cams and cam gears

[badsilverMP5]

Hey guys! I know that this has probably been asked several times but do you guys know if anybody is making cams,cam gears, or under drive pulleys for our cars yet?? I have a custom intake and exhaust but would like to put a header and cams and gears with some underdrive pulleys to get a little more out of the car. How much horsepower do you think I would be at with all of this?? I estimate about 150 or 160 at the flywheel. any feedback would be great. Thanks alot

 

[Pro Fiz]

No one makes after market Cams for our cars yet, however, we do have one option, the cams from the FS-ZE engine; but they aren't performance cam's... that is about our only choise unless you want to get custom ground cams, try searching around to find more information... And Welcome...

 

[badsilverMP5]

thanks for replying so quickly. is anybody making headers or underdrive pulleys yet??

 

[twilightprotege]

hey

indigo and unorthodox racing are making underdrive pulleys...headers, not sure...maybe not for a while because of our pain in the butt 1st cat being so close to the engine...it just kills any improvement in the header area...i'd suggest spending your money elsewhere like on oversized throttle body or bumping up the compression ratio rather than headers...just my opinion

later

 

[herarety]

Traveler(his username on here) makes a header that retains the stock cat and precat.

AWR makes a header that retains only the primary cat. It has places for both o2 sensors and the EGR. There's also some other header makers..OBX being one of them, but I don't know specifics of it...try a search in the Perf section.

 

[mopiko]

Wait, I thought MazdaSpeed has both the intake and exhaust cams for our P5s???

 

[night rider]

i heard the only thing mazda has in the way of new cams are JMD versions that aren't a big gain, its a stock cam just a little hotter, since its jmd. but then again i very well could be wrong.

 

[night rider]

For all of you who aren't familiar with these cams, they are JDM Mazda. They have the same lift as stock but the duration is longer. The stock duration is 198/200 @.050. They New cams have a duration of 210/200 @.050. I purchased the FS-ZE intake and Mazdaspeed exhaust cams from Corksport. They say that the intake cam alone will add 10-12 in N/A. Most of the threads I've seen say this is not true. They say that it is about a 7-10 hp for both. I have no idea what gains are for FI. I don't have time to go and dyno it anytime soon so I'm sorry I can't give you exact gains. They are designed for N/A but I have had no problems at all so I guess they work for our cars too! Just to let you know I've put about 200 miles in them now. I hope this helps! Evan

BTW: Install was pretty easy because one of my friends helped me out. He's worked on cars for about 10 years now so it made things go alot smoother. All in all it took about 3 hours.


talk to this guy he recently got the hotter JMD cams. the whole thread is in themazdaspeed section and is tittled cams installed.

 

[tmht]

The claimed gains are probably at the crank. Where as the actual that people are saying they are getting are probably whp. That would explain the difference.

 

[PR52002inFl]

Night Rider

Did u had to change any internals with the cam swap, ex.lifters,valves,valve springs,or anything like that???I'm thinking of doing this mod but thats whats holding me back. And what kind of improvement u felt after they were on?? Is there a break in stage??? Thanks in advance!(2thumbs)

 

[tmht]

Re: Night Rider

Did u had to change any internals with the cam swap, ex.lifters,valves,valve springs,or anything like that???I'm thinking of doing this mod but thats whats holding me back. And what kind of improvement u felt after they were on?? Is there a break in stage??? Thanks in advance!(2thumbs)

I haven't done the mod, however. If the cams only change duration and not lift you shouldn't have to do anything to the valvetrain at all.

 

[night rider]

i simply copied and pasted the info about the hot jmd cams, i did not do this mod myself, sorry i didnt do the qoute thing but i dont know how to as i am new to the forum so i just copy / pasted the post. if u read the bottom of the post it tells u were to locate the thread, u can look that up and talk to the person who actually did it.

tmht is right, the lift isnt any different only the duration, or time the vaulves are open to alow air into the piston, and spent air to exit.

and no prob, glad to help.

 

[Pro Fiz]

hey, nightrider, just so u know if you want to copy a quote off a thread to respond to it, there is a button in the lower right hand corner of the box with that thread, it says "quote", that will copy it into your reply... but if you took the quote from somewhere else, like you did... just click post reply and in the box above where you put the message there should be a box saying "quote" just click that and put the message into there.... Or just type (quote)MESSAGE HERE(/quote) replace the "(" with "["

 

[night rider]

much thanks Profitz.