Hi,

I am allready reading the forums for a while, but thought it was time to introduce myself.

My name is Niels aka Nylez and i'm from the Netherlands.
Currently i drive a 1998 Civic Coupe with a semi-build B18C engine.

Mijn previous car, EK4 R.I.P. @ Nurburgring

When i bought it, almost bone stock.




Mods:

Intake;
*Skunk2 Pro Series intake Manifold
*Blox 68mm Throttle Body
*Hondata IM Gasket
*Coolchamber

Engine;
*OEM CTR '00 spec camshafts
*OEM CTR '00 spec valvesprings
*OEM CTR '00 spec spring-retainer
*310cc Precision Injectors
*P30 ECU tuned by Bekerom Tuning

Exhaust;
*Hytech Tri-Y 4-2-2-1 Small-tube
*Invidia testpipe
*Invidia GT300 Catback

Suspension;
*K-sports full adjustable shocks
*Stock EK4 sway- and strut-bars

Brakes;
*Nitrac 282mm 16-Groove brake disc
*MG brake calipers
*EBC Yellowstuff brake pads

Exterior;
*OEM EK9 Spoiler
*OEM EK9 Rear Bumper Lip
*OEM EK9 Window Visors

Interior;
*OEM EK9 Red Recaro's
*OEM EK9 Red door-panels
*Stripped out back

Wheels;
*Volk TE37 15x6,5J ET42 4x100 white





After the crash (not my own fault... )




So it was time for something else
1998 Civic Coupé (still my daily drive....)





Mods:

Intake;

*BLOX Velocity stack + 3" APE intake
*Professional Products 65mm tapered & portmatched
*Edelbrock performer X intake manifold
*310cc Precision injectors
*Hondata heatshield gasket

Engine;

*Completely rebuild '98spec B18C
(newly honed, new rings, seals, bearings, etc)
*Milled deck & head
(~11.7:1 CP)
*Buddyclub Spec III+ cams
*Spoon oil-cap
*Spoon radiatorcap
*Skunk2 VTEC solenoid cover
*Skunk2 cam-seal
*Hasport engine mounts
*SRR oil catch can
*SRR coolant reservoir
*SRR cam-gears
*Baffled Sump weld-in
*Magnetic drain bolts
*Walbro fuel-pump
*Gates racing kevlar timingbelt
*Arospeed groundwire kit
*OEM Type R (red) valve cover
*Kevlar plugwire cover
*Taylor battery relocater kit
*Fidanza flywheel
*ACT Street-disc clutch
*S80 short ratio gear box with KaAz Final Drive and KaAz 1.5Way LSD
*ITR shift-linkage with short-shifter and shifter-extension
*P30 ECU tuned by Bekerom Tuning

Exhaust;

*RMF replica header
*Adjustable testpipe
*Invidia GT300 (N1) catback

Suspension;

*KW variant 2 shocks
*Energy Suspension Hyperflex Bushing Kits
*Summit 4 point upper rear strut
*Suspension Techniques rear anti swaybar
*ASR subframe brace rear
*H-brace subframe brace front
*Carbing 3 point strutbrace upper front + brakestopper
*B-pillar floorbar

Brakes;

*NITRAC 282mm Grooved discs
*OEM EK9 Brake Calipers
*Ferodo DS2500 brakepads

Wheels;

*1 set 16" 5zigen ProRacer GN+ bronze (will be coated)
*1 set 16" 5zigen ProRacer GN+ coated RSP Racing black
*1 set 15" OZ Superleggera with R888's (track-days)
*Toyo Proxes R1R 205/45/16
*Lightweight aluminum Wheel Nuts

Exterior;

*EK9 Frontlip (wings west)
*Type R grill
*EK9 headlights
*OEM wind visors
*Carbon hood
*AeroCatch hoodpins
*Sideskirts and side-strips in colour

Interior;

*Lancer EVO VII Recaro's
*Sparco suede steering-wheel
*EK9 cluster
*EK9 shiftboot
*DC2 shiftknob
*VDO oil pressure gauge
*VDO oil temp. gauge
*VDO water temp. gauge
*R-Spec vtec controller (JDM DC2 option)

Some shots at the ring:








We tuned the car on the dyno with the following results:



211 Eng-Hp @ 8200 toeren
189 Eng-Nm @ 7600 toeren

As you can see the numbers seem to be a little low,
also the torque seems to fall off after 7500 rpm.

We allready eleminated the following things:

- Intake-pipe
(used other intake pipe with almost identical results)
- Throttle-body
(used 4 different ones of which current one performed the best but all with 4-5hp)
- Cam-timing
(cams are dialed in)
- Exhaust
(open-header run shows similar results)

Things still open to be suspected:

- Intake-manifold
(however should be one of the best out there)
- Header
- Cams

If anybody has any ideas what might be wrong or limiting flow here, please let me know!

Looking forward to read and hopefully also post some usefull information here!


With special thanks to:

- Rising Sun Performance
- Assitch
- Bekerom Tuning
- HonTEC

 

That looks about right with your cams. Torque fell about 7500 with them in my b16.

 

change back to the Hytech Tri-Y 4-2-2-1 Small-tube header
upgrade cams to skunk tuner2/pro2, rocket m22x, BC4
keep the px manifold or try a ported ITR

goog looking graph! a fat one like this worth more then a peaky/skinny one

 

I agree, it has to do with the Spec 3+ cams plus the long runners from the Performer X will limit it also. Even with bigger cams and the Performer X, from the grapsh i've seen it still peaks around there or by 8500 rpms and under.

 

Wow! Thanks for the quick replies!
I agree a fat graph is better then a peak-hp graph.
And the car drives and feels like a charm, so im not complaining.
Just been told that i could expect a little higher numbers.

So you don't think there is something else limiting the flow and it is probably caused by the BC3+ cams themself?

Maybe with one or two extra degrees on the intake-cam it could still gain a few hp.
Right now it is dialed-in at the Buddyclub specifications.

@koczeka;

I've been looking at the BC4's as well, but i've been told they are too big for my setup.

 

must be awesome running @ Nurburgring. something the majority of us will never get to do.

think those pX runners are killing your torque some, might wanna look at a ported ITR or look into modifying your pX to shorten the runners

 

Your graph actually looks about right for those cams. They stop making power at about 7500-8000rpm.
What valve train are you running to handle 9000rpm?
One thing to think about is with some of the other cams listed above you will lose some low end torque.
Has you head had any work done to it? Or is it still ITR stock?
Keep the Performer X.
Skunk2 Pro1 with Supertech or Skunk2 Valve train will be very nice on your set-up.

 

Cam has a lot to do with it but I thought the design of the intake has a big effect on the powerband?

His valves should be fine OEM is best

 

i notice your torque is mesure with N m not lbs....

 

You have small cams.. thats about right for those sized cams for that torque dropping off.

 

thats actually a pretty damn nice graph, you are holding torque alot higher than most mild builds.

and since you have run your cars on the Ring you are about 100x more cool than 93% of us lol

 

Thanks guys!

Yes running on the Ring is an experience that nothing else can even get close to!
With the EK4, which i loved and still miss, the first Ring experience was done and soon alot more laps followed! Unfortunately because of another ones fault it got wrecked...

Now the Coupe has also allready seen plenty of laps!
First with a ~190Hp B16, and now with the B18C.
Wrt the EK4 the overal stability of the Coupe is much better, and more predictable.

It is not that i am unsatisfied with the graph, i just wish i could hold on to that torque a little longer and it would be an even better running engine!

@ OH_1fstgsr
I run OEM ITR valvetrain, OEM valves, OEM retainers, OEM springs.

Doubting if i should switch to BC4's....
Would the compression be enough for that?

 

Yes you have enough compression but not enough valvetrain.

 

welcome fellow dutchman

cams and intake limits peak power

 

Im sorry for not mentioning but offcourse i would also upgrade the valvetrain if i switch to BC4's.

@wolve;

Thanks!!
Agree it wont give extreme peak power but the gains are significant especially mid-range.