A Nissan Sentra Forum banner

1 - 8 of 8 Posts

·
Registered
Joined
·
6 Posts
Discussion Starter #1
Hey all, i know i don't post much (really at all) but thought I would post my findings on here to potentially help others. My review is not meant to rant or rave about the Intake Plenum, just pure facts with dyno sheets and tune to support.

The GREEN line includes the following mods on the car:
NISMO CAI
SSA Header
Megan midpipe
Apexi WS2 catback
JWT cams
Professional tune by UMS Tuning via UniChip

The BLUE line includes the following mods on the car:
NISMO CAI
SSA Header
Megan midpipe
Apexi WS2 catback
JWT cams
2JR Hi-Power Intake Plenum-Full Kit
Professional tune by UMS Tuning via UpRev

IntakeManifold.jpg
 

·
Registered
Joined
·
19,790 Posts
thats a considerable difference
and honestly i experienced the same thing


however
unichip vs uprev

not saying this is so
as my dyno proves what your saying here
and i used uprev pre and post


but the tuning capabilities, esp with aftermarket cams, with uprev
far exceeds the unichip

and could account for much of the power gains


aside from the scientific nonsense above

everyone i know, comments on this power increase at usable rpms

and joe uses this on the race car
nuff said

but omg
uprev does great stuff for us
compared to safc type devices
 

·
Registered
Joined
·
6 Posts
Discussion Starter #3
I honestly don't think I need the power gain at 2750 RPM, I would have much rather kept the power I gave up and also saved myself the $750 the manifold cost me. IMO the power in the upper revs is more useful (how much time do you actually spend at low RPM?)

Agreed Uprev is a great product
 

·
Registered
Joined
·
575 Posts
I honestly don't think I need the power gain at 2750 RPM, I would have much rather kept the power I gave up and also saved myself the $750 the manifold cost me. IMO the power in the upper revs is more useful (how much time do you actually spend at low RPM?)

Agreed Uprev is a great product
Wait..
the original post says green vs blue, but there's no green. It's yellow and blue. So I'm gonna assume blue is still with the new plenum.

But the blue line has gains everywhere, except the 2.5k-3.1k rpm region; Which you state yourself is not as useful as the upper revs.
And in the upper rev range of 5.5+ rpm the blue makes 10ish hp/tq more.

So are you confusing the colors in actuality or in your post? Because my untuned butt dyno agrees with the plenum having that tq valley around 2.7k rpm.

Edit: Just saw your For Sale post with the other dyno image.
So yea, plenum has massive midrange gains and a little at the top. Literally only gains at rpms above 3.2k rpm.
 

·
Super Moderator
Joined
·
20,851 Posts
@SeR0tt2 he seems to be saying the opposite. The one with all the gains he says is without the plenum or Uprev. Which I am finding absolutely shocking. Kinda gotta wonder if the tuner knows how to use Uprev honestly. It's just so strange. It looks like the opposite of what should have happened. Maybe he posted the wrong dyno sheet or something idk. Shocking.

@v01canic what's up with this man? Your post doesn't make sense. There's yellow and blue lines. And in your for sale post that dyno, with Unichip and no plenum looks like the blue line on this one, but in your post here you say the blue line is with the plenum and Uprev. Please fix this for us. It's too confusing. Did you post the dyno you meant to post? Here and in your for sale post?

I am not gonna argue with your dyno if it's how you say. Just at the moment it is very confusing.
 

·
Registered
Joined
·
19,790 Posts
if you overlay his 1st dyno with mine
the blue line matches the plenum

the man said it
"massive midrange tq"

however the ported b15 intake gave a 7hp advantage at the top end

for drag racing obviously that was important
but i hated that car on the street

no power down low, 20 ftlb less total tq


on the street the 194ft lb tq,, the plenum helped make
was a pleasure
[vs 173 for the ported b15 intake]

one of the most fun, low power cars, i have driven

so if your an auto-xer, beginning or intermediate RR, or a sport street person
go plenum

expert RR, drag racers, top end boys
go ported or stock b15 intake

easy





two set ups here imo really shine

for street
jwtS1 cams, plenum, medusa or race header, 2.5 side exhaust
uprev tuned

total fun mtn car, easy to drive fast
low 14s on the drag strip

track
2jr cams, ported manifold, 11.5 pistons. race header, 3" side exhaust
uprev
believe me this setup on the drag strip in a 2750 lb car
is a mid 13sec car, on slicks

what do you want
for the 1st time we have real choices

super tough streetcar
\all out racer

or as i did now, somthing in between, race car tuned for the street
old fashioned street/strip car with street emphasis




yes, i have been lucky enough to have sampled the qr engine in every form
from stock thru both types of na builds to turbo

and this is just my personal experience with these motors
 

·
Registered
Joined
·
19,790 Posts
I honestly don't think I need the power gain at 2750 RPM, I would have much rather kept the power I gave up and also saved myself the $750 the manifold cost me. IMO the power in the upper revs is more useful (how much time do you actually spend at low RPM?)

Agreed Uprev is a great product
if your like me
we like to wind out these motors
and like a good top end rush

we like to keep the motor above 3000 rpm
where it seems to come alive

our cars are more for the experience
than daily transportation

an adventure rather than a task accomplished


thus when i was told
180hp with plenum, i about cried
lol

enter 2jr cams and uprev cam phasing
the plenum can come very close or match the ported manifold

with higher lift cams
and retune

you will be happy i think

needs the 2jr cam designed for it and the 3" race header and exhaust


on a built, true race, motor
this combo made the highest numbers i have ever seen,
for an na qr
 

·
Registered
Joined
·
19,790 Posts
disclaimer
on turbo cars i have little experience

i only have road test material on my car no plenum and joe's car with plenum

and both make such overwhelming tq
i can't use all of it
so a rather moot point,except for the track

with competition tires on both cars
the acceleration rate is beyond most people's ability to handle, in tight spaces

i could not keep mine straight on a full power launch for ages
mine will run 12s
joes is low 11s
[10s if setup as a drag car]

imo
 
1 - 8 of 8 Posts
Top