anyone with type s cams - Honda Prelude Forum

ZexLude128 · 10-30-2001, 06:05 PM

i read somewhere in the forum that using these cams would mess up the USDM engine is that true? do u need new springs and retainers? do you need to adjust the valve clearance or is it just straight bolt-in? i need all the info you can give snce i'm gonna be spending over 500.any cheap places u guys know of also would help alot. thank you

71dsp · 10-30-2001, 06:16 PM

Depends on who you talk to. Sun and I both had our valve rockers eaten by TypeS cams, but then others say that they haven't had any trouble with them. Sun ran them with stock springs and retainers, and I ran mine with Web Cam springs and retainers.

Prelude-Type-S · 10-31-2001, 06:29 AM

no problems here. i'm using portflow valve springs and retainers. i believe that you should be fine with the stock valve spring.

zexlude128WIFE · 11-05-2001, 02:34 PM

R U planning on buying s cams and not telling me???? just kidding...i don't care...just let me know ahead of time otay? love u bye

Flavour · 11-05-2001, 02:45 PM

Quote:

Originally posted by zexlude128WIFE
R U planning on buying s cams and not telling me???? just kidding...i don't care...just let me know ahead of time otay? love u bye

LOL wtf??

anyways, I have the type-s cams as well with the portflow springs and titanium retainers and have no problems... I'm beginning to see a Canadian connection here...

pludeben · 11-05-2001, 02:46 PM

my friend just put in his type s cams, but he has a jdm h22, so i dont know if that makes a difference.

DYI01 · 11-05-2001, 03:02 PM

Quote:

Originally posted by zexlude128WIFE
R U planning on buying s cams and not telling me???? just kidding...i don't care...just let me know ahead of time otay? love u bye

HAHAHAHAHAHAHAHAHAHA...keeping him in check...LOL

Stage5Lude · 11-05-2001, 04:13 PM

i have them on for more than two years..now
and don't have any problems with them
i have stock internals

93SRVMAN · 11-05-2001, 09:33 PM

Quote:

Originally posted by Stage5Lude
i have them on for more than two years..now
and don't have any problems with them
i have stock internals

Yet another Canadian without problems.

preludeguy25 · 05-25-2011, 10:15 PM

what are your driving habits like for the ones running type s cams on an h22a valvetrain? do you take it up right to stock fuel cut off? i just picked up a set for a good price but on the fence about whether or not to do springs i'm not planning on raising rev limit just curious how safe i'll feel....

minilogoguy18 · 05-27-2011, 06:50 PM

I'd save a little more money and buy another cam, the type S aren't that much more aggressive than stock, not enough to warrant taking the time to install them IMO.

preludeguy25 · 05-27-2011, 10:57 PM

i just picked up a lower mileage h22a and already have it apart with the head off and just had valves ground and seats cut and resurfaced... i picked up a used set of type s cams for 200 bucks that barely show any wear on the vtec lobes. i'm just stuck on do i put them in or buy springs, or just forget about it cause i don't want to be another one with rocker arms chewed to ****. or do you guys think oil plays a role in that one as well? i'm just hesitant cause i just need something reliable but i do have a heavy foot. and would brian crower springs be too much that i'd have to do a manual tensioner at the same time?

minilogoguy18 · 05-30-2011, 06:08 PM

I have no personal experience with them but many have used them and not chewed up their rockers, I'd put my money on those who did F up their head it was because of something they did wrong. I do know though that the PDE heads which are the latter years for the 5th gen do have a different valve angle and some other casting differences as well as using a totally different LMA so that could play a part in it too.

merlinbadman · 06-01-2011, 05:14 AM

^^PDE heads were never used on 5th gens, only the Accord Type-R (in Europe and Japan anyway). I doubt the US was any different

H22a8 = P13 head same as JDM H22a, H22a2 and H22a5
H22a7 = PDE head
H22a (S-Spec & Type-S) = P5P head

The H22a8, H22a7, and S-Spec & Type-S H22a all use the same cams.

minilogoguy18 · 06-01-2011, 06:46 AM

^That has already been resolved since like 2007, search on H-T and you'll find people chiming in that they had PDE heads on their later year H22a's, it was even found on later year H23a VTEC engines while others had P13.

merlinbadman · 06-01-2011, 08:12 AM

I have previously read most of that info before I went and bought an ATR engine for my 4G. It seems that most reports about the latter USDM 5G's having the PDE head are simply hear-say. Obviously I do not live in the US and dont know US Ludes inside and out, but I can say that the UK and EU did not get the PDE head on anything other than the ATR. My 2000 H22a8 is one of the last European Preludes and it has a P13 head.

Quote:

Did some research- interesting... Head casting p/ns:
USDM:
93-96 VTEC Prelude: 12100-P13-000
97 Type SH Prelude: 12100-P13-000
97 Base Prelude: 12100-P5M-305
98-00 Base/SH Prelude: 12100-P5M-020

CD6 4D Accord Si-R: 12100-P13-000
CD8 2D Accord Si-R: 12100-P13-000
CL1 4D Accord Euro R: 12100-PDE-E00
CL2 Wagon Accord Si-R: 12100-PCF-010 (AWD DOHC H23A VTEC)
BB6 Prelude Si-R: 12100-P13-000

I found two for the BB6 Type S:
12100-P5P-305
12100-P5P-J01

I also found a 12100-P5M-010 for the Si-R. The second numbers appear to have come about at the same time the USDM p/n changed. I can only assume it corresponds with some minor casting change or similar.

To answer the original question, and for those to whom it is not obvious...

If you find a casting with a stamping of:

P13 = USDM H22A VTEC head or JDM Si-R 97 or earlier
P5M = USDM H22A VTEC head or JDM Si-R 98 or newer
PDE = JDM CL1 4D Accord Euro R
PCF = JDM CL2 Wagon Accord Si-R (AWD DOHC H23A VTEC)
P5P = JDM Prelude Type S or S-Spec

JDM H23A Vtec Blue Top Mystery Motor, True Facts, Questions? - Page 5 - Honda-Tech

But, like I say USDM lude may well have got the PDE head but I would think that unlikely when not even the JDM Preludes got it, and they save all the best stuff for themselves.

Edit - I just got what you meant by "later year H22a's" as in JDM engines not USDM. We see lots of stock imported Ludes in the UK and I have never seen a factory fitted PDE head on a Lude, nor even heard of it.