Apex'i RX-6 Turbo Numbers
12-25-03, 10:09 AM
#2
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it isnt hard to search the forum, its been discusses a ton, depending upon boost levels, and porting expect anywhere between 380rwhp-425rwhp at 14psi and as much as 460 at 17psi, check around.
12-26-03, 06:25 AM
#4
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i searched, couldn't find them other than the old 400hp number.
what's the cap on psi before it just starts cooking air? how much can you get out of it with the average street port?
what's the cap on psi before it just starts cooking air? how much can you get out of it with the average street port?
12-26-03, 11:23 AM
#5
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I think dougiefresh has made 460rwhp at 17psi, I know that according to apexi the efficiency on this turbo is 17ps psi and above. The turbo has been run on mr2's to make over 550rwhp at 30psi
12-26-03, 07:19 PM
#6
I know i have talked to dougiefresh. He runs low 12's with stock IC. I dunno what he is runnin now thou havent chatted with him for a wial. I dont belive that 400 is the cap but i think thats all they recomend to run. Well when ever i hear HP numbers from like a tuning garage its allways around 15psi, cuz i belive thats what apex and RX-7.com recomends. Well i guess that works for me, just at or below 400 is my target, for drivability reasons, if you can call that drivability. LOL
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12-26-03, 11:49 PM
#9
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https://www.rx7club.com/showthread.p...pexi+rwhp+most those also arent bad numbers on the apexi kit
12-28-03, 03:44 AM
#12
I just caluculated how much money anyonewould need just to buy the parts strait out, without a discount, from RX7.com and it would cost $8203.00. That is with top of the line **** thou.
$204 Greddy Type S
$299 FC-Datalogit (ECU Program)
$995 RP secondary rail and 1600cc injector kit w/ SX regulator and RP Competition pump
$1,330 Apex'i Power FC
$1,395 Apex'i FMIC
$3,980 Apex'i RX-6 Turbo Kit
= $8203.00
They claim they will give people packaged deals like this but I would like to know how much of a discount you would acctully get.
$204 Greddy Type S
$299 FC-Datalogit (ECU Program)
$995 RP secondary rail and 1600cc injector kit w/ SX regulator and RP Competition pump
$1,330 Apex'i Power FC
$1,395 Apex'i FMIC
$3,980 Apex'i RX-6 Turbo Kit
= $8203.00
They claim they will give people packaged deals like this but I would like to know how much of a discount you would acctully get.
12-28-03, 10:22 AM
#13
For the lazy guy that started this post 
Here is a list of dynos for you to draw your own conclusions from, good luck!
http://www.catenet.net/dyno.php
Here is a list of dynos for you to draw your own conclusions from, good luck!
http://www.catenet.net/dyno.php
12-28-03, 05:59 PM
#14
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Check out:
http://www.catenet.net/graph.php?car56=1&SUBMIT=GRAPH
This is a dyno run with an RX6 turbo running 18 psi on what appears to be a street ported 13B-REW. Peak HP looks to be about 440 on the graph.
Many folks that I know advise not running rotaries at more than 1.2 bar, BTW, so be careful when going to much higher boost levels than this.
I think this is a very solid setup.
http://www.catenet.net/graph.php?car56=1&SUBMIT=GRAPH
This is a dyno run with an RX6 turbo running 18 psi on what appears to be a street ported 13B-REW. Peak HP looks to be about 440 on the graph.
Many folks that I know advise not running rotaries at more than 1.2 bar, BTW, so be careful when going to much higher boost levels than this.
I think this is a very solid setup.
12-30-03, 12:49 AM
#15
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Efficiency ranges are different for rotary engines. We generally achieve the horsepower marks with lower psi ratings. That's why we all had 255 at 10psi while we're seeing cars like WRX's making only 225 at 14psi, and they don't have the restrictions that our stock manifolds and turbos have in them. Piston engines just boost much higher than rotaries. The compressed air flow has to stop and go a lot when it hits the heads. With no valves, that flow never really stops in rotaries. That's why moderately modded Supras run over 20psi and only the ridiculously mean RX-7's we know of are pushing it up that high.
12-30-03, 06:23 PM
#16
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01-17-04, 06:53 PM
#20
I don't know about you guys, but I think that Maxcooper is da' man as far as it goes at knowledge. But he says, if he had to do it all again, he probably would have either whent with a t04e or t04s. (I remember reading it somewhere.) Anyways, I think that the Rx6 is way over priced. I'd look at a T04E first. CJ
02-04-04, 07:58 AM
#23
Rotary Enthusiast
Originally posted by MakoDHardie
Efficiency ranges are different for rotary engines. We generally achieve the horsepower marks with lower psi ratings. That's why we all had 255 at 10psi while we're seeing cars like WRX's making only 225 at 14psi .....
Efficiency ranges are different for rotary engines. We generally achieve the horsepower marks with lower psi ratings. That's why we all had 255 at 10psi while we're seeing cars like WRX's making only 225 at 14psi .....
basic effective engine size is displ in 2 revs times absolute boost ratio. wrx is 2.0 x (14.7+14)/14.7 = 3.90L. FD =2.6 x (14.7+10)/14.7 = 4.37L, or 12% more effective displacement.
FD is 255 at 6500, wrx is 227 at 6000. The stock FD has the expected 12% more hp based on effective displacement, but it takes 8% more rpm to do it.
