Formula 292 SR1 Props?
#21
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QS props by Mercury/Quicksilver. Predecessor to the Mirage
QS props by Mercury/Quicksilver. Predecessor to the Mirage
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Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
#22
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I have owned several Formula's, 1985--302 1986-272 1987--292 Can't remember, but one of these had a turned down outter chine. Look under the back of your boats. This would explain the slower hall speed. -- This controls stability and slows the boat. My 311 with 330Hp runs on the GPS at 63 at 4600RPM with 23P old mercs. Don't know if this will help
thanks.
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#24
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Ran the stock bravo1's today, 22p at 4500 rpm, FULL tank if gas at 58 mph WOT. Nice Holeshot, better stability/cruise than the "old" quicksilver's. Nice rooster tail too...
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build
endeavour32,
Tell me about your upgrade build over the winter the the mags. I thinking to go that route, not to crazy, 70mph is fine for me and family...58 not acceptable now. My blocks are fresh but still non mags, heads arent -one large oval the other a peanut oval...carbs jst rebuilt. Stock exhaust.
Or should I start from a 502 block and work from there. are the wider? Seems no room as it is.
mike
Tell me about your upgrade build over the winter the the mags. I thinking to go that route, not to crazy, 70mph is fine for me and family...58 not acceptable now. My blocks are fresh but still non mags, heads arent -one large oval the other a peanut oval...carbs jst rebuilt. Stock exhaust.
Or should I start from a 502 block and work from there. are the wider? Seems no room as it is.
mike
#27
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It was a pretty mild build. Basically the bottom end is all stock. I had the block honed and cleaned, the rotating assemblies balanced. Then new bearings and rings. The heads were rebuilt and I installed new isky retainers and keepers as well as new isky springs.
The carbs are HP 500 carbs
intakes are Edelbrock RPM's (I think the stock intake manifolds would be fine)
Gil Exhaust
The biggest change was the valve train. I got a set of Reed roller cams that were ground for a 509 blower engine from Mild Thunder. The grind was 231/237, .578/.578 lift at 112. I'm running Morel roller lifters and Crane Gold rockers 1.7/1.8 ratio. I really haven't totaled up what I have into the engines but I would say close to $5-6000.00 when it was all said and done.
If you could find a set of merc 525 cams they would be a good choice in my opinion for a budget build and I believe are very close to what I'm running. Is your boat the one that has the Mag engines with the Comp Cams? if so, you may be able to just swap your cam over to a roller set up and be good to go.
Plan on the following- 2 new cams, roller rockers, roller lifters, push rods, new springs, retainers and locks, timing set and new timing cover (for roller cam). Plan on about $4000 for those parts, and that would be if your can find the cams used for about $150 per cam. If your running the stock exhaust plan on another 1000-1500 for Gil or equivalent exhaust.
The carbs are HP 500 carbs
intakes are Edelbrock RPM's (I think the stock intake manifolds would be fine)
Gil Exhaust
The biggest change was the valve train. I got a set of Reed roller cams that were ground for a 509 blower engine from Mild Thunder. The grind was 231/237, .578/.578 lift at 112. I'm running Morel roller lifters and Crane Gold rockers 1.7/1.8 ratio. I really haven't totaled up what I have into the engines but I would say close to $5-6000.00 when it was all said and done.
If you could find a set of merc 525 cams they would be a good choice in my opinion for a budget build and I believe are very close to what I'm running. Is your boat the one that has the Mag engines with the Comp Cams? if so, you may be able to just swap your cam over to a roller set up and be good to go.
Plan on the following- 2 new cams, roller rockers, roller lifters, push rods, new springs, retainers and locks, timing set and new timing cover (for roller cam). Plan on about $4000 for those parts, and that would be if your can find the cams used for about $150 per cam. If your running the stock exhaust plan on another 1000-1500 for Gil or equivalent exhaust.
Last edited by endeavour32; 09-09-2012 at 10:15 AM.
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#30
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Thats a 22 pitch left hand QIV. I think thats way to low of a pitch, with 330's I was spinning 24's @ 4600 RPMs. Look for a set of 24's nothing smaller than 23's. As long as you get a good deal on them you can recoup the money if they don't work. A good price this time of year would be $500 for a pair. Anything less would be a killer deal, IMO.