b19coupe

Car :1992 Civic VX.
Original engine: D15Z1.
Bought a used D16Z6 from a Del Sol for $200 from a Honda-Tech member and bolted it into the car. Tuned it. Advancing the cam helped the bottom end and mid range power, but power fell off hard after 6,500. Retarding the cam sacrificed low and mid range power, but made more top end~ 9 HP at 7,100 RPM. We decided to go with +1 on the cam-good bottom end without giving away too much up top. Surprisingly, this motor is making more than a few H4 cars that we have seen.


Mods:Ebay header(purchased from another H-T member), modified Integra LS mid pipe, modified 07 Civic SI muffler, AEM ITR CAI, STR cam gear, and a Hondata intake manifold gasket.
Tuned on a Hondata S300:


Throttle response is much improved from the D15Z1. Fuel economy remains to be seen...

Dann6968

Wow. That is very impressive for whp.

Are those dynos known to read high?

green99civic

very impressive man

Juan_Mitosis

WOW!!! Do these dynos read higher than dynojet? Those numbers are impressive. Can you really achieve that with adjustable cam gears on stock cams??? I've always had that question

CivicSpoon

It's BHP, not whp. Right above the graphs it says flywheel power and torque. Still impressive IMO.

BryanM.

iTrader: (1)

That is impressive even for BHP.

Hell, I was impressed with what you got out of the Z1 in your other thread.

iamthefollower

that is a good number, considering they come with 130bhp.. that isn't bad for just a few bolt on's...

b19coupe

Our dyno measures torque/power at the hubs, eliminating wheel and tire inertial losses. Add about 25 HP to a FWD Honda to approximate flywheel numbers. Here is a graph of the stock D15Z1 vs the tuned D16Z6:

I used paint to fix the caption at the top to remove the "flywheel HP" confusion.

ddd4114

Very impressive!

What was the header design? A DC knockoff?

b19coupe

CivicSpoon

I'm sorry, but I refuse to believe that you made that much power with a 1 degree timing advance and basic bolt-ons. That amount of horsepower at the flywheel I can believe. People use higher compressions pistons, an aftermarket cam, and bolt-ons, to see that kind of power at the wheels with a Z6. I'm not trying to be a jerk or be rude, I just think your dyno reads really high or isn't calibrated correctly. But if I'm wrong then kudos to you.

j0keefe21

thats insane power. hopefully my build will come out something like that

Unseen Racer

SICK!!!
wish i can make my y8 have that much hp on basic bolt ons.

1kleenef

So doesnt this mean that you would also subtract 25 HP from your final results making this look a lot more like 125 Hp instead of around 150?

ddd4114

No.

iamthefollower

It's not to the wheels.. it's to the flywheel.. all the power to the flywheel doesn't go to the wheels...

ALLxMOTOR EG

bigD

if you would read he posted it was power at the hubs not the flywheel

iamthefollower

that's not to the hubs.. that's to the flywheel, and thank you I did read his post...

ddd4114

teamworxek9

iTrader: (5)

not bad #s at all

iamthefollower

i'm still saying it's to the crank because he used paint to correct what the dyno said... that's why i'm still saying that..

andoxviii

iTrader: (1)

Wow, those are very nice numbers. Good job!

CivicSpoon

After a little bit of research, I found out that the Dynapack dynos do actually measure power at the hub. However, I think it's more of a calibration error, that's giving such larger numbers that it should be.

DaveSi677

I am a little secptical on the number they are very impressive but still those are really high for a bolt on Z6... he's not even running high compression pistons in there when most who do don't even see those number! I believe its to the flywheel... still nice numbers!