Not sure we can count this without knowing what kind of porting was done on it.

 

So no no bridges, and no pport is the only restrictions? only asking because, streetport is kindof vauge

 

yea, pretty much, something that's still civil and driveable (i.e. good city gas mileage, doesn't mind constant throttle, pretty much extend porting and/or streetporting)

All other aspects are fair game.

When I say good city gas mileage, I mean relatively good, not downright shitty.

 

i like shitty....

 

whats good gas milage for a n/a motor tryign to make alot of hp?

 

it's really the city cruise gas mileage that counts. A well tuned motor should be seeing at least 17 mpg. Plus it should idle fine at 750, though some streetports do like to idle a tad higher.

 

with my old nikki, and holley, I could get the my SP engine to idle at around 650. you really have to play around with timing (advancing it a quite a bit) and playing around with the mixture enrichments.

Mind you I never really got any good gas milleage before that was due to my gas tank leaking, when I took it out, the one side seam welds were basically all rusted out. Not I got a newer tank, looks basically new on the inside and out. The outside was sandblasted and painted with 2 coat epoxy primer. The inside was also lined. The top was modified to accept AN fitting attached to my walbro 255lph pump, with a second gen flange hooked to it, and also second gen sump cup.

 

for what it's worth ...

 

i helped him put this engine together, and i can verify its a streetport. its nothing huge either, but the fact that its an -re means it has some pretty big ports and huge runners to start with, not to mention that nice huge -re manifold. I'll let logan decide if he wants to mention anything more specific since he seems to have hold of some valuable information.

 

Maybe i should just learn to read better ... .... lol. The re is out of what year? 84-85 correct? Would be nice if we can reupload those pictures.

 

i think it's more like 1991-95 (or something like that) - the JC Cosmo.

 

13B-RE Cosmo motor, IIRC

 

No dyno sheet, but our EProd 12A (SDJ built) did 235hp at the flywheel with the EP spec'd Weber chokes. Any nationals level EProd motor in an FB should be making about the same power or a bit more, while the FCs get bigger chokes so they should be a more still.

 

What kind of port?

 

"Street"; it's required by class rules. I've had it apart and it's perfectly legal; there's nothing on the engine that would be called a bridge or peripheral port but... well. Some of it's jetting (it's a race engine; we never bothered to fiddle with stuff that doesn't matter for track use) but it idles at around 1200rpm (and lopes there!) and doesn't really start making power until like 5k RPM or so. Shift point at 9.5ish.

Streetable enough for me (hell, I'm tinkering with seeing if I can make a pport work well enough for me) but might be a bit hairy for some people.

 

Yeah, its a Cosmo Re, most likely circa 1990-91. Its using a full stock RE intake manifold, regular streetport, 9.7:1 rotors, and now has a new header. Best power so far is 206rwhp, 152rwtq on our dyna pack. Once I play with collector sizes I am hoping to make a good chunk more, and still be streetport. So am I the highest recorded rwhp for streetport so far?

 

yes, I believe so. Though I've heard of a rebalanced Racing Beat engine with a weber and ITB's make 250 flywheel.....only the Racing Beat folks would know for sure though.

 

we made similar power in 03 with our IT/PS1 car. stock s5 block, stock intake, custom header.

ecu only made 2-3hp differance at the peak, but it did make a huge difference between 4-6k and 8k and up.

the current car (see link in sig) makes about 140hp but gets 12mpg. the FC got about 3.... thats a lot less pitstops for fuel

 

Just ordered my complete rotor kit and gaskets. Cant wait to start the build.

 

Sorry the pic of the dyno chart was down. Its fixed now

 

The top EP cars are in the 250 crank hp range on street ported 6-port irons. Paul Yaw as made at least 210 whp. http://www.yawpower.com/sep2004.html

 

mmm.....yay for rebalancing......can anyone hit 250 wheel without going to the higher ports? that would be interesting.

 

If someone knows the magic formula for 250 hp we should defiantly share the knowledge.

 

Is this challenge for 250rwhp on any dyno? If that is the case, a dynojet 250rwhp wont be AS difficult. Still quite a goal......

 

This makes me want to scrap the TII thing and go NA and see if I can try and set a record (for this thread) and get a more reliable car.

I bet ITB's wouldn't be as expensive if I sold my TII ****.