camshaft spec recommendations?

[p5sundevil]

The other cam thread got me thinkin. I am getting my header within a month and soon after the underdrive pulley but then comes the cams, according to my current plan.

SO I wanted to know what suggestions people who have had custom cams used as to what I should have my cams ground too.
I am not sure if I am picking up some blanks or if I will purchase some stock cams from a recked car or somethin and have those ground(dont know if one is better way to go?)

So any helpfull info is appreciated.

[igdrasil]

Im not an expert...
but...you should try advanced timing and longer duration on the intake cam

[igdrasil]

Looking at your Future mods...everything looks good except for the underdrive pulleys.

do you have pics of your ride ?

[p5sundevil]

why does the pulley sound bad?

I dont have pics yet, I am driving back from Washington to Arizona in a week so once I get down there and install the 10 or so mods I have waiting for me I will take some then.

I am probably going to go all motor for as long as possible. Which is why I havent gone with a header yet, but i I can either sell it later or skip turbo and go with a small shot of n2o.

My ideal setup would be a spool stage2 w/stagex ecu and intake manifold as well as an NX ntercooler setup to throw some co2 into the intercooler and give it a little extra boost.

I figured this would be my order...
intake-exhaust-header-pulley-cams-flywheel-clutch
all the while I will add the urethane motor mounts and ground wire system in there.

At that point is where I will make the decision to stay N/A go turbo or go with a shot of gas =)
btw this is all engine mods, i also am doing suspension and some appearance mods also.

[twilightprotege]

yep i'm all for underdrive pulley's too. they are a fantastic idea...anyway, down the track i'm going to have me engine fully balanced so there will be no need at all for a harmonic balancer.

p5sundevil, what do you want your powerband to be? ps, eventually my oem cams will be for sale if you're interested

[p5sundevil]

Ill be interested in your OEM's just let me know.

Well I want a decent amount of power N/A, meaning Id like to at least hit the Jspec engine hp marks. at that point is when Ill decide to stay N/A, go with n20 or strat with a turbo kit, obviously highly dependant on my financial situation at the time.

As far as power band, i want at least some low end power in there cause I do like to get up off the line decently, but i do realize alot of these mods tends to puch the peak up the band a little each time. hm, maybe if I save for a while I can do the spool strater kit at 4.5psi and get the intercooler later. =/

[twilightprotege]

something like what i'm going for would be your best option. should be all round power, with the engine starting to really kick on from 3000rpm onwards. very good na power, but work very well with turbo too. i'm getting 254deg @ 0.006" 222deg@0.050" and 0.355" of lift for both intake and exhaust. now combined with head porting, you should be looking at 30+ whp. cams alone, around 15-20whp. i'm still not 100% sure if i will be getting head work done at the same time i put my new cams in, but if i dont, i'll definately get a dyno done to show everyone what gains i've experienced

later

[igdrasil]

Originally posted by twilightprotege
something like what i'm going for would be your best option. should be all round power, with the engine starting to really kick on from 3000rpm onwards. very good na power, but work very well with turbo too. i'm getting 254deg @ 0.006" 222deg@0.050" and 0.355" of lift for both intake and exhaust. now combined with head porting, you should be looking at 30+ whp. cams alone, around 15-20whp. i'm still not 100% sure if i will be getting head work done at the same time i put my new cams in, but if i dont, i'll definately get a dyno done to show everyone what gains i've experienced

later

this is good to know....waiting for results

[twilightprotege]

for me anyway, i think what will be most interesting is the gains i experience with really such minimal, simple and pretty cheap mods.

[DooMer_MP3]

I look forward to hearing about your gains twilight, especially if you do it in more of a phase (cams first, then head work). I imagine you can just drop the cams in there first to see what happens and then go onto head work, as dropping in cams is relatively easy.

Chris

[twilightprotege]

i would like to do it in two phases as a dyno run at a place i know is only $25aussie (around $17usd), but the chances of me having a replacement car while i'm getting the head work done in the near future is zero, so i'm probably going to take the opportunity....i'll let you know

[p5sundevil]

very very nice info man, i appreciate it alot as it leans toward the plans Id liketo do.

Basically where I am at right now is making decision as to what to do next, I have a CAI and cat back exaust, I know the cats on our cars are huge restrictors to the power potential of the car so for a while I was lookin at a good header to replace the first cat and then switch the 2nd to a hi-flow. But I have been toying around with saving my money and getting a spool starter kit to go with a little boost.

SO now I kinda want to lay of on the header just in case I go with turbo later on. This means for N/A mods the cams, pulley, flywheel and intake manifold are the next items. cams and pulley will be first.

Now I just need to find good prices on blank cams or I might get some OEM's from someome here and then price out how much to grind them. I asked earlier but is there any disadvantage to grinding blanks versus grinding OEM cams from someone else car? I dont wanna grind my own originals cause Id like to be able to go back to stock should the need arise, i dont see it heppening but u never know.

So I guess I got some pricing research to do and will get to work. Especially if I want to port and polish the heads, i dont wanna bore them i think but a good port and polish will help, especially if it mean anywhere near 30whp with both.

Thx again for the info man,
edit: all that rambling and I forgot to ask, when pricing blanks are there only certain ones that will fit our cars or are blanks universal, only thing I can think of that would not make em universal is lobe spacing and overall length.

[twilightprotege]

there is no real disadvantage to remaking cams to larger ones. the way the real cam people do it is take a lot off the original cams, then add the metal on, that way the additional metal is a lot stronger and will last just as long as brand new cams.

and blanks are universal. actually our intake and exhaust cams are EXACTLY the same, just different lift and duration. you could change the cams around if you really wanted to.

just on the sorta topic of adjustable cam sprockets, i'm not sure, but have tripoint engineering finally got their exhaust ones to work yet or only the intake?

later

[DooMer_MP3]

twilight,
Supposedly they fixed that if I remember correctly from one of chdesign's posts. But he never got the new exhaust camgear because he ditched the NA idea.

Chris

[twilightprotege]

that's good, yeah i cant remember seeing if they had fixed that or not, i spose i might as well email tripoint and and have a chat.

but if any turbo people are reading this, YOU WILL GET BENEFIT from the cam gears...the less overlap you can run the better in a turbo'd car.

[twilightprotege]

ok boys and girls, my new cams are in my hand.....here are the specs......and a good point to note, these were ground from the mazdaspeed blanks....oh and my originals will be for sale soon ;)

lift (intake and exhaust) 0.351

duration @
.010" 273deg
.020" 250deg
.050" 226deg
.100" 199deg
.200" 147deg
.300" 83deg

cams will be installed this coming saturday...will let you know the results.

[garretts77]

twilight. This is exactly what I was looking for. Thanks for posting the specs. Good luck with the install. I am eager to hear the results.

[Kooldino]

Twilight - are you using stock lift w/ those cams? Could you list (in the same format) what the stock cams are? I assume we have the same cams stock?

[mrpopnfresh]

Don't forget a "How-to"!!

[twilightprotege]

those cams have 0.351" of lift both - the stock cams lift are : intake 0.341", exhaust 0.323", jspec intake lift is 0.344"

kooldino - cant really give the same detail as my specs for the stock and jspec stuff because that was provided to me by the place that grinded the cams for me. about the us having the same cams, i have no idea at all. the lift specs i gave above are for the american p5. i assume they are the same, but i think somewhere i read that the very very early p5 had a slightly hotter intake cam than the later one. i bought my p5 in may 2001, so maybe i do have that hotter intake cam?? dont know

all - well i started the install last night. the originals cams are out. you can easily tell the difference between the stock and new cams. the new cams are SO much fatter. took plenty of pictures along the way...it's saturday morning here in australia now, a mate of mine is coming over shortly to continue the work....yes i will do a how-to, i promise!

[1FASTMP5]

biggity bump!

[KzA]

wait a second..Spool has a tubular intake manifold for sale??

[twilightprotege]

nah...i think sundevil got a little confused ;)