** NEW INTAKE MANIFOLD ** long awaited, with pics
04-08-2005, 02:49 PM
#121
Registered User
iTrader: (3)
Join Date: Oct 2003
Location: So Cal
Posts: 588
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by SungNamZ
YES! The only thing you can't get to once the INTAKE is installed is the injectors on the passenger side. By your question, I know you have changed the plugs and know the relationship of coils to some of the harnesses and grounding wires in this pic. Hope it helps and answers your question?
04-08-2005, 03:06 PM
#123
Registered User
Thread Starter
iTrader: (3)
Join Date: Oct 2002
Location: Santa Ana, CA
Posts: 479
Likes: 0
Received 0 Likes
on
0 Posts
We should see NA numbers in about 10 days, and no they most likely wont be as exciting, but only because power is so much harder to make with this engine in NA form.
We are still expecting very impressive NA numbers, and this is based on past dyno testing, along with some improvements we made to the design since the last NA testing we did on it.
Making a complete manifold that bolts to the heads would be great, but would also up the cost considerably, we think we are releasing a great product, at a great price point.
Expect initial sale pricing to be in the low $700, with normal pricing coming back up to $800.
We are still expecting very impressive NA numbers, and this is based on past dyno testing, along with some improvements we made to the design since the last NA testing we did on it.
Making a complete manifold that bolts to the heads would be great, but would also up the cost considerably, we think we are releasing a great product, at a great price point.
Expect initial sale pricing to be in the low $700, with normal pricing coming back up to $800.
04-08-2005, 05:12 PM
#126
Registered User
iTrader: (2)
Join Date: Oct 2004
Location: San Diego, CA
Posts: 289
Likes: 0
Received 0 Likes
on
0 Posts
I would expect to see N/A cars lose gobs of torque with this NEW INTAKE, and in addition many of those same cars probably spend about zero time between 6.5k and 7k RPMs.
The NEW INTAKE looks awesome for FI though!
Oh, and can you guys please come up with a better name than NEW INTAKE?
The NEW INTAKE looks awesome for FI though!
Oh, and can you guys please come up with a better name than NEW INTAKE?
04-08-2005, 05:22 PM
#127
Registered User
Thread Starter
iTrader: (3)
Join Date: Oct 2002
Location: Santa Ana, CA
Posts: 479
Likes: 0
Received 0 Likes
on
0 Posts
our current NA numbers have it losing ZERO peak torque, we are only trying to massage the powerband before releasing NA numbers.
We have already achieved decent gains in NA. Also realize that true, you wont spend a lot of time in 6500-7000, however the Z makes its peak power between 6000 and 6400. So in factory form, you dont get a lot of useable room of peak hp before hitting the rev limit.
Our manifold has been pulling hard past 6000 rpm, and keeps climbing while the factory manifold really drops off after 6400. This is all in NA. So we are trying to shift the power curve down slightly, and we are definately going to look at numbers with an increased rev limiter. The rev limit increase will by no means be a requirement, but we want to see the entire power curve to give us and everyone else as much info as possible regarding its potential.
We have already achieved decent gains in NA. Also realize that true, you wont spend a lot of time in 6500-7000, however the Z makes its peak power between 6000 and 6400. So in factory form, you dont get a lot of useable room of peak hp before hitting the rev limit.
Our manifold has been pulling hard past 6000 rpm, and keeps climbing while the factory manifold really drops off after 6400. This is all in NA. So we are trying to shift the power curve down slightly, and we are definately going to look at numbers with an increased rev limiter. The rev limit increase will by no means be a requirement, but we want to see the entire power curve to give us and everyone else as much info as possible regarding its potential.
![cquence 350 [Z]'s Avatar](https://my350z.com/forum/images/avatars/27.jpg)
04-08-2005, 07:30 PM
#133
Registered User
iTrader: (5)
Join Date: Jan 2004
Location: N cal
Posts: 1,172
Likes: 0
Received 0 Likes
on
0 Posts
those of us who like to drag race every now and then would appreciate the higher power output since most of us know that the car runs "flat" in the upper rpms and knowing that drag racing or even auto-crossing, we rely on the upper/high end power. I mean as long as we dont loost torque in the lowe powerband im a happy camper. However tweeking this product can make it better.
04-08-2005, 07:34 PM
#134
Originally Posted by SungNamZ
Put the "Z" on the dyno and did three (3) pulls with Kinetix V4, removed V4 and lower intake, installed "prototype" and did three (3) pulls with NO tuning adjustment. Here are numbers on one chart. Technosquare performed "Limited Flash" on ECU. Rev limit was increased to 7100 rpms. Dyno recording time stopped at 6900 rpms.
I also question the validity of the gains all together. If you look at the before dyno, the car starts to run out of steam and the power drops off before redline. I think this is a tuning issue. I've seen many FI dynos where the curve continues climbing up right to 7000. I would hazard to guess that if this car was better tuned at the higher rpms, it would have much of the same gains as the "after" dyno, without changing the manifold.
Just my $.02
04-08-2005, 07:39 PM
#136
New Member
iTrader: (7)
Join Date: May 2002
Location: Atlanta
Posts: 4,959
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by 350Zteve
I have a question/observation that no one seems to have pointed out fully. Yes, there are large HP gains, but where? This thing start showing improvement at 6100RPMS. What good is that?
I also question the validity of the gains all together. If you look at the before dyno, the car starts to run out of steam and the power drops off before redline. I think this is a tuning issue. I've seen many FI dynos where the curve continues climbing up right to 7000. I would hazard to guess that if this car was better tuned at the higher rpms, it would have much of the same gains as the "after" dyno, without changing the manifold.
Just my $.02
I also question the validity of the gains all together. If you look at the before dyno, the car starts to run out of steam and the power drops off before redline. I think this is a tuning issue. I've seen many FI dynos where the curve continues climbing up right to 7000. I would hazard to guess that if this car was better tuned at the higher rpms, it would have much of the same gains as the "after" dyno, without changing the manifold.
Just my $.02
04-08-2005, 08:13 PM
#137
Sponsor
builtZmotors
builtZmotors
iTrader: (21)
Join Date: Jul 2004
Location: Albuquerque, NM
Posts: 2,780
Likes: 0
Received 0 Likes
on
0 Posts
My understanding (let me know if I am incorrect)
When dealing with forced induction, as demonstrated in the case of SungNam's Z, we are looking at the AMOUNT of air that can be crammed into the cylinder/effeciently mixed with fuel...igniting and creating a forceful downward thruust of the piston...
if this plenum allows greater air flow..what would the difference be in running the vortec with a different sized pulley and increasing the amount of air being crammed into the stock plenum...thus still netting a similar amount of MORE air in the combustion chamber...
this leads me to wonder...if this plenum allows greater air to flow (let's say 12psi equiv)with the same vortec pulley that would only make 8psi (understand these are fictional numbers for the purpose of illustrating my point in question)...wouldn't this still cause an increase in cylinder pressure and lead to the danger of blowing the stock engine...
I would assume that while comparing the stock plenum versus the kinetix plenum- using a supercharger (or any F/I for that matter), the air/fuel ratio would be leaner w/ the kinetix, if you did not tune for this plenum...(unless the maf compensates for this)
So, my point is...is this plenum thingy just a means to allow more air to enter the combustion chamber??? if NA gains are huge...great (possibly dangerous on the stock internals? how does the stock ECU respond?)...But I assume the F/I gains will be the equivelant of just adding another pound or 2 of boost with the stock plenum
LET ME KNOW WHAT U THINK OF MY RAMBLING???
When dealing with forced induction, as demonstrated in the case of SungNam's Z, we are looking at the AMOUNT of air that can be crammed into the cylinder/effeciently mixed with fuel...igniting and creating a forceful downward thruust of the piston...
if this plenum allows greater air flow..what would the difference be in running the vortec with a different sized pulley and increasing the amount of air being crammed into the stock plenum...thus still netting a similar amount of MORE air in the combustion chamber...
this leads me to wonder...if this plenum allows greater air to flow (let's say 12psi equiv)with the same vortec pulley that would only make 8psi (understand these are fictional numbers for the purpose of illustrating my point in question)...wouldn't this still cause an increase in cylinder pressure and lead to the danger of blowing the stock engine...
I would assume that while comparing the stock plenum versus the kinetix plenum- using a supercharger (or any F/I for that matter), the air/fuel ratio would be leaner w/ the kinetix, if you did not tune for this plenum...(unless the maf compensates for this)
So, my point is...is this plenum thingy just a means to allow more air to enter the combustion chamber??? if NA gains are huge...great (possibly dangerous on the stock internals? how does the stock ECU respond?)...But I assume the F/I gains will be the equivelant of just adding another pound or 2 of boost with the stock plenum
LET ME KNOW WHAT U THINK OF MY RAMBLING???
04-09-2005, 04:05 PM
#140
Registered User
iTrader: (2)
Join Date: Oct 2004
Location: San Diego, CA
Posts: 289
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by lsdunique
our current NA numbers have it losing ZERO peak torque, we are only trying to massage the powerband before releasing NA numbers...