Jump to content

So what's the hot set up for H2? B16 / B20


Recommended Posts

Posted

I've heard a few good arguments for the B20 but I've heard the B16 with the R cams is another great option.

 

Anybody care to weigh in on this?

Posted

it is to early to really tell, the motors just haven't had development in the form they will run in in H2. With the exception being the b18a/b, as i don't think the IM is going to make huge differences.

 

 

I would be really careful about using that as a judge. The person driving the car should be/is why the car/motor combo is winning.

 

 

On paper the b18/20 looks to be strong. But it owuld be interesting to see a full IT type build on a b16a plus the other allowed mods. The motor was a back marker in ITS, and every else has been heavily modified. So really to early to tell IMO.

Posted

we choose to build our car with a japanese B16A. They are cheap and ton's of them around.

 

We tossed some ITR cams, intake manifold and throttle body on there and it makes pretty decent power. dyno's 154whp @ Blacktrax (dynapack, reads low compared to dynojet)

 

Each car/engine combo will take a different driving style and approach. The B16 is fast, but you have to keep it up in the revs, because below 6000 its gutless. You must maintain your corner speed and get a good exit, otherwise the bigger 1.8 and 2.0l B-series engine's catch up!

 

I think the B18C5's are gonna be slower because of their heavy min weight of 2500 lbs. the cheap b16's and b18/b20's are gonna have a slight disadvantage due to weight quite a bit less.

 

i can't wait too see how the year is going to pan out in h2. it looks like a good competitive class.

Posted

Keep in mind that when you talk hp vs torque and higher weight/hp vs lower weight/hp, it is very track dependent which setup will be fastest. I think that both motors have the ability to be better on specific tracks than the other. I'm betting on the B20 being faster for our tracks here in AZ. I'd bet it would also work better at Cal Speedway and possibly Infineon. I think Buttonwillow is a toss up and WS and T-hill would likely favor the B16. At tracks like WS or MMP, a heavier setup with more horsepower (like ITR in H2) might actually be faster than a lighter setup with the same weight to hp ratio. Like Jimmy said though, it's going to primarily come down to the driver and the rest of the car prep.

 

I guess only time will tell once good drivers in good cars start building these things to the limit of the rules.

Posted

Tuff one I think the gsr will be good because you get type R cams still and you get a weight break from the B18C5 I think the GSR will me a nice middle ground between power and weight. and it should make 95% of the power of a type R.

Posted

A conservatively tuned B18C5 should put out ~190-195 whp and ~130-135 ft/lbs of torque with stock cams, head, intake manifold, and bottom end, with a rev limit of ~9,100 rpm.

 

It's all dependent upon the vehicle, and how much the engine is built to the H2 specs. The above numbers are from my street B18C5 engine, with a cat, header, intake, mugen headgasket, hondata intake manifold gasket and a Hondata tune.

Posted

B18c5 is out of the question. I think paying $5k for it is just gross. If I was willing to spend that kind of coin I'd either run H1 or AI

 

I think the gsr will be good because you get type R cams still and you get a weight break

 

How is this legal? I thought the GSR had to keep stock cams?

 

getting back on track I was keeping this between the 20 & 16 for cost. These are the 2 cheapest swaps.

I'm thinking the B20 is the more forgiving engine for this rookie

Posted
B18c5 is out of the question. I think paying $5k for it is just gross. If I was willing to spend that kind of coin I'd either run H1 or AI

 

I think the gsr will be good because you get type R cams still and you get a weight break

 

How is this legal? I thought the GSR had to keep stock cams?

 

getting back on track I was keeping this between the 20 & 16 for cost. These are the 2 cheapest swaps.

I'm thinking the B20 is the more forgiving engine for this rookie

 

As per the HC rule set for H2:

 

All Honda/Acura All B18C1 OEM Cam, OEM ITR or Blox “ITR” Style Manifold Allowed 11.1:1 2400

 

Looks like they have to have the stock B18C1 cams installed.

Posted

An important thing to remember is this isn't drag racing. Power is only part of the game. Weight kills EVERYTHING, acceleration, braking, and lateral grip.

 

I REALLY REALLY love the low HP, low TQ, and low weight combo. It is really easy on equipment, as you just weigh less, and i like the challenge. Within reason of course, IMO the SOHC motors are just out of the question for H1 and H2.

 

I tend to have a more open mind then scott on the motors and tracks. Because of the open-ness of the tranny rules in H2 every one can be on the same playing field, sort of. A b16 simply needs a 4.9FD and a bumped rev limiter and that motor will be GREAT. That same tranny with the stock FD is great on the B20 and LS. And for the b18c the 4.7 is great, some really like it for the b18/20 also.

Posted
Tuff one I think the gsr will be good because you get type R cams still and you get a weight break from the B18C5 I think the GSR will me a nice middle ground between power and weight. and it should make 95% of the power of a type R.

 

I don't think the Type R cams are allowed with the B18C1 (unless there was an addendum to the rules that I haven't read, which is HIGHLY possible.) However, OEM cams with a "Type R" Style manifold or Blox manifold IS allowed.

 

jmeris

Posted

i agree with Jimmy on the low hp/low tq and low weight. definetly the setup id prefer for h2!

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...