fc3s690

when I had my 90gxl I dynoed 180hp to the wheels. that was with a fresh rebuild, full rb exhaust and a drop in K&N filter. Oh yea I polished the intake runners too. It was still slow lol

Aaron Cake

iTrader: (1)

Without a standalone you won't be able to take advantage of that intake. Also those runners are insanely short and will probably start making power at 11K or so.

From the video it looks like you have the stock exhaust manifold? You'll never make any power with that thing.

An S-AFC won't be able to tune this very well. You need a standalone.

KompressorLOgic

iTrader: (6)

well i dont want to flame.. but my goodness im speachless that intake is terrible! out of curiousity who designed that thing? did the person have any knowledge of intake manifold design?

Evil Aviator

Obviously designed by somebody who is totally clueless, which is fairly common. However, it appears the person at least tried to somewhat copy what was seen in performance magazines, and it certainly shows motivation, so at least that is good.

Oh, I know what the problem is, but it would be too difficult for me to describe it without getting a warning from the moderators.

blackrotary23

that was one of the first things that i tried to do. the manifold does not match up to the s4 block. on the s5 side manifold, they eliminate the center port at the bottom thus putting these two pieces together makes for fuel leakage resulting in numerous problems.

Omixeo

iTrader: (1)

Ditch the manifold on there now and get a functional S5 VDI intake on there. It will definitely make a difference.

stevensimon

iTrader: (11)

dyno sheet?

SoloII///M

iTrader: (13)

What on earth are you talking about?

NI_Racing

iTrader: (4)

Not to throw salt in any wounds or anything. I picked up an S4 NA that wouldnt idle. Fixed the vaccume issue, and took it to the dyno. The car was stock, gutted cats (no 5th/6th port) and a cone filter. Exhaust leaks and all the car dyno'd at 138 at the wheels with 123 torque. The graph clearly showed a drop of 6hp when the ports were posed to open. I am working on getting them back online and will let you know where its at with working ports and a cat delete pipe (minimal/no exhaust leaks). Hoping for close to 150.... but i doubt ill get it

HOZZMANRX7

iTrader: (43)

Stock engine
Apexi SAFCII
K&N Drop in Air Filter<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
RacingBeat manifold back exhaust<o:p></o:p>
RacingBeat Ultra Ignition Wires<o:p></o:p>


Graph indicates readings after initial SAFC adjustments and thebn final readings when the SAFC tuning was complete. The after - 138 horses and 110 torque made it past the TorquConverter and the rest of the drivetrane to the rear wheels.

Omixeo

iTrader: (1)

Hozzmans post contradicts the guy above him. I call BS on NI_Racing.

84stock

iTrader: (5)

hmmm, dreaming on the hp thing..it would take a bridgeport and a big weber sidedraft to get to 225+. My compliments to the effort and paint though..

HOZZMANRX7

iTrader: (43)

Careful comparing N1's numbers with my Autoverts as I would expect that the Automatic Tranny soaks up a lot more HP and Torque before it can get to the wheels than I would expect a manual tranny would.

I'll also mention that my S4 TurboVert with:

Full S4 TII drivetrane with stock engine block
S5 Turbo
Walbro Fuel Pump with dedicated power circuit
Racing Beat REV II Turbo back exhaust
Racing Beat Lighten Steel Flywheel and Street Strip Clutch
Racing Beat Ultra Ignition Wires
Racing Beat Oil Cap
K&N drop in Air Filter
Apexi Boost Controller

Tuned puts 199 hp and 196 Torque to the wheel. So I would agree your 225 hp expectation might have been a bit ambitious.

need RX7

iTrader: (4)

More like a street port and mad tuning skillz: https://www.rx7club.com/naturally-aspirated-performance-forum-220/make-230rwhp-streetport-13bre-n-818133/

rosey

iTrader: (1)

PLEASE PUT DOWN THE DRUGS!

There is nothing wrong with the dyno, your car is incredibly slow.

SirCygnus

iTrader: (1)

this is kahrens car ( old version )

he makes about 200 wheel hp with this setup. made some pretty good HP.

10yearrx7

iTrader: (2)

In my 10 AE I got 192hp to the wheels with only full racing beat exhaust and K&N drop in. I would love to push 250-300 though

katkaroto

you should have someone go dyno a stock FC vs your FC setup. i had a NA a while back. it probably had about 120 hp on it since emissions were all removed, the aux port were removed, and a custom fab single exhaust was put on. Also how are the gas on that car since you have the aux ports open. i remember my gas tank was sapped so fast when i had them open. about 1/4 gas gone in 30 miles... which wasnt suppose to happen.

well, either you shoot NOS, custom fab some ITBs and go stand alone, or go turbo fab. your numbers are right for your car.

KompressorLOgic

iTrader: (6)

stock port?

wrankin

Heh - good catch. From the kahren's other posts, that engine is most likely heavily street ported. That picture also looks a little odd - almost like a P-P setup. I can't see where the fuel goes in.

Omixeo

iTrader: (1)

Doesn't count. They're using a 13b-RE with custom porting. Whose ports are already infinity times bigger than the s4 stock ports to begin with.

SirCygnus

iTrader: (1)

you can see the fuel rail.

wrankin

Well I see the bottoms of what look to be the primary injectors and looking closer I think I see the back end of the secondary rail. But it certainly isn't clear.

-b

Aaron Cake

iTrader: (1)

I think I get what you are saying. The S5 irons don't have the EGR passages. But I don't know what it has to do with the issues you are having with your car...

RotaryRocket88

iTrader: (7)

Searching helps: http://homepage.mac.com/carldavis/intake.html

S5 manifolds on S4 engines is nothing new, and it is certainly a lot easier than making a fabbed manifold work.