JC's Nosecones?

[[email protected]]

Anybody have any info on JC's nosecones? Like where they are in Tennessee, or a website or a phone number or something? I am told to look them up for mods to a stock lower for an Allison. Thanks, Craig :cheers:

[XSive]

JC's Propeller Service
1737 County Road 107
Killen, AL 35645
256-757-5718

[[email protected]]

Thanks for the reply XSive, I have been searching since I started the post and have read that JC's is now a prop shop and the nosecone part sold to Titus. Know anything about that? I have read and heard great things about Titus. Something about building a better nosecone for Allisons than Bob's. thanks for the help, Craig :thumbsup:

[XSive]

Thanks for the reply XSive, I have been searching since I started the post and have read that JC's is now a prop shop and the nosecone part sold to Titus. Know anything about that? I have read and heard great things about Titus. Something about building a better nosecone for Allisons than Bob's. thanks for the help, Craig :thumbsup:

You are wrong. I have a torquemaster case at his shop right now getting a nosecone done.

JC did not sell it to Titus either, he sold it to Tooter Meridith (sp?) who sold it to Titus. JC started doing it again a couple of years ago. I had him do a case for me last year, and it rocks.

Here is a pic of last years one....

[[email protected]]

You are wrong. I have a torquemaster case at his shop right now getting a nosecone done.

JC did not sell it to Titus either, he sold it to Tooter Meridith (sp?) who sold it to Titus. JC started doing it again a couple of years ago. I had him do a case for me last year, and it rocks.

Here is a pic of last years one....

Thank you for the correction. I did read that it went to Tooter first but forgot to put that in my message above. OK so now the question...Titus or JC's? What did he charge you for the job if you don't mind me asking? Just curious. I have read that Titus is a bit more for a sportmaster or torquemaster over a stock 200 case. Thanks, Craig :thumbsup:

[KeysDisease]

I'm also interested. So not Bob's? Sorry, still learning.

[[email protected]]

I have heard good things about Bob's, I asked about JC's cuz it was recommended for an Allison. Maybe Xsive will come back on and explain more about the 2. His personal experience, if yo read his answer, has been better with JC.

[RB in NM]

My 200 case is in route to JC now.
He did sell, as said. He told me Friday that he has his own new cone design he is using now. I'm getting the 2 hole and tab suspposed to be around 475 bucks. Been hearing bad things about Bob's quality these days.

Russ

[[email protected]]

Thanks Russ....475.00 seems very reasonable. Now I have to wait and see how the hull reacts to the stock lower and stock 200EFI. The good thing is I have a Brucato SVS and ACU on the 200 which really perks it up and Merc scoops on the lower. the scoops really do work. Thanks, Craig :thumbsup:

[Brack]

JC has done 2-200 cases for me the last couple of years,...with his Allison mods he does, it is the best driving, fastest case I've ran,...and never had any issues with his work.

[[email protected]]

That sounds terrific Brack. Hopefully, I will have enough grunt with my 200 to be able to benefit from a nosecone and LWP. I see you are running a 260. That's some power!! :thumbsup:

[[email protected]]

My 200 case is in route to JC now.
He did sell, as said. He told me Friday that he has his own new cone design he is using now. I'm getting the 2 hole and tab suspposed to be around 475 bucks. Been hearing bad things about Bob's quality these days.

Russ


I would love to have Jay Smith beef up my 200 someday. What did you start with on the JSRE promax? And,I have always wondered what makes a Promax a Promax. I sometime don't undeerstand why a 200EFI for example, will run 5800RPM's and the same 200 in a Promax will be set to run at 6750RPM's.

[Scott in MN]

JC has done 2-200 cases for me the last couple of years,...with his Allison mods he does, it is the best driving, fastest case I've ran,...and never had any issues with his work.

I can second the JC's cone. Drives better and faster than my Bob's CLE....

[Brack]

JC gearcase Photo......:thumbsup:

[[email protected]]

That looks really awesome, Brack!! Nice work! :cool::thumbsup:

[RB in NM]

I would love to have Jay Smith beef up my 200 someday. What did you start with on the JSRE promax? And,I have always wondered what makes a Promax a Promax. I sometime don't undeerstand why a 200EFI for example, will run 5800RPM's and the same 200 in a Promax will be set to run at 6750RPM's.



The Pro max has a bit different porting than the consumer motor, different ECU's that allow a bit more rpm.

My motor in stock form was always hitting 7k rpms, tried a couple different tachs, same thing. Guess I had one of them "happy tuesday ecu's"..Someone ran my motor hot for me :mad: and I lost #5 ring due to locater pin coming out that afternoon. So I did not ease into my JSRE build, it went full on.
BUT, I had been buying all sorts of parts and pieces prior to my motor getting smoked, so I had most everything already bought , and I bought good stuff at good used cheap prices right here on S&F.:cheers: MY PM has Brucato PCU,SVS,John Marles top pinned 260 pistons and cooling mods,different fuel system,All of Jays work,cutting,balanced,porting,flywheel,etc,etc..... It's a stout motor, very reliable too.

Russ

[XSive]

The Pro max has a bit different porting than the consumer motor, different ECU's that allow a bit more rpm.

My motor in stock form was always hitting 7k rpms, tried a couple different tachs, same thing. Guess I had one of them "happy tuesday ecu's"..Someone ran my motor hot for me :mad: and I lost #5 ring due to locater pin coming out that afternoon. So I did not ease into my JSRE build, it went full on.
BUT, I had been buying all sorts of parts and pieces prior to my motor getting smoked, so I had most everything already bought , and I bought good stuff at good used cheap prices right here on S&F.:cheers: MY PM has Brucato PCU,SVS,John Marles top pinned 260 pistons and cooling mods,different fuel system,All of Jays work,cutting,balanced,porting,flywheel,etc,etc..... It's a stout motor, very reliable too.

Russ

Russ, you are wrong on the porting comment.Mercury parts catalogue, the 200EFI and the 200Promax have the same part number for the block. There is no difference.

Where the difference is, is in: Reeds and ECU as far as powerhead items are concerned and of course solid mounts, cowling, and gearcase for the rest of the motor. The reason why you can rev a Promax to 6700 as opposed to 5800 for the stock one is essentially the fiber versus steel reeds, and a reprogrammed ECU.

[tomoad]

I as well had Jay do the modding to mine but with wizards forged pistons, I did it so I would not have to rering every 130 to 150 hrs of use like the 260/280, been a very reliable stout motor

[RB in NM]

well, i guess i can stand corrected...I wuz told there was some porting difference.

Tomoad,,, How ya doing bud? Ever git her leaned out a little bit ? ? Lemme kno' how the little black motor is doing.

RB

[Brack]

Russ....your ProMax started as a 225 didn't it?......If I was bett'in the 225 pm porting is alot diff than the 200......:confused:

[RB in NM]

Hello Brack ! Yepper, used to be a bone stock 98 model 225 15" Pro Max.

But now it'z gots big ole' wallered out holez in them cylinders....:p:p:p

Russ

[[email protected]]

Russ, you are wrong on the porting comment.Mercury parts catalogue, the 200EFI and the 200Promax have the same part number for the block. There is no difference.

Where the difference is, is in: Reeds and ECU as far as powerhead items are concerned and of course solid mounts, cowling, and gearcase for the rest of the motor. The reason why you can rev a Promax to 6700 as opposed to 5800 for the stock one is essentially the fiber versus steel reeds, and a reprogrammed ECU.

So if my 200 EFI has solid engine mounts, the yellow boysen reeds like in a promax and a Brucato SVS and ACU then is mine like a Promax? Tony has the WOT rpm's programmed to 6750 limit. The only thing I have differnt is a stock 200 lower with 1.87 gears. I dropped this stock rebuilt powerhead on my 1991 mid which was a 150 XR4 to start. The oil injection and the small black boxes have been removed and I premix now40:1. These are things I had done to the engine so far. Thanks, Craig :cheers:

[[email protected]]

Now I am confused. From what I have read and learned here about powerheads and such that peak power is attained from the correct HP curve depending how the engine was built at a given RPM range. So then how can a 200 EFI and 200 Promax be the same if they had the same internals you just mentioned but operate at different WOT RPM's. For example, I have been running my 200 at 5800 rpm's with a 24P TXP O/T 4 fat WOT for 72MPH. To hit 5750r's I would have to drop down at least 4 pithces in prop. Please explain.

[XSive]

Now I am confused. From what I have read and learned here about powerheads and such that peak power is attained from the correct HP curve depending how the engine was built at a given RPM range. So then how can a 200 EFI and 200 Promax be the same if they had the same internals you just mentioned but operate at different WOT RPM's. For example, I have been running my 200 at 5800 rpm's with a 24P TXP O/T 4 fat WOT for 72MPH. To hit 5750r's I would have to drop down at least 4 pithces in prop. Please explain.

I doesn't necessarily mean that it makes peak power at 6700. The curve may be very flat or drop off in the higher RPM's but not significantly. The advantage that it does have is allowing you to run smaller pitched props to attain the same or more top end while improving acceleration.

[XSive]

Take a look at the picture below and examine the 250XS power curve... Now take a look at the 250 RPM ratings.... In the link below it gives its operating range as 52-5800RPM... Notice how the power drops off after 5250, but is still well above 250hp...I suspect that you could see something similar on the respective 200's except flatter over a longer RPM range.



http://www.mercuryracing.com/outboards/optimax250xs/specs.php

[[email protected]]

so the 250XS is reaching its peak HP of 270HP at 5250 to5500 and then drops off to 260HP at 6000r's. In essence, that confirms what I was saying that an engine is designed to run at its peak HP vs RPM range for best performance. Therefore the Promax must be built different to achieve its peak HP at or near 6500 r's. And a stock 200 built to reach its peak at or near the 5500 r range.

[[email protected]]

But the stock 200 would drop signicicantly after 6000 r's til it would reach that some RPM range of the Promax's peak HP. Does that make sense? So even though like you mentioned above that the blocks are the same part number something else has to be done somewhere to the engine besides those parts mentioned to increase the HP curve to peak further up the RPM range of the Promax than the stock 200. I am not trying to be argumentative but just trying to understand.
I bought my fresh rebuild powerhead from a guy here on S&F last year and it runs great. He left the oil injection stuff off internally when he built it and said to run it all day at 7000 RPM's. It was carbed but i had it converted to EFI with the Brucato stuff on it to try to make it more efficient and stronger. But I would never be able to hit high R's with a 24P prop on my heavy Astro. The Allison will be a different story. I guess I should mention to Todd and Joe at C&O Marine that my engine will be able to run higher R's to prop it correctly for my new hull. sorry for writing so much and not trying to differ. I am willing to hear more explanations if ya have it. Craig :thumbsup::cheers:

[bits&pieces]

JUst my 2 cents I thought the 245 hi perf carb vs pm225 had same porting? just not a nic block on pm my buddy has a 225pm and turns over 7,took off the lazer injection and went with hi perf carbs from a 245 card mota'?runns damn close to my stv procomp witch is lighter with slightley ported on the roof of the exhaust to 9200 he stays with me in the 1/4 mile with a 26p/a run a 28psoddy daisy.:cheers:

[woodduck]

Take a look at the picture below and examine the 250XS power curve... Now take a look at the 250 RPM ratings.... In the link below it gives its operating range as 52-5800RPM... Notice how the power drops off after 5250, but is still well above 250hp...I suspect that you could see something similar on the respective 200's except flatter over a longer RPM range.



http://www.mercuryracing.com/outboards/optimax250xs/specs.php


Apparently the Merc ECU has a few differant curves in it, if you get it switched to the right one you will reap the benefits!:thumbsup:

[john4utvols]

I have heard good things about Bob's, I asked about JC's cuz it was recommended for an Allison. Maybe Xsive will come back on and explain more about the 2. His personal experience, if yo read his answer, has been better with JC.

JC is the man. He done all the prop and lower unit work for Jaco when they were setting records for Allison. I have had 4 lowers from JC.

[[email protected]]

Thanks for all the advice. It's a JC's case then!! :thumbsup:

[Steven@BMS]

Been hearing bad things about Bob's quality these days.

Russ

Such as what? We still give the exact same 2 year warranty on the finish as we always have. If there is ever a customer not happy we make them happy, even when it's not our fault.

:cheers:

[bits&pieces]

You are wrong. I have a torquemaster case at his shop right now getting a nosecone done.

JC did not sell it to Titus either, he sold it to Tooter Meridith (sp?) who sold it to Titus. JC started doing it again a couple of years ago. I had him do a case for me last year, and it rocks.

Here is a pic of last years one....
Hey man I broke 2 torguemaster before going with a sprtmaster.torquemaster won't last lang at high tramsom hights like my stvI belive 24 and below for tougue and higher for sport.learned this this had way,mercury warranity it for me since I'm a dealer(lucky) just my experance!Dewayne Martin