NA 6 port 177+ RWHP
12-06-04, 12:21 AM
#28
This 6 port dyno graph looks great. It could have gone past 8000 rpm easily in the power department. This is how a ported 6 port engine should be done. Everyone wants to make the 6 port engine ports huge but there's no need. It doesn't help anything anyways. On these engines you only want to change the primary a little. The secondary and auxillary ports are more cleaned up than anything. "Mega" 6 ports like everyone tries to do are worthless. This is how it's done. I'll bet this engine drives great.
As far as Kahren's engine goes, look at his dyno chart. It looks great too but he revved it higher to get that number. I know he has stock ports. His intake manifold runners are shorter and are more suited to a high rpm. This dyno graph however shows that the S5 manifold really does do a great job. The S5 manifold may physically flow less than an S4 manifold on a flowbench but it still makes more power due to the VDI tuning.
Good job slvr7!
Here are some pictures of how NOT to do a 6 port engine.
<pictures removed- owner of images did not give permission for Rotarygod to post them, he is lucky he is not getting sued.- you must ask permission before stealing someone's images>
As far as Kahren's engine goes, look at his dyno chart. It looks great too but he revved it higher to get that number. I know he has stock ports. His intake manifold runners are shorter and are more suited to a high rpm. This dyno graph however shows that the S5 manifold really does do a great job. The S5 manifold may physically flow less than an S4 manifold on a flowbench but it still makes more power due to the VDI tuning.
Good job slvr7!
Here are some pictures of how NOT to do a 6 port engine.
<pictures removed- owner of images did not give permission for Rotarygod to post them, he is lucky he is not getting sued.- you must ask permission before stealing someone's images>
Last edited by Icemark; 12-31-04 at 03:22 PM.
12-16-04, 03:50 AM
#30
Rotary Freak
And why is this? WIll this not make more top end power? Bigger= better right as long as you have a carb or custom manifold that allows that much air to travel in I dont see how tat would not be a good idea. Doesent some nhra guy do that on an N/A and runs 10's in the 1/4 all motor?
12-17-04, 06:59 AM
#34
Rotary Freak
How so? It has about the same volume as a PP. Plus in a super light rx3 or whatever it was im sure its not to impossible. I heard it was like the one in the pic except also had a brige port above that.
12-17-04, 09:28 AM
#35
Originally Posted by von
How so? It has about the same volume as a PP. Plus in a super light rx3 or whatever it was im sure its not to impossible. I heard it was like the one in the pic except also had a brige port above that.
12-19-04, 01:16 AM
#36
My 13B makes about 200 or so HP flywheel.
I would like to add that its possible to do the 1/4 in 10's (respectively around that number of course) with a non-p-port 13B N/A. You could gear it so your redline in whatever you choose your top gear to be when you hit the trap. Done properly and you accelerate quite rapidly. One of my brothers had an old Chev Nova with an Inline six. We used to call it the '50' Killer because it could beat a 350 Nova, Maro, whatever in the 1/4 mile with minimal engine mods and extreme gear ratio mods. And by minimal mods I mean the both my brothers car and the opponents cars have limited mods in reason.
I would like to add that its possible to do the 1/4 in 10's (respectively around that number of course) with a non-p-port 13B N/A. You could gear it so your redline in whatever you choose your top gear to be when you hit the trap. Done properly and you accelerate quite rapidly. One of my brothers had an old Chev Nova with an Inline six. We used to call it the '50' Killer because it could beat a 350 Nova, Maro, whatever in the 1/4 mile with minimal engine mods and extreme gear ratio mods. And by minimal mods I mean the both my brothers car and the opponents cars have limited mods in reason.
12-21-04, 07:28 AM
#37
Originally Posted by Alak
My 13B makes about 200 or so HP flywheel.
I would like to add that its possible to do the 1/4 in 10's (respectively around that number of course) with a non-p-port 13B N/A. You could gear it so your redline in whatever you choose your top gear to be when you hit the trap.
I would like to add that its possible to do the 1/4 in 10's (respectively around that number of course) with a non-p-port 13B N/A. You could gear it so your redline in whatever you choose your top gear to be when you hit the trap.
12-24-04, 11:46 PM
#38
From about 1985 to I think 1996 or 1997, my uncle owned one of the fastest known plated street bikes in the world. He had 2 transmissions. 1 for street use and 1 for drag racing. It was geared to hit 15,000RPM or so (His redline) in 5th gear about 2 or three paces from the trap. It was crazy fast bike.
He was finnally beat by a guy who used his exact engine setup on a different, but similar chassis.
He was finnally beat by a guy who used his exact engine setup on a different, but similar chassis.
12-25-04, 01:48 AM
#41
Son what is your alibi?
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Originally Posted by koukifc3s
I dont think the rx-8 has broken 200rwhp yet... 
Anyway, NICE looking curve you got there
12-25-04, 08:44 AM
#43
OBEY YOUR MAZDA
My dynosheet shows(redline-flywheel) 138,2KW x 1,36 = 187,952 FWHP @ 7260rpm and (blueline-rearwheel) 114,4KW x 1,36 = 155,584 RWHP @ 7260rpm
https://www.rx7club.com/attachment.p...chmentid=74088
Mods are
Euro Spec. motor
Running stock ECU
Medium streetporting
True dual 2" exhaust
K&N drop in filter
Flowed intakemanifolds
Fully functional butterfly valves
No emissions
No porting of the exhaust.
https://www.rx7club.com/attachment.p...chmentid=74088
Mods are
Euro Spec. motor
Running stock ECU
Medium streetporting
True dual 2" exhaust
K&N drop in filter
Flowed intakemanifolds
Fully functional butterfly valves
No emissions
No porting of the exhaust.
12-27-04, 02:55 AM
#44
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Originally Posted by PoLaK
ITO made 242rwhp with a RENESIS with a streetport, everything else stock including the injectors, he was planning on doing 350rwhp with a 150shot but not done yet.
Anyway, NICE looking curve you got there
Anyway, NICE looking curve you got there
12-29-04, 08:03 PM
#47
i am not a girl
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Originally Posted by von
170-175rwp. I had 160rwp without EMS. Go figure
he said 170-175 stock ports, i said with what mods, you said he can hit that with a standalone hit what? he already has 170-175 wouldnt the standalone add more? unless he alrady has a standalone. thats why i wanted to see what mods.
and did he dyno this? or does he THINK it has 170-175
12-30-04, 02:09 PM
#48
Rotary Freak
If he meant flywheel then I would assume he just added this stuff up in his head according to magazine figures. But I think he meant rwp. Which means stand alone
And who said I had a street port? I have 160rwp stock ports no ems. I showed you my sig. I have dyno graphs on this forum.
And who said I had a street port? I have 160rwp stock ports no ems. I showed you my sig. I have dyno graphs on this forum.
12-30-04, 09:35 PM
#49
Damnit, steel doors hurt!
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Ok my mods,
S4 GXL with
S5 Na Motor
S5 NA Intake manifold, 6 ports and VDI wired open
Ported Polished and knifeedge throttle body, with cold start removed.
RB Pullies
RB Race Header
2.5 in exhaust fromt he header to dual 2in exhaust
No emissions
SAFC II Dyno Tuned
Walbro 255lph pump
Cold Air Intake, cone filter on adapter
Ground wire kit
I think thats all i can remember
I know for sure it did 165 hp to the wheels on the dyno with a 120 something torque. My Air Flow meter was mounted wrong causing my car to have a rough a/f ratio on the dyno and driving mounted it correctly and it runs better.
The 170-175 hp to the wheels is a rough geuss.
But put it this weigh I raced my friends Sentra and we ran neck and neck before I fixed the air flow meter and now I leave him.
S4 GXL with
S5 Na Motor
S5 NA Intake manifold, 6 ports and VDI wired open
Ported Polished and knifeedge throttle body, with cold start removed.
RB Pullies
RB Race Header
2.5 in exhaust fromt he header to dual 2in exhaust
No emissions
SAFC II Dyno Tuned
Walbro 255lph pump
Cold Air Intake, cone filter on adapter
Ground wire kit
I think thats all i can remember
I know for sure it did 165 hp to the wheels on the dyno with a 120 something torque. My Air Flow meter was mounted wrong causing my car to have a rough a/f ratio on the dyno and driving mounted it correctly and it runs better.
The 170-175 hp to the wheels is a rough geuss.
But put it this weigh I raced my friends Sentra and we ran neck and neck before I fixed the air flow meter and now I leave him.
