TriangleMan

Well, I just got my engine rebuilt and streetported. The exhaust is stock until the second precat. After that, the main cat is gone, cherry bomb, y-pipe, and mufflers. I have a cone air filter too.

What do I need to know about the streetport? I'm getting towards 900 miles so I recently started getting on it, which is simply amazing. I heard that the stock ECU cuts fuel at 7800 rpm. Also, I've heard that I might want to go with bigger injectors too. Anybody who has some info, please share.

Agent_D

iTrader: (2)

if you go with an exhaust get some bigger injectors, like 500cc from RC, for primary and either 500or550 for secondary, the stock ECU cuts the fuel at 7600 on 86-88 models, but a street port makes power till ~9k rpm.

Felix Wankel

Get a header before you mess with the fuel. You're choking it with that manifold and precats.

Ryde _Or_Die

I agree with that, I don't think you really feel the streetport till you open the exhaust all the way. And what do you get for an NA, instead of a FCD? Just get the S-AFC and some TII injectors or what? I know I was always told you don't need to upgrade anything with just a streetport.

Agent_D

iTrader: (2)

with a street port using a free flowing exhaust yes, t2 injectors and an S-AFC, if its a stock exhaut, or close, you can use stock injectors, or 500cc, just a tad bigger

Felix Wankel

You've got 4x460's in there, I don't see a street port taxing them too bad?? Get a Walboro and an adjustable fpr and see how it goes then. Maybe possibly you might almost need some 550 secondaries...

Bambam7

Check out my sig for pretty much covering all the bases required for a streetport..If you want to go all the way.


4 550cc's are overkill right now, but I am putting a turbo in soon, then they'll be required.
The stock fuel system will be fine unless you start modding EVERYTHING else... (umm... like I realized I did when I looked at my bank account...)
Once ou start with the fuel system though, you should do everything.... injectors, pump, and DEFINATELY and s-afc for control- otherwise it'll be crappy.
It's amazing how one mods requires another...lead to another....need to do that now to notice a difference from this.....everything is tied together...

breesej

Header/Presilencer(s) and a decent mffler(s)
have your injectors cleaned and balanced

Stay that way since 550's and S-AFC is not worth the trouble.

fcturbo2

If you do need 550cc injectors i have a pair forsale!!..they are RC Engineering 550cc injectors that i took off my 87TII. I also have a RacingBeat fuel cut defenser or FCD!. email me at FCTURBO2@hotmail.com

crasher2

let me know if he doesn't buy the inj from you. I am getting ready to street port my N/A and can use the.

email me at ZM97@aol.com

13B2QuIcKNy

you live in orlando?? go to ortiz speed shop on goldenrod and valencia comm. college lane, he has gslse injectors.. those are 750 cc...... ive seen ur car at the track a few months ago... the white one wit blue stripes.. nice

Felix Wankel

Theyre 680cc, and way too big for an NA...

Grimlock

isnt a cherry bomb glass packed. the heat your engine makes will kill that cherry bomb pretty quick wont it?

i heard it could take a day only for it to go.

TriangleMan

fcturbo2: No thanks, I'm trying to keep the mods to a minimum until I get out of college or at least get a decent paying job.

13B2QuIcKNy: What were you driving at the track? I might be going soon, maybe we should meet up.

Grimlock: Well that cherrybomb's been on my car for almost 2 years, and it was on another rx7 for a while before that, so it was probably melted a long time ago.

13B2QuIcKNy

i was drivin my cousins black intera gsr... 2000 dropped on stock rims... it had new york license plates.. since theres so many black integras tho... u may not remember... meanwhile i have a 91 n/a red... stock... when are u going maybe we could meet up.... but ive definetly seen urs....

TriangleMan

Nah, don't remember. That's cool though, I'm going to run it soon and see what I can get before I put on the headers (well, I have to get them first). I want to see the immediate gain from before the port to after

turboshjosh

please open up the exhaust! i had a street port with intake, midpipe, catback and i was wasting 4.6 mustangs like they were some bad gonja!

Angel Guard Racing Team

You NEED A FREAKING HEADER!!!!!!! Remember give your engine at least 2,000 of breaking in.... Get bigger secondaries if you happen to go lean on secondaries at high RPM's you will loose you apex seals, then your housings and you might even put a big freaking hole in one of your rotors...