Why A B16b Rather Than B18c In The EK9?


rinnaye said:
Outside of a few rather trollish replies, I'd have to say indeed. Thanks!

From what I gather so far, it seems the consensus would point to the biggest reasons why Honda chose to go with a de-stroked version of their most venerable engine, was to keep things in perspective, by not out doing their flagship sports car, with the likes of a lesser model, and also to have a model that would be able to compete on the 1600cc racing circuits.
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That's pretty much it.

The link answer your questions on traction, straight line speed etc?

rs250nut said:
You are most of the time, most peeps on this forum are more concerned if their jdm bling looks bad man, and if it is possible if they can have da boostzzzzzzzzzz, ya get me bruv
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Does seem to be going that way sometimes!
 
rs250nut said:
You are most of the time, most peeps on this forum are more concerned if their jdm bling looks bad man, and if it is possible if they can have da boostzzzzzzzzzz, ya get me bruv
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lol
 
Kozy said:
That's pretty much it.

The link answer your questions on traction, straight line speed etc?



Does seem to be going that way sometimes!
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Looking at the site, I'm a bit confused about a couple things. It shows a few stats, e,g. horsepower. If the stat on the left (chassis 1), represents a B16b, then it shows an inaccurate hp representation at 174 hp, versus the actual 185 hp that the B16b really produces, and I don't see how those hp numbers can be revised.

Maybe you can advise me on how to use the site more effectively.

Thanks
 
The B16B is actually 182bhp (185ps). The peak torque should be 118lbft and you can tweak the curve value to get the power value you want, looks like 100 should be 70. If you hadn't realised, you can change all the cyan coloured values, when you do and push enter everything updates automatically. (You need to be looking at this on a decent desktop browser by the way, bit slow on mobiles and won't work at all on IE)

I'll up date the defaults to 118lbft and 182bhp later.
 
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OK updated it. Closest I can get it is 180bhp at 8300rpm for the B16B and 195bhp at 8000rpm for the B18C.

Chuck your weight values and gear ratios in and see how the two engines would compare. The wheel torque chart cuts off in the lower gears where wheel spin would occur.

The engine controls are a bit crude I know, but it's only an educational resource, not a professional lap time simulation. :)

And in fairness, it does look like the B18C with a 98 Spec box puts down a fair whack more torque to the wheels, which would indeed give you some traction issues in a light car.
 
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I have a B18C 203bhp lump in a Metro... no traction issues unless you deliberately try... 150lbft is **** all anyway lol.
 
Kozy said:
OK updated it. Closest I can get it is 180bhp at 8300rpm for the B16B and 195bhp at 8000rpm for the B18C.

Chuck your weight values and gear ratios in and see how the two engines would compare. The wheel torque chart cuts off in the lower gears where wheel spin would occur.

The engine controls are a bit crude I know, but it's only an educational resource, not a professional lap time simulation. :)

And in fairness, it does look like the B18C with a 98 Spec box puts down a fair whack more torque to the wheels, which would indeed give you some traction issues in a light car.
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Just how much traction issues would be my question.

I played with the site again, but for some reason, I couldn't get it to calculate any results. I'll try again later, when I have a bit more time. Thanks.
 
rinnaye said:
Thanks for the compliments, and for the sound advice.

From earlier reading, I came across a story about how too much torque in a lighter chassis Civic may lead to the driver ending up in a ditch, coming out of a curve, thanks to having too much torque, which is yet another reason why it may make better sense to keep the B16b. Not my experience, but does seem logical.
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Lmao the b18c doesnt have enought torque to get out of the driveway let alone put you in a ditch.

Doesnt matter how light you are, the cars have so little torque anyway 15lbft wont make you spin up and understeer of the road into a ditch, its 15lbft not 1500lbft!

Run some half good tyres and you wont have any problems.
 
As above. I run 888's on track and I can't break traction in a straight line, even in 1st gear lol b18c with shorter gearing aswell.
 
with the 9 I have whellspin after shift into 2nd gear when the street goes downhill. Maybe the Tyres are bad. 2013 Toyo proxes and standard B16B w/o modifications. BC coilovers w/o heavy camber.
 
I run 3degrees camber up front and still no wheel spin.
 
Wouldnt worry about 1st to 2nd gear wheel spin unless you always doing traffic light grand prix. Just apply the gas smoother.

With Kumho KU36 1st to 2nd no spin.
 
I found the b16b to be the better all round engine tbh. They sound better on vtec, the crosser over you can feel more. B16b are not to messed with when modded right. The most common thing that is forgotton is gearbox mods. I ran a s80 with 4.7 fd and ek9 4th and 5th and i cought my mate up in a dc5. Me and my mates couldn't belive it. I only had a true 2.5" custom exhaust, manifold, and stripped out.

If i decide to keep my 9 i will do this mod stright away. Been debating with the idea for a while.

I think its all down to personal choice. The b18c is a really good engine also but they tend to be know for bottom end failures and excessive oil usage. The crossover isn't that exciting compared to the b16b. This can be sorted with ek9 cams. I knoticed when i was running a b18c bottom end and ek9 head cams ect, it still wasen't as aggresive as the b16b. There is alot more low down torque though and they go very well.

This is a thing that only you can decide. But as tam said k20r is the ultimate.
 
I'd say B16B as its "raw", shorter stroke, amazing revs and reliability.

K20 is an expensive route, much fun to be had with a B16B!
 
X2 personally I loved the b16b in my old ek9, fantastic engine and didn't burn a drop of oil like the average b18c these days

My b16b made 204bhp mapped by Henry Roy with bolt ons :). With the right gearing they will surprise most bigger engined na Hondas
 
^ this. All b18's smoke alittle on track or under hard abuse. B16b's that I've been around nothing at all. Not much in it from a numbers front as said afew hp and 15ftlbs is nothing really.
 
Hey all,

Really appreciate all of the kind replies, and very informative posts on both the ITR, and CTR. Of the many sites I've visited, I can honestly say it is here, in this forum, where I find it to be a great example of members whom do indeed possess a particular higher level of competence, knowledge, and real world experience in all things advanced Honda engine technology. The ITR is as well, a beautiful engine, and anyone running it, or the K-20 are probably anything but disappointed, but thanks to the many of you here, I am sure I've made the absolute best decision for my particular needs in going with the B16b.

Thanks Again!

Rene
 
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