The 13B NA Power Thread.

N.RotaryTech · 12-10-2008, 05:17 PM

A few years ago my GTU made 131rwhp, that was with RB pre-silencer an mufflers and a mild port job, A/C components removed. S5 engine btw. (I can't really remember if I had the RB or if I had the stock exhaust system on when I got it dynoed. The time I put the RB exhaust on was close to that time.)

Since then I've removed the emissions components, 5th & 6th port actuator sleeves and rods, wired open VDI.
I've mentioned this on the other forum, some will argue this, but I did notice a difference with the sleeves and rods removed. Mainly: smooth, all the way up the RPM range. Low end: no difference.

I might get It dynoed again in the spring after a needed tune-up. Id like to see what its been making.

12-10-2008, 05:17 PM	#1
N.RotaryTech Home-brew Rotary Join Date: Feb 2008 Location: GooseCreek SC Posts: 552 Rep Power: 18	A few years ago my GTU made 131rwhp, that was with RB pre-silencer an mufflers and a mild port job, A/C components removed. S5 engine btw. (I can't really remember if I had the RB or if I had the stock exhaust system on when I got it dynoed. The time I put the RB exhaust on was close to that time.) Since then I've removed the emissions components, 5th & 6th port actuator sleeves and rods, wired open VDI. I've mentioned this on the other forum, some will argue this, but I did notice a difference with the sleeves and rods removed. Mainly: smooth, all the way up the RPM range. Low end: no difference. I might get It dynoed again in the spring after a needed tune-up. Id like to see what its been making. __________________ '89 RX7 GTU, half-Bridge-port S4/S5 NA, E6K, Full RB exhaust, weekend warrior. '83 RX7, The "this might take awhile" project. '87 RX7 GXL, Rest In Pieces. '98 Subaru Impreza Outback-sport, rx7 rescue vehicle, down for repair. '94 Ford Ranger, daily.