Want to get 287HP up to 300HP w/ no loss TQ
10-11-2005, 02:31 PM
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Want to get 287HP up to 300HP w/ no loss TQ
OK I have seen Tony's post of the mod he is working on for the 05-06 Rev up motor and I have read with interest the comments and mod list the Alberto uses on his car. I have also seen several other 287HP owners begging for some insight on bolt ons for that motor.
So here is the question: What bolt on mods should I get to make the 287HP match the 300HP of the new motor with NO loss of torque?
I am looking for cost effectiveness, reliability and ease of install. (just like most people). I don't care about huge horsepower gains, just a little more umph and bragging rights to say I have a 3.5 Ltr 300HP motor that still makes gobs of torque. I will not sacrifice the torque to get the HP.
Help us out guys. Please don't just say use "search" because you can look all day for bits and pieces of the puzzle. Let's put it all in one post. Thanks.
So here is the question: What bolt on mods should I get to make the 287HP match the 300HP of the new motor with NO loss of torque?
I am looking for cost effectiveness, reliability and ease of install. (just like most people). I don't care about huge horsepower gains, just a little more umph and bragging rights to say I have a 3.5 Ltr 300HP motor that still makes gobs of torque. I will not sacrifice the torque to get the HP.
Help us out guys. Please don't just say use "search" because you can look all day for bits and pieces of the puzzle. Let's put it all in one post. Thanks.
10-11-2005, 02:58 PM
#2
04 base model... $1400 in mods...
Intake with heat shield...
AAM angled plenum
TS Headers
Helix HF cats
Stock exhaust...
no tune...a/f was fine according to Tuan from GRD.
Sorry I never did a base run. And I don't want to highjack your thread with dyno pics.
These were the results from GRD in Naperville, IL.
249@ 6300
245 @ 4600
17% loss = 300hp and 295tq at the flywheel.
Zquicksilver
Intake with heat shield...
AAM angled plenum
TS Headers
Helix HF cats
Stock exhaust...
no tune...a/f was fine according to Tuan from GRD.
Sorry I never did a base run. And I don't want to highjack your thread with dyno pics.
These were the results from GRD in Naperville, IL.
249@ 6300
245 @ 4600
17% loss = 300hp and 295tq at the flywheel.
Zquicksilver
10-11-2005, 05:49 PM
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Thanks to all that responded.
Are you saying the Crawford headers will do the job on thier own? I did not think there was any single mod that would pick up 13HP and some torque on it's own.
It the JWT Popcharger superior to the Aem or Injen CAI? I noticed that the road racers were using those at the race track.
Originally Posted by D350Z10
Crawford headers... well over 300 and about 295 tq at the flywheel
It the JWT Popcharger superior to the Aem or Injen CAI? I noticed that the road racers were using those at the race track.
10-11-2005, 10:19 PM
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Some alternative ways:
1. If you live in a stated that only offers 91 octane, just find the nearest gas station that has 100 and pump a few gallons in. Of course, you want to mix enough that you run around 93 octane. If your in a state that offers 93 octane, your in good shape. I've done this several times and the dyno appears to give roughly 7RWHP for using mixed gas. Of course, I wouldn't expect miracles with running mixed gas.
2. Take out your jacks, spare, floormats and run a 1/4 tank everyday. No cost, just inconvient at times.
3. Hope you got lucky and bought a factory freak Z that outputs and dynos the same as a rev-up motor. Not everyone gets lucky, the flip-side is you could have gotten a lemon too.
4. You can buy a Nismo S-Tune Exhaust and use the other 3 suggested above.
5. Do nothing, and just buy the next generation Z. Then the vicious cycle starts all over again.
1. If you live in a stated that only offers 91 octane, just find the nearest gas station that has 100 and pump a few gallons in. Of course, you want to mix enough that you run around 93 octane. If your in a state that offers 93 octane, your in good shape. I've done this several times and the dyno appears to give roughly 7RWHP for using mixed gas. Of course, I wouldn't expect miracles with running mixed gas.
2. Take out your jacks, spare, floormats and run a 1/4 tank everyday. No cost, just inconvient at times.
3. Hope you got lucky and bought a factory freak Z that outputs and dynos the same as a rev-up motor. Not everyone gets lucky, the flip-side is you could have gotten a lemon too.
4. You can buy a Nismo S-Tune Exhaust and use the other 3 suggested above.
5. Do nothing, and just buy the next generation Z. Then the vicious cycle starts all over again.
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11-06-2005, 11:11 AM
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287 HP to 300 HP
What procedure would my dealer need to go through to boost my HP from 287 to 300 (Track Model). I have automatic transmission. My Z is a 2003. Thanks. 
you could probably call that around 300hp
11-06-2005, 11:54 AM
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I agree. To get 300hp at the crank is extremely easy. I have the G35 and I guarantee I've exceeded that by now. The exhaust and intake alone will put you past the 300hp mark (at the crank). Now, it will take A LOT MORE than that to get 300hp at the wheels.
11-06-2005, 11:57 AM
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if your really obsessed with 300 crank hp look at it like this
nismo claims 6 whp for the exaust and 5.5 for the CAI.
now crank HP (bhp) is about 15-18% better than HP to the wheels (whp)
so take 11.5 x the 15-18% margin and you get 13.225-13.57
now seriously, every Z motor is a little different and every dyno is different with margins of error.
but if you want to go by claimed #'s and sleep well at night knowing your Z has 300hp then use the above method.
other mods like pop charger and different exausts claim even more hp.
nismo claims 6 whp for the exaust and 5.5 for the CAI.
now crank HP (bhp) is about 15-18% better than HP to the wheels (whp)
so take 11.5 x the 15-18% margin and you get 13.225-13.57
now seriously, every Z motor is a little different and every dyno is different with margins of error.
but if you want to go by claimed #'s and sleep well at night knowing your Z has 300hp then use the above method.
other mods like pop charger and different exausts claim even more hp.
Last edited by **; 11-06-2005 at 12:01 PM.
11-06-2005, 12:01 PM
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Again, going from 298 to 300 hp is nothing. Farting in your car will boost your hp to 300hp (at the crank). Seriously, intake....exhaust.....plenum spacer will get you to 300hp (at the crank). No big deal.
Now, 300hp at the wheels is a whole 'nother deal.
Now, 300hp at the wheels is a whole 'nother deal.
11-06-2005, 12:06 PM
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Originally Posted by Rampage
Thanks to all that responded.
Are you saying the Crawford headers will do the job on thier own? I did not think there was any single mod that would pick up 13HP and some torque on it's own.
It the JWT Popcharger superior to the Aem or Injen CAI? I noticed that the road racers were using those at the race track.
Are you saying the Crawford headers will do the job on thier own? I did not think there was any single mod that would pick up 13HP and some torque on it's own.
It the JWT Popcharger superior to the Aem or Injen CAI? I noticed that the road racers were using those at the race track.
The Still intake and JWT Pop Charger will help you more than hurt you. Also, remember than no intake will give you a large boost in power. If anyone tells you otherwise, they have no idea what they are talking about.
I have the Pop-Charger (with the Z-tube), because I also have the MD 1/2" spacer with the Iso Thermal gasket and wanted to boost the air flow. These two mods together make a nice combination.
My opinion:
Good: Stillen intake, JWT pop-charger and stock box with z-tube.
Fair: Injen intake
Bad: Nismo and AEM intake (both are made by AEM and are identical designs).
Now, if you really want bragging rights (again we are only talking about power to the crank....not wheels), you can do this:
My current set-up:
JWT Pop-Charger
Z-tube
Motordyne 1/2" spacer with Iso Thermal Gasket
10-wire Grounding Kit
Crawford Cats
Borla Exhaust
Purchased but not installed:
UR crank pulley
Now, I have no idea what that gives me at the crank (maybe someone can estimate it for me....I have the 280hp 2005 G35 Coupe Automatic), but it would give you bragging rights about the crank HP. Again, understand that power at the crank really means nothing in the real world. It's power to the wheels that really matters.
Last edited by jnkirk1974; 11-06-2005 at 12:14 PM.
11-06-2005, 02:06 PM
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Originally Posted by FLZ_Boy
Some alternative ways:
1. If you live in a stated that only offers 91 octane, just find the nearest gas station that has 100 and pump a few gallons in. Of course, you want to mix enough that you run around 93 octane. If your in a state that offers 93 octane, your in good shape. I've done this several times and the dyno appears to give roughly 7RWHP for using mixed gas. Of course, I wouldn't expect miracles with running mixed gas.
1. If you live in a stated that only offers 91 octane, just find the nearest gas station that has 100 and pump a few gallons in. Of course, you want to mix enough that you run around 93 octane. If your in a state that offers 93 octane, your in good shape. I've done this several times and the dyno appears to give roughly 7RWHP for using mixed gas. Of course, I wouldn't expect miracles with running mixed gas.
11-06-2005, 03:51 PM
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Originally Posted by davidv
If you're looking for 13 additional hp the answer is here:
“New 350Z owners, read this before doing any modifications to your Z.”
With any bolt-on modification, no one can promise additional peak ho AND addition peak torque.
“New 350Z owners, read this before doing any modifications to your Z.”
With any bolt-on modification, no one can promise additional peak ho AND addition peak torque.
11-09-2005, 03:45 AM
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Originally Posted by Rampage
Thanks to all that responded.
Are you saying the Crawford headers will do the job on thier own? I did not think there was any single mod that would pick up 13HP and some torque on it's own.
It the JWT Popcharger superior to the Aem or Injen CAI? I noticed that the road racers were using those at the race track.
Are you saying the Crawford headers will do the job on thier own? I did not think there was any single mod that would pick up 13HP and some torque on it's own.
It the JWT Popcharger superior to the Aem or Injen CAI? I noticed that the road racers were using those at the race track.
11-09-2005, 04:30 AM
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just because your gaining a few HP at redline doesnt mean your not losing power in the middle of the RPM band.
look at mods like good quality headers (nismo, crawford, alphawerks) and notice that they claim decent gains in both HP and TQ throughout the band....
also, its a general rule that true dual exhausts and exhausts with no backpressure gain more HP up top but lose TQ down low. However, cat-back exhausts usually dont lose anything down low but only provide half the gains up top. again, dyno's vary
power to weight ratio is the key factor is almost any car, and weight can be taken off from many places:
lightweight crank pulley
light flywheel
light/small wheels
removing trunk garbage
removing passenger seat, interior panels
lighter exhaust
test pipes
carbon fiber body (serious $$)
doing most of that can save you several hundred pounds and probably drop your 1/4mi time by a tenth of a second and maybe give you 1-2 mph....again it depends on the extent you're willing to go.
some guys have a race-ready Z @ 2700lbs but have nothing inside their cars!
look at mods like good quality headers (nismo, crawford, alphawerks) and notice that they claim decent gains in both HP and TQ throughout the band....
also, its a general rule that true dual exhausts and exhausts with no backpressure gain more HP up top but lose TQ down low. However, cat-back exhausts usually dont lose anything down low but only provide half the gains up top. again, dyno's vary
power to weight ratio is the key factor is almost any car, and weight can be taken off from many places:
lightweight crank pulley
light flywheel
light/small wheels
removing trunk garbage
removing passenger seat, interior panels
lighter exhaust
test pipes
carbon fiber body (serious $$)
doing most of that can save you several hundred pounds and probably drop your 1/4mi time by a tenth of a second and maybe give you 1-2 mph....again it depends on the extent you're willing to go.
some guys have a race-ready Z @ 2700lbs but have nothing inside their cars!
Last edited by HarvesterUT; 11-09-2005 at 04:39 AM.