Highest Power Challenge: 2-Rotor 13B Non-Bridge Non-Peri
12-12-07, 04:51 PM
#26
Logan from defined autoworks made 206 rwhp, 151 rwtq, with a 13b-re.
https://www.rx7club.com/defined-autoworks-176/customer-dyno-charts-679163/
third post down, but it looks like the picture is broken now ?
https://www.rx7club.com/defined-autoworks-176/customer-dyno-charts-679163/
third post down, but it looks like the picture is broken now ?
12-12-07, 05:09 PM
#28
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.
All other aspects are fair game.
When I say good city gas mileage, I mean relatively good, not downright shitty.
12-13-07, 12:44 AM
#32
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.
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.
12-13-07, 01:44 PM
#34
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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.
.... lol. The re is out of what year? 84-85 correct? Would be nice if we can reupload those pictures.
12-14-07, 10:21 AM
#38
spoon!
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.
12-14-07, 10:29 AM
#39
What kind of port?
12-14-07, 10:38 AM
#40
spoon!
"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.
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.
12-14-07, 01:56 PM
#41
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?
12-15-07, 03:06 PM
#43
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http://www.ludwigmotorsports.com/rx7/denton_dyno.jpg
173 on stock ports and stock ECU.
I suggest a sticky thread similar to what they have in the 1st gen section. Just throw up all the NA power numbers and include a note on mods and porting.
173 on stock ports and stock ECU.
I suggest a sticky thread similar to what they have in the 1st gen section. Just throw up all the NA power numbers and include a note on mods and porting.
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
12-18-07, 03:48 AM
#46
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
