Hey, I have a 1988 RX7 GTU that I want to make faster, no suprise there, however I also do not want to put on a turbo. Aare there any things that I can do to give me a little more power that isnt too expensive? please get back at me who ever with advce and what not?

 

hey i have a 1988 RX7 GTU and i was just wondering what easy mods i could do to boost the power up at not a great expence? well honestly anyone who knows any tips or tricks on how to get the car up performance wise please drop me some tips or hints please.

 

here some advice... SEARCH ... been discussed countless times, tons of stuff on free and cheap mods everywhere including the archives, and a little something for people in the faq.
if you search around the forum you will find countless hours of reading material.
hope this helps.

 

the biggest bang for your buck is in the exhaust. if you live in a non-smog area, a full exhaust setup can net you a 28% increase in hp. if you need to pass smog, a cat back system (everything after the catalytic converters) will still make a difference.

next most common mod would be a new filter. there are two schools of thought here, drop in a replacement filter into you airbox, or replace with a cone. the reason replacing with a cone filter isn't the most obviously better of the two is that it will draw in hot air from the engine bay without a box. i went with cone, as i intend to someday build my own airbox around it.

if you are somewhat mechanically inclined, or know someone who can help yuo, the next cheapest bang for buck power mod would be upgrading to the series 5 (89-91) variable dynamic intake (vdi). this uses pulses from the intake to improve flow at higher rpm's. a valve is actuated by the air pump, and this makes it shift from low rpm flow to high rpm flow. the parts needed for this are relatively cheap if found used, and include the s5 upper intake manifold, and the dynamic chamber. i've never done this, but i've heard 5-8 hp? and that it really comes on at 5000 rpm.

 

i cant believe im doing this but

search for "beefy N/A" mazdaspeed7 made a 7 that was pretty strong

 

Archives. There's a thread called "how to make a beefy n/a".

 

Threads merged...

Do a turn up first... make it run right, before moding it.

 

^^ tune up.....intake, exhaust, SAFC, pinneaple sleeves.....my Fiancee's GTUs dynoed at 150 rwhp

 

thank you all so much and yea the tun up is deff first and making everythig run right and sound before beefing it up. thanz all of you and more tips are always welcom.