Extrude Honed Intake
08-25-2001, 06:42 PM
#2
It's a process that is used to smooth out your intake runners for better air flow. It's actually a good mod for 4th gens because we have restrictive long intake runners. The only problem is the cost is near 500 bucks and you have to take off your intake manifold.
08-26-2001, 09:13 AM
#6
Originally posted by Nismo87SE
1-3hp after 5000rpm and no gain below that.
1-3hp after 5000rpm and no gain below that.
08-26-2001, 02:25 PM
#7
Originally posted by BriGuyMax
hmmm...I've heard more in the range of AT LEAST 6-8...especially with the 4th gens restrictive intake manifold.
hmmm...I've heard more in the range of AT LEAST 6-8...especially with the 4th gens restrictive intake manifold.
08-26-2001, 09:18 PM
#8
Not DAVEB the parts guy
Join Date: Aug 2000
Posts: 8,555
The 4th gen intake manifold isn't restrictive so to speak, it's just not tuned for high rpm power. The long intake runners of the 4th gen give very good low to mid range power, but don't flow well after 5500rpms. The variable intake manifold on the 5th gen runs long runners from idle to 5000rpms and then switches to short runners for topend power. Short runners gives upper rpm power. You will see little gain if any with the extrude honed intake manifold because you aren't giving the motor what it needs in the topend.....a shorter intake path. Nissan did a very good job with them from the factory. For such long runners to breath well past 5000rpms is quite an accomplishment.
This same intake principle applys to the POP intake vs CAI. POP = more power up top and the CAI gives a little more grunt down low.
Dave
This same intake principle applys to the POP intake vs CAI. POP = more power up top and the CAI gives a little more grunt down low.
Dave
08-26-2001, 10:33 PM
#9
Originally posted by Dave B
The 4th gen intake manifold isn't restrictive so to speak, it's just not tuned for high rpm power. The long intake runners of the 4th gen give very good low to mid range power, but don't flow well after 5500rpms. The variable intake manifold on the 5th gen runs long runners from idle to 5000rpms and then switches to short runners for topend power. Short runners gives upper rpm power. You will see little gain if any with the extrude honed intake manifold because you aren't giving the motor what it needs in the topend.....a shorter intake path. Nissan did a very good job with them from the factory. For such long runners to breath well past 5000rpms is quite an accomplishment.
This same intake principle applys to the POP intake vs CAI. POP = more power up top and the CAI gives a little more grunt down low.
Dave
The 4th gen intake manifold isn't restrictive so to speak, it's just not tuned for high rpm power. The long intake runners of the 4th gen give very good low to mid range power, but don't flow well after 5500rpms. The variable intake manifold on the 5th gen runs long runners from idle to 5000rpms and then switches to short runners for topend power. Short runners gives upper rpm power. You will see little gain if any with the extrude honed intake manifold because you aren't giving the motor what it needs in the topend.....a shorter intake path. Nissan did a very good job with them from the factory. For such long runners to breath well past 5000rpms is quite an accomplishment.
This same intake principle applys to the POP intake vs CAI. POP = more power up top and the CAI gives a little more grunt down low.
Dave
Why can't my buddy in his 5-speed 5th gen with JWT and cattman y-pipe pull on me?? The only thing I have that he doesn't is a cat-back. I actually pull on him pretty good especially in 3rd and 4th. all WITHOUT NOS.
08-26-2001, 10:53 PM
#10
If you guys plan to Extrude honeing your intake manifold, I whould recommend doing it with out the assistance of Stillen. For example there is a shop near by my house that will do my manifold for $150. I whould have to take it off and drop it off for that price though. They also do TOB's too for even less. BTW I do not know how the quality compares with Extrude but I do know they have all the right equipment to do the job. I don't plan on bothering with this though because like Dave and others have said the power increases is just not really there + I am going to get a G35 when they come out{probably} 
.
.
08-27-2001, 09:16 AM
#11
Not DAVEB the parts guy
Join Date: Aug 2000
Posts: 8,555
Originally posted by BriGuyMax
Dave,
Why can't my buddy in his 5-speed 5th gen with JWT and cattman y-pipe pull on me?? The only thing I have that he doesn't is a cat-back. I actually pull on him pretty good especially in 3rd and 4th. all WITHOUT NOS.
Dave,
Why can't my buddy in his 5-speed 5th gen with JWT and cattman y-pipe pull on me?? The only thing I have that he doesn't is a cat-back. I actually pull on him pretty good especially in 3rd and 4th. all WITHOUT NOS.
With all that said, the 4th gen is more than enough competition for the 5th gen, mod for mod. I do believe the 5th gen should hold some advantage after 100mph. It would only make sense because the car can continue to make more power in each gear.
Dave
08-27-2001, 11:14 AM
#12
Originally posted by Dave B
It could be a combination of things. He might have a slightly slower 5th gen, dies he have the heavy 17s, he might not drive too well, your car might be a little faster, you're a better driver, etc. Don't forget that the 5th gen weighs about 170lbs more than the 4th gen and only puts down the same amount of torque as the 4th gen, mod for mod. The same amount of torque in a 170lb car affects the performance from 0-70. I've ran Russ' 2001 5 speed three times on the highway from 50 to 95mph and each time I pulled him by over a car with no signs of him closing the gap. I drove his car and it felt linear thru the whole rpm range to 6500, but lacked the thrust the 4th gen has from 2500-4500rpms.
With all that said, the 4th gen is more than enough competition for the 5th gen, mod for mod. I do believe the 5th gen should hold some advantage after 100mph. It would only make sense because the car can continue to make more power in each gear.
Dave
It could be a combination of things. He might have a slightly slower 5th gen, dies he have the heavy 17s, he might not drive too well, your car might be a little faster, you're a better driver, etc. Don't forget that the 5th gen weighs about 170lbs more than the 4th gen and only puts down the same amount of torque as the 4th gen, mod for mod. The same amount of torque in a 170lb car affects the performance from 0-70. I've ran Russ' 2001 5 speed three times on the highway from 50 to 95mph and each time I pulled him by over a car with no signs of him closing the gap. I drove his car and it felt linear thru the whole rpm range to 6500, but lacked the thrust the 4th gen has from 2500-4500rpms.
With all that said, the 4th gen is more than enough competition for the 5th gen, mod for mod. I do believe the 5th gen should hold some advantage after 100mph. It would only make sense because the car can continue to make more power in each gear.
Dave
08-27-2001, 09:39 PM
#13
Originally posted by emax95
If you guys plan to Extrude honeing your intake manifold, I whould recommend doing it with out the assistance of Stillen. For example there is a shop near by my house that will do my manifold for $150. I whould have to take it off and drop it off for that price though. They also do TOB's too for even less. BTW I do not know how the quality compares with Extrude but I do know they have all the right equipment to do the job. I don't plan on bothering with this though because like Dave and others have said the power increases is just not really there + I am going to get a G35 when they come out{probably} .
If you guys plan to Extrude honeing your intake manifold, I whould recommend doing it with out the assistance of Stillen. For example there is a shop near by my house that will do my manifold for $150. I whould have to take it off and drop it off for that price though. They also do TOB's too for even less. BTW I do not know how the quality compares with Extrude but I do know they have all the right equipment to do the job. I don't plan on bothering with this though because like Dave and others have said the power increases is just not really there + I am going to get a G35 when they come out{probably}
.
08-27-2001, 09:45 PM
#14
Originally posted by dmbmaxima88
what is the name of this place. that's a great deal. i'd seriously think about doing that since i'm gonna keep this car for a while. at least 2 more years. maybe more once it's a 5-spd.
what is the name of this place. that's a great deal. i'd seriously think about doing that since i'm gonna keep this car for a while. at least 2 more years. maybe more once it's a 5-spd.
08-27-2001, 10:16 PM
#15
Originally posted by emax95
The shops name is Kellys and it is in Provindence R.I. , I will try to get you some more info with in the next few days.
The shops name is Kellys and it is in Provindence R.I. , I will try to get you some more info with in the next few days.
08-28-2001, 09:28 AM
#17
Senior Member
Join Date: Jun 2001
Posts: 373
In the Sept 2001 issue of SCC, the try an extrude honed intake on a 200SX SE-R, with inly minimal gains, 3-4 hp, they also test out some other mods, with dynos. Obviously a 200sx is not a max, but I have to believe that the gains would be any more than that....
08-28-2001, 09:32 AM
#18
Originally posted by jran76
In the Sept 2001 issue of SCC, the try an extrude honed intake on a 200SX SE-R, with inly minimal gains, 3-4 hp, they also test out some other mods, with dynos. Obviously a 200sx is not a max, but I have to believe that the gains would be any more than that....
In the Sept 2001 issue of SCC, the try an extrude honed intake on a 200SX SE-R, with inly minimal gains, 3-4 hp, they also test out some other mods, with dynos. Obviously a 200sx is not a max, but I have to believe that the gains would be any more than that....
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