FASTEST TIMES ON STOCK PORTS??
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From: Phoenix, AZ, USA
Re: FASTEST TIMES ON STOCK PORTS??
I've gone a measly 9.67 @ 157, made 902hp on my Dynapack at 36psi, stock B16 head with ITR cams.. I guarantee there are faster ones out there though..
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From: bronx, ny, usa
Re: FASTEST TIMES ON STOCK PORTS??
are u guys using stock ports..is that on stock valve jobs? isnt 50% of the flow gained from porting coming from the valve job...and isnt the biggest difference in head work just running the same power at lower psi..
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From: Hamilton, NJ, USA
Re: FASTEST TIMES ON STOCK PORTS??
bingo on all accounts there. You can make the power, but it will make it easier on a properly ported head. It will have more torque, and help for power to come on sooner.
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From: Phoenix, AZ, USA
Re: FASTEST TIMES ON STOCK PORTS??
I'd love to do a true back to back test on my car with a stock head and a ported head with the combustion chambers and valvetrain being identical, so I know whether or not to spend money on porting in the future.. My spare head for my car is a CNC ported head, so I'm going to cc the chambers and see how they compare to my stock head before doing any more testing on my dyno..
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From: Crofton, Md, USA
Re: FASTEST TIMES ON STOCK PORTS??
lol I went 9.53@ 153 600 whp crx weighed 2250 in nopi trim stock head type r cams 61mm turbo..... , I dont know what I would do with 800+ in a crx....
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From: MOBTOWN,MD
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Joined: Mar 2001
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From: Phoenix, AZ, USA
Re: FASTEST TIMES ON STOCK PORTS??
If you ever get that new Honda back together, we'll see what you can do! 
Come make a few passes in my Integra and show me how to drive, unless Evans is recruiting you for his car?
Come make a few passes in my Integra and show me how to drive, unless Evans is recruiting you for his car? 
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Re: FASTEST TIMES ON STOCK PORTS??
81mm gsr.... Ctr cams......8.5 cr......bone stock gsr head..stock valves...... portflow inner type r outer springs...810 on dyno jet...9.89@153.......bone stock gsr trans...with a miller locker...far from the fastest
Last edited by hello1320; Sep 14, 2010 at 08:10 PM.
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From: Northwest Tri Cities Kennewick, WA, USA
Re: FASTEST TIMES ON STOCK PORTS??
I don't mean to hijack this thread about B series heads (well kind of! )but my stock H22 head port just took me to a 9.17 at 161 mph. Just Skunk2 Pro 1's and supertech valvesprings...
)but my stock H22 head port just took me to a 9.17 at 161 mph. Just Skunk2 Pro 1's and supertech valvesprings...
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From: Miura-Shi, Japan
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From: Indianapolis, USA
Re: FASTEST TIMES ON STOCK PORTS??
There absolutely, positively is TONS of power in a good cylinder head over a stock head if you get it all working together. If you bolt a new big intake and put a big roller cam in a stock head you aren't going to realize the same gains you would if you put it on there with a good 300cfm head. On that same note, if you put a badass cylinder head with a turd intake and stock cams, you aren't going to realize the full potential either.
The valve job is very important for making power, but saying that 50% of the gains from porting can be had with a good VJ is a little much. Maybe on a standard port job with basic short turn and polish it to make you feel good work. Putting some crazy narrow high flowing VJ on a turbo car is kind of silly if it is just going to get beat up real fast. How about sacrifice a couple CFM for something that will hold up to getting the **** beat out of it??
It isn't one thing that makes a good head, it is a combination of many things. Valve job, air flow, air speed (yes air can be too fast), swirl into the chamber, and shear port volume. Turning the air over the short turn can get complicated. I always try to put this in perspective by saying that Honda designed this stock port for a 160hp engine and the fuel volume associated with making 160hp. Now we are trying to make 1000hp on that same port, with the fuel volume for 1000hp taking up that port.
I think the exhaust side is often overlooked also. There is a lot of power there, especially on a turbo car and it isn't about the same things you are looking for on the other side like pretty flow patterns and flow charts. Its about getting that air the f*ck out of there. Our best exhaust VJ flows like ****, but it makes power over others we tried that proved better on the bench.
Take a 72mm turbo car with the usual goods, stock head, R cams, Victor X and replace all that with a good manifold, head, and cam....100-200+hp, more torque, and it will make it all way sooner on less boost. The car will feel like a different machine.
There are a handful of real good B series heads out there that head guys put some real ground work into, and gobs of average stuff.
The valve job is very important for making power, but saying that 50% of the gains from porting can be had with a good VJ is a little much. Maybe on a standard port job with basic short turn and polish it to make you feel good work. Putting some crazy narrow high flowing VJ on a turbo car is kind of silly if it is just going to get beat up real fast. How about sacrifice a couple CFM for something that will hold up to getting the **** beat out of it??
It isn't one thing that makes a good head, it is a combination of many things. Valve job, air flow, air speed (yes air can be too fast), swirl into the chamber, and shear port volume. Turning the air over the short turn can get complicated. I always try to put this in perspective by saying that Honda designed this stock port for a 160hp engine and the fuel volume associated with making 160hp. Now we are trying to make 1000hp on that same port, with the fuel volume for 1000hp taking up that port.
I think the exhaust side is often overlooked also. There is a lot of power there, especially on a turbo car and it isn't about the same things you are looking for on the other side like pretty flow patterns and flow charts. Its about getting that air the f*ck out of there. Our best exhaust VJ flows like ****, but it makes power over others we tried that proved better on the bench.
Take a 72mm turbo car with the usual goods, stock head, R cams, Victor X and replace all that with a good manifold, head, and cam....100-200+hp, more torque, and it will make it all way sooner on less boost. The car will feel like a different machine.
There are a handful of real good B series heads out there that head guys put some real ground work into, and gobs of average stuff.
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Joined: Jan 2003
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From: wa, usa
Re: FASTEST TIMES ON STOCK PORTS??
after years of running my stock port head and stock gsr cams, I think I'm going to quit at 9.68@159 and finally port it, go bigger cams and see how much more traction issues I have haha.
Re: FASTEST TIMES ON STOCK PORTS??
There absolutely, positively is TONS of power in a good cylinder head over a stock head if you get it all working together. If you bolt a new big intake and put a big roller cam in a stock head you aren't going to realize the same gains you would if you put it on there with a good 300cfm head. On that same note, if you put a badass cylinder head with a turd intake and stock cams, you aren't going to realize the full potential either.
The valve job is very important for making power, but saying that 50% of the gains from porting can be had with a good VJ is a little much. Maybe on a standard port job with basic short turn and polish it to make you feel good work. Putting some crazy narrow high flowing VJ on a turbo car is kind of silly if it is just going to get beat up real fast. How about sacrifice a couple CFM for something that will hold up to getting the **** beat out of it??
It isn't one thing that makes a good head, it is a combination of many things. Valve job, air flow, air speed (yes air can be too fast), swirl into the chamber, and shear port volume. Turning the air over the short turn can get complicated. I always try to put this in perspective by saying that Honda designed this stock port for a 160hp engine and the fuel volume associated with making 160hp. Now we are trying to make 1000hp on that same port, with the fuel volume for 1000hp taking up that port.
I think the exhaust side is often overlooked also. There is a lot of power there, especially on a turbo car and it isn't about the same things you are looking for on the other side like pretty flow patterns and flow charts. Its about getting that air the f*ck out of there. Our best exhaust VJ flows like ****, but it makes power over others we tried that proved better on the bench.
Take a 72mm turbo car with the usual goods, stock head, R cams, Victor X and replace all that with a good manifold, head, and cam....100-200+hp, more torque, and it will make it all way sooner on less boost. The car will feel like a different machine.
There are a handful of real good B series heads out there that head guys put some real ground work into, and gobs of average stuff.
The valve job is very important for making power, but saying that 50% of the gains from porting can be had with a good VJ is a little much. Maybe on a standard port job with basic short turn and polish it to make you feel good work. Putting some crazy narrow high flowing VJ on a turbo car is kind of silly if it is just going to get beat up real fast. How about sacrifice a couple CFM for something that will hold up to getting the **** beat out of it??
It isn't one thing that makes a good head, it is a combination of many things. Valve job, air flow, air speed (yes air can be too fast), swirl into the chamber, and shear port volume. Turning the air over the short turn can get complicated. I always try to put this in perspective by saying that Honda designed this stock port for a 160hp engine and the fuel volume associated with making 160hp. Now we are trying to make 1000hp on that same port, with the fuel volume for 1000hp taking up that port.
I think the exhaust side is often overlooked also. There is a lot of power there, especially on a turbo car and it isn't about the same things you are looking for on the other side like pretty flow patterns and flow charts. Its about getting that air the f*ck out of there. Our best exhaust VJ flows like ****, but it makes power over others we tried that proved better on the bench.
Take a 72mm turbo car with the usual goods, stock head, R cams, Victor X and replace all that with a good manifold, head, and cam....100-200+hp, more torque, and it will make it all way sooner on less boost. The car will feel like a different machine.
There are a handful of real good B series heads out there that head guys put some real ground work into, and gobs of average stuff.
i might hit you over the winter 4-piston and talk with you about a head that might be our next step...
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