i dont think it was ever actually an official type R.. just euro R

 

its called euro r in japan and type r in europe

 

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>

 

i completely agree with rotarygod here

 

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?

 

If you are talking about Jesus "Kilo" Padilla, his best time is 9.8 or so, but on a P-port engine.

 

No I heard there was another guy with the port like his on a 6port engine doing 10's

 

Thats next to impossible in NA form

 

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.

 

Nope, unless its SUPER\DUPER light, around 1000LBS. Let me put it this way, Kilos car is producing over 300HP to teh wheels, on a 1800LBS car. I have never seen a 13B NA (non pport) produce more than 250HP @ the wheels on gas

 

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.

 

Easier said than done my friend, and BELIEVE me a lot of peopla have tried

 

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.

 

My car is doing about 170-175hp to the wheels now, stock ports.

 

with what mods?

 

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

 

Kahren I'm sure he can hit that with a stand alone.

 

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.

 

bridgeport, not street. and if im not mistaken it was only on the 5&6th

 

can hit what with a standalone?

 

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

 

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.

 

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.

 

heres my last dyno run