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Thread: hi rise intakes for 300 promax
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09-10-2008, 01:05 AM #15000 RPM
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hi rise intakes for 300 promax
anyone tried the mad efi and/or burcato 3.0l merc intake hi rise spacer if so what ya think and get from it?
i wana use one on 300 promax
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09-10-2008, 07:43 AM #2Screaming And Flying!
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Laketrash haz a Madd front on a 300PM(well, it iz highly modified now)...When it run's it haulz azz.....I thank most ov the problems he haz wit it iz electrikle compatibility.....Maybe U kan PM him or holler at him!!
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09-10-2008, 09:57 AM #3
mad
i love mine. top end vs stock is a little better, but holeshot and mid rage and acceleration is ten times better. i run a stock 300 pm with a 15" mid on a 20 bass boat. usually turn it 6800 to 7000 all day.
my .02
casey
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09-10-2008, 09:59 AM #4
is it ported how are you turning that many rpm's on a 3.0l
1988 reaction19-sold
1978 action20 w/ 250 efi-sold
2003 quartershot T4-sold
1978 16 action with 15'' 2.4 -sold
1979 mako21 w/ evinrude 150 faststrike-sold
1995 18 ACTION COPY w/ CCMS HO2FO!-sold
1981 24' manta w/ a v8
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09-10-2008, 01:50 PM #55000 RPM
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thanks guys for the replys FASTSKEETER which one r u useing mad or burcato
'
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09-10-2008, 04:33 PM #6
mad
i run the mad. i heard tony's is running excellent as well, i just have not had the chance to try tony's, YET. i had shaune re-calibrate my ecus to waynes specs and then adjusted a few times to fit my boat motor application.
19, when i drag race a turn a 24 yamaha usually 7200 in the quater on a 1.75 gear, i also run a highly modified hydromotive quad IV and will spin it up to 7000. on the lake i usually run a 28 bullet cut chopper to 6400 and some change. this is a stock 300 block and front half. heads are 148lbs hot, stock cages with TRD reed, light flywheel, alothough the flywheel only helped holeshot, this is set on a 15" mid with wayne's tunner.
there is a guy out there that has a 3.0l with 2.5 electronics turning 8500 to 9000 on carburators
hope this helps.
casey
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09-11-2008, 06:00 AM #75000 RPM
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thanks heaps aye
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09-11-2008, 08:43 AM #8
wow thanks for the info i thought a 300/250/225 was done making power at around 6200rpm's. how are you still making power that high up with a stock 300pm block uncut.
1988 reaction19-sold
1978 action20 w/ 250 efi-sold
2003 quartershot T4-sold
1978 16 action with 15'' 2.4 -sold
1979 mako21 w/ evinrude 150 faststrike-sold
1995 18 ACTION COPY w/ CCMS HO2FO!-sold
1981 24' manta w/ a v8
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09-11-2008, 01:43 PM #9
feed the motor what it wants when it wants it, and it will spin to your hearts content as long as it has good parts inside.
i have never dynoed this motor, but if it spins up and does not torch anything, then it is making power. i am no motor guru just my .02 cents.
casey
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09-11-2008, 02:18 PM #10
So In My Application With My 250 Efi Spinning 5800 How Should I Go About Getting More R's From It I Have A Stock Comp And 300 Heads .
1988 reaction19-sold
1978 action20 w/ 250 efi-sold
2003 quartershot T4-sold
1978 16 action with 15'' 2.4 -sold
1979 mako21 w/ evinrude 150 faststrike-sold
1995 18 ACTION COPY w/ CCMS HO2FO!-sold
1981 24' manta w/ a v8