CTR cams in b16a1
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Joined: Apr 2005
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From: Baltimore, MD, USA
CTR cams in b16a1
A friend of mine has a brand new set of CTR camshafts that he wants to sell to me for $200. I have currently a B16A1 swap going into my 88 CRX and would like to try these but I would also like to know if putting in the full valvetrain from a CTR or ITR would be the best bet. I know if I swapped in the ITR cams I would have to swap valvetrain also but being from a B16 I'm not too sure. Also what kind of power gains would I be looking at with these. If anyone has any info for me I would appreciate it.
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From: Hilo, Hawaii
Re: CTR cams in b16a1 (BigAnold)
CTR cams would be an excellent upgrade. I would highly suggest changing out the stock B16 valvetrain for ITR parts. Also to get the most gains out of the cams, I also suggest at least I/H/E, adjustable cam gears, and a trip to a dyno for some tuning. As for hp figures, I netted 156 hp with CTR cams, I/H/E, adjustable fpr, ITR intake manifold, and a chipped ecu. Might have made more if I played around with some cam gears.
Crazy Honda Guy
Joined: Sep 2003
Posts: 8,025
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From: Calgary, AB, Canada
CTR cams are great. All you need is the ITR or CTR lost motion assemblies. Don't worry about the valvesprings. The B16 ones are just as beefy, after all the B16 valves weight slightly more, so the springs are already very strong.
As far as Intake manifold, a ported P30 manifold will make the best hp, more than the type r in fact.
As far as Intake manifold, a ported P30 manifold will make the best hp, more than the type r in fact.
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Joined: Apr 2005
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From: Baltimore, MD, USA
Sweet, I actually was getting the head off to the machine shop to get the valves done since the mottor had been sitting for a while but I figured might as well get as much done as possible while the head is off. I already have a cat-back greddy that came with the parts car and an Apex'i VAFCII I had for the mini-me, but no header or air intake. I also just ordered a tranny from boosted dohc rex who was very helpful and shipped next day. Thanks for the help again. When I finish in about 2 weeks I'll post up some numbers, hopefully I'll have it ready for Import weekend in Ocean City.
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From: WI, U.S.A.
Re: (b20vtechatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b20vtechatch »</TD></TR><TR><TD CLASS="quote">if i get ctr cams for my b16 head do i get oem itr valves and springs will it all fit right in? this is for m b20vtec turbo set up.</TD></TR></TABLE>
yes it will fit and just to let u know u can run ctr or itr cams on stock vavle train just dont rev past the stock redline
yes it will fit and just to let u know u can run ctr or itr cams on stock vavle train just dont rev past the stock redline
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Re: (Deetz)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Deetz »</TD></TR><TR><TD CLASS="quote">CTR cams are great. All you need is the ITR or CTR lost motion assemblies. Don't worry about the valvesprings. The B16 ones are just as beefy, after all the B16 valves weight slightly more, so the springs are already very strong.
As far as Intake manifold, a ported P30 manifold will make the best hp, more than the type r in fact.</TD></TR></TABLE>
A little misinfo here.
Yes, you are right about getting the CTR/ITR lost motion assemblies. They will take the RPM much more easily. However, the springs ARE an upgrade. The first gen B16A has dual valve springs on the intake side only, so theoretically you should upgrade to ITR spec springs. Not to mention that the newest first gen B16A is now about 14 years old. I don't know about the valve weights though, you could be right there.
Also, the best bang for the buck manifold is the AEBS. Outperforms ITR quite handily, with no porting.
As far as Intake manifold, a ported P30 manifold will make the best hp, more than the type r in fact.</TD></TR></TABLE>
A little misinfo here.
Yes, you are right about getting the CTR/ITR lost motion assemblies. They will take the RPM much more easily. However, the springs ARE an upgrade. The first gen B16A has dual valve springs on the intake side only, so theoretically you should upgrade to ITR spec springs. Not to mention that the newest first gen B16A is now about 14 years old. I don't know about the valve weights though, you could be right there.
Also, the best bang for the buck manifold is the AEBS. Outperforms ITR quite handily, with no porting.
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Crazy Honda Guy
Joined: Sep 2003
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From: Calgary, AB, Canada
Re: (Mr. S)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr. S »</TD></TR><TR><TD CLASS="quote">
A little misinfo here.
Yes, you are right about getting the CTR/ITR lost motion assemblies. They will take the RPM much more easily. However, the springs ARE an upgrade. The first gen B16A has dual valve springs on the intake side only, so theoretically you should upgrade to ITR spec springs. Not to mention that the newest first gen B16A is now about 14 years old. I don't know about the valve weights though, you could be right there.
Also, the best bang for the buck manifold is the AEBS. Outperforms ITR quite handily, with no porting.</TD></TR></TABLE>
There is a lot contravery over stock b16a valvesprings vs itr valvesprings. I should really find out some way to measure the strength of both. ITR springs do come on an engine that revs about 1000rpm higher, and is designed to run a valves that is lighter in weight. A B16 runs slightly less rpm but runs heavier valves, which many believe are actually stronger than the ITR's. I truely don't know thae answer for sure, but have never run into a valvetrian problem on a b16 due to valvefloat.
I should have stated earlier that all JDM B16's have both the dual valve springs on both sides like the ITR, the US models do not!
As far as the AEBS intake manifold goes, its cheap and works well. The downsides
are that it is cheaply built. I have sold many of them. I have a number of them come back due to cracking around where the TB mounts. If you even slightly overtighten any bolts, the manifold will crack.
The casting is often dirty and has a number of spots where extra material is left over. I have mixed feelings about it. 
A little misinfo here.
Yes, you are right about getting the CTR/ITR lost motion assemblies. They will take the RPM much more easily. However, the springs ARE an upgrade. The first gen B16A has dual valve springs on the intake side only, so theoretically you should upgrade to ITR spec springs. Not to mention that the newest first gen B16A is now about 14 years old. I don't know about the valve weights though, you could be right there.
Also, the best bang for the buck manifold is the AEBS. Outperforms ITR quite handily, with no porting.</TD></TR></TABLE>
There is a lot contravery over stock b16a valvesprings vs itr valvesprings. I should really find out some way to measure the strength of both. ITR springs do come on an engine that revs about 1000rpm higher, and is designed to run a valves that is lighter in weight. A B16 runs slightly less rpm but runs heavier valves, which many believe are actually stronger than the ITR's. I truely don't know thae answer for sure, but have never run into a valvetrian problem on a b16 due to valvefloat.
I should have stated earlier that all JDM B16's have both the dual valve springs on both sides like the ITR, the US models do not!
As far as the AEBS intake manifold goes, its cheap and works well. The downsides
are that it is cheaply built. I have sold many of them. I have a number of them come back due to cracking around where the TB mounts. If you even slightly overtighten any bolts, the manifold will crack.
The casting is often dirty and has a number of spots where extra material is left over. I have mixed feelings about it.
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From: Mid East Deserts
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Re: LMAs (ef92b)
ITR valvesprings woudl be a great upgrade, but honestly, unless you buy used, its not worth the price IMO, since you can get omnipower's or something better for almost the same price, or maybe $50 more.
it seems you maybe be on a budget, in that case.. lma's and so forth may not be the best way for you to spend your money.. of course if you get a great deal on them. by all means. but realize they arae not necessary by any means other than less noise. your stock lma's can handle at least 8500 rpm, and you shouldnt need to worry about going much higher on ctr cams anyways.
also changing valves requires you to remove the head. once you pull that off.. might as well do alot of things.. valve job, mill, hi comp valves, head work, new gaskets and seals, timing belt, etc etc.. do you see what im getting at? ALOT MORE money than the $200 you originally thought was all you had to spend. and THEN, geez all that money just for CTR cams? should have just got skunks or blox.
my advice to you: keep it simple. if you are on a tight budget, Keep your stock b16 intake valvesprings, and swap them to the exhaust side. and you only need to buy ITR intake valvesprings to replace them on the intake side. you can see about 10 whp with the cams if you already have IHE and some form of tuned ECU. It you are not doing the labor, look to spend about $280 on the cam and valvespring installation. you may also look into buying a new timing belt and cam gears, as well as some dyno time. but again.. its not neccesary so do what your budget limits you to.
i had a set on my stock b16. left my cam gears at 0,0. it feels ALOT better.. sounds better too. it's like the b16 should have been that way stock
BTW stock b16 valvesprings CAN work. but not reccomended. you should have at least a stock dual valvespring setup on your exhaust side.
it seems you maybe be on a budget, in that case.. lma's and so forth may not be the best way for you to spend your money.. of course if you get a great deal on them. by all means. but realize they arae not necessary by any means other than less noise. your stock lma's can handle at least 8500 rpm, and you shouldnt need to worry about going much higher on ctr cams anyways.
also changing valves requires you to remove the head. once you pull that off.. might as well do alot of things.. valve job, mill, hi comp valves, head work, new gaskets and seals, timing belt, etc etc.. do you see what im getting at? ALOT MORE money than the $200 you originally thought was all you had to spend. and THEN, geez all that money just for CTR cams? should have just got skunks or blox.
my advice to you: keep it simple. if you are on a tight budget, Keep your stock b16 intake valvesprings, and swap them to the exhaust side. and you only need to buy ITR intake valvesprings to replace them on the intake side. you can see about 10 whp with the cams if you already have IHE and some form of tuned ECU. It you are not doing the labor, look to spend about $280 on the cam and valvespring installation. you may also look into buying a new timing belt and cam gears, as well as some dyno time. but again.. its not neccesary so do what your budget limits you to.
i had a set on my stock b16. left my cam gears at 0,0. it feels ALOT better.. sounds better too. it's like the b16 should have been that way stock
BTW stock b16 valvesprings CAN work. but not reccomended. you should have at least a stock dual valvespring setup on your exhaust side.
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