I own a integra with a b18c motor and I was wondering how much more aggressive the b18c5 camshaft is from the b18c cam.. And if I were to swap too the b1bc5 cam would my stock valve train be able to hold the more aggressive cam or wear down?

 

well, it could take it, and it is more aggressive, but you will have to use stronger springs if you want to rev high enough to make use of the cam..

and really, unless you are getting the cames for free/dirt cheap, they are not worth it, when you can get some great aftermarket cams for a lil more..

 

Cams are a good investment if you back them up with a good tune and possibly increased compression. On a B18C1 with stock compression adding mild cams (ITR or stage 1 from a variety of manufacturers) can net decent power gains and extend your powerband. Gains will depend on the other mods present, the quality of the tune, and the specific cam, but a mild build can approach 190 whp.

I'd say you can probably do a bit better for the $$ than ITR/CTR. Check out Blox A cams if you don't mind running knockoffs. Skunk2 are also popular though pricier.

 

we're guessing you have a gsr since you're looking into ITR cams. the b18c part kind of throws a person since it could mean either motor. here are a few things to think about.

1. what you'll spend
2. how high you value reliability
3. how much power you want


the ITR cams are a great bolt on to a gsr head provided you buy itr intake valve springs and move your OE gsr intake springs to the exhaust. buy 16 new valve seals and replace while you're in there. you also will want a skunk/blox/edelbrock manifold and p73 basemap until a real tune can be done.

in my eyes cams are ITR or bumpstix. the stage 1-2-3 and every other marketed cam i just don't see a point for. the ITR cams don't break and set up perfect every time. sure the skunk1s are slightly larger but also break more often {not that skunks break often, that title belongs to crower} it's just you can build a 175whp engine with ITR cams without a lot of trouble. now on to my bumpstix suggestion. see if someone buys an entire new VT and has the compression, why bother with skunk 2s or blox b's when you can go straight to the jun3 based bumpstix for the same money. blox also has a very similar cam in their C's which do make great power i just personally would rather have endyn cams than blox.

 

I had a C5 and I agree

If they were near free and you had a nice 11.5-12.0 to 1 motor and wanted to rev ot say 9000 they would work great with valvetrain (springs/ret)

Its a good cam and works well....at stock 10.6ish comp they sort of die off aroudn 8100-8200 but with a comp boost you should be able to hike it up a few hundred rpm and rev just a little more to keep you in the sweet spot

Or just get some pro1's and make more power lol....or pro2's and own lol

 

I just realized we didn't really answer the OP's questions that well.

1) The ITR cam is more aggressive, but not a lot more aggressive. It is a large part of the 25 hp gain that the ITR sees (but not all of it) and puts 180 whp within reach (instead of, what, 165 or 170?). It also likes to rev, and you'll want to increase fuel cutoff to 8500 or 8600 with ITR cams to make full use of the powerband.

2) Your stock valvetrain can be run on ITR cams, but it's not necessarily a good idea. A cheap solution is to buy ITR intake valve springs, put them in the intake and move the GS-R dual intake springs to the exhaust side. This will also work for some, but not all 'stage 1' cams. Unfortunatly, Honda did not over-engineer the valve springs, but the rest of the valvetrain is fine for either cam.

To answer some questions you didn't ask -- there's not much point in swapping if you don't have or aren't planning to have full I/H/E mods (IM and TB excepted). Both ITR and stage 1 are OK for stock compression, but to go more aggressive you need more compression. And following cam install you will need a tune, like Idrive suggested.

 

My bad not for giving all my info..
B18c with Skunk 2 Pro Series intake manifold Aem V2 Intake and then greddy headers with an ecu from pherable.net

So if I were to go with the ITR i would see gains for a smaller amount of money but if wanted to spend the extra cash I would see more gains going with the blox a or b camshafts with the correct valvetrain and tune correct?

 

had itr cams in my gsr for over a year with the stock valve train. ran fine, no ticks, no knocks as long as you dont rev pass the stock gsr redline(8200rpm). but you will definetly need a chipped ecu tho. the stock gsr ecu will run it but not that well. since you already have a single runner IM, just get another chip tune to your specs.

 

That is correct. I'm not sure what the gains are from Blox A to B on stock compression. B might not do much extra for you. You'd also want cam gears if you get better than ITR or Stage 1 cams.

If you don't already have a high flow cat and some aftermarket catback, you should consider those because the cams won't help if you're limited by backpressure.

 

I have a straight pipe back 2 a greddy evo2.. So I would be getting Blox Type As and cam gears ? Plus springs and retainers?

 

what did pherable put on that ecu? a gsr map tuned for a single runner manifold? that will get you by but you should at least have a p73 map installed if you don't have a local shop around to dyno tune.

as you're starting to realize, this stuff is all about dollars. my vote is either

A: get ITR cams and spend $50 on oem yellow intake springs

B: buy jdm itr or p30 cast pistons and rehone, this ups the compression to 11-1 to 11:5-1 or so and run bumpstix, skunk pro 1s are another choice but the bumpstix almost always out power them. pro 1s are also extremely hard on valve guides.

just forget a's b's and everything else, the cost to benefit just doesn't make the sense of the above two options.

if you're really cheap blox c's perform similar to the bumpstix and cost less, they also break more often. many 200whp cars have been made with 11:5-1 compression and bumpstix or blox c's on plain jane unported heads. the all motor dyno thread has a few.