ITB's+550cc primary/720cc secondary+Large SP+full race exhaust+Megasquirt+REALLY GOOD TUNE=200whp

A. A "large" streetport is unnecessary. A well done mild streetport will get the job done and have better midrange.

B. Do not get 720cc injectors. 550cc injectors will be more than enough and 460's will work if you know what you're doing. I know someone that did 175whp on I believe 330cc injectors and made better power than the 460's. This was a stock port motor.

720 is a lot of fuel.

Contact Logan @ Defined Autoworks about how to make 200+whp N/A :):)

I know someone who ran out of fuel at 197 whp, I forgot if he was using 4 x 460 or 4 x 550, so I figure, if you have fuel management, how would 4 x 720 hurt anything if you can control duty cycle via the EMS?

I've also never seen a mild streetport hit 200 whp.

http://www.rx7club.com/showthread.ph...14#post8944914

I don't know what's considered "mild" but this is certainly a streetport :)

(yea yea I know where I linked to)

To clarify, I spoke to the guy, on a decent streetport, he made 195 whp on 4 x 460 cc injectors before running out of fuel.

Stock fuel pressure FTL!

To be fair I haven't either, but how many people who have 'mild' streetports change the intake and exhaust to match the new porting and power band. Most keep the stock intake and a 'street' header at best. But with EP cars doing 230whp+ on 6port motors, given these are BIG streetports, I am pretty confident that a properly setup mild streetport will do 200whp. Properly setup is key here.

Those EP streetports aren't very civil either, considering, from what I've heard, they love their idle at 1300 rpms, which is almost bridgeport territory.

I just don't think a mild streetport (maybe 20-30% more port area) will flow enough for 200 whp. Maybe, maybe not.

Though, with an aftermarket intake manifold, you may be able to get 200 whp.

I might go BP to hit the numbers im looking for. not sure yet. its not a DD just a fun auto cross/ weekend cruiser but i do drive it in the summer often and dont want a super loud exhaust(if at all possible but i will sacrifice if its laying power.) but i believe where ever i decide to get my porting done i would like to have a custom exhaust that would match porting. anyone know a really good roto shop in the midwest. looked at aspec but im not sure. might just break down and try to get kevin landers to do it around this time next year if he is avalible.
Also if i do go bp i think i pretty much loose all street drivablility correct?

You'll get a high, lopey idle, poor light throttle and poor city gas mileage, but beyond that, it's tolerable for some people.

...this is why I hate threads like this.

To the OP...just build the damn thing and THEN brag about what you built.

The 200hp (at the wheels) mark has been one of those lofty goals a lot of people talk about but never attain.
So far, it's been a lot of theorizing and / or knowing of a car that someone else built.

I suggest the OP do more research first - you sound really lost on what you want to do.

Seriously, if you've never been in a turbo 13B, you really should.
High power NA 13B's are usually only reserved for "spec racing".


-Ted

HA. Do more research? isnt this thread just that? Im asking questions on other peoples opions of there sp and bp? dont think i have done the same with turbo guys to? And your right i am lost on what i want to do hints all the questions. thanks for your un asked for uneducated response. You probly know what your cars but in this case your ignorance is just shining threw. If you dont like the thread theres a cool little x button on the top right. c ya.

i think im going to go SP and hope for the best and see what the dyno reveals.

You...obviously...are very new to this.
This has been discussed a bazillion times already.
Maybe not on here, but I'm sure you know how to use Google?

The same goes with with bridge ports...

So we just wasted 3 pages worth of discussion that just came back to what I suggested - build the damn car and see what it dynos.

Oh, and if it's not obvious by now...
Don't try and run a BP on the stock ECU.
There is no mention of an aftermarket EMS other than an MS - I don't consider the MS a real stand-alone EMS.
BP motors also would require upgrading the oil system and possibly bearings just to spin it to those ungodly RPM's.
Trying to run a BP under stock redlines (less than 8kRPM) is almost a waste of time.
Radical port motors, which include BP's, require very free flowing exhaust systems.
Free flowing exhuasts usually mean very loud exhausts.


-Ted

followed by tuning