Hmmmm <temptation settles in>

 

Some people have posted that the intake cam is giving very little improvement. They has pre and post dyno's done.

I have a question. Since this jspec cam was made to be used with the jspec pistons, is it possible that the gains of the jspec cams won't be felt until the high-comp pistons are installed as well? Also, vise versa? I'm trying to guess why the intake and exhaust cams are giving people such small gains on their Proteges'.

 

I'll look for them. The guy did not post pictures of the graphs, he posted the numbers though. Maybe I'll be able to find the post.

 

The higher compression pistons will certainly provide a power gain, but they should affect the cam at all. If the cam isn't producing the same power on the FS-DE as it does on the FS-ZE, it's more likely due to the ECU. I'd like to see the dyno before I believe it's not producing any gains. I've seen several posts including quite a few Probe owner say it does. I don't think the Mazdaspeed exhaust cam will have the same effect that the FS-ZE intake cam will. Is that what your thinking of?

 

I seem to remember some one saying that when they dynoed the cam netted about 6 hp at the wheels. Not exactly the best mod for the dollar but neither is the intake....which I have....

 

If you got 6HP at the wheels from an intake on an otherwise stock Protege, you need to work on my car! Last time I checked the cam was cheaper than any aftermarket intake.

 

I didn't get the cam....some else on here said that once. I am also sure that I didn't get 6hp from my intake. That would be nice though. If I could get 6hp from a simple intake I would be more than happy to hook you and your car up....

 

Here is the post where there were very small gains with the cams.

Post on another board

This sorta brought my hopes down.

 

"These numbers were reached by 3 different people with 3 different dyno's. Numbers probably aren't exact.

I will be dynoing my car soon, will post numbers."


I gotta ask: who are these "3 different people" and where's the graph? I'm interested to know what 3 people have BOTH the fs-ze intake cam and the mazdaspeed exhaust cam installed.

The Bosal exhaust, alone, is supposed to make 5 whp.

 

You would have to ask the guy for who these people are. I have seem lots of members with signatures that say jspec intake cam and Mazdaspeed exhaust cam. Most people that get any cams get both together.

So if the bosal gives 5hp across the whole power band(like the graph at protege5online.com) and an intake gives about 1hp and 8p/f tourque. That leaves about 1.6 hp for both cams. If the bosal does take away tourque, then the cams are not making more than the bosal lost because the numbers say the tourque was higher with just the CAI. Weird stuff.

The same person that posted that message has the bosal header for the MX-6. He reported that there were next to no gains for that either. Maybe this is all just some really bad tuning.

 

Or maybe people need to get off their butts stop complaining about now enough power and make themselves a freakin turbo kit! Oh yeah latest Dyno reports with a cracked freakin manifold and lag galore......148 whp at 6200 RPM 5psi non-intercooled. SO I shoudl see some nice gains once the top-mount goes in!!!

 

mazdamotorsports claims that the intake cam add something like 8-12 hp and I seriously doubt that mazdaspeed would produce a cam that adds 1hp.

Those dyno numbers don't make sense. The bosal exhauset MAY lose toruqe, but that would most likely be in the low end. Peak numbers SHOULD be better than stock.

Basically, I can't see how in the hell those numbers are correct.

 

i'm wit-chew, man.

all these guys that complain about crappy gains from all this work, didn't bother to find out what they were putting down before thier mods. and i too want to see some graphs that actually compare what the mods do, not just some bozo with a g-tech and no brain saying "it feels stronger, must have added 50 hp!"

 

Ok, once again I have no graph to back this up. But don't kill the messanger.
A link where someone claims 42hp with multi mods

This seems alright. 42wheel hp increase, CAI, cat-back, intake & exhaust cams, flywheel and some sort of custom bodged header.
No graph so it could be BS.

 

i would have to say he is full of it. 42 hp at the wheels?!? come-on. that would mean he went from (just a guess) 110 whp max up to 152 whp! if the losses are consistent (and i said if) at 20% (reasonable), he would have gone up to 182 hp at the crank! he would be lucky to hit that with a crappy turbo set-up!

if i had to guess that he did all those mods, he might be pushing 130 at the wheels, max. (which would give him roughly 155 at the crank)

from all this stuff i have been reading about headers and intakes and cams and exhausts, my first guess would be that the FS head is a real bottle neck when it comes to performance, because not much gains seem to be made by swaping IHE. just a thought. (maybe i'll start a new thread about this)