones that have problems with the RT cats running lean are those who had an ECU flash prior to adding the cats. This can easily be corrected by a reflash.
01-20-2004, 04:48 AM
#31
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Originally posted by FLY BY Z
I don't think you really need to worry about going lean with just cats/test pipes or just a plenum. But when you combine the two I think you may run into some pingage which you don't want.
I don't think you really need to worry about going lean with just cats/test pipes or just a plenum. But when you combine the two I think you may run into some pingage which you don't want.
Plenum, headers, cats, and exhaust... Zero ping.
01-20-2004, 07:41 AM
#32
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Originally posted by PhoenixINX
On three cars now...
Plenum, headers, cats, and exhaust... Zero ping.
On three cars now...
Plenum, headers, cats, and exhaust... Zero ping.
01-20-2004, 07:47 AM
#33
Originally posted by FLY BY Z
like i asked before, what is the AF ratio on these cars with no ECU flash.
like i asked before, what is the AF ratio on these cars with no ECU flash.
Originally posted by FLY BY Z
I don't think you really need to worry about going lean with just cats/test pipes or just a plenum. But when you combine the two I think you may run into some pingage which you don't want.
I don't think you really need to worry about going lean with just cats/test pipes or just a plenum. But when you combine the two I think you may run into some pingage which you don't want.
We have not seen this directly as most of us here run stock cats, test pipes, or Crawford cats.
Last edited by VandyZ; 01-20-2004 at 07:55 AM.
01-20-2004, 01:57 PM
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Re: Re: Nismo header independent dyno...u will be surprised
Originally posted by hfm
Wow. Best gains I've seen for headers. In fact, even better than testpipes.
Lucky you!
Wow. Best gains I've seen for headers. In fact, even better than testpipes.
Lucky you!
thanks
and at the price including install, i happy with the gains...now i want more
01-20-2004, 03:48 PM
#38
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yeah, i'll b interested in seein if u get gains from other exhaust mods that should reduce the back pressure. like it was said before, mayb u won't see much if the nismo headers r designed for use with some. we shall see.
