Na?!?!

[DooMer_MP3]

This is awesome to hear if it really works out (60-80hp). Thats a bold claim perfworks . Its been widely "accepeted" around here that there isn't much power in the FS-DE for a NA application unless you spend gobs of money. So I hope you can show us differently.

I still love the fact that you can upgrade as you can afford it with NA. No huge initial startup costs like a turbo. So I think I'm going to go this route. And maybe someday when I have gobs of money I'll buy a separate motor and get her all prepped for a turbo.

I anxiously await your results. For now I think I'll get me a header!

Chris

 

[snowman4us]

im so stolked!!!! an NA kit is way better then a Turbo kit(it myopiniton). the engine whould last longer, no knob to turn to get more HP and blow engine .
i can inmagine it, red line at like 9k (guns)

 

[20ESGUY]

I'm thinkin stage III kit...stroker forged rods, domed/indexed HC pistons, flow benched/ported head, titanium dual rate valve springs and retainers, titanium valves, forged flycut crank, mild lift/long duration cams, adj. cam gears, modified combustion chamber, maybe even a dual plug setup. honestly i'd love to see someone do that, but i don't see myself going that far anytime soon with a daily driver nor do i have the cash to drop on it, but it is nice to dream a little!

 

[snowman4us]

perfworks u guys whould do what COBB Tuning does(subaru comp. but i bet u already know that) u guys get an engine block and u completely rebuild it and sell it for let say 3000. but if the person send u back ther OLD engine u whould give him 1000 off.
do u see what im saying?

 

[DooMer_MP3]

That takes the fun out of researching and buying/installing the parts yourself and actually learning something! . But thats a cool idea.

Chris

 

[snowman4us]

well its all about what is convinest for u. but if they build the engine ull know that its built right and if something happends thats not supose to u know where to look for anwsers.
also it whould just be the block so u still whould have fun conectint it to a trany, droping it in, and all the other fun stuff.

 

[DooMer_MP3]

Right on. So where does one get custom cams anyhow? What would be some decent specs to have some cams ground to? Something more aggressive than FS-ZE/Mazdaspeed, but not something that will completely destroy idle?

Also, I have a question about revs. What limits revs? Obviously the ECU, but why at ~7100rpms? What would you upgrade to get the motor to rev higher safely?

Chris

 

[Kooldino]

Also, I have a question about revs. What limits revs? Obviously the ECU, but why at ~7100rpms? What would you upgrade to get the motor to rev higher safely?
Chris

AFAIK, you'd build the head. Starting w/ cams, springs, maybe valves, rockers, and all that nonsense as well. Port and polish couldn't hurt either.

I think perf's intake manifold will add some good HP to everyone's cars.

 

[20ESGUY]

Yeah...one of the biggest is not so much the port and polish but the valve springs, valve seat angle, and valve overlap. the springs and seats will cause valve "float" at which point the valves won't seat because the springs can't "spring" back fast enough and the seat's not angled enough to let the valve seat in the head with very little spring tension. If you plan on doing a lot of high rpm use get the dual rate springs and do a 3 or 5 angle job on the valves and have them relapped.