engine being rebuilt.. get it ported?
 

kevin landers @rotaryresurrection has my car down there rebuilding my engine.. kevin does porting for 200 dollars...

my questions are: should i have him do it? i could use this 200 bucks for a nice greddy water temp gauge and gauge pod. how bad does it decrease your gas mileage? is it worth the extra power when i have to use the car as my daily driver? it is a medium/small sized port so its nothing crazy..

do you all think its worth it?

yea i think its worth it.

portings worth more then guages to me

does a mild port affect gas mileage?

i dont wanna get 20mpg instead of 25mpg for years just for 20 hp. how often to i race or even ream on the car compared to average driving? not much

my buddy has a TII motor in his RX-2 and its ported to the max, dowel pin'd and ALL, and he gets better gas mileage than the FC got off the showroom floor... its all in the ecu, get a standalone and you will get GREAT mileage.

yeah that wouldn't even be a question for me. Port it!!!

Well its less about "oh my port made an extra 20hp" and more about having the ability to make more horse than the stock ports. Getting the motor ported as you know just opens up the motor for better flow, so basically what deltron is saying is right. Get the porting done and be happy :) If you really really really want a temp gauge just get an autometer or vdo. Greddy gauges are nice and more than likely more accurate than autometer or vdo but for a temp gauge being off by a few degrees isnt really that big of a deal.


Cliffs notes: Yes port it :)

In that case don't port it. You won't get even 20mpg with a decent sized port. On the other hand you would gain more than 20 hp with big ports on a turbo motor.

you couldnt be more wrong if you wanted to.

Get it ported, duh. :)
anyhow, you finally determmined the engine was bad? I guess i missed a thread on it. Whyd/when did you decide to rebuild?

It's calling you...<deep, echoing voice from another room> jacoob...jaaacooooob....


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Seriously, it's not that big a deal. IF you dont think you want it, don't get it. Building stock port motors is cake for me anyway, I just assumed, knowing you, that you'd want the upgrade...90% of owners out there do. With a stock turbo and stock ecu, you'll mainly notice the powerband moves up about 1000rpm, I mean it really pulls like a bitch on top end. You should ride in my vert at 6-7psi, it'll feel like 10 on your old engine, and the vert is heavier. My vert is as fast as my FD running 10-11psi, and it weighs 250lb more.

Definately get it ported! Night and day difference even with a medium street port, and gas mileage doesn't change much if overlap isn't increased. All I did with my NA was later closing timing and slightly earlier exhaust opening, and it still gets 27-8 mpg @ 75 mph.

*edit* nice ports Kevin! That's how it's done boys.

You are badass, too bad I dont live anywhere near you to have my car serviced :( :(

I live by him :). Now if I just had money... oh well.

Yes...money, and a magnetic drain plug (inside joke) :rlaugh:

kevin landers, will you marry me?

my car on 10 lbs would roll up a stock FD, but your vert probably HOLDS BOOST TIL REDLINE so the topend is automatically better... my topend permanently sucks dick because i lose 5 lbs of boost by redline :(

slap a aftermarket ECU on, or a AFC tune that biznich and you'll get awesome gas mileage, I can wait for next month when I drop my motors at Kevin's to get a rebuild!

Really? How many ported turbo motors have you seen give 24mpg? Heck how many non-ported turbo cars are getting 24mpg?

Port it man!
My engine just popped and i couldnt even imagine rebuilding it WITHOUT porting....thats just crazy talk ;)

Seriously though, i think you should port it out nice and get the gauge in a month or two.
Believe me, if you want youre engine ported on later down the road you WILL regret not doing it.


And for anyone who knows about how much HP would an S4 Turbo get from a mild port?

guys... i'm looking for some specifics here.

how much more power would you get (all other things equal) with a mild port compared to stock?
how much would it decrease your gas mileage (all other things being equal)?

Tufoball here on the forum has a S5 Vert, one of the heaviest 7s ever, and with no porting work done (except intake runners and TB) and a homemade fuel control setup he's getting around 30-34mpg, I plan on have my S4 block ported, S5 intake ported, and TB ported and achieve 26-30mpg. It's all about how you drive the car, if you're in close loop all day you're gonna have great gas mileage.

Turbocharged rotary getting 30-34 mpg? Umm..OK!. Jacob, do a search on fuel economy and see what the average mpg is for a ported and non-ported car. With the stock T2 ECU, best case scenario around 20mpg, less if ported depending on port timing.

Porting differs from builder to builder, even in a streetport. Kevin's streetporting is relatively mild and there are really only advantages to a port like that. His streetport seems to really be on the intake side, while the exhaust is just smoothed out and pretty much stock. This means your emissions shouldn't really be effected, nor your gas mileage or idle. A bit more power via added flow and an extended powerband are nice benefits. I'd go for it if I were you and if you have your heart set on a water temp gauge, the autometer/VDO suggestion was a good one until you can afford the gauge you want. Or, go without for a bit and save up. What is easier to do later, port the engine or get the gauge? :)

Correct me if I'm wrong here Kevin ;)

Gas mileage in these cars often depends on the condition of the motor and the tune of the car. Cars with larger injectors and an SAFC (like a 550/720 combo) should be able to acheive better gas mileage than stock by leaning out the low throttle settings to best suit driveability. 25 mpg is NOT uncommon for a properly tuned rotary out of boost. Lots of stuff will effect mileage such as how clean your air filter is, how clean the injectors are, what size rim/tire you run, if you have vacuum leaks etc... Most peoples cars are not in 100% condition. Actually, in my experience, an FC will run pretty damn well even if it's way out of tune (timing, TPS, vac leaks etc..)