What Pump Combo 4 A Big Bore+5mm Mtr

[kevbo]

So far all the props that you have tried are light loads for a 701. Try a higher pich prop or smaller nozzle.

 

[Speedfreak]

I missed where he said he had a protec nozzle.

yeah, they dont have straitening fins, and they tend to cavitate.

Mine has fins it just had that extra volume that it didn't need. Works great on a limited setup TONS of low end but when you put that much horse power in front of it blah... nothing.... just spins like crazy.

 

[GIL]

Thanks for all the input guys. I will try to find a nozzle that my Virgin will bolt up to that is NOT a Pro Tec nozzle.

 

[MADMAT]

I honestly think the 86mm exit nozzle is my issue, but have been to dam dumb to snag the stuff off of my wife's SJ to try.

I could not do 85 w/ short cone on OEM pump w13/16 -3.

It was horrible!!

 

[keefer]

I currently have the solas 13/18 with TBM, short cone, & 82mm nozzle and it works pretty good. Lots of grunt and low cavatition I am going to try a C+75 12/17 first and then try a 83 or 84mm nozzle next. I am hoping for better hook up and all around increases. Gil I agree with everybody saying to ditch that big ole protect anchor and drop down to a bored 83mm stock nozzle and see what happens with the TBM, short cone & the C+75.

 

[D Slicker]

This is gonna probably sound wierd coming from me, but I would talk to paul and do whatever he thinks would be best.:wall: He built your motor and recommended the prop, carb, fuel, pump, etc. combo and he will be your best bet for getting it straightened out. I know when Art builds my motors, he has very specific recommendations for every facet of the package. If I were to opt out of some part of his package because somebody on the board thinks it's a good idea or because I had problems initially, I wouldn't have boats that run the way mine do.:wink:

I would 2nd that. I'm sure gil has his cell number to get a hold off him since he isn't at the shop.

 

[Big Kahuna]

hey Gil, I have a raider trim reduction nozzle at the house if you want to try it.

let me know.

 

[GIL]

hey Gil, I have a raider trim reduction nozzle at the house if you want to try it.

let me know.

I would LOVE to-I assume the oem raider nozzle would work w/my Virgin trim?
That would be F'in sweet if that was the final piece to the puzzle.

 

[sjetrider]

IMO, you need at least 13/18 pitch. Send the prop to RD to be repitched. Also 86mm exit nosel is screwing you IMO as well, go back to stock 81mm and the short cone OR run the long cone with the 86mm bore as a secondary option.

BETTER YET BUY A 144 MAG PUMP and BE DONE!!!!!!!!

 

[GIL]

IMO, you need at least 13/18 pitch. Send the prop to RD to be repitched. Also 86mm exit nosel is screwing you IMO as well, go back to stock 81mm and the short cone OR run the long cone with the 86mm bore as a secondary option.

BETTER YET BUY A 144 MAG PUMP and BE DONE!!!!!!!!

Yeah, I have a stk nozzle to try, and a stk bored to 85 to try-I'll just have to ditch the trim to try them. Not a problem for test purposes-once I know what nozzle works-then I can figure out what compatible nozzle for trim.

If I had your money, I'd buy u and me a new MAG. LOL

 

[Big Kahuna]

hey Gil, shoot me your addy or come get it and the trailer!!!!!!!

 

[HBCwatercraft]

paul old me to run a 144 12 vein mag non setback with the motor he's building me
TL PV 7MM LAM 85MM BORE.

 

[HBCwatercraft]

ps. and a 85mm reduction nozz

 

[thegoldenboy]

Sell me the 13/16 -3", or the 12/17 standard. Never heard from you man!

 

[GIL]

Sell me the 13/16 -3", or the 12/17 standard. Never heard from you man!

Had a riding buddy that needed the 12/17 Skat and the Solas is in my wife's SJ.

 

[GIL]

Soooooooooooo-u r suppose to have a big gap between 'pump packing' and hull-right??? Stuck a flash light in pump and had a minimum of 1/8" gap between seal and hull. LOL I am becoming such a Wasteland. LOL Oh yeah, I also measured my 86mm exit nozzle-IT'S ACTUALLY 82.5mm. So much for assuming what people say is a fact. Live and learn.

 

[njfl]

Soooooooooooo-u r suppose to have a big gap between 'pump packing' and hull-right??? Stuck a flash light in pump and had a minimum of 1/8" gap between seal and hull. LOL I am becoming such a Wasteland. LOL Oh yeah, I also measured my 86mm exit nozzle-IT'S ACTUALLY 82.5mm. So much for assuming what people say is a fact. Live and learn.

First of all, who told you it was an 86mm exit nozzle?

Second, would you do a favor and only address the packing problem without doing anything to the nozzle? If you find that that is the bulk of your problem, then you could dispell a myth of the strong dependence of nozzle bore on performance (not that I use the word "strong dependence").

On that, take the pump off and look at the packing. Yours may have been used way too many times and you just need a new one. Or, you may actually have to elongate the pump ear bolt holes to scoot it forward the needed 1/8".

Good luck and keep us informed.

 

[tricky1]

Soooooooooooo-u r suppose to have a big gap between 'pump packing' and hull-right??? Stuck a flash light in pump and had a minimum of 1/8" gap between seal and hull. LOL I am becoming such a Wasteland. LOL Oh yeah, I also measured my 86mm exit nozzle-IT'S ACTUALLY 82.5mm. So much for assuming what people say is a fact. Live and learn.

:shrug: should have checked that a long time ago. :shrug:

 

[RoyalFlush@PCB]

LOL I am becoming such a Wasteland.

Jesse's gonna' kick your ass when he gets out of Basic Training. HooRah!!! :nutkick:

 

[GIL]

:shrug: should have checked that a long time ago. :shrug:

U r soooooooo freegin right!!! W/ u replied to check for a air leak-I was like WTF? After looking at it-I then knew WTF. LOL One of those problems I had never run into.