Quote »Actually they're talking about the TO4E series when they're talking about lag problems. The T3 turbine section can be basically be any AR and still spool under 4000. But the TO4 is another story entirely. I had the TO4E on my RB20, it was a 60 trim stg III wheel with an AR of .81 which was way to friggin big for a 2.0. I saw full boost around 5100 rpm. But it would pull your teeth out on boost. Fortunately my redline was 8500 so I could use the slower spooling turbine.[/quote]
I saw this on the KA-T forum, and was wondering what you did to rev out to 8500?
Quote »I had the RB20 spitting out 498hp at 28 psi.[/quote]
What octane were you running to hit 28 psi? I assume race gas (or at least 98 which they sell in japan right?), but what boost would you be pushing to only run US premium fuel?
I am trying to find the safe limits on pump gas for the RB20, and WDRacing has the only high power one I've heard of really.
WDRacing's RB20
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rbsileighty
- Posts: 1694
- Joined: Sun Feb 09, 2003 8:10 am
- Car: 92 S13 Hatch w/ RB20 & 05 Audi S4 Avant 6MT
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NISMO_RB25
- Posts: 1066
- Joined: Thu Nov 06, 2003 4:40 am
- Car: 1992 240SX with RB25DET, 1987 RX-7 TII
Re: WDRacing's RB20
with those numbers is alcohol injection i think, but i wonder what transmission hes running with those numbers
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rbsileighty
- Posts: 1694
- Joined: Sun Feb 09, 2003 8:10 am
- Car: 92 S13 Hatch w/ RB20 & 05 Audi S4 Avant 6MT
NISMO_RB25 wrote:sorry to jump in, but most of the Rev/speeder meters allow you to change the rev limit. someone also posted something on here about cutting a wire to remove the rev limiter.
I was wondering if mods were needed to do this since it is possible to have valve float if the valve springs are to week, may be to fast of a rotation for crank/rods/pistons, or the oil pump may not be able to keep up with such high rpms.
Here's a good article http://www.canadiandriver.com/...2.htm
When you get a chance WD I (many others I'm sure) would love to hear what else went into the makings of this motor.