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Thread: 225 Promax Rev limter options.
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06-10-2014, 08:23 AM #1
225 Promax Rev limter options.
My stock/original 1997 2.5 225 promax pulls a 32 ET with 1.75 gears hard to the limiter at 103 MPH every time out.
If I wanted more speed I'd either have to have this prop pitched up, buy a 34" cleaver or similar or raise my limiter.
Besides Brucato (which isn't in the budget right now) are there any decent ways to bring the limiter up to 7k or so?1989 21' Skater - twin 2.5s
1986 Cougar 21MTR, 15" 300XS - sold
2002 TUFF 21 (#0.1), 300xs - sold
1986 Valero YT, 225 Promax - sold
1987 Viper, 140 cross flow - sold
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06-11-2014, 08:36 AM #2
If I had a "plain jane" ole pm doing that, I wouldn't touch it! Get a bigger prop..............
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06-11-2014, 07:13 PM #3Team Member
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do you still have oil injection? you could delete it and the rev limiter and call it good
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06-11-2014, 07:47 PM #4
Oil injection is removed as are the "black boxes" for idle stabilization and timing retarding both for simplicity and reliability. I didn't know you can unplug the limiter... How is that done?
1989 21' Skater - twin 2.5s
1986 Cougar 21MTR, 15" 300XS - sold
2002 TUFF 21 (#0.1), 300xs - sold
1986 Valero YT, 225 Promax - sold
1987 Viper, 140 cross flow - sold
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06-11-2014, 08:50 PM #56000 RPM
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You cannot unplug the limiter as its built into the ECU's program. You can send it in to the get the limiter raised. Not cheap though.
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06-11-2014, 08:51 PM #6
Might want to get a lightweight flywheel if you're raising the limiter.
2004 Deep Impact 36 Triple 300 Verados
1998 Donzi 35 ZFC Triple 300 Verados FOR SALE
1989 24ft Skater, Twin Diamond Marine 280's with Diamond Tuners, 34p Cleavers. A few pieces of JL Audio equipment.- SOLD
1988 18ft Talon- SOLD
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06-11-2014, 09:49 PM #71989 21' Skater - twin 2.5s
1986 Cougar 21MTR, 15" 300XS - sold
2002 TUFF 21 (#0.1), 300xs - sold
1986 Valero YT, 225 Promax - sold
1987 Viper, 140 cross flow - sold
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06-12-2014, 04:50 AM #8
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06-12-2014, 05:20 AM #9