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Search: Posts Made By: LFarr
Showing results 1 to 25 of 27
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Forum: General Boating Discussion
08-08-2010, 12:58 AM
Replies: 15
Views: 9,478
Posted By LFarr

575 sci power upgrades ?

I'm interestd to know what kind of power upgrades have been done to Merc 575 sci set-ups.

How much boost do they run in the stock / factory configuration ?

Your expereince or redirect to...
Forum: Detailing, Painting, & Fiberglass
07-30-2007, 11:55 AM
Replies: 38
Views: 39,095
Posted By LFarr

how did things work out ??

What effect did your "pad" have on performance.....

Any changes in plaining.......turning........chine-wlaking.......or anything else positive or negative in your opinion....
...
Forum: Prop Talk
03-06-2007, 11:24 PM
Replies: 6
Views: 2,294
Posted By LFarr

Sorry perform330.....my 25 has a solid hub sized...

Sorry perform330.....my 25 has a solid hub sized for the standard Bravo1......not the interchangable hub for larger xr and smaller B1.......thanks for asking
Forum: General Q & A
02-24-2007, 03:07 PM
Replies: 2
Views: 1,022
Posted By LFarr

ProCharger M3......? K&N adapted to Intake ?

Anyone adapted an intake filter to your M3......

This is a 4.5 inch dia. opening

Thanks
Forum: Prop Talk
02-24-2007, 02:39 PM
Replies: 6
Views: 2,294
Posted By LFarr

I have a few props you might be interested in ? ...

I have a few props you might be interested in ?

25p MiragePlus SS 3-Blade unmodified RH solid perfect $ 250

perfect condition less than 50 hours


25p Yamaha Pro-V SS 3-Blade unmodified RH...
Forum: Prop Talk
10-07-2006, 03:28 PM
Replies: 3
Views: 1,602
Posted By LFarr

Re: BBlades - can you reinstall a B1 diffuser ring

Ran-Dom 32,

Did you get any additional top speed / performance when the difusser's were removed ??
Forum: Prop Talk
09-21-2006, 08:55 PM
Replies: 13
Views: 1,955
Posted By LFarr

Re: I need Help

Rat,

You owe it to yourself to try a 5blade.

This year I went from a 2" shortie with 26p B1, to a 3" shortie and 26p Maximus.

top speed went from 75mph to 79mph.......and everything from...
Forum: Prop Talk
09-07-2006, 10:53 PM
Replies: 6
Views: 5,331
Posted By LFarr

Re: 89 260 ov - Best Prop for stock 454 w/Bravo 1

Need,

I also have an 89 260 OV

I ran both 19 and 21 pitch Mirage.

The 21 labbed was the best fortop speed.

I aslo liked the 4-blade Revolution probably a labbed 19 would be best for...
Forum: General Q & A
08-06-2006, 11:41 PM
Replies: 48
Views: 10,999
Posted By LFarr

Re: Holley jetting questions

Crazy,

You said that you have plenty of power out of the hole......

Try over-drive, i.e. go up 2 pitches from 17 to 19 or 19 to 21 or 21 to 23 on your Rev4.

BBlades has a test program and...
Forum: General Q & A
08-06-2006, 11:17 PM
Replies: 2
Views: 927
Posted By LFarr

BY-Pass Valve for Procharger

Anyone have knowledge of / used / installed a By-Pass Valve on a Procharger installation ??

I'm making over 10 #'s boost and would like to limit Boost to that amount.

I have a carbureted M3.
...
Forum: Prop Talk
08-04-2006, 07:09 PM
Replies: 14
Views: 4,779
Posted By LFarr

Re: Props for shorty drives

Kaama,

My situation is different from yours but I went from -2 Imco Shortie with 26p B1, to -3 and 26p Maximus 15 5/8 diameter had big increases everywhere AND top speed increased from 75 to 77...
Forum: General Q & A
08-02-2006, 12:24 PM
Replies: 12
Views: 3,640
Posted By LFarr

Re: Gates Belts

Anyone need a 12-rib

Part # on belt DB6701-12

other info on belt "MADE IN CANADA 268 BC 65-0"

This belt came from ATI with M3 purchased years ago, never installed, as it was either too...
Forum: General Q & A
08-02-2006, 01:44 AM
Replies: 9
Views: 2,089
Posted By LFarr

Re: Procharger Boost Pressure differential

Thanks Smitty,

Yours is the first data I ever seen on this subject.

I can't makeout the numbers on your guages. Can you provide the actual readings.

I'm blowing thru an 800 cfm Holly, with...
Forum: General Q & A
08-01-2006, 07:56 PM
Replies: 9
Views: 2,089
Posted By LFarr

Procharger Boost Pressure differential

I'm running a 500" BBC at 5400rpm I'm reading 10-11"s boost in the carb enclosure, with an 800cfm unmodified Holly 4780-4.

My question what pressure difference have you seen at WOT above and...
Forum: General Q & A
07-14-2006, 04:09 PM
Replies: 1
Views: 1,098
Posted By LFarr

Over Board water Dump, Performance ?

Anyone have actual experience with OBWD and actual performance improvement ??

I'm running Gil Magnum's, 4" exaust, 10# boost thru 500 inch BBC at 5500 rpm.

Would be intersted to know if you...
Forum: General Q & A
04-19-2006, 09:28 PM
Replies: 7
Views: 1,581
Posted By LFarr

Re: Can anyone do desk top dyno ?

if your tac is accurate and your slip is 10% then your speed is 73.86 mph.

your HP is probably not more than 465 in the 5200 rpm range, chev ZL-1 aluminum heads 12.5 :1 and maybe not quite the cam...
Forum: Detailing, Painting, & Fiberglass
04-19-2006, 05:54 PM
Replies: 38
Views: 39,095
Posted By LFarr

Re: Anyone added a pad to an older V-bottom?

CayFormula

Impressive numbers !!

I'd be interested to know what you're running for engines, gears & props.

I have a similar boat 27.5 ' searay single engine that I've taken from 43mph with...
Forum: Prop Talk
01-17-2006, 03:11 PM
Replies: 7
Views: 1,883
Posted By LFarr

Re: who's 5-Blade is better Hydro or Merc or ?

test to see if photo(s) appear
Forum: Prop Talk
12-14-2005, 08:00 PM
Replies: 5
Views: 1,392
Posted By LFarr

Re: What pitch to go with? (4700 rpm w/ 25p)

Zimm,

I have several props 1 or 2 might work for you.



19p Mirage SS 3-Blade repitched to 22p RH solid perfect $250

this prop was professionally balanced, repitched, and cup extended...
Forum: Prop Talk
11-15-2005, 01:36 PM
Replies: 18
Views: 2,227
Posted By LFarr

Re: Questions, need new prop

I have lots of experience with heavy single engine Boats.

I have a 89 sea ray 260 OV 6000# going 73 mph on gps, started out at 43 with stock 454, made lots of changes, i.e. engines, drive(s),...
Forum: Prop Talk
09-28-2005, 09:41 PM
Replies: 5
Views: 1,622
Posted By LFarr

Re: 28 Maximus on a 260 Velocity

Hey, Velocity4ME........What about top speed.....did you see any change ??
Forum: Prop Talk
08-30-2005, 07:11 PM
Replies: 7
Views: 1,883
Posted By LFarr

Re: who's 5-Blade is better Hydro or Merc or ?

Thanks Julie......

Do you have a demo program for either prop ?

What should I expect to pay for either prop?

Thanks.......Larry
Forum: Prop Talk
08-29-2005, 08:45 PM
Replies: 7
Views: 1,883
Posted By LFarr

who's 5-Blade is better Hydro or Merc or ?

I'm running a heavy single engine Searay, 27' 6000#'s with Procharged 500" bbc.

Now seeing 75mph (gps), w/4-blade B1 26p @ 5500 rpm.

I want to try a 5-blade and would like to know what someone...
Forum: Prop Talk
08-20-2005, 05:11 PM
Replies: 11
Views: 3,373
Posted By LFarr

4 Blade switch to 5 Blade ? Your experience

I'm hearing good things from two guys who switched from Bravo1 4 blade to 5 Blade.

Better hole shot & improved stability.

One person with twins went faster, the other single engine application...
Forum: General Boating Discussion
07-06-2005, 02:05 PM
Replies: 5
Views: 1,117
Posted By LFarr

Blew Bravo 1 upper....your recommendation for replacement ?

After about 100 hours behind 500 inch BBC with 9-10 boost, my stock B1 upper blew, i.e. gear broke, locked & sheared shaft.

Upper totally destroyed.

What do you recommed for replacement.

I'm...
Showing results 1 to 25 of 27
 
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