EG B18C Cross Over

[lsvtec]

i got a jap spec dc2 si engine in my eg and u cant really notice the cross over.

ive got exhaust and intake but still can not really notice it.

what can i do to have a loud cross over?

[R8D R]

what intake do u have?

cold air intake usually get u the mean crossover you want. get a injen!

[lsvtec]

just got a mugen copy

[JDM-EGG]

skunk2 Intake manifold , and throttle body , cams and a tune ur set !!

[Jump]

get a whale penis intake

[na-118]

vtec solenoid leaking?
how's oil condition?
what exhaust canon? if so that will take over vtec a little

[Toilet]

Even with I/H/E, a b18's crossover is still quite subtle. Maybe your expectations are too high :P

[dougie_504]

It means you have a smooth torque curve

[MM89]

B18c2's can also produce a VERY noticeable cross on I/h/e only. J's header and 60rs ti has arguably made the changeover into vtec more distinct than some of the b16's I've come across. I admit, not the best parts for ultimate power, but the topic of discussion here is the "crossover".

[lsvtec]

It means you have a smooth torque curve

thats a good thing

[markismaximus]

this has been covered so many times already

http://www.ozhonda.com/forum/showthread.php?131985-VTEC-crossover&highlight=crossover

http://www.ozhonda.com/forum/showthread.php?133267-help!!-want-to-hear-crossover-in-my-96-integra-vti-r&highlight=crossover

[dougie_504]

thats a good thing



Yes, that's what I meant...

[muzukashi]

fujitsubo/j's racing catback, skunk2 IM, injen cai and maybe a mugen/bc header and now you will have 1 loud ****er of a car :thumbsup:

[VTec1987]

what computer are u running?

[pablos8]

Alot of people are saying skunk2 IM and larger throttle body, are those mods straight bolt on without any other changes needed to be done to a stock b18c2 for them to be at their best ie a retune etc

[dougie_504]

IMO they're not worth it unless you've done head work to compliment the flow.

[VT3C]

a big VTEC "pop" is not nesc a GOOD thing.. and a B18C2 (still retaining the Dual-tract IM) has a barely noticable 'pop'.

If u upgrade the IM (recommended) to aSkunk2 or Edelbrock item, you WILL need to have a reprogramed ECU.. just keep that in mind - it's not just a ~$200 Intake Manifold.. it's plus ECU and tuning $$$$.

the higher up in the RPM range the Switch point is set, the more pronnounced the 'pop'.

[JDM-EGG]

a big VTEC "pop" is not nesc a GOOD thing.. and a B18C2 (still retaining the Dual-tract IM) has a barely noticable 'pop'.

If u upgrade the IM (recommended) to aSkunk2 or Edelbrock item, you WILL need to have a reprogramed ECU.. just keep that in mind - it's not just a ~$200 Intake Manifold.. it's plus ECU and tuning $$$$.

the higher up in the RPM range the Switch point is set, the more pronnounced the 'pop'.

what if you upgrade to IM skunk2 and dont use a repromgrammed ecu and tune ?

[VTec1987]

what if you upgrade to IM skunk2 and dont use a repromgrammed ecu and tune ?

car we run lyk shit, it makes sense because stock computer is tuned for that engine, by changing Im + Tb, car will not run as well...

it is known that b18c2 cross over is not aggressive as the b16a and b18cr

[pablos8]

Do you need to run an aftermarket ECU or can you just retune the stock ECU?

[dougie_504]

Stock ECU isn't tunable

[pablos8]

Stock ECU isn't tunable

Out of the hondatas which ECU is most suited to the b18c2?

[dc2r-0636]

wouldnt they all be most suited? just different features on the s300 then the s100. i think they stoped making the s200

[dougie_504]

I wouldn't get a Hondata unless I had upgraded the cam shafts and got some adjustable cam gears.

It's a very good quality ECU and does not come cheap, nor is the tuning labour.

[MM89]

Why do people always make the assumption that a p72 manifold doesn't produce a big "pop"

[cotties]

You can just change to a p72 ecu and it won't look for the secondary runners
I've got a stock b16 in my Crx with good headers and exhaust and cold air intake it pops real nice

[jdm_kid]

ITBs baby

vtec fell off

details on the car ? who done the conversion ?

[VT3C]

Why do people always make the assumption that a p72 manifold doesn't produce a big "pop"

erm because it doesnt LOL.. even with I/H/E there is only barely audible difference.
if your C2 with dual-tract IM pops, perhaps your rings are f**Ked LOL.. or your VTEC engagement point has been raised..


You can just change to a p72 ecu and it won't look for the secondary runners

P72 = VTiR/SiR-G ECU.. which WILL run in assumption that it has the standard IM with butterflies.
P73 = ITR ECU.. this wont be looking for Butterflies :P


I've got a stock b16 in my Crx with good headers and exhaust and cold air intake it pops real nice

B16's have a notoriously loud POP.. my Del sol just had intake and stock headers etc and man that thing has one of the loudest pop's i've heard when i was running the JDM P30 ECU with 5,800 switch point.. (AUS P30 is 5,500 switch).

[na-118]

Stock ECU isn't tunable

re map can be done

[pablos8]

Or apparently can be chipped?

[na-118]

hows the type r stephan

[pablos8]

hows the type r stephan

Epic hahahahahha makes me smile everytime I hit 6k hahahahahahahahahahahahaha

I might be buying skunk2 IM, Injen CAI and some other shit....... I DUNNO BRO

JDM front VS performance....

form vs function T_T what ya reckon

[lsvtec]

my ecu has been re mapppped

[VTec1987]

if u need ur ecu chip, pm me

[dougie_504]

re map can be done

Maps are different to specific tuning.



Or apparently can be chipped?

Yes, but IMO you're best to get the real thing.

[MM89]

erm because it doesnt LOL.. even with I/H/E there is only barely audible difference.
if your C2 with dual-tract IM pops, perhaps your rings are f**Ked LOL.. or your VTEC engagement point has been raised..


put simply, i've witnessed my "pop" change from a subtle b18c2 "pop" to a very aggressive, similar if not equivalent b16a crossover note.
this was after i changed to the J's Racing header and J's Racing 60RS catback, one AFTER the other. vtec engagement was not raised. The biggest
difference lied within the 60RS. That made the "pop" very evident.

i've played around with a few exhausts on the same engine, whether it be cheap or expensive, custom or branded. all i'm gonna say is, if you want a clean
and noticeable vtec crossover, a custom exhaust welded by a hungover welder is not gonna cut it - not for a b18c2 anyway. even now with the car tuned to s300
with a smooth power curve, the vtec engagement being same position, the vtec "pop" is still the same.

by the way, that's the first time i've heard of b18c2 vtec engaging "louder and more noticeable" because the rings are gone.

[lsvtec]

what about a jdm type r ecu? would it make a difference?

[pablos8]

I have a skunk2 IM, skunk2 68mm throttle body and Injen CAI going in the car tomorrow, should be awesome to hear/see/feel the difference :)

[lsvtec]

pablos tell us how it goes cos i wanna put the same mods on my car.

[pablos8]

Just got everything installed and I think it was well worth it, vtecs pop is quite loud lol, not hitting vtec much as its raining, but ill post some pics up later when I get home

[JDM-EGG]

What car do you have and motor?

[lsvtec]

pablos how much did it end up costing u all up and where did u buy ure parts from>?

[pablos8]

Vtir teggie

Got all my parts from the boys at JDMyard and installed at good performance yennora

Probably costed something like $1500ish including labour?
The upgrade to single stage vtec and larger tb was well worth it

[lsvtec]

yeah im getting what u did pablos, all the intake, should be finished by this weekend. CANT WAIT!

[pablos8]

Don't expect the cross over to be CRAZY loud but it'll be much louder than before, I did my full exhaust as well and it made it louder too lol

[quangsuke]

Vtir teggie

Got all my parts from the boys at JDMyard and installed at good performance yennora

Probably costed something like $1500ish including labour?
The upgrade to single stage vtec and larger tb was well worth it

since u upgraded to a larger throttle body, wouldn't u need a tune. is your running sluggish?

[NA-tastic]

sometimes you dont hear it was loud, when you're inside the car. Get a mate to drive it and you stand and watch..

[pablos8]

since u upgraded to a larger throttle body, wouldn't u need a tune. is your running sluggish?

Nah cars not running sluggish just a bit rich and that's also contributed by the skunk2 IM as well :(


sometimes you dont hear it was loud, when you're inside the car. Get a mate to drive it and you stand and watch..

It's loud with WOT and Windows down but I have heard much louder haha

[pablos8]

And I was also lucky to not get any idle issues with the skunk2 TB as apparently its a common thing to have a weird idle when used

[lsvtec]

just got my car back from hume mufflers and ive noticed the car is more responsive and more mid range, havent got around to installing the intake stuff yet.

[MikeyG]

when i had my ek b20vtec with b18c head, all stock the vtec was really really loud not sure if the 2L block helped :confused: highly doubt it tho... depends on the engine itself if its maintained well with proper oils and fluids

but my mate would had a eg b18c with skunk2 IM and type r TB with cai was outrageously loud on vtec dunno y but he had it tuned