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Frontyfan
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| Posted: Feb 23 2006 at 3:03am | IP Logged
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ok just a quick question for those of you who have modded your V6
frontys, i'm just wondering in the end once you were done what kind of
gains in numbers did you see or do you estimate if you didn't dyno your
machine, granted that most of you i'm sure don't dyno your truck every
time you have added something to it, but in your estimation what kind
of success did you have with these mods and what are they.
thanks
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jordan
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| Posted: Feb 24 2006 at 12:26am | IP Logged
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here is a link to a very knowledgable guys website
http://www.jackphelps.com/frontier/frontier.htm
he has an excellent dyno section showing the increases as mods were added.
hope this helps
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kcidmil
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HI! My name is Ben and I have Car ADD.
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| Posted: Feb 24 2006 at 7:00am | IP Logged
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That's a good link, you can also use the article I placed in the stickies "Basics of adding Horse Power" A very good article.
http://www.nissanfrontier.org/forum_posts.asp?TID=124&PN =1
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Frontyfan
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| Posted: Feb 25 2006 at 10:13am | IP Logged
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appreciate it guys i'll take a look at it, one other question, i know
that when doing an exhaust that if you go with pipes that are too big
and allow too much flow that you can jack some of your low end grunt,
so if you had a custom exhaust done with maybe just slightly bigger
than stock and ran two mufflers and then out the OEM exit point, you
coudl still see an increase w/o dicking too much with your low end
grunt correct?
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kcidmil
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| Posted: Feb 25 2006 at 10:26am | IP Logged
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Actaully that could hurt your power. Cause now you're causing a restriction point in the exhaust, and at no less the very end of the line. So this will cause a slgiht blockage for the WHOLE system.
Just run 2.5", 2.25" pipe, you'll be fine. OEM size is very restrictive, and mainly done for emmision laws, and to save money.
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Indy NISMO
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| Posted: Feb 25 2006 at 10:34am | IP Logged
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You may want to check out this FAQ from the MagnaFlow website:
Why Bigger isn't always better...
They explain why bigger pipes don't always mean better results and have
a chart that tells the optimum pipe size for an engine's
displacement. The also don't recommend going more than 1/2"
larger than stock in pipe size!
I'm trying to organize a group buy for the JBA system, it looks very
promising, and they have applied these basic principles to their
design. I don't know the Group Buy price yet, we're still working
on that, but it may be worth considering, depending on what a custom
system will cost you. Here's the GB link!
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kcidmil
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HI! My name is Ben and I have Car ADD.
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| Posted: Feb 25 2006 at 12:04pm | IP Logged
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wow... right along the 2 numbers I gave him... 
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Frontyfan
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| Posted: Feb 25 2006 at 1:25pm | IP Logged
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sorry guys i think you misunderstood me, i in no way intended to
suggest to run duals from the headers into one pipe at the OEM exit.
what i meant was to run two dual pipes with 2 cats as it already has, 2
mufflers, but have them exit in the same location as it does stock..but
with two pipes kinda like the custom tubes products exhaust exits, tho
this would be a true dual rather than having the two pipes meet into
one muffler, but keeping the tubes the same size as stock ones, would
that increase power since you wouldn't have the restriction at the
Y-pipe but avoid peeling away too much low end grunt by keeping pipes
same size as stock, i am wondering because you would naturally increase
flow because you have two free pipes even tho you are keeping same
size, if not just slightly larger as you suggesed. thanks.
also my fronty is an 01 so would that group buy offer apply to me or is that for new frontys only?
speaking of exhaust, i was interested in reading a post from
reverendbiker on another link where he was dyno'ing his mods and the
one that caught me as interesting was his 05 fronty with the gibson
exhaust and those results and then combined with the AFE CAI, was very
impressive gains to say the least even with the % loss calculation at
the rear wheels.
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Indy NISMO
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| Posted: Feb 25 2006 at 2:54pm | IP Logged
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Frontyfan,
The group buy is for the 05/06 Frontier with the V6, I didn't remember
the year of your truck. OkieScot, a member of another forum has
almost the exact system you describe except he's using a duel in duel
out muffler and running both pipes through one free flowing
muffler. I don't think he's noticed any loss of low end.
He's on NissanForums.com and ClubFrontier.og if you searc for his
screen name he has posted pictures in the past.
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2005 Aztec Red NISMO LE 4X4 KC
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Nissan Frontier Forums : Frontier Modifications (Performance & Looks)
Topic: end power gains, numbers not feel
